Delta OHM HD35 Series Manual 

product. This may produce some differences between the information written in this manual and the instrument you have purchased. We cannot completely exclude the possibility of errors in the manual, for which we apologize. The data, images and descriptions included in this manual cannot be legally asserted. We reserve the right to make changes and corrections with no prior notice. REV. 1.3 11/04/2014 HD35… series Wireless Data Logging System ENGLISH

TABLE OF CONTENTS 1 INTRODUCTION.................................................................................................... 4 2 SYSTEM COMPONENTS.......................................................................................... 5 3 INSTALLING THE SYSTEM..................................................................................... 6 4 NETWORK MODIFICATION.................................................................................. 12 5 INSTALLING THE HOUSING FOR INDOOR USE.................................................... 13 6 BASE UNIT HD35AP… ......................................................................................... 14 6.1 AVAILABLE VERSIONS.......................................................................................... 14 6.2 DESCRIPTION ................................................................................................... 14 6.3 RF LEDS SIGNALS............................................................................................. 15 6.4 USB CONNECTION ............................................................................................. 15 6.5 ETHERNET OR WI-FI CONNECTION........................................................................ 15 6.6 RS485 CONNECTION.......................................................................................... 17 6.7 GSM CONNECTION ............................................................................................ 18 6.7.1 SENDING COMMANDS TO THE BASE UNIT FROM A MOBILE PHONE ............................ 18 6.7.2 GPRS TCP/IP CONNECTION ..................................................................... 20 6.8 TECHNICAL FEATURES OF THE BASE UNIT ................................................................... 21 7 HD35RE REPEATER ............................................................................................. 22 7.1 DESCRIPTION ................................................................................................... 22 7.2 CONNECTION TO THE WIRELESS NETWORK ................................................................. 22 7.3 TECHNICAL FEATURES OF THE REPEATER .................................................................... 23 8 HD35ED… DATA LOGGERS FOR INDOOR USE...................................................... 24 8.1 DESCRIPTION ................................................................................................... 24 8.2 CONNECTION TO WIRELESS NETWORK....................................................................... 28 8.3 DATA LOGGERS WITH LCD OPTION.......................................................................... 28 8.3.1 MAXIMUM, MINIMUM AND AVERAGE OF THE MEASUREMENTS ................................. 30 8.4 THE MENU IN LCD DATA LOGGERS .......................................................................... 30 8.4.1 THE MENU IN DATA LOGGERS WITH GRAPHIC LCD............................................. 30 8.4.2 THE MENU IN DATA LOGGERS WITH CUSTOM LCD ............................................. 34 8.5 CONNECTING THE MODEL WITH TERMINAL HEADER INPUTS............................................... 37 8.5.1 INPUTS CONFIGURATION .......................................................................... 37 8.6 CALIBRATION ................................................................................................... 39 8.6.1 CO SENSOR CALIBRATION ........................................................................ 39 8.6.2 REPLACING THE CO SENSOR...................................................................... 40 8.6.3 CO2 SENSOR CALIBRATION........................................................................ 41 8.6.4 CO2 SENSOR AUTOCALIBRATION ................................................................. 42 8.6.5 CALIBRATING THE RELATIVE HUMIDITY SENSOR................................................ 43 8.6.6 DIFFERENTIAL PRESSURE CALIBRATION ......................................................... 44

8.6.7 SENSITIVITY OF THE ILLUMINANCE AND/OR UVA IRRADIANCE PROBE....................... 44 8.7 TECHNICAL CHARACTERISTICS OF DATA LOGGERS IN INDOOR USE HOUSING .......................... 45 9 HD35EDW… WATERPROOF DATA LOGGERS........................................................ 50 9.1 DESCRIPTION ................................................................................................... 50 9.2 INSTALLATION OF WATERPROOF HOUSING .................................................................. 52 9.3 CONNECTION TO THE WIRELESS NETWORK ................................................................. 53 9.4 DATA LOGGER WITH LCD OPTION ........................................................................... 53 9.5 TECHNICAL CHARACTERISTICS OF DATA LOGGERS IN WATERPROOF HOUSING .......................... 54 10 HD35ED-ALM REMOTE ALARM DEVICE................................................................ 57 10.1 DESCRIPTION ................................................................................................... 57 10.2 CONNECTION ................................................................................................... 57 10.3 CONNECTION TO THE WIRELESS NETWORK ................................................................. 58 10.4 TECHNICAL CHARACTERISTICS OF THE ALARM DEVICE ..................................................... 58 11 MODBUS ............................................................................................................. 59 12 DIMENSIONS...................................................................................................... 71 13 RELATIVE HUMIDITY AND TEMPERATURE PROBES............................................. 73 14 STORAGE OF INSTRUMENTS ............................................................................... 77 15 SAFETY INSTRUCTIONS...................................................................................... 77 16 ORDERING CODES .............................................................................................. 78

1 INTRODUCTION The Delta OHM wireless data logging system allows several physical quantities to be monitored in a large variety of application fields. Data loggers are available for the monitoring of: • Temperature • Relative humidity • Atmospheric pressure or differential pressure • Luminance (lux) and UV irradiance • Carbon monoxide (CO) • Carbon dioxide (CO2) • Solar radiation and rainfall quantity • Acceleration The models that measure relative humidity and temperature calculate humidity derived quanti- ties. Calculated quantities depend on the model and can be: dew point temperature, wet bulb temperature, absolute humidity, mixing ratio, partial vapor pressure. Data loggers provided with built-in sensors and data loggers with external probes are avail- able. They can be connected through M12 connectors or terminals according to the model. The data logger with terminal header input can be connected to: • Transmitters with 0÷20 or 4÷20 mA current output and 0÷1 V or 0÷50 mV voltage output • Pt100 / Pt1000 temperature sensors and K, J, T, N, E thermocouples • Voltage-free contact output (commutations counting) or potentiometric sensors This allows the monitoring capability of the system to be extended to many other quantities in addition to the ones mentioned above. For each detected quantity, the user can set two alarm thresholds (high threshold and low thresh- old). The overrun of the thresholds can be indicated by an audible signal of the data logger through an internal buzzer; the alarm signal is immediately transmitted to the base unit and dis- played on the PC. A wireless remote alarm module with relay output is available allowing other signaling devices (sirens, flashing lights…) or actuators to be activated. If the system is equipped with a GMS module, the alarm is signaled also by e-mails or SMS messages. Systems with the following transmission frequencies are available: 868 MHz (in compliance with EN 300 220 European Directive), 902-928 MHz (in compliance with U.S. FCC part 15 section 247 and I.C. RSS-210 Directives) and 915,9-929,7 MHz (in compliance with ARIB STD-T108 standard). Thanks to wireless transmission, the installation of the system is a very simple and quick op- eration. In addition, the user will not have to remove the data logger from its position or reach the place where the data logger is installed to download the data measured with the PC. The correctness of the transmitted data is ensured by the bidirectional communication be- tween the base unit and the remote data loggers. HD35AP-S basic PC software supplied with the product allows configuration of all system de- vices, display of connection status, level of the RF signal and battery charge level, data auto- matic download at regular intervals or manual download on request of the user. The data transferred to the PC are entered into a database. If the PC is connected to a local network, in- stalling the advanced version of HD35AP-PLUS software (optional) allows also other com- puters connected to the same local network to access the data stored into the database. Data loggers comply with EN 12830 standard. The PC application software HD35AP-S is de- signed in compliance with FDA 21 CFR part 11 recommendations: the operations are pro- tected by access codes and, in the advanced version, a record of the performed operations is kept.

2 SYSTEM COMPONENTS The system consists of the following components: • HD35AP… base unit • HD35RE repeater • HD35ED… series of data loggers • HD35ED-ALM remote alarm device HD35AP… BASE UNIT This device acts as an interface between the network data loggers that are positioned in the measurement sites, and the PC. It communicates wireless with the remote data loggers. Fig. 2.1: base unit placed between data loggers and PC HD35RE REPEATER This device is able to act as a bridge between the base unit HD35AP… and the remote data loggers HD35ED…, allowing the communication distance between data loggers and base unit to be increased. Several repeaters in cascade can be used. Fig. 2.2: repeater placed between data loggers and base unit The typical transmitting range between two devices in direct communication is 300 m in open field. The range can be reduced in the presence of obstacles or adverse atmospheric conditions. HD35ED… DATA LOGGERS Remote devices with measurement probes. They are installed in the locations to be monitored. They acquire measurements, store them in the internal memory and send them automatically to the base unit at regular intervals or on request of the user. Versions with or without LCD display are available. HD35ED-ALM REMOTE ALARM DEVICE Device equipped with relay outputs that allows to activate, in case of an alarm, signaling de- vices (sirens, flashing lights…) or actuators. Base unit Datalogger PC Base unit Datalogger PC Repeater

3 INSTALLING THE SYSTEM Before placing the devices in the final working environment, it is recommended to perform the system function test on the bench. The bench test allows also the wireless network to be con- figured more easily, in case the supplied system is not factory-configured. To check and make the system operational, proceed as follows: Fig. 3.1: system installation procedure 1. Install HD35AP-S and MySQL softwares 2. Connect the battery to the base unit 3. Connect the base unit to the PC 4. Connect the software to the base unit 8. Add devices to the network 9. Check RF communication quality Network factory-configured Network not configured 10. Install the devices 7. Activate the RF stage of the devices 11. Check if the devices can be reached All devices can be reached Some devices cannot be reached 12. Add repeaters to the network Installation Completed 13. Configure network parameters 5. Check the clock setting 6. Connect the battery of the other network devices

1. INSTALLING HD35AP-S SOFTWARE The base unit is supplied with a CD-ROM containing the HD35AP-S software and MySQL Data Base Management System. Install both HD35AP-S and MySQL in your PC. Concerning the in- stallation of MySQL, thoroughly follow the installation guide contained in the CD-ROM. 2. CONNECTING THE BASE UNIT BATTERY For shipments by aircraft, the battery of the devices must be disconnected. 1. Unscrew the 4 front screws of the housing and remove the back cover. 2. Attach the battery connector to the electronic board, paying attention to the correct po- larity. The connector is equipped with a polarization key that prevents the possibility of a wrong insertion of the connector. Fig. 3.2: battery in the devices in housing for internal use 3. Close the housing by fixing the 4 front screws. • Factory-configured system: first connect the battery of the base unit and check the clock setting. Only after this operation, connect the battery of the data loggers, so that the clock can be synchronized with the updated clock of the base unit at startup. • Not configured system: at startup, data loggers don’t synchronize the clock with that of the base unit, consequently it is not important to power the base unit as first. 3. CONNECTING HD35AP… BASE UNIT TO YOUR PC All the versions of the HD35AP... base unit can be connected to the USB port of a PC through the CP23 cable. The mini-USB connector of the base unit is located in the bottom part of the housing. In this connection mode, the base unit is powered through the USB port of the PC. Fig. 3.3: connecting the base unit to your PC The connection through the CP23 cable doesn’t require the installation of USB drivers: when the base unit is connected to the PC, Windows® operating system automatically recognizes the unit as an HID (Human Interface Device) device and uses the drivers already included in the operat- ing system. Battery Battery connector

Note: even the base unit HD35APW, with Wi-Fi and Ethernet interface, must first be connected to the PC via USB through the CP23 cable for setting the parameters of the local network (e.g., for setting the IP address, for choosing the Wi-Fi or Ethernet mode, etc.). 4. CONNECT THE SOFTWARE TO THE BASE UNIT Start the HD35AP-S software in your PC and perform the connection procedure illustrated in the chapter " Connection to base unit " of the software online help (software instructions are also available in PDF format in the CD-ROM). 5. CHECK THE CLOCK SETTING Select the item " Setting of date and time " of HD35AP-S software and make sure that the clock of the base unit is updated. If the clock is not updated, set it as explained in the chapter " Clock setting " of the software online help. 6. CONNECT THE BATTERY OF THE OTHER NETWORK DEVICES Connect the battery of the other devices following the procedure indicated at step 2 of the pre- vious page. In the devices with waterproof housing, the position of the battery and the connec- tor is shown in the following figure. Fig. 3.4: battery in devices with waterproof housing • Factory-configured system: at startup, data loggers synchronize the clock with that of the base unit. If the base unit is not yet connected to the power supply, the synchronization fails and data loggers with LCD option display the clock setting window. Clock synchronization will anyway take place automatically after connecting the base unit to the power supply. Mean- while, data loggers start storing measurements with their date and time, not synchronized with respect to the system measurements. If you wish to set the clock manually, see para- graph The menu in LCD data loggers on page 30. • Not configured system: at startup, data loggers don’t synchronize the clock with that of the base unit. In the data loggers with LCD, the window for the clock setting is displayed. Clock synchronization will take place automatically after network configuration (step 8), in the meantime data loggers start storing measurements with their date and time. If you wish to set the clock manually, see paragraph The menu in LCD data loggers on page 30. 7. ACTIVATING THE RF STAGE IN THE DEVICES (DATA LOGGERS, REPEATERS AND ALARM MODULES) In the devices belonging to a factory-configured system, the RF stage is activated automati- cally. In this case, proceed to step 9. If the system is not factory-configured, the RF stage of the devices will have to be activated manually by pressing the connection button for 5 seconds. In the models in indoor-use housing, the connection button is on the front panel. Battery Battery connector

Fig. 3.5: connection button in models in indoor-use housing In models with waterproof housing, the connection button is inside the instrument (see fig. 9.3.1 on page 53). The activation of the RF stage is signaled by the lightning-up of the green RF LED for one sec- ond and by a beep of the buzzer. Successively, the red RF LED will start blinking until the de- vice is added to a wireless network following the procedure indicated at step 8. In data loggers with LCD display, the activation of the RF stage is signaled also by the connec- tion icon. The icon will go on blinking until the device is added to a wireless network. Fig. 3.6: connection icon in the display In case of doubt of the RF stage status in the devices without LCD (for example, because LEDs seldom blink due to a long logging interval), press the connection button for 5 seconds. If the green RF LED lights up, the RF stage was not active and will be activated. If the red RF LED lights up, the RF stage was already active and will be deactivated; in that case, press again the connection button for 5 seconds to reactivate it. 8. ADDING THE DEVICES TO THE NETWORK If the network structure is not configured, it is necessary to add data loggers and any repeat- ers and alarm modules to the base unit. The adding procedure, described in detail in the chap- ter " Adding devices to the network " in the software online help, is briefly outlined hereunder: 1. Select the command " Network " of HD35AP-S software. 2. In the section " Add Devices " of the window " Network ", select the button " Execute search ". 3. At the end of the search, the software will list the devices available to be added to the network; select the devices, identified by the RF address, and enter the serial number of each device (RF address and serial number are written on the label on the rear of the in- strument). 4. Select the button " Add to network ". Note: the procedure for adding the devices to the network allows a limited number of devices to be added at a time. If the software doesn’t list all the devices to be added, complete in any case the procedure with the listed devices and repeat the procedure to add the missing devices. By repeating the procedure, the software will list only the devices that have not been added yet. Connection icon Custom LCD Graphic LCD Models without LCD Models with LCD

The maximum number of devices that can be added to a base unit depends on the data transmission interval, as indicated in the following table. TAB. 3.1: Number of devices manageable by the base unit Data transmission interval Number of devices manageable by the base unit Data transmission interval Number of devices manageable by the base unit 1 s 12 10 s 120 2 s 24 15 s 180 5 s 60 > 30 s 254 The table refers to the condition of direct transmission between base unit and data loggers (1 "Hop"). In the presence of repeaters, the data transmission requires more time, and the num- ber of devices manageable by the base unit could be lower than the one indicated. 9. CHECKING THE QUALITY OF RF COMMUNICATION The correct RF communication between base unit and the other devices connected to the net- work can be checked in the following ways: • In the main window of the HD35AP-S software, by checking that the RF signal level re- mains high, that the strength of the received signal RSSI (Received Signal Strength Indi- cation) exceeds -85 dBm and that the percentage of transmission errors PER (Packet Er- ror Rate) is close to zero. Fig. 3.7: verification of RF communication with HD35AP-S software • In data loggers with display, by checking that the strength of the received signal RSSI exceeds -85 dBm and that the percentage of transmission errors PER is close to zero. Use the button  to display RF RSSI and PER quantities. • In the devices without display, by briefly pressing the connection button (PING function) and by making sure that the green RF LED blinks for a few seconds; 10. INSTALLING THE DEVICES After a bench test of the system, proceed with the individual installation of the devices in the final work location. If data loggers using external probes with cable are installed, place the probes in the environ- ment to be monitored and connect them to the data loggers (for the connectors layout, see paragraphs Data logger models in indoor-use housing on page 26 and Data logger models in waterproof housing on page 51). 11. CHECKING WHETHER THE DEVICES ARE REACHABLE After installing the devices, you need to verify again the correct RF communication between the base unit and the other devices of the network, in order to make sure you didn’t place the devices too far from the base unit or in places that make RF transmission difficult (shielded environments or with several obstacles). To check RF communication, proceed as indicated at step 9.

12. ADDING REPEATERS TO THE NETWORK If a device is not reachable after installation (it fails communication with the base unit), it could be necessary to install one or more repeaters in intermediate points between the device and the base unit. To add a repeater to the network, connect the internal battery to the repeater and repeat the installation procedure from step  only for the repeater. 13. CONFIGURING NETWORK PARAMETERS Through the HD35AP-S software, set all the system operation parameters: logging intervals, alarm thresholds, user codes, etc. For data loggers, specify whether they are installed in a stationary location or mobile location (for ex. in an articulated vehicle). See software instructions for the setting of the various parameters. CHANGING THE RF BAND IN THE …U MODELS The …U models can operate in the 902-928 (U.S.A. and Canada), 915-928 (Australia) or 921-928 (New Zealand) MHz frequency band. To change the band in the devices with LCD, se- lect the RF Frequency item of the RF Parameters menu (models with graphic LCD) or the RF_FREQ_MHZ item of the RF_MENU menu (models with custom LCD). To change the band in the devices without LCD, proceed as follows: 1) If the device is equipped with mini-USB connector on the housing side, connect it to the PC by means of the CP23 cable. 2) Start the HD35AP-S software and select the Tools >> HID terminal command. 3) Select Setup >> Uart configuration. 4) Set the Baud Rate to 9600 for the …ED devices. Set the Baud Rate to 115200 for the …RE and …AP devices. Press Apply. 5) Select Connect. 6) Transmit the command <000>PW;nnnn with nnnn=administrator password. 7) Transmit the command <000>MC;n with n=1 for the 902-928 MHz band, n=2 for the 915- 928 MHz band and n=3 for the 921-928 MHz band. 8) Select Disconnect. Note: after the transmission of a command, check that in the reply of the device appears the confirmation symbol &.

4 NETWORK MODIFICATION One or more devices can be added or removed to/from the network at any time. ADDING A DEVICE TO AN ALREADY OPERATING NETWORK To add a device to the network, connect the internal battery to the device and repeat the in- stallation procedure from step  concerning only the device to be added. REMOVING A DEVICE FROM AN ALREADY OPERATING NETWORK To remove a device from the network, follow the procedure indicated in detail in the chapter " Removing devices from the network " of the software online help, and briefly described here- under: 1. Select the command " Network " of the HD35AP-S software. 2. In the section " Delete Devices " of the window " Network ", select the device that you wish to remove from the network. 3. Select the button " Delete Devices ". The removal procedure of a device from the network allows to select whether to turn-off the device RF circuit after disconnection or to keep it turned-on so as to allow any connection to another network. If the RF circuit is kept turned-on, it turns-off after 30 minutes if in the meantime the device is not connected to another network.

5 INSTALLING THE HOUSING FOR INDOOR USE The installation of models in indoor-use housing can be fixed, by means of anodized-aluminum flanges to be attached to the back of the housing, or removable, by means of a practical plas- tic support to be fixed to the wall. The use of flanges allows preventing the instrument to be taken away, thanks to the possibility of applying a padlock, inserted in a fastening pin to be fixed to the wall. Removable installation 1. Fix the plastic support to a wall. 2. Insert the device into the support pushing it downwards. Fig. 5.1: removable installation of the indoor-use housing Fixed installation 1. Fasten the two flanges to the back of the device housing. 2. Fix the padlock pin and the device with the flanges to the wall. 3. Attach the padlock. Fig. 5.2: fixed installation of indoor-use housing Plastic support Screws for flange fixing to housing Screws for wall fixing Pin hole

6 BASE UNIT HD35AP… 6.1 AVAILABLE VERSIONS • HD35AP: with USB output only; • HD35APS: with USB output and RS485 output with MODBUS-RTU protocol; the base unit operates as a multiplexer for the transmission of MODBUS commands from PC/PLC to network devices; • HD35APW: with USB output, Wi-Fi interface for connection to the local wireless network and ETHERNET connection for cable connection to the local network; it al- lows the use of MODBUS TCP/IP protocol; integrated Web server; • HD35APG: with USB output and integrated GSM module for e-mail or SMS alarm transmission and stored data transmission via e-mail or to an FTP address; it allows communication with a PC through the GPRS TCP/IP protocol. 6.2 DESCRIPTION 1. RF antenna for transmission in ISM band. In the HD35APG model the antenna is on the left. In the other models the antenna is in the center. 2. POWER LED: in red color, it indicates the presence of an external power supply; it blinks if the battery is recharging. 3. BATTERY LED: in green color, it indicates the internal battery charge level. When the indi- cator light is steady on, the battery is fully charged; as the battery is running low, the LED blinks with a lower and lower frequency (the blink period increases of 1 second for each 10% decrease of the battery charge). 4. Connector for external 6 Vdc power supply (SWD06). 5. Mini-USB connector for PC connection. The PC USB port powers the instrument in the ab- sence of an external power supply. 6. Connector present only in HD35APW and HD35APS models. In HD35APW models, the connector is a RJ45 type for connection to the ETHERNET network. In HD35APS models, the connector is a 8-pole M12 type for connection to the RS485 network. 7. Green RF LED: it blinks when the unit is in normal operation mode. 8. Red RF LED: it blinks to signal problems in RF transmission. 9. GSM antenna cable (only HD35APG). Place the GSM antenna at least 30 cm away from the RF antenna.

6.3 RF LEDS SIGNALS GREEN LED RED LED DESCRIPTION ON ON Initialization phase after a reset or battery connection. Short blink every 3 s OFF Normal operation mode. Short blink every 3 s Short blink every 3 s RF alarm: at least one device exceeded the set PER threshold (Packet Error Rate). Blinking 1 s ON / 1 s OFF The unit is changing RF channel. Blinking 1 s ON / 1 s OFF Blinking 1 s ON / 1 s OFF The unit is changing RF channel and signaling an RF alarm (alarm signaling is normal during an RF channel change). OFF Blinking 1 s ON / 4 s OFF Date/time not set. It is necessary to set the clock. OFF Blinking 1 s ON / 2 s OFF There is an error in the user configuration parameters. OFF Blinking 1 s ON / 1 s OFF There is an error in the factory configuration parameters or a hardware component is not working properly. OFF OFF Firmware upload or network file transfer. The RF activity is suspended until upload completion. 6.4 USB CONNECTION All base unit versions can be connected to a PC through the mini-USB connector and CP23 ca- ble. In this connection mode, the base unit is powered through the PC USB port. Fig. 6.4.1: USB connection Connection through CP23 cable doesn’t require the installation of USB drivers: when the base unit is connected to a PC, Windows® operating system automatically recognizes the unit as an HID device (Human Interface Device) and uses the drivers already included in the operating sys- tem. Note: if the external power supply is not used but only the USB connection, it is recommended to connect the unit to a minimum 500 mA USB port to allow a sufficient recharging of the in- ternal battery. 6.5 ETHERNET OR WI-FI CONNECTION The HD35APW base unit version can be connected to a PC through an Ethernet or Wi-Fi local network. The choice of the connection mode, Ethernet or Wi-Fi, and of the relevant settings must be performed with the HD35AP-S software. In the connection mode through local network, the base unit must be powered by means of an external power supply, because the internal battery has a few hours life.

For the Ethernet mode, connect the RJ45 connector of the base unit to a local network socket by means of a standard Ethernet cable. Fig. 6.5.1: ETHERNET connection In Wi-Fi mode, connect the base unit to an available Wi-Fi network using the HD35AP-S soft- ware (see software instructions). The base unit connects to the router of the local network (Wi-Fi Access Point, in Wi-Fi mode) and works as a client-type device. It is possible to set a fixed (static) IP address or configure the DHCP mode (Dynamic Host Configuration Protocol) so as the unit requests a dynamic IP address to the network server/router. Fig. 6.5.2: base unit in Wi-Fi mode operating as a client It is possible to access the base unit from any PC of the local network where the basic HD35AP-S software was installed (see the connection procedure presented in chapter " Con- nection to base unit " of the software online help). To access the data downloaded in the data- base from a PC other than that where the database was installed you need instead the ad- vanced version of the software HD35AP-PLUS. The connection to the base unit is multi-client: the unit has two TCP/IP virtual ports and ten sockets in total to be divided between the two ports. Each port can operate with TCP/IP or MODBUS TCP/IP protocol. The ports setting (port number, number of socket assigned and type of protocol) must be performed with the HD35AP-S software (see software instructions). In MODBUS TCP/IP mode, the base unit works as "Modbus TCP/IP gateway".

6.6 RS485 CONNECTION The HD35APS base unit version has a RS485 communication port with MODBUS-RTU proto- col. For connection to the port, use the CPM12-8P… series cables with 8-pole M12 connector. The figure and the table below show the numbering and the function of the connector con- tacts: Fig. 6.6.1: RS485 connection TAB. 6.6.1: CPM12-8P… cable Connector Function Color B 1 GND Black 2 Not connected 3 Not connected 4 RS485 A/- Brown 5 RS485 B/+ White 6 Not connected 7 Not connected 8 Not connected Thanks to RS485 connection, several instruments can be connected in a multi-point network. The instruments are connected in sequence by means of a shielded cable with twisted pair wires for signals and a third wire for the ground. Line terminations must be placed at the ends of the network. In order for the line to be polarized during non-transmission periods, resistors are used to connect signal lines and power supply. Polarization resistors are in one point only in the line, in the proximity of the PC or PLC. The ca- ble shield must be connected to both ends of the line. The maximum number of devices that can be connected to the line (Bus) RS485 depends on the load characteristics of the devices to be connected. The RS485 standard requires that the total load doesn’t exceed 32 (Unit Loads). The load of a base unit HD35APS is equal to 1 unit load. If the total load is higher than 32 unit loads, divide the network in segments and add a signal re- peater between a segment and the following. A line termination must be placed at both ends of each segment. The cable maximum length depends on the transmission speed and on the cable characteris- tics. Typically, the maximum length is 1200 m. The data line must be kept separated from any power lines to avoid interferences to the transmitted signal. White Brown Black CPM12-8P…cable M12 male connector of base unit PLC or RS485/USB or RS485/RS232 converter for PC Other sensors with RS485 output Termination Termination

Each instrument in the RS485 network is univocally identified by an address ranging within 1 and 247. No more than one transmitter with the same address can be present in the same network. Before connecting the base unit to the RS485 network, configure address and Baud Rate (see chapter " HD35AP… base unit configuration ” of the software online help). The communication parameters in the PC/PLC must be the same as those set in the base unit. 6.7 GSM CONNECTION In order to use the GSM functionalities of the base unit HD35APG, a SIM card enabled for data transmission must be inserted into the unit. The card should be requested to a carrier that has an adequate coverage of the GSM network in the place where the base unit will be in- stalled. To insert the card, proceed as follows. 1. Unscrew the 4 front screws on the housing and remove the back cover. 2. Disconnect the battery. 3. Press the release button of the SIM housing and, keeping the button depressed, extract the card by making it slide upward. Fig. 6.7.1: inserting the SIM card 4. Insert the SIM card into its housing so as the SIM card contacts face the outside of the housing. The housing is provided with an insertion key that prevents the possibility of in- serting the SIM card improperly. 5. Put the SIM housing back in place, making sure that the SIM card contacts face the instru- ment board. 6. Reconnect the battery. 7. Close again the housing by fixing the 4 front screws. Through the HD35AP-S software, set the necessary information for GSM operation: SIM PIN, name of the APN access point, e-mail account and addresses, FTP address, telephone num- bers, data transmission mode, etc. (see chapter " GSM Options" of the software online help). 6.7.1 SENDING COMMANDS TO THE BASE UNIT FROM A MOBILE PHONE SMS messages containing commands can be sent by a mobile phone to the HD35APG base unit, to change some GSM settings of the unit. This feature is useful in case a connection to a PC with the base unit is not available. The SMS must be sent to the number of the SIM card inserted into the base unit. The following table lists the available commands: SIM release button Card housing SIM card Set down

TAB. 6.7.1: SMS commands Command Description RESET Reset of the base unit EMAIL-ON Activates periodic download of measurement data via e-mail EMAIL-OFF Deactivates periodic download of measurement data via e-mail EMAIL-PERIOD= period index Set the transmission interval via e-mail, where period index: 0->15 min, 1->30 min, 2->1 hour, 3->2 hours, 4->4 hours, 5->8 hours, 6->12 hours, 7->24 hours, 8->2 days, 9->4 days, 10->1 week EMAIL-FORMAT= format index Set the format of the data sent via e-mail, where format index: 1->log (format for database), 2->csv (format for Excel®), 3->log+csv EMAIL-DL-START Activates immediate data download by e-mail starting from the last measurement transmitted EMAIL-DL-FROM=YYYY/MM/DD HH:MM:SS Downloads data by e-mail starting from the specified date, where YYYY: year, MM: month, DD: day, HH: hour, MM: minutes, SS: seconds EMAIL-DL-INTERVAL=YYYY/MM/DD HH:MM:SS - YYYY/MM/DD HH:MM:SS Downloads by e-mail all data between the specified dates, where YYYY: year, MM: month, DD: day, HH: hour, MM: minutes, SS: seconds EMAIL-ALARM-REPORT Transmits by e-mail a report containing the current measurements of the selected devices for SMS/e-mail alarms EMAIL-REPORT Transmits by e-mail a report containing the current measurements of all the network devices EMAIL-HELP Transmits an e-mail containing a list of all SMS commands FTP-ON Activates the periodic download of measurement data via FTP FTP-OFF Deactivates the periodic download of measurement data via FTP FTP-PERIOD= period index Set the transmission interval via FTP, where period index: 0->15 min, 1->30 min, 2->1 hour, 3->2 hours, 4->4 hours, 5->8 hours, 6->12 hours, 7->24 hours, 8->2 days, 9->4 days, 10->1 week FTP-FORMAT= format index Set the format of the data sent via FTP, where format index: 1->log (format for database), 2->csv (format for Excel®), 3->log+csv FTP-DL-START Activates immediate data download by FTP starting from the last measurement transmitted FTP-DL-FROM=YYYY/MM/DD HH:MM:SS Downloads data via FTP starting from the specified date, where YYYY: year, MM: month, DD: day, HH: hour, MM: minutes, SS: seconds FTP-DL-INTERVAL=YYYY/MM/DD HH:MM:SS - YYYY/MM/DD HH:MM:SS Downloads by FTP all data between the specified dates, where YYYY: year, MM: month, DD: day, HH: hour, MM: minutes, SS: seconds FTP-ALARM-REPORT Transmits by FTP a report containing the current measurements of the selected devices for SMS/e-mail alarms FTP-REPORT Transmits by FTP a report containing the current measurements of all the network devices FTP-HELP Transmits by FTP a file containing a list of all SMS commands SMS-ALARM-ON Activates the transmission of alarm SMS for the overrun of the measurement thresholds for the selected devices SMS-ALARM-OFF Deactivates the transmission of alarm SMS for the overrun of the measurement thresholds for the selected devices SMS-RF-ALARM-ON Activates the transmission of alarm SMS for RF problems in the selected devices SMS-RF-ALARM-OFF Deactivates the transmission of alarm SMS for RF problems EMAIL-ALARM-ON Activates the transmission of e-mail alarms when the selected devices have measurements in alarm EMAIL-ALARM-OFF Deactivates the transmission of e-mail alarms for measurement alarms EMAIL-RF-ALARM-ON Activates the transmission of e-mail alarms when the selected devices have RF problems EMAIL-RF-ALARM-OFF Deactivates the transmission of e-mail alarms for RF problems

Command Description SMS-ALARM-REPORT Transmits by SMS the list of the devices in alarm condition. Only the selected devices are taken into consideration for SMS alarms SMS-DEVICE-ALARM-REPORT=RF address Transmits via SMS a report of the measurements selected for SMS alarms, of the device with specified RF address SMS-DEVICE-REPORT= RF address Transmits via SMS a report of the measurements of the device with specified RF address SMS-HELP Transmits an SMS containing the list of all SMS commands TCP-SERVER-ON Activates a TCP connection with AP acting as a TCP server TCP-SERVER-OFF Deactivates the TCP connection with AP acting as a TCP server TCP-CLIENT-ON Activates a TCP connection with AP acting as a TCP client TCP-CLIENT-OFF Deactivate the TCP connection with AP acting as a TCP client TCP-SERVER=server address Specifies the server address for TCP connection when AP acts as TCP client. The server-address string can be a domain or a IP address TCP-SERVER-PORT=port number Specifies the number of the TCP port used by the remote server to accept connections with AP when AP acts as TCP client TCP-LISTEN-PORT=port number Specifies the number of the TCP listening port used by AP when AP acts as TCP server ADD-PHONE=phone number Adds a phone number to the list of numbers considered for SMS alarms CANC-PHONE Delete my phone number and don’t consider it any more for SMS alarms. The primary phone number cannot be deleted ERASE-PHONE=phone number index Deletes the phone number with specified index. This command is accepted only by the primary phone number Up to 16 commands can be written in the same text message, separated by spaces or commas. For safety, commands are executed only if they are coming from the cell numbers set in the HD35AP-S software and if the SMS text starts with a user-defined key word. The key word is set through the HD35AP-S software, going to the menu " GSM options " at the item " SMS re- cipients " and setting the field " SMS keyword " (see chapter " GSM settings " of the software online help). Example: supposing you entered the string W72A in the SMS keyword field and you wish to activate periodic download via e-mail of the measured data with an interval of 1 hour, you will have to send the following text message: W72A EMAIL-ON EMAIL-PERIOD=2 With the commands EMAIL-HELP, FTP-HELP and SMS-HELP you can ask the base unit to send respectively by e-mail, to an FTP address and through SMS the complete list of the available SMS commands. This function is useful especially if you don’t have the manual at hand, or to obtain the updated command list following the base unit firmware updates. 6.7.2 GPRS TCP/IP CONNECTION Through GPRS TCP/IP protocol, it is possible to interact with the HD35APG base unit from a remote PC with an Internet connection. To activate this type of connection you have to send the SMS commands TCP-CLIENT-ON or TCP-SERVER-ON to the base unit.

6.8 TECHNICAL FEATURES OF THE BASE UNIT Power supply Internal lithium-ion 3.7 V rechargeable battery, 2250 mA/h capacity, JST 3-pole connector Optional external 6 Vdc power supply (SWD06) Directly powered by a PC USB port Current consumption 30 mA Transmission frequency 868 MHz, 902-928 MHz or 915.9-929.7 MHz according to the model Antenna External whip antenna Transmission range 300 m in open field The range can be reduced in the presence of obstacles or adverse atmospheric conditions Serial outputs USB with Mini-USB connector (CP23 cable) RS485 with MODBUS-RTU protocol (HD35APS only) Ethernet connection HD35APW model only. Allows MODBUS TCP/IP protocol. With integrated Web server. Wi-Fi connection HD35APW model only. Allows MODBUS TCP/IP protocol. With integrated Web server. GSM connection HD35APG model only. For the transmission of alarm SMS and data by e-mail or FTP. Allows GPRS TCP/IP protocol. Internal memory The number of storable samples depends on the type of data loggers con- nected. The capacity is of 226.700 samples if all data loggers record 7 quantities. LED indicators Presence of external power supply, battery charge level, RF communica- tion status. Battery life Typically 3 days (8 hours for HD35APW connected to local network) Operating temperature and humidity -10…+60 °C / 0…85 %RH non condensing Dimensions See dimensional drawings Weight About 200 g. (battery included) Housing ABS Protection degree IP 64 Installation Wall support (supplied) for removable installation or flanges (option) for fixed installation

7 HD35RE REPEATER 7.1 DESCRIPTION 1. RF Antenna. 2. POWER LED: red color, it indicates the presence of the external power supply; it blinks if the battery is charging. 3. BATTERY LED: green color, it indicates the internal battery charge level. When the indicator light is steady on, the battery is fully charged; as the battery is running low, the LED blinks with a lower and lower frequency (the blink period increases of 1 second for each 10% de- crease of the battery charge). 4. Connector for external 6 Vdc power supply (SWD06). 5. Mini-USB connector for PC connection. Use reserved for technical assistance. 6. Connection button. 7. Green RF LED: it blinks if the data transmission was successful. 8. Red RF LED: it blinks to signal that data transmission has failed. The green and red RF LEDs blink simultaneously if the device is in error condition. Power supply: since the repeater is normally not always connected to a computer, it is advis- able to use an external power supply, since the internal battery life is of a few days. 7.2 CONNECTION TO THE WIRELESS NETWORK The device can be connected and disconnected to/from the wireless network by pressing for 5 seconds the connection button on the front panel (see step 6 of paragraph 7.1). If the device is disconnected, by pressing the connection button for 5 seconds the buzzer emits a beep and the green LED activates for one second to indicate the start of the connection pro- cedure. If the device belongs to a wireless network and the base unit is reachable, once con- nected, the buzzer emits a second beep and the green RF LED will blink during data transmis- sion. If the device doesn’t belong to a wireless network or the base unit cannot be reached, the second beep of the buzzer is not emitted and the red RF LED will blink. If the device is connected, by pressing the connection button for 5 seconds the buzzer emits a beep, the red RF LED activates for one second and the device is disconnected.

PING function: In the devices connected to a wireless network it is possible to check if the base unit can be reached by briefly pressing the connection button: if the green RF LED is blinking, it means that the base unit is reachable, otherwise it will be the red RF LED to blink. 7.3 TECHNICAL FEATURES OF THE REPEATER Power supply Internal lithium-ion 3.7 V rechargeable battery, 2250 mA/h capacity, JST 3-pole connector Optional external 6 Vdc power supply (SWD06) Directly powered by a PC USB port Current consumption 30 mA Transmission frequency 868 MHz, 902-928 MHz or 915.9-929.7 MHz according to the model Antenna External whip antenna Transmission range 300 m in open field The range can be reduced in the presence of obstacles or adverse atmospheric conditions Serial outputs USB with Mini-USB connector (CP23 cable) For configuration only, not for data download LED indicators Presence of external power supply, battery charge level, RF communica- tion status. Keyboard Connection button Battery life Typically 3 days Operating temperature and humidity -10…+60 °C / 0…85 %RH non condensing Dimensions See dimensional drawing Weight About 200 g (battery included) Housing ABS Protection degree IP 64 Installation Wall support (supplied) for removable installation or flanges (option) for fixed installation

8 HD35ED… DATA LOGGERS FOR INDOOR USE 8.1 DESCRIPTION Models without LCD display Models with LCD display 1. ALARM LED: red color; it blinks when a measurement is in alarm condition. 2. BATTERY LED: green color, it indicates the internal battery charge level. As the battery is running low, the LED blinks with a lower frequency (the blinking period increases of 1 sec- ond for each 10% decrease of the battery charge). 3. Red RF LED: it blinks to signal that data transmission has failed. 4. Green RF LED: it blinks when the data transmission has been successful. 5. Probes and/or integrated sensors. The aspect of the lower part of the data logger depends on the model (see the following page). 6. Connection button. 7. Internal RF antenna. 8. MENU/ENTER key: allows access to the configuration menu; confirm the selected option or the set value in the menu. 9.  key: in normal operation, it scrolls the quantities measured by the data logger; it scrolls upwards the available options or decreases the set value in the menu. 10. FUNC/key: in normal operation, it displays the maximum (MAX), the minimum (MIN) and the average (AVG) of the measurements; it scrolls downwards the available options or decreases the set value in the menu. 11. LCD Display. The type of display, custom or graphic, depends on the model. The green and red RF LEDs blink simultaneously if the device is in error condition. Note: some models of data loggers may be equipped with mini-USB connector, on the housing side, whose use is reserved to the technical assistance.

M12 connector for combined RH/T probe or temperature probe M12 connector for combined RH/T probe or temperature probe M12 connector for temperature probe M12 connectors for temperature probes Fixed vertical RH/T probe Input terminals protected by a cover (see par.8.5 for terminals scheme) Integrated sensors protected by a grid Fixed vertical RH/T probe Differential pressure inputs Differential pressure inputs Illuminance or UVA integrated sensor Fixed vertical RH/T probe M12 connector for illuminance or UVA probe Power supply connector

Data logger models in indoor-use housing In order to highlight the physical quantities measured by data loggers, order codes include some identification characters for the various quantities, according to the following convention: 1 = Humidity 4b = Atmospheric pressure (barometer) 4 = Differential pressure (4r1 = range 1, 4r2 = range 2, etc.) N = Temperature with NTC10K sensor (N/2 = two channels, N/3 = three channels) 7P = Temperature with Pt100/Pt1000 sensor (7P/3 = three channels) A = Carbon monoxide (CO) B = Carbon dioxide (CO2) I = Illuminance (lux) U = UVA irradiance TC = Probe with cable TV = Fixed vertical temperature and/or R.H. probe without cable, with high accuracy R.H. sensor TVI = Fixed vertical temperature and R.H. probe without cable TCV = Illuminance/irradiance probe with cable and fixed vertical temperature and R.H. probe without cable, with high accuracy R.H. sensor. Models measuring temperature and humidity with a combined probe with cable (…TC models) use the probes of the HP3517… series with high accuracy humidity sensor and NTC 10KΩ @ 25 °C or Pt100 temperature sensor according to the model. Replacement of the HP3517… probe requires recalibration of the instrument in line with the new probe. Models with M12 connectors provided with inputs for the measurement of temperature only, use temperature probes of the TP35… series with NTC 10KΩ @ 25 °C or Pt100/Pt1000 sensor. In models with 2 or 3 M12 connectors, the input number is indicated above the connector. In models for the measurement of the atmospheric pressure, the sensor is inside the instru- ment. In models for the measurement of the differential pressure, please pay attention to the polarity indicated next to connections. TAB. 8.1.1: differential pressure measuring ranges Model Measuring range HD35ED...4r1… -2.5…+2.5 hPa (mbar) HD35ED...4r2… -10…+10 hPa (mbar) HD35ED...4r3… -100…+100 hPa (mbar) HD35ED...4r4… -2000…+2000 hPa (= 2 bar) For the probes connection mode and the position of the integrated sensors in the various mod- els, refer to the figures indicated in the last column of the following table.

TAB. 8.1.2: data logger models in indoor-use housing MEASUREMENTS OPTIONAL LCD INPUTS L G Model NTC 10K Pt100 Pt1000 RH Patm ΔP Lux UVA CO CO2 Custom Graphic Conn. M12 Built-in sensors Fig. HD35ED 7P/1 TC • • 1 A HD35ED 7P/2 TC • • 2 B HD35ED 7P/3 TC • • 3 C HD35ED N/1 TC • • 1 A HD35ED N/2 TC • • 2 B HD35ED N/3 TC • • 3 C HD35ED N TV • • • D HD35ED 1 TV • • • D HD35ED 1 TVI • • • D HD35ED 1N TC • • • 1 A HD35ED 1N/2 TC • • • 2 B HD35ED 17P TC • • • 1 A HD35ED 1N TV • • • • D HD35ED 1N TVI Sensor integrated in RH module • • • D HD35ED 14bN TC • • • • 1 Patm A HD35ED 14bN TV • • • • • D HD35ED 14bN TVI Sensor integrated in RH module • • • • D HD35ED 4r… (*) • • • H HD35ED 1N4r…TV (*) • • • • • G HD35ED 1NI TCV • • • • 1 T / RH I HD35ED 1NI TV • • • • • D, L HD35ED 1NIU TCV • • • • • 1 T / RH I HD35ED 1NIU TV • • • • • • D, L HD35ED 14bNI TCV • • • • • 1 T / RH Patm I HD35ED 14bNI TV • • • • • • D, L HD35ED 14bNIU TCV • • • • • • 1 T / RH Patm I HD35ED 14bNIU TV • • • • • • • D, L HD35ED 1NB • • • • F HD35ED 1NAB • • • • • F HD35ED 14bNAB Sensor integrated in RH module • • • • • • F HD35ED H Transmitters with 0÷20 mA, 4÷20 mA, 0÷1 V or 0÷50 mV output Pt100 / Pt1000 Sensors, K, J, T, N, E thermocouples Sensors with voltage-free contact or potentiometric output • 3 terminal inputs E (*) Please refer to table 8.1.1 for the available ranges.

8.2 CONNECTION TO WIRELESS NETWORK The device can be connected and disconnected from the wireless network by pressing for 5 seconds the connection button on the front panel (see step 6 of paragraph 8.1). If the device is disconnected, by pressing the connection button for 5 seconds the buzzer emits a beep and the green RF LED blinks for one second to indicate the start of the connection pro- cedure. If the device belongs to a wireless network and the base unit is reachable, once con- nected, the buzzer emits a second beep and the green RF LED will blink during data transmis- sion. If the device doesn’t belong to a wireless network or the base unit cannot be reached, the second beep of the buzzer is not emitted and the red RF LED will blink. If the device is connected, by pressing the connection button for 5 seconds the buzzer emits a beep, the red RF LED activates for one second and the device is disconnected. In data loggers with LCD display, the connection status is signaled also by the connection icon on the display (see figure 3.6 at page 9): • the icon is steady on if the data logger is connected; • the icon blinks if the data logger is trying to connect (the icon will be steady on once connected or will go on blinking if the base unit is not reachable o the data logger doesn’t belong to a wireless network); • if the data logger is not connected, the icon has the aspect of a hang up phone in data loggers with graphic LCD, and it is off in data loggers wit custom LCD. PING function: In the devices connected to a wireless network it is possible to check if the base unit can be reached by briefly pressing the connection button: if the green RF LED is blinking, it means that the base unit is reachable, otherwise it will be the red RF LED to blink. 8.3 DATA LOGGERS WITH LCD OPTION According to the data logger model, the LCD display is custom (L option) or graphic (G option) type. The display shows all quantities measured and calculated by the data logger along with the following RF quantities: • RSSI (Received Signal Strength Indication): received signal power; • PER (Packet Error Rate): percentage of transmission errors; • RF Hops: 1=direct transmission between data logger and base unit, 2= a repeater added between data logger and base unit, 3=two repeaters added, etc. The indications of connection status, logging (in progress/deactivated), and battery charge level are displayed. Fig. 8.3.1: custom LCD In models with custom LCD that measure several quantities, the temperature is displayed in the secondary line, except when a RF quantity appears in the main line; in that case the sec- ondary line shows the number of RF hops. Models with graphic LCD allow the simultaneous display of 3 measurements in the secondary lines. The graphic display shows in addition the RF signal level and date & time. Battery level Main line Logging status Connection status Secondary line RF interference indicator Measurement unit

Fig. 8.3.2: graphic LCD Use the  key to scroll the measured or calculated quantities on the display. Fig. 8.3.3: selecting the quantities to be displayed Below please find the indications corresponding to the various quantities in the two types of LCD. TAB. 8.3.1: indication of quantities on display Graphic LCD Quantity Custom LCD Main line Secondary line Temperature (*) °C or °F stable Temperature Temp Relative humidity % RH Relative humidity RH Dew point Td alternated to °C or °F Dew point Dew point Partial vapour pressure PVP alternated to m.u. (**) Partial vapor pressure PVP Mixing ratio G/kG Mixing ratio Mix ratio Absolute humidity G/m3 Absolute humidity Abs hum. Wet bulb temperature Tw alternated to °C or °F Wet point Wet point Atmospheric pressure PRES alternated to m.u. (**) Atmospheric pressure Atm. Pres Differential pressure PRES alternated to m.u. (**) -- -- Carbon monoxide -- Carbon monoxide CO Carbon dioxide -- Carbon dioxide CO2 Illuminance LUX -- -- UVA irradiance mW/m2 -- -- Proportion of UV present µW/lm -- -- RF signal power RSSI alternated to dBm Received signal strength RSSI Percentage of RF errors PER % Packet error rate PER RF hops HOP Number RF hops RF Hops (*) In models with more than one temperature channels, the display shows also the number of channel the shown value refers to. (**) m.u. = unit of measurement Different measurement units can be set for certain quantities. The setting can be done through the HD35AP-S software (see the software instructions) or by accessing the configuration menu with the front keyboard (see paragraph The menu in LCD data loggers on page 30). Battery level Logging status Date Secondary lines Connection status RF signal level Time Main line

8.3.1 Maximum, minimum and average of the measurements To display the maximum value (MAX), the minimum value (MIN) and the average (AVG) of the acquired values, press the FUNC key until the desired function is shown on the display. Custom LCD Graphic LCD Fig. 8.3.1: selecting a function To reinitialize the function value and start a new measuring session, press the FUNC key until you read FUNC CLR (custom LCD) or Function clear (graphic LCD), use the arrow keys to select yes and confirm with ENTER. 8.4 THE MENU IN LCD DATA LOGGERS The menu allows displaying the data logger information and changing operation parameters. The menu is structured in levels, with main categories and submenus. To access the menu you need to enter the user or administrator password. Entering the user password makes some settings not changeable. The instrument exits automatically the menu if no key is pressed for 3 minutes. After exiting the menu, the password remains active for a few minutes, during which you may enter the menu again without re-entering the password. It is possible to exit the menu by disabling im- mediately the password by performing a password level reset in the Password menu. 8.4.1 The menu in data loggers with graphic LCD To access a menu parameter proceed as follows: 1. Press MENU. 2. Press  to select the password field. PASSWORD Insert password to access MENU Ž Ž Ž Ž . OK.. CANCEL select confirm 3. Press ENTER, the first digit of the password will blink. 4. Use / keys to set the first digit and confirm with ENTER, the second digit of the pass- word will blink. Set all the password digits in the same way. 5. Press  to select the option OK and confirm with ENTER. 6. Use / keys to select a main category of the menu and confirm with ENTER. 7. If the selected main category has a submenu, select the desired item using / and con- firm with ENTER. Function Indicator

To exit the main menu or a submenu, select the item EXIT (last menu item). Changing a parameter After selecting the desired parameter, it can be changed, if allowed, in the following way: 1. Use / keys to highlight the current setting of the parameter. TEMPERATURE Choose the measuring unit used on display °C . OK.. CANCEL select confirm 2. Press ENTER, the field will start blinking. 3. Use / keys to select the desired setting and confirm with ENTER. If you are setting a numeric value, you can move faster by keeping  or  keys depressed. 4. Press  to select the option OK and confirm with ENTER. The instrument closes the parameter window and returns to the previous menu level. To exit a parameter window without changes, select CANCEL and confirm with ENTER. If only the option CANCEL is available in the parameter window, it means that it is not al- lowed to change the parameter setting. Menu structure The complete structure of the main window with the relevant submenus is shown below. Ac- cording to the data logger model, some items could not be available if not significant for that particular model. 1) Information It lists the general information of the instrument: model, serial number, RF address, user code, firmware version, calibration date, etc. 2) Display configuration 1) Measures ordering: changes the order for the display of the measurement quan- tities on the screen. To move a quantity, select it in the displayed list, press ENTER, move the quantity to the desired position and confirm with ENTER. 2) Reset measures order: choice of the default or user-defined viewing sequence. 3) Exit: returns to main menu. 3) RF Parameters 1) Network Address: network address (not RF) of the data logger. It is used to ad- dress the data logger in a Modbus network. Read-only parameter if the instrument is connected to a base unit. 2) RF Channel: used channel of the RF transmission band. Read-only parameter if the instrument is connected to a base unit. 3) RF Frequency: used RF transmission band. Only in the …U models, by entering the menu with administrator password it is possible to choose the initial frequency of the RF band among 902, 915 and 921 MHz (the final frequency is always 928 MHz). 4) Max number RF Hops: maximum number of RF hops from the data logger to the base unit (equal to the number of interposed repeaters plus 1). Read-only parame- ter if the instrument is connected to the base unit. 5) RF offline: enables or disables the RF stage of the data logger. Activation or deac- tivation of the RF stage can be performed also through the connection button.

6) Exit: returns to the main menu. 4) Ch x settings (x=1, 2, 3) – Only available in the models with configurable inputs 1) Ch x info: lists all the general information of the input channel Ch x of the instru- ment: name of measurement, probe type, resolution. The correspondence between the input signal value and the physical quantity value is also indicated for mA, mV, V, Potentiometer and Counter inputs associated with a physical quantity. 2) Ch x configuration: sets the type of input among the available inputs (see para- graph 8.5.1 on page 37 for setting modes). The input type can be set only with the administrator password. 3) Ch x zero setting: sets the current measurement value as zero value. Only avail- able for mA, mV, V and Potentiometer inputs associated with a physical quantity. 4) Ch x down threshold: lower alarm threshold of channel x. 5) Ch x up threshold: higher alarm threshold of channel x. 6) Ch x reset counter: zeroes the number of counts. The item is available only if the channel is configured as counter. 7) Exit: returns to the main menu. 5) Alarm thresholds or Alarm configuration 1) Quantity 1 down threshold: lower alarm threshold of quantity 1. The type of quantity depends on the data logger model. 2) Quantity 1 up threshold: higher alarm threshold of quantity 1. The type of quan- tity depends on the data logger model. 3) … 4) Quantity n down threshold: lower alarm threshold of quantity n. The type of quantity depends on the data logger model. 5) Quantity n up threshold: higher alarm threshold of quantity n. The type of quan- tity depends on the data logger model. 6) Thres. buzzer alarm: activates or deactivates the buzzer when measurement thresholds are exceeded. 7) Exit: returns to the main menu. Note: in the models with configurable inputs, the items down threshold and up threshold of quantities are not available in this submenu, but are included in the menus for the set- ting of channels Ch 1, Ch 2 and Ch 3. 6) Unit measures 1) Quantity 1: measurement unit of quantity 1. The type of quantity depends on the data logger model. 2) … 3) Quantity n: measurement unit of quantity n. The type of quantity depends on the data logger model. 4) Exit: returns to the main menu. Note: in the HD35EDH model, only the temperature measurement unit is available. Meas- urement units for the other quantities are configurable in the menus for the setting of channels Ch 1, Ch 2 e Ch 3. Note: the unit of measurement is changed only on the LCD; the data are always sent in the unit of measurement set in the base unit. 7) Logging 1) Start/stop log: enables or disables logging. 2) Logging mode: choice between cyclical management (the new data overwrite the old ones when the memory is full) or non-cyclical management (logging stops when the memory is full) of the data logger memory.

3) Log/RF Tx interval: choice of logging and RF transmission interval (the two inter- vals coincide). If it is higher than the measuring interval, the average of the meas- urements acquired during the interval will be stored. 4) Measure interval: choice of the measurements acquisition interval. It is forced to the value RF log/Tx interval if a higher value is set. 5) Log erase: deletes all stored measurements from the data logger memory. 6) Exit: returns to the main menu. 8) Clock 1) Clock Configuration: date/time of data logger. Read-only parameter if the in- strument is connected to a base unit. 2) Exit: returns to the main menu. 9) Password 1) Reset password level: exits menu disabling immediately the password (the pass- word will not remain active for some minutes like it usually happens when exiting a menu: you will have to re-enter the password even if you access the menu at once). 2) User password config.: sets the user level password. 3) Exit: returns to the main menu. 10) CO2 auto calibration – Only available in models with integrated CO2 sensor 1) Start/stop auto-calib.: enables or disables CO2 auto-calibration. 2) Auto-calib. period: time interval between two consecutive auto-calibrations. 3) Auto-cal. 1st period: time interval after which the first auto-calibration will be performed after activation. 4) Background CO2 value: CO2 reference value for auto-calibration. 5) Auto-cal. max change: maximum offset that can be applied to the measurement by the auto-calibration procedure. 6) Exit: returns to the main menu. 11) Calibration – Only available with administrator password 1) CO 0 ppm calibration 2) CO sensitivity calib.: sets the sensitivity of the CO sensor, when the sensor is re- placed. 3) CO2 calibration 4) Calibration Type: choice between user calibration and factory calibration. 5) Exit: returns to the main menu. Note: relative humidity calibration is only available in models with high-accuracy R.H. sen- sor: HD35ED…TC and HD35ED…TV models. This sensor is not used in models with graphic display; consequently the R.H. calibration is not displayed in the menu. 12) Language 1) Language config.: choice of the language to be used for the display. 2) Exit: returns to the main menu. 13) Exit Returns to the measurement mode.

8.4.2 The menu in data loggers with custom LCD To access a menu parameter proceed as follows: 1. Press MENU, the first digit of the password will blink. 2. Using / keys, set the first digit and confirm with ENTER, the second digit of the pass- word will blink. Set all the password digits in the same way. 3. Using / keys, select a main category in the menu and confirm with ENTER. Menu items appear one at a time in the upper part of the display; the lower part of the display shows the position of the item in the menu and the total number of items in the menu (for ex. "8 – 10" means the eighth item in a menu of 10 items). PSW LOG 8 – 10 „ 4. If the selected main category has a submenu, select the desired item using / keys and confirm with ENTER. Scrolling the submenus displays also the parameter current setting. 5. To change the selected parameter, if allowed, use / keys to select the desired setting and confirm with ENTER. If you are setting a numeric value, you can fast forward by keeping  or  keys depressed. To exit the main menu or a sub menu, select EXIT item (last menu item). If it is not allowed to change a parameter, the notice N/A (Not Available) will appear when pressing ENTER to select it. Menu structure The complete structure of the main menu with the relevant submenus is shown below. Accord- ing to the data logger model, some items could be not available if not significant for that par- ticular model. 1) DEV_INFO (information) It lists the general information of the instrument: model, serial number, RF address, user code, firmware version, calibration date, etc. Information is shown in the upper part of the display. 2) DISP_MENU (display configuration) 1) DISP_LOOP_FOR_MEAS: enables or disables the cyclical display of the measured quantities. Select YES to activate the cyclical display. The derived humidity quanti- ties are not cyclically displayed. The menu item is available only if the data logger measures two or more quantities, in addition to temperature. 2) EXIT: returns to the main menu. 3) RF_MENU (RF parameters) 1) NET_ADDR: network address (not RF) of the data logger. It is used to address the data logger in a Modbus network. Read-only parameter if the instrument is con- nected to a base unit. 2) RF_CHAN: used channel of RF transmission band. Read-only parameter if the in- strument is connected to a base unit. 3) RF_FREQ_MHZ: used RF transmission band. Only in the …U models, by entering the menu with administrator password it is possible to choose the initial frequency of the RF band among 902, 915 and 921 MHz (the final frequency is always 928 MHz). 4) MAX_NUM_RF_HOPS: RF hops maximum number from data logger to base unit Menu item Item index

(equal to the number of interposed repeaters plus 1). Read-only parameter if the instrument is connected to a base unit. 5) RF_OFF_LINE: enables or disables the RF stage of the data logger. Select NO to activate the RF stage. Activation or deactivation of the RF stage can be done also through the connection button. 6) EXIT: returns to the main menu. 4) THLD_MENU (alarm thresholds) 1) Quantity 1_DOWN_THLD: lower alarm threshold of quantity 1. The type of quan- tity depends on the data logger model. 2) Quantity 1_UP_THLD: higher alarm threshold of quantity 1. The type of quantity depends on the data logger model. 3) … 4) Quantity n_DOWN_THLD: lower alarm threshold of quantity n. The type of quan- tity depends on the data logger model. 5) Quantity n_UP_THLD: higher alarm threshold of quantity n. The type of quantity depends on the data logger model. 6) THLD_ALRM: enables or disables the buzzer when measurement thresholds are exceeded. 7) EXIT: returns to the main menu. 5) MEAS_UNIT_MENU (measurement unit) 1) Quantity 1_UNIT_MEAS: measurement unit of quantity 1. The type of quantity depends on the data logger model. 2) … 3) Quantity n_UNIT_MEAS: measurement unit of quantity n. The type of quantity depends on the data logger model. 4) EXIT: returns to the main menu. Note: the unit of measurement is changed only on the LCD; the data are always sent in the unit of measurement set in the base unit. 6) LOG_MENU (logging) 1) LOG_STAT: enables or disables the logging. 2) LOG_CYCL: choice between cyclical management (the new data overwrite the old ones when the memory is full) or non-cyclical management (logging stops when the memory is full) of the data logger memory. Select YES for the cyclical management. 3) LOG/RF_TIME: choice of logging and RF transmission interval (the two intervals coincide). If it is higher than the measuring interval, the average of the measure- ments acquired during the interval will be stored. 4) MEAS_TIME: choice of the measurements acquisition interval. It is forced to the value Log/RF_TIME if a higher value is set. 5) LOG_DEL: deletes all stored measurements from the data logger memory. Select YES to delete the memory. 6) EXIT: returns to the main menu. 7) CLK_MENU (clock) 1) YEAR: year. Read-only parameter if the instrument is connected to a base unit. 2) MON: month. Read-only parameter if the instrument is connected to a base unit. 3) DAY: day. Read-only parameter if the instrument is connected to a base unit. 4) HOUR: hour. Read-only parameter if the instrument is connected to a base unit. 5) MIN: minutes. Read-only parameter if the instrument is connected to a base unit. 6) EXIT: returns to the main menu.

8) PSW_MENU (password) 1) RST_PSW_LVL: exits the menu and deactivates immediately the password (the password will not remain active for some minutes as it normally happens when ex- iting the menu: you will need to re-enter the password even if you re-access imme- diately the menu). 2) SET_NEW_PSW: sets user-level password. 3) EXIT: returns to the main menu. 9) CAL_MENU (calibration) – Only available with administrator password 1) RH_75%_CAL: relative humidity sensor calibration at 75%RH. 2) RH_33%_CAL: relative humidity sensor calibration at 33%RH. 3) DIFF_PRES_0 Pa_CAL: calibration of differential pressure to zero. 4) LGHT_SENS_PA_LUX: illuminance sensor sensitivity in pA/lux. 5) UVA_SENS_nA_W/m2: UVA irradiance sensor sensitivity in nA/Wm-2. 6) CAL_TYPE: choice between user calibration (USER) or factory calibration (FACT). 7) EXIT: returns to the main menu. Notes: - relative humidity calibration is available only with high accuracy R.H. sensor models: HD35ED…TC and HD35ED…TV models. - differential pressure zero calibration is available only in HD35ED…4r…TV models. - the illuminance sensor sensitivity is available only in HD35ED…I…TCV models. - the UVA irradiance sensor sensitivity is available only in HD35ED…IU…TCV models. 10) EXIT Returns to measurement mode.

8.5 CONNECTING THE MODEL WITH TERMINAL HEADER INPUTS HD35ED[G]H model has three terminal header inputs. Each input can be configured as a Pt100/Pt1000, thermocouple, 0/4…20 mA (shunt resistance inside), 0…1 V, 0…50 mV or potenti- ometric input. Only input 3 can be also configured as pulse counter (count of voltage-free con- tact switchings). Fig. 8.5.1: sensor connection in HD35EDH model If a channel is configured as current input, insert the 50 Ω shunt resistance closing the jumper placed on the terminals of the relevant channel. In all the other configurations, leave the jumper open. Fig. 8.5.2: shunt resistance for current input The current input accepts any value in the range 0 to 20 mA. 8.5.1 INPUTS CONFIGURATION Configuration of inputs can be implemented through the HD35AP-S software (see software in- structions) or, if the data logger is equipped with a display, through the front keyboard. To configure the input channel ch x (x=1,2,3 is the number of the input) through the keyboard, access the menu and select the item Ch x settings ⇒ ch x configuration. Set the type of input among those available: o Pt100 2-wire, Pt100 3-wire, Pt100 4-wire, Pt1000 2-wire, Pt1000 3-wire, Pt1000 4-wire, o TC-K, TC-J, TC-T, TC-N, TC-E, o 0-1V, 0-50mV, 4-20mA, Potentiometer, Counter, Frequency, o 0-1V Mapped, 0-50mV Mapped, 4-20mA Mapped, Mapped Potent., Mapped Count., Mapped Freq. Input 1 Input 3 Input 2 Pt100 Pt1000 2 wires 0-20 mA 4-20 mA ON/OFF contact Pt100 Pt1000 3 wires Pt100 Pt1000 4 wires Thermocouple K,J,T,N,E 0-1 V Potenziometer Jumper Shunt resistance 0-50 mV

The input types 4-20mA and 4-20mA Mapped also work with 0-20 mA signals. The input types Counter and Frequency are only in channel Ch 3. Set NO MEASURE if the channel is not used. The indication Mapped means that a linear correspondence between input values (in mA, mV, V, Ω or counts) and the values of a physical quantity will be associated to the channel. For ex- ample, if 4-20mA is selected, the data logger stores the input value in mA; if 4-20mA Mapped is selected, the data logger doesn’t store the input value in mA but the corresponding value of the physical quantity associated to the input. By selecting a Mapped-type configuration, the guided procedure for the association between the input values (in mA, mV, V, Ω or counts) and the values of the corresponding physical quantity is started. The procedure is illustrated below: 1. After confirming the selection of a Mapped input, the procedure start message is dis- played, press ENTER to continue. 2. Select the measurement unit of the physical quantity among those proposed by the in- strument. If the desired measurement unit is not in the list, select NOT DEF (not defined). Select the option OK and confirm with ENTER to continue. 3. Select the measurement resolution of the physical quantity among those proposed by the instrument. Select the option OK and confirm with ENTER to continue. 4. A message will be displayed reminding that the two coordinates of the linear relation be- tween input and physical quantity will be now required: x1=input value (in mA, mV, V, Ω or counts) in the first point, y1=value of the physical quantity corresponding to the input value x1, x2=input value (in mA, mV, V, Ω or counts) in the second point, y2=value of the physical quantity corresponding to the input value x2, Fig. 8.5.3: association of a physical quantity to the input signal press ENTER to continue. 5. Select the input value x1 for the first point (e.g. 4.00 mA). Select the option OK and confirm with ENTER to continue. 6. Select the physical quantity value y1 for the first point (e.g. 600 mbar). Select the op- tion OK and confirm with ENTER to continue. 7. Select the input value x2 for the second point (e.g. 20.00 mA). Select the option OK and confirm with ENTER to continue. 8. Select the physical quantity value y2 for the second point (e.g. 1100 mbar). Select the op- tion OK and confirm with ENTER to continue. 9. The message requesting confirmation of the configuration storage is displayed, press YES to save the settings and terminate the procedure. The procedure can be stopped at any moment by selecting the option CANCEL and confirming with ENTER. A user name can be associated to each measurement channel to remind the type of physical quantity detected. The user name can be set only through the HD35AP-S software. Physical quantity (e.g. Atm. Pressure) Input signal (e.g. 4…20 mA)

8.6 CALIBRATION Instruments and sensors are all factory-calibrated and do not normally require further inter- ventions of the user. Anyway, a new sensor calibration can be performed for: o CO at zero ppm, o CO2 at any reference value within the measurement range, o High accuracy R.H. (HD35ED…TC and HD35ED…TV models) at 75% and 33%, o Differential pressure at zero. R.H. calibration is not available for HD35ED…TVI models and for models with internal sensors (HD35ED[G]14bNAB and HD35ED[G]1NAB). No calibration is scheduled for temperature sensors. For a correct calibration of the probes, it is crucial to know and respect the physical phenom- ena which underlie measurements: for this reason, it is recommended to thoroughly follow the following instructions and to perform new calibrations only if in possession of adequate techni- cal knowledge and instruments. To access calibration, the data logger must have the user-calibration option set: o In models with graphic LCD, select the menu item Calibration ⇒ Calibration Type and set the User option. o In models with custom LCD, select the menu item CAL_MENU ⇒ CAL_TYPE and set the User option. The calibration procedure deletes the data of the previous user calibration. In case of failed procedure, you can always return the instrument to factory calibration by selecting: o in models with graphic LCD, the menu item Calibration ⇒ Calibration Type and setting the Factory option; o in models with custom LCD, the menu item CAL_MENU ⇒ CAL_TYPE and setting the FACT (factory) option. Calibration can be performed with HD35AP-S software (see software instructions) or, if the data logger has a display, through the front keyboard. 8.6.1 CO SENSOR CALIBRATION This calibration is available in HD35ED[G]14bNAB and HD35ED[G]1NAB models. The zero of the CO sensor can be calibrated in clean air (in outdoor environment CO concen- tration is less than 0.1ppm) or with the aid of nitrogen bottles (cod. MINICAN.12A). To use the nitrogen bottle, unbolt the two screws fixing the sensor protection grid, remove the grid and connect the tube with the rubber sleeve coming from the bottle to the CO sensor head. Supply the gas by adjusting the bottle flow meter so as to obtain a constant flow ranging within 0.1 and 0.2 l/min. Fig. 8.6.1: CO sensor position CO sensor

Calibration procedure: 1. Place the instrument in clean air or connect the nitrogen bottle as indicated above. 2. Wait for at least 15 minutes for the measurement to stabilize, with the instrument on. 3. Access the menu with the administrator password and select the item Calibration ⇒ CO 0 ppm calibration. Press ENTER to confirm. CALIBRATION 1) CO 0 ppm calibration 2) CO sensitivity calib. 3) CO2 Calibration 4) Calibration Type 5) Exit select confirm 4. Select the option OK and confirm with ENTER: the instrument stores the calibration and returns to the calibration submenu. CO 0 ppm CALIBRATION Calibrate CO 0 ppm measure Meas. [ppm] Cal. [ppm] 1 0 OK . CANCEL select confirm 5. If the nitrogen bottle was used, close the bottle tap, remove the CO sensor sleeve and place again the protection grid by fixing it with the two screws. 8.6.2 REPLACING THE CO SENSOR The CO sensor has an expected average life of over 5 years of use in normal conditions. Where it becomes necessary to replace the CO sensor, order a new sensor (code ECO-SURE-2E CO). Replacement procedure: 1. Unscrew the two front screws on the housing, remove the back cover and disconnect the battery. 2. Unscrew the two screws fixing the protection grid of the sensors, remove the grid and ex- tract the exhaust CO sensor (see fig. 8.6.1 for sensor position). 3. Take the new CO sensor and note the number marked on the edge of the new sensor indi- cating its sensitivity in nA/ppm. Fig. 8.6.2: CO sensor sensitivity 4. Insert the new sensor electrodes in the contacts. 5. Apply again the protection grid by fixing it with the two screws. 6. Reconnect the battery and close again the housing by fixing the 4 front screws. 7. Access the menu with the administrator password and select the Calibration ⇒ CO sensitivity calib. item. Press ENTER to confirm. Sensitivity

CALIBRATION 1) CO 0 ppm calibration 2) CO sensitivity calib. 3) CO2 Calibration 4) Calibration Type 5) Exit select confirm 8. Enter the sensitivity value, select the option OK and confirm with ENTER: the instru- ment stores the value and returns to the calibration submenu. CO SENSITIVITY CALIB. Set CO sensor sensiti- vity 50.0 nA/ppm . OK . CANCEL select confirm 9. Wait for at least 5 minutes after starting the instrument before detecting the measure- ment, so as to let the measurement become stable. If necessary, perform zero calibration of the new CO sensor. 8.6.3 CO2 SENSOR CALIBRATION This calibration is available in HD35ED[G]14bNAB and HD35ED[G]1NAB models. The CO2 sensor can be calibrated to any reference value within the measurement range. Calibration procedure: 1. Place the instrument in an environment with known CO2 concentration (for ex. in clean air). 2. Wait for at least 15 minutes for the measurement to become stable, with the instrument on. 3. Access the menu with the administrator password and select the item Calibration ⇒ CO2 calibration. Press ENTER to confirm. CALIBRATION 1) CO 0 ppm calibration 2) CO sensitivity calib. 3) CO2 Calibration 4) Calibration Type 5) Exit select confirm 4. The value measured by the instrument appears on the left, and the calibration point on the right. The instrument initially proposes the same measurement value as calibration point. 5. Enter the calibration value, select the option OK and confirm with ENTER. CO2 CALIBRATION Put sensor in known gas concentration Meas. [ppm] Cal. [ppm] 472 450 OK . CANCEL select confirm

6. The instrument tests the measurement stability. Wait for a few minutes for measurement completion. In the meantime, don’t stay too close to the instrument to avoid altering the measurement. WAIT FOR STABILIZATION OF CO2 CONCENTRATION… Please stay away to not alter measures Meas. [ppm] Avg [ppm] 472 - - - - 4 7. At the end, a message is shown indicating the calibration success or failure. Press any key to return to the calibration submenu. If a message appears declaring that calibration has failed, it means that the value measured by the instrument during the procedure differs too much from the set reference value. In that case repeat calibration checking the CO2 reference value in the environment and making sure to operate in a stable environment. 8.6.4 CO2 SENSOR AUTOCALIBRATION In HD35ED[G]14bNAB and HD35ED[G]1NAB models, the instrument can be set so as CO2 cali- bration is automatically performed at predetermined intervals. In order for auto calibration to be effective, the CO2 concentration in the environment where the instrument is installed must assume a known value (referred to as environment back- ground value). For example, we can have that an instrument installed inside a public place performs a weekly auto calibration when people are not present and CO2 concentration is close to the outdoor air value (if there is an adequate air change). Fig. 8.6.3: example of background value for CO2 auto calibration The offset applied to the measurement by the auto calibration procedure can be limited to a maximum value, so as to avoid erroneous calibrations when the measured value differs too much from the estimated background value. The auto calibration procedure acts therefore in the following way: o If the difference between the measured value and the background value is lower than the maximum offset, an offset is applied to the measurement so that the measured value coin- cides with the background value. o If the difference between the measured value and the background value is higher than the maximum offset, only the maximum offset is added or subtracted so as to approach the background value. To set the auto calibration interval and the maximum offset and to activate auto calibration see the menu item CO2 autocalibration on page 33. Background value Background value Weekly trend Weekly trend

8.6.5 CALIBRATING THE RELATIVE HUMIDITY SENSOR In HD35ED…TC and HD35ED…TV models with high accuracy R.H. sensor, the sensor can be cali- brated in the two points 75% RH and 33%RH. Before starting the calibration procedure, it’s better to check if a new calibration is necessary, with the aid of 75.4%RH and 33%RH saturated solutions: a calibration will be performed only if an error of a few humidity points in one of the two calibration points is detected. The sensor can be calibrated in both points or in one point only. Preliminary operations before calibration: Check that the chamber with the saturated saline solutions contains at the same time: • solid state salt, • liquid solution or wet salt, in particular for the 75%RH solution. The instrument and the saturated solutions to be used for this operation must be placed in a stable temperature environment for the whole calibration period. Wait for at least a couple of hours with a stable temperature so that the instrument and the saturated solutions reach a thermal balance with the environment before starting the calibration procedure. In order to ob- tain a good calibration, it is crucial that the probe and the solution have the same temperature. Bear in mind that plastic material is a bad heat conductor. Calibration should be performed at a temperature ranging within 15 and 30°C. Calibration procedure: 1. Unscrew the probe protection grid and screw the M12×1 threaded ring. Avoid any contact of the sensitive element with your hands or other objects or liquids. If some liquid has formed inside the measuring chamber, dry it with a clean absor- bent paper towel. 2. Unscrew the cap of the saturated solution. Screw the threaded ring with the probe on the saturated solution container and wait for at least 30 minutes. 3. Access the menu with the administrator password and select the item CAL_MENU. Press ENTER to confirm. 4. Select the item RH_75%_CAL to calibrate the point 75%RH or RH_33%_CAL to calibrate the point 33%RH. Press ENTER to confirm. 5. The blinking value of the saturated solution at the temperature measured by the probe is displayed. SET 75.2 24.5°C „ Note: the suggested calibration value is not updated if the measured temperature changes after starting calibration. If necessary, set manually the calibration value to the value of the saturated solution at the measured temperature using / keys (see table 8.6.1 below). 6. Press ENTER to confirm the value, the instrument stores the calibration and returns to the calibration submenu. 7. Remove the threaded ring with the probe from the container of the saturated solution and close the container with the solution.

8. To calibrate the second point, repeat the procedure from step 2 to step 7 with the second saturated solution. 9. Unscrew the M12X1 threaded ring from the probe and place again the sensor protection grid. TAB. 8.6.1: saturated solutions Temperature (°C) 33%RH Solution 75%RH Solution 15 33.3 75.6 20 33.0 75.4 25 32.7 75.2 30 32.4 75.0 8.6.6 DIFFERENTIAL PRESSURE CALIBRATION Differential pressure sensors may show a slight difference between the two inputs, conse- quently the instrument, with an equal pressure applied to the two inputs, doesn’t show a zero value. Proceed as follows for the zeroing of the differential value. Calibration procedure: 1. Leave the instrument pressure input open. 2. Access menu with the administrator password and select the item CAL_MENU ⇒ DIFF_PRES_0 Pa_CAL. Press ENTER to confirm. 3. The zero value blinks on the display. DIFF 0 LOG 2 – 4 „ 4. Press ENTER, the instrument stores the calibration and returns to the calibration sub- menu. 8.6.7 SENSITIVITY OF THE ILLUMINANCE AND/OR UVA IRRADIANCE PROBE If the illuminance and/or UVA irradiance probe is replaced, you need to set in the data logger the sensitivity of the new probe. Proceed as follows. 1. Access menu with the administrator password and select the item CAL_MENU ⇒ LGHT_SENS_PA_LUX to set the sensitivity of the illuminance sensor (in pA/lux) or CAL_MENU ⇒ UVA_SENS_nA_W/m2 to set the sensitivity of the UVA irradiance sensor (in nA/Wm-2). 2. Press ENTER, the current sensitivity value blinks on the display. 3. Set the new value by using the / keys. 4. Press ENTER, the instrument returns to the calibration submenu.

8.7 TECHNICAL CHARACTERISTICS OF DATA LOGGERS IN INDOOR USE HOUSING Power supply Non rechargeable lithium thyonil chloride (Li-SOCl2) internal battery, 3.6 V, AA format, 2-pole Molex 5264 connector. A connector for external power supply (SWD06) is available in models in housing with grid. Transmission frequency 868 MHz, 902-928 MHz or 915.9-929.7 MHz according to the model Antenna Internal Transmission range 300 m in open field The range can be reduced in the presence of obstacles or adverse atmospheric conditions Display Optional. Custom or graphic LCD according to the model (see table 8.1.2). Keyboard Connection button. Models with LCD have buttons for the configuration and scrolling of measured values. LED Indicators RF communication status. Models without LCD have alarm and battery level LEDs. Measuring interval (*) 1, 2, 5, 10, 15, 30 s / 1, 2, 5, 10, 15, 30, 60 min Logging and transmission interval (*) 1, 2, 5, 10, 15, 30 s / 1, 2, 5, 10, 15, 30, 60 min Internal memory Circular management or stop logging if memory is full. The number of storable samples depends on the number of detected quantities (see table 8.7.1). Alarm Acoustic by means of the internal buzzer Battery life Typ. 2 years (without repeaters, measurement interval 5 s and log interval 30 s) Operating temperature and humidity -20…+70 °C (-10…+70 °C for models with grid) 0…85 %RH non condensing Dimensions See dimensional drawings Connectors for external probes with cable According to the model, M12 connectors or 3.5 mm pitch input terminals. Weight 200 g approx. (version with LCD, battery included) Housing ABS Protection Degree IP 64 (versions with M12 connectors) Installation Wall support (supplied) for removable installation or flanges (option) for fixed installation. (*) Some models that measure several quantities may have a minimum interval exceeding 1 second. Each system data logger can be set with its own measuring and logging interval. The stored value is the aver- age of the measurements acquired during the logging interval.

TAB. 8.7.1: memory capacity of data loggers in indoor use housing Models Number of storable samples Notes HD35EDN/1TC, HD35ED7P/1TC, HD35EDNTV, HD35ED1TV, HD35ED1TVI, HD35ED4r…, HD35EDH with only one input used (not as counter) 74,000 HD35EDN/2TC, HD35ED7P/2TC HD35EDH with only one input used as counter HD35EDH with two inputs used (not as counter) 56,000 HD35EDN/3TC, HD35ED7P/3TC HD35EDH with two inputs used, one as counter HD35EDH with three inputs used (not as counter) 44,000 HD35ED1NB 44.000 (1) HD35EDH with three inputs used, one as counter 36,000 HD35ED1NAB, HD35ED14bNITV, HD35ED14bNITCV 36,000 (1) HD35ED14bNAB, HD35ED1NIUTV, HD35ED1NIUTCV 32,000 (1),(2) HD35ED14bNIUTV, HD35ED14bNIUTCV 28,000 (1),(2) HD35ED1NTC, HD35ED17PTC, HD35ED1NTV, HD35ED1NTVI 22,000 (1) HD35ED1N/2TC, HD35ED1NITV, HD35ED1NITCV, HD35ED14bNTC, HD35ED14bNTVI, HD35ED14bNTV, HD35ED1N4r…TV 20,000 (1) Note 1: They store also 5 calculated humidity quantities: dew point temperature, wet bulb temperature, absolute humidity, mixing ratio, partial vapor pressure. Note 2: Models measuring illuminance and UVA irradiance store also the proportion of UV present (µW/lumen). A sample consists of all the quantities measured and calculated by the data logger at the same acquisition time. For example, HD35ED1NAB model detects four quantities and calculates five (derived humidity quantities) and a sample includes a temperature measurement, a CO meas- urement, a CO2 measurement and six humidity measurements (the relative humidity measure- ment plus the five derived quantities). TAB. 8.7.2: measurement characteristics (instrument in line with sensor) For all data logger models except versions with terminal header inputs Temperature - NTC10K Sensor For …N…TC and …TV versions Sensor NTC 10 kΩ @ 25 °C Measuring range -40…+105 °C Resolution (instrument) 0.1 °C Accuracy ± 0.3 °C in the range 0…+70 °C / ± 0.4 °C outside Stability 0.1 °C/year Temperature – Sensor integrated in RH module For …TVI versions and HD35ED1NB, HD35EDG1NB, HD35ED1NAB, HD35EDG1NAB, HD35ED14bNAB, HD35EDG14bNAB models Sensor Sensor integrated in humidity module Measuring range -40…+105 °C Resolution (instrument) 0.1 °C Accuracy ± 0.2 °C in the range 0…+60 °C ± (0.2 – 0.05 * T) °C in the range T=-40…0 °C ± [0.2 + 0.032 * (T-60)] °C in the range T=+60…+105 °C Stability 0.05 °C/year

Temperature - Pt100/Pt1000 Sensor For …7P…TC versions Sensor Pt100 / Pt1000 1/3 DIN thin film Measuring range -100…+350 °C max. for probes measuring only temperature (the measuring range can be limited by the operating temperature of the used probe) -40…+150 °C for T/RH combined probes HD3517ETC… Resolution (instrument) 0.1 °C Accuracy 1/3 DIN Stability 0.1 °C/year Relative Humidity – High accuracy sensor For …TC and …TV versions Sensor Capacitive Measuring range 0…100 %RH Resolution (instrument) 0.1 % Accuracy ± 1.5 % RH (0..90 % RH) / ± 2 % RH (remaining range) Sensor operating temperature -20…+80 °C standard -40…+150 °C with HP3517E… Response time T90 < 20 s (air speed = 2 m/s without filter) Temperature drift ±2% over the whole operating temperature range Stability 1%/year Calculated quantities According to the model: dew point, wet bulb temperature, abso- lute humidity, mixing ratio, partial vapor pressure Relative humidity For…TVI versions and HD35ED1NB, HD35EDG1NB, HD35ED1NAB, HD35EDG1NAB, HD35ED14bNAB, HD35EDG14bNAB models Sensor Capacitive Measuring range 0…100 %RH Resolution (instrument) 0.1 % Accuracy ± 1.8 %RH (0..80 % RH) ± [1.8 + 0.11 * (RH -80)] % RH (remaining range) Sensor operating temperature -40…+105 °C (R.H. max=[100-2*(T-80)] @ T=80…105 °C) Response time T63 < 4 s (air speed = 2 m/s,without filter) Temperature drift ±2% over the whole operating temperature range Stability < 0.5%/year Calculated quantities According to the model: dew point, wet bulb temperature, abso- lute humidity, mixing ratio, partial vapor pressure Atmospheric Pressure Sensor Piezo-resistive Measuring range 600…1100 hPa Resolution (instrument) 0.1 hPa Accuracy ± 0.5 hPa @ 20°C Stability 2 hPa/year Temperature drift ±3 hPa tra -20…+60 °C Differential Pressure Sensor Piezo-resistive Measuring range According to the model: range 1 range 2 range 3 range 4 ±2.5 hPa ±10 hPa ±100 hPa ±2000 hPa Resolution (instrument) 0.001 hPa 0.005 hPa 0.05 hPa 1 hPa Accuracy ± 1% f.s. over the whole compensated temperature range (0…50 °C) Connection Tube Ø 5 mm

Carbon Monoxide (CO) Sensor Electrochemical cell Measuring range 0 … 500 ppm Resolution (instrument) 1 ppm Accuracy ±3 ppm+3% of measurement Operating temperature -5…50 °C Response time T90 < 50 s Stability 5% of measurement /year Sensor life > 5 years in normal environmental conditions Carbon Dioxide (CO2) Sensor Non-dispersive infrared rays (NDIR) Measuring range 0…5000 ppm Resolution (instrument) 1 ppm Accuracy ±(50 ppm+3% of measurement) @ 20 °C and 1013 hPa Operating temperature -5…50 °C Response time T90 < 120 s (air speed= 2 m/s) Stability 5% of measurement/5 years Temperature drift 0.1% f.s. / °C Illuminance Sensor Photodiode Measuring range 0…10.000 lux Resolution (instrument) 1 lux (0…2000 lux), 5 lux (2000…10,000 lux) Spectral range In accordance with standard photopic curve V(λ) Spectral response See graph 1 α (temperature coefficient) f6(T) <0.05% K Calibration uncertainty <4% f'1 (accordance with photopic response V(λ)) <6% f2 (response as cosine law) <3% f3 (linearity) <1% f4 (instrument reading error) <0.5% f5 (fatigue) <0.5% Class B One year drift <1% Operating temperature 0…50 °C Reference standard CIE n°69 – UNI 11142 UVA Irradiance Sensor Photodiode Measuring range 0…2000 mW/m2 Resolution (instrument) 1 mW/m2 Spectral range UVA, peak ≅ 360 nm Spectral response See graph 2 Calibration uncertainty <5% f2 (response as cosine law) <6% f3 (linearity) <1% f4 (instrument reading error) ±1 digit f5 (fatigue) <0.5% One year drift <2% Operating temperature 0…50 °C

Graph 1 – Relative spectral response of illuminance sensor Graph 2 – Relative spectral response of UVA irradiance sensor TAB. 8.8.3: Characteristics of terminal header inputs of HD35EDH instrument: Pt100 / Pt1000 Measuring range -200…+650 °C Resolution 0.1 °C Accuracy ± 0.1 °C (excluding probe error) Sensor coefficient α=0.00385 °C-1 Connection 2, 3 or 4 wires Thermocouple Thermocouple type K, J, T, N, E Use thermocouples with isolated hot junction Measuring range type K: -200…+1370 °C type J: -100…+750 °C type E: -200…+750 °C type T: -200…+400 °C type N: -200…+1300 °C Resolution 0.1 °C Accuracy (excluding probe error) type K: ± 0.1 °C (< 600 °C) type E: ± 0.1 °C (< 300 °C) ± 0.2 °C (> 600 °C) ± 0.2 °C (> 300 °C) type N: ± 0.1 °C (< 600 °C) type J: ± 0.1 °C ± 0.2 °C (> 600 °C) type T: ± 0.1 °C Input 0/4…20 mA Shunt resistance Internal (50 Ω) Resolution 16 bit Accuracy ± 2 µA Inputs 0…1 V o 0…50 mV Input Resistance 100 MΩ Resolution 16 bit Accuracy ± 0.01% f.s. Inputs for counting the switchings of a voltage-free contact Switching frequency 50 Hz max. Hold Time 10 ms min. Potentiometer input Potentiometer Typically 10 kΩ Resolution 16 bit Accuracy ± 0.01% f.s. WAVE LENGTH (nm) RELATIVE SPECTRAL RESPONSE (%) WAVE LENGTH (nm) RELATIVE SPECTRAL RESPONSE (%)

9 HD35EDW… WATERPROOF DATA LOGGERS 9.1 DESCRIPTION Models without LCD display Models with LCD display 1. Probes and/or integrated sensors. The aspect of the lower part of the data logger depends on the model (see next paragraph). 2. BATTERY LED: green color, indicates the charge level of the internal battery. As the bat- tery runs low, the LED blinks with a lower and lower frequency (the blink period increases of 1 second for each 10% decrease of the battery charge). 3. ALARM LED: red color, it blinks when the measurement is in alarm condition. 4. Green RF LED: blinks if data transmission was successful. 5. Red RF LED: blinks to indicate that data transmission has failed. 6. RF Antenna. The antenna is external for outdoor installation with protection shield against solar radiations; the antenna is internal for indoor installation. 7. Custom LCD display.

Data logger models in waterproof housing In order to highlight the physical quantities measured by data loggers, order codes include some identification characters for the various quantities, according to the following convention: 1 = Humidity 4b = Atmospheric Pressure (barometer) N = Temperature with NTC10K sensor (N/2 =two channels, N/3 = three channels) 7P = Temperature with Pt100/Pt1000 sensor (7P/3 = three channels) R = Solar radiation (pyranometer) P = Rainfall quantity V = Acceleration TC = Probe with cable TV = Fixed vertical temperature and/or R.H. probe without cable, with high accuracy R.H. sensor TVI = Fixed vertical temperature and R.H. probe without cable Models measuring temperature and humidity with combined probe with cable (…TC models) use the probes of the HP3517… series with high accuracy relative humidity sensor and NTC 10KΩ @ 25 °C or Pt100 temperature sensor according to the model. The replacement of the HP3517… probe requires instrument recalibration in line with the new probe. Models with M12 connectors equipped with inputs for the measurement of temperature only use TP35… series temperature probes with NTC 10KΩ @ 25 °C or Pt100/Pt1000 sensor. In models with 2 or 3 M12 connectors, the input number is shown on the connector side. In models measuring the atmospheric pressure, the sensor is inside the instrument. Refer to the figures indicated in the last column of the table below for probes connection modes and the position of the integrated sensors in the various models. M12 connector for combined RH/T probe or temperature probe M12 connector for combined RH/T probe or temperature probe M12 connector for temperature probe M12 connectors for temperature probes Vertical fixed RH/T probe

TAB. 9.1.1: models of data loggers in waterproof housing MEASUREMENTS OPTIONAL LCD INPUTS L G Model NTC 10K Pt100 Pt1000 RH Patm PYRA Rainfall a Custom Graphic Number of M12 connectors Built-in sensors Fig. HD35EDW 7P/1 TC • • 1 A HD35EDW 7P/2 TC • • 2 B HD35EDW 7P/3 TC • • 3 C HD35EDW N/1 TC • • 1 A HD35EDW N/2 TC • • 2 B HD35EDW N/3 TC • • 3 C HD35EDW N TV • • • D HD35EDW 1 TV • • • D HD35EDW 1 TVI • • • D HD35EDW 1N TC • • • 1 A HD35EDW 1N/2 TC • • • 2 B HD35EDW 17P TC • • • 1 A HD35EDW 1N TV • • • • D HD35EDW 1N TVI Sensor integrated in RH module • • • D HD35EDW 14bN TC • • • • 1 Patm A HD35EDW 14b7P TC • • • • 1 Patm A HD35EDW RP TC • • • 2 B HD35EDW 1NV Sensor integrated in RH module • • • • D 9.2 INSTALLATION OF WATERPROOF HOUSING The housing for waterproof models can be fixed to a wall or, for outdoor installations, to a 40 mm diameter mast by means of HD2003.77/40 clamping. Fig. 9.2.1: installation of waterproof housing Plastic washers for thermal insulation of the housing from metal parts

For outdoor installations, use the optional protection shield against solar radiations (HD9217TF1). Data loggers supplied with clamping already mounted on the back of the housing are equipped with protection devices against over-voltages connected to the clamping. For a correct opera- tion of the protecting devices, the yellow/green wire with fast-on connector connected to the clamping should be connected to ground. The outdoor installation of the combined temperature and relative humidity probe requires HD9007A-1 or HD9007A-2 protection against solar radiations. 9.3 CONNECTION TO THE WIRELESS NETWORK The device can be connected and disconnected to/from the wireless network by pressing for 5 seconds the internal connection button. Fig. 9.3.1: internal connection button If the device is disconnected, by pressing for 5 seconds the connection button the buzzer emits a beep and the green RF LED blinks for 1 second to indicate the start of the connection proce- dure. If the device belongs to a wireless network and the base unit is reachable, after connection the buzzer emits a second beep and the green RF LED blinks during data transmission. If the de- vice doesn’t belong to a wireless network and the base unit is not reachable, the second beep of the buzzer is not emitted and the red RF LED will blink. If the device is connected, by pressing for 5 seconds the connection button the buzzer emits a beep, the red RF LED blinks for 1 second and the device is disconnected. In data loggers with LCD display, the connection status is signaled also by the connection icon on the display (see figure 3.6 on page 9): • The icon is steady on if the data logger is connected; • The icon blinks if the data logger is trying to connect (the icon will be steady on after connection or will go on blinking if the base unit cannot be reached or the data logger doesn’t belong to a wireless network); • The icon is off if the data logger is not connected. PING function: In the devices connected to a wireless network it is possible to check if the base unit can be reached by briefly pressing the connection button: if the green RF LED is blinking, it means that the base unit is reachable, otherwise it will be the red RF LED RF to blink. 9.4 DATA LOGGER WITH LCD OPTION Through HD35AP-S software, you can select the measurement to be displayed on the main line of the display or set the automatic alternation of measured quantities. Information on the con- nection status, logging (in progress/disabled), and battery charge level are shown. The secon- dary line displays temperature (if measured by the model). Connection button

Fig. 9.4.1: custom LCD 9.5 TECHNICAL CHARACTERISTICS OF DATA LOGGERS IN WATERPROOF HOUSING Transmission frequency 868 MHz, 902-928 MHz or 915.9-929.7 MHz according to the model Antenna External for outdoor installation with protection shield against solar radia- tions. Internal for indoor installation. Transmission range 300 m in open field (the range can be reduced in the presence of ob- stacles or adverse weather conditions) Measuring interval (*) 1, 2, 5, 10, 15, 30 s / 1, 2, 5, 10, 15, 30, 60 min Logging and transmission interval (*) 1, 2, 5, 10, 15, 30 s / 1, 2, 5, 10, 15, 30, 60 min Internal memory Circular management or stop logging if memory is full. The number of storable samples depends on the number of detected quantities (see table 9.5.1). Alarm Acoustic through internal buzzer Power supply Non rechargeable lithium thyonil chloride (Li-SOCl2) internal battery, 3.6 V, AA format, 2-pole Molex 5264 connector. Optional 24 Vac/dc power supply. Display Optional custom LCD Buttons Connection button inside the instrument LED indicators RF communication status (2-color LED) Battery life Typ. 2 years (without repeaters, measurement interval 5 s and log interval 30 s) Operating temperature and humidity -20…+70 °C / 0…100 %RH Dimensions See dimensional drawing Connectors for external probes with cable M12 connectors Weight 250 g approx.(battery included) Housing ABS Protection Degree IP 67 Installation Wall mount or fixing to a 40mm diameter mast through the clamping HD2003.77/40 (optional). Protection shield against solar radiations HD9217TF1 (optional) for outdoor installation. (*) Some models that measure many quantities may have a minimum interval higher than 1 second. Battery level Main line Logging status Connection status Secondary line RF interference indicator Measurement unit

TAB. 9.5.1: memory capacity of data loggers in waterproof housing Models Number of storable samples Notes HD35EDWN/1TC, HD35EDW7P/1TC, HD35EDWNTV, HD35EDW1TV, HD35EDW1TVI 74,000 HD35EDWN/2TC, HD35EDW7P/2TC 56.000 HD35EDWN/3TC, HD35EDW7P/3TC 44,000 HD35EDW1NTC, HD35EDW17PTC, HD35EDW1NTV, HD35EDW1NTVI 22,000 (1) HD35EDW1N/2TC, HD35EDW14bNTC, HD35EDW14b7PTC 20,000 (1) Note 1: they store also 5 calculated humidity quantities: dew point, wet bulb temperature, ab- solute humidity, mixing ratio, partial vapor pressure. A sample consists of all the quantities measured and calculated by the data logger at the same acquisition time. For example, HD35EDW1NTC model detects two quantities and calculates five (the derived humidity quantities) and a sample consists of a temperature measurement and six humidity measurements (the relative humidity measurement plus five derived quantities). TAB. 9.5.2: Measurement characteristics (instrument in line with sensor) Temperature - NTC10K Sensor For versions …N…TC and …TV Sensor NTC 10 kΩ @ 25 °C Measurement range -40…+105 °C Resolution (of instrument) 0.1 °C Accuracy ± 0.3 °C in the range 0…+70 °C / ± 0.4 °C outside Stability 0.1 °C/year Temperature – Sensor integrated in RH module For versions …TVI and the model HD35EDW1NV Sensor Sensor integrated in humidity module Measurement range -40…+105 °C Resolution (of instrument) 0.1 °C Accuracy ± 0.2 °C in the range 0…+60 °C ± (0.2 – 0.05 * T) °C in the range T=-40…0 °C ± [0.2 + 0.032 * (T-60)] °C in the range T=+60…+105 °C Stability 0.05 °C/year Temperature - Pt100/Pt1000 Sensor For versions …7P…TC Sensor Pt100 / Pt1000 1/3 DIN thin film Measurement range -100…+350 °C max. for probes measuring only temperature (the measurement range can be limited by the operating temperature of the used probe) -40…+150 °C for T/RH combined probes HP3517ETC… Resolution (of instrument) 0.1 °C Accuracy 1/3 DIN Stability 0.1 °C/year

Relative Humidity – High accuracy sensor For versions …TC and …TV Sensor Capacitive Measurement range 0…100 %RH Resolution (of instrument) 0.1 % Accuracy ± 1.5 %RH (0..90 % RH) / ± 2 % RH (remaining range) Sensor operating temperature -20…+80 °C standard -40…+150 °C with HP3517E…probe Response time T90 < 20 s (air speed = 2 m/s, without filter) Temperature drift ±2% over the whole operation temperature range Stability 1%/year Calculated quantities According to the model: dew point, wet bulb temperature, absolute humidity, mixing ratio, partial vapor pressure Relative Humidity For versions …TVI and the model HD35EDW1NV Sensor Capacitivo Measurement range 0…100 % RH Resolution (of instrument) 0.1 % Accuracy ± 1.8 % RH (0..80 %UR) ± [1.8 + 0.11 * (UR-80)] % RH (remaining range) Sensor operating temperature -40…+105 °C (R.H. max=[100-2*(T-80)] @ T=80…105 °C) Response time T63 < 4 s (air speed = 2 m/s, without filter) Temperature drift ±2% over the whole operating temperature range Stability < 0.5%/year Calculated quantities According to the model: dew point, wet bulb temperature, absolute humidity, mixing ratio, partial vapor pressure Atmospheric pressure Sensor Piezoresistive Measurement range 600…1100 hPa Resolution (of instrument) 0.1 hPa Accuracy ± 0.5 hPa @ 20°C Stability 2 hPa/year Temperature drift ±3 hPa tra -20…+60 °C Solar radiation Sensor Thermopile Measuring range 0…2000 W/m2 Resolution (of the instrument) 1 W/m2 Sensitivity Configurable in mV/(kW m-2) Calculated quantities Daily Wh/m2 (Wh = watt hour) Note: for the other characteristics, please refer to the data sheet of the chosen pyranometer. Rainfall quantity Sensor Tipping bucket with NC or NO configurable contact Resolution (of the instrument) Configurable 0.1 – 0.2 – 0.5 mm/tipping Note: for the other characteristics, please refer to the data sheet of the chosen rain gauge. Acceleration Sensor Triaxial Accelerometer Measurement range 0…16 g Resolution (of instrument) < 0.05 g (function of measured value) Accuracy < 0.1 g (function of measured value)

10 HD35ED-ALM REMOTE ALARM DEVICE 10.1 DESCRIPTION 1. ALARM LED: red color, it blinks to signal alarm conditions. 2. BATTERY LED: green color, it indicates the internal battery charge level. As the battery runs low, the LED blinks with a lower and lower frequency (the blink period increases of 1 second for each 10% decrease of the battery charge). 3. Relay outputs. The connection terminals are protected by a cover. 4. Green RF LED: it blinks if RF transmission was successful. 5. Red RF LED: it blinks to indicate that RF transmission has failed 6. Connection button. 7. Internal RF antenna. 10.2 CONNECTION Two bistable relays with potential-free contact are available. In order for relays to be activated in case of an alarm, alarm conditions should be associated to relays activation through the HD35AP-S software (see section Alarm settings in the software instructions). Contacts ar- rangement is shown in the following figure. Fig. 10.2.1: relays in HD35ED-ALM alarm device

10.3 CONNECTION TO THE WIRELESS NETWORK The device can be connected and disconnected to/from the wireless network by pressing for 5 seconds the connection button on the front panel (see step 6 of paragraph 7.1). If the device is disconnected, by pressing the connection button for 5 seconds the buzzer emits a beep and the green LED activates for one second to indicate the start of the connection pro- cedure. If the device belongs to a wireless network and the base unit is reachable, once con- nected, the buzzer emits a second beep and the green RF LED will blink during data transmis- sion. If the device doesn’t belong to a wireless network or the base unit cannot be reached, the second beep of the buzzer is not emitted and the red RF LED will blink. If the device is connected, by pressing the connection button for 5 seconds the buzzer emits a beep, the red RF LED activates for one second and the device is disconnected. PING function: In the devices connected to a wireless network it is possible to check if the base unit can be reached by briefly pressing the connection button: if the green RF LED is blinking, it means that the base unit is reachable, otherwise it will be the red RF LED to blink. 10.4 TECHNICAL CHARACTERISTICS OF THE ALARM DEVICE Power supply Non rechargeable lithium thyonil chloride (Li-SOCl2) internal battery, 3.6 V, AA format, 2-pole Molex 5264 connector. Transmission Frequency 868 MHz, 902-928 MHz or 915.9-929.7 MHz according to the model Antenna Internal Transmission range 300 m in open field The range can be reduced in the presence of obstacles or adverse atmospheric conditions Keyboard Connection button LED indicators Alarm condition, battery charge level, RF communication status. Relays 2 bistable relays with potential-free contact Contact: max 1A @ 30Vdc resistive charge Buzzer Sounds cyclically when an alarm condition occurs: 1 single beep indicates that relay 1 is active 2 beeps in rapid succession indicate that relay 2 is active 3 beeps in rapid succession indicate that both relays are active Battery life 1 year in typical operating conditions The effective life depends on how often the alarm condition is generated Operating temperature and humidity -10…+60 °C / 0…85 %RH non condensing Dimensions See dimensional drawing Weight 200 g approx. (battery included) Housing ABS Installation Wall mount (supplied) for removable installation or flanges (optional) for fixed installation

11 MODBUS In MODBUS communication the base unit works as a multiplexer (i.e., as an interface) to address MODBUS commands from PC/PLC to wireless network devices. That means that the address of a wireless device (for ex. a data logger) which is not physically connected to the RS485 (MOD- BUS-RTU) or LAN (MODBUS TCP/IP) network can be added to the MODBUS command: the base unit, physically connected to the RS485 or LAN network, will intercept the command and will send it to the interested wireless device. The wireless device will execute the command and reply to the base unit; this will send back the reply to the PC/PLC. In order for a wireless device to be ad- dressed successfully, devices with the same MODBUS address as that of wireless devices should not be present in RS485 or LAN network. The device general information can be read through the function code 0x2B/0x0E. It consists of: • Manufacturer (Delta OHM) • Model • Firmware version The complete list of MODBUS registers is shown below. According to the device model, some of the listed registers could not be present if not significant for that particular model (for ex., CO2 measurement will not be available if it is not measured by the data logger). If you try to read a register that is not present, the instrument returns the fixed value 32767. In case of doubt on the registers actually available in a particular model, use the function " Download the list of MODBUS registers of the device " included in the Settings sections of HD35AP-S software (see software instructions). The following conventions have been used in the tables: o AP = base unit, ED = data logger, RE = repeater, AL = alarm module AP, ED, RE, AL columns indicate the device where the parameter is available. o Type: b = bit, B = 8 bits (Byte), W = 16 bits without sign (Word), SW = 16 bits with sign o (x10) = decimal value expressed as an integer (e.g., if the content of the register is 184, the value is to be intended as 18,4). o (x100) = centesimal value expressed as an integer (e.g., if the content of the register is 500, the value is to be intended as 5,00). The commands for requesting units of measurement return an index according to the corre- spondence indicated in the table below: TAB. 11.1: indexes of the units of measurement Index Unit of meas. Index Unit of meas. Index Unit of meas. Index Unit of meas. Index Unit of meas. 0 °C 10 atm 20 mph 30 mA 40 Counts 1 °F 11 mmHg 21 knot 31 ppm 41 mm/h 2 %RH 12 mmH2O 22 W/m2 32 Hz 42 inch/h 3 g/m3 13 inchHg 23 µW/cm2 33 % 43 counts/h 4 g/kg 14 inchH2O 24 Wh/m2 34 degrees 44 mW/m2 5 mbar 15 kgf/cm2 25 kWh/m2 35 lux 255 Not defined 6 bar 16 PSI 26 J/m2 36 m2/s 7 Pa 17 m/s 27 µJ/cm2 37 g (*) 8 hPa 18 km/h 28 V 38 mm 9 kPa 19 ft/s 29 mV 39 inch (*) Gravity acceleration

TAB. 11.2: Discrete Inputs – Read-only parameters Address Type Discrete Input description AP ED RE AL 0 b If 1, the device is subjected to RF interference due to the transmission of more covering repeaters. 9 9 9 1 b If 1, the last transmitted measurement packet has been lost 9 2 b Flag PENDING_CONF. If 1, there is a pending configuration change request. 9 9 9 9 3 b If 1, there are more devices with the same Modbus address in the network. The conflict must be solved. 9 4 b If 1, there is a RF scheduling problem. The set transmission in- terval is too short. 9 9 5 b If 1, a network migration to another RF channel is in progress. 9 9 9 9 6 b If 1, the device supports a rechargeable battery. 9 9 TAB. 11.3: Coils – Read/Write parameters Address Type Coil description AP ED RE AL 0 b Waiting time after Modbus transmission: 0= immediate reception, 1=waiting time for 3.5 characters 9 1 b Logging status: 0=active, 1=inactive 9 2 b Logging mode: 0=non cyclic, 1=cyclic 9 3 b Set 1 to delete the device logging memory. Bit zeroing is automatic. 9 9 4 b Buzzer activation (for AP and ED) or relays activation (for AL) in case of measurement alarm: 0=no, 1=yes 9 9 9 5 b If 1, there are unsaved device parameters in the flash mem- ory. Set 0 to force storage. 9 6 b If 1, there is a pending RF rescheduling (RF transmission se- quence of devices). Set 0 to force rescheduling. 9 7 b Flag CMD_FAILURE. If 1, at least a command sent to the de- vice has failed. Set 0 to reinitialize the flag. 9 9 9 9 8 b Buzzer activation in case of RF alarm: 0=no, 1=Yes 9 9 b Protection of configuration with password: 0=no, 1=yes Changing the parameter requires the Administrator password (see Holding Register 10036). 9 13 b Set 1 to reinitialize the counter in HD35EDH model with counter input. Bit zeroing is automatic. 9 14 b If 1, some device parameters in the base unit could be not up- dated. Set 0 to force the update. 9 9 9 15 b CO2 sensor autocalibration: 0=OFF, 1=ON 9 16 b Relay #1 activation in case of measurement alarm: 0=no, 1=yes 9 17 b Relay #1 activation in case of RF alarm : 0=no, 1=yes 9 18 b If 1, relay #1 is always active as long as the alarm persists 9 19 b Relay #2 activation in case of measurement alarm: 0=no, 1=yes 9 20 b Relay #2 activation in case of RF alarm : 0=no, 1=yes 9 21 b If 1, relay #2 is always active as long as the alarm persists 9 TAB. 11.4: Input Registers – Read-only parameters Address Type Input Register description AP ED RE AL Measured values and status of measurement alarms 0 SW TEMPERATURE with NTC10K sensor of channel 1 in the set measurement unit (x10). 9 1 B Alarm for temperature with NTC10K sensor of channel 1: 0=OFF, 1= lower threshold alarm, 2= higher threshold alarm 9

Address Type Input Register description AP ED RE AL 2 SW RELATIVE HUMIDITY in % (x10). Only for models with high accu- racy sensor (models …TC and …TV). 9 3 B Relative humidity alarm: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. Only for models …TC and …TV with high accuracy sensor. 9 4 SW DEW POINT in the set measurement unit (x10). 9 5 B Dew Point alarm: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 6 SW PARTIAL VAPOR PRESSURE in hPa (x100). 9 7 B Partial vapor pressure alarm: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 8 SW MIXING RATIO in g/Kg (x10). 9 9 B Mixing ratio alarm: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 10 SW ABSOLUTE HUMIDITY in g/m3 (x10). 9 11 B Absolute humidity alarm : 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 12 SW WET BULB TEMPERATURE in the set measurement unit (x10). 9 13 B Wet bulb temperature alarm: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 16 SW TEMPERATURE with NTC10K sensor of channel 2 in the set measurement unit (x10). 9 17 B Alarm for temperature with NTC10K sensor of channel 2: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 18 SW SOLAR RADIATION in W/m2. 9 19 B Alarm for solar radiation: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 20 SW ILLUMINANCE in lux. 9 21 B Illuminance alarm: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 22 SW CO in ppm. 9 23 B CO alarm: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 24 SW ATMOSPHERIC PRESSURE in the set measurement unit (the multi- plier depends on the set unit). 9 25 B Atmospheric pressure alarm: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 30 SW DAILY SOLAR RADIATION in Wh/m2. 9 31 B Alarm for daily solar radiation: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 32 SW CO2 in ppm. 9 33 B CO2 alarm: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 46 SW TEMPERATURE with sensor integrated in RH module in the set measurement unit (x10). Only for models …TVI and …AB. 9 47 B Alarm for temperature with sensor integrated in RH module: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. Only for models …TVI and …AB. 9 48 SW RELATIVE HUMIDITY in % (x10). Only for models …TVI and …AB. 9 49 B Relative humidity alarm: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. Only for models…TVI and …AB. 9 50 SW TEMPERATURE with NTC10K sensor of channel 3 in the set measurement unit (x10). 9

Address Type Input Register description AP ED RE AL 51 B Alarm for temperature with NTC10K sensor of channel 3: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 56 SW DIFFERENTIAL PRESSURE for the range r3 in the set measurement unit (the multiplier depends on the set unit). 9 57 B Differential pressure alarm for the range r3: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 60 SW DIFFERENTIAL PRESSURE for ranges r1 and r2 in the set meas- urement unit (the multiplier depends on the set unit). 9 61 B Differential pressure alarm for ranges r1 and r2: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 62 SW DIFFERENTIAL PRESSURE for the range r4 in the set measurement unit (the multiplier depends on the set unit). 9 63 B Differential pressure alarm for the range r4: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 64 SW TEMPERATURE with Pt100 sensor of HP3517E… probe in the set measurement unit (x10). 9 65 B Alarm for temperature with Pt100 sensor of HP3517E… probe: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 68 SW UVA IRRADIANCE in mW/m2. 9 69 B UVA irradiance alarm: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 70 SW PROPORTION OF UV PRESENT in µW/lumen. 9 71 B Proportion of UV present alarm: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 Measured values and status of measurement alarms for configurable inputs 1000 + 200 x (N-1) SW TEMPERATURE with 2-wire Pt100 sensor of channel N in the set measurement unit (x10). 9 1001 + 200 x (N-1) B Alarm for temperature with 2-wire Pt100 sensor of channel N: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 1002 + 200 x (N-1) SW TEMPERATURE with 3-wire Pt100 sensor of channel N in the set measurement unit (x10). 9 1003 + 200 x (N-1) B Alarm for temperature with 3-wire Pt100 sensor of channel N: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 1004 + 200 x (N-1) SW TEMPERATURE with 4-wire Pt100 sensor of channel N in the set measurement unit (x10). 9 1005 + 200 x (N-1) B Alarm for temperature with 4-wire Pt100 sensor of channel N: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 1006 + 200 x (N-1) SW TEMPERATURE with 2-wire Pt1000 sensor of channel N in the set measurement unit (x10). 9 1007 + 200 x (N-1) B Alarm for temperature with 2-wire Pt1000 sensor of channel N: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 1008 + 200 x (N-1) SW TEMPERATURE with 3-wire Pt1000 sensor of channel N in the set measurement unit (x10). 9 1009 + 200 x (N-1) B Alarm for temperature with 3-wire Pt1000 sensor of channel N: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 1010 + 200 x (N-1) SW TEMPERATURE with 4-wire Pt1000 sensor of channel N in the set measurement unit (x10). 9 1011 + 200 x (N-1) B Alarm for temperature with 4-wire Pt1000 sensor of channel N: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 1012 + 200 x (N-1) SW TEMPERATURE with TC_K sensor of channel N in the set measurement unit (x10). 9 1013 + 200 x (N-1) B Alarm for temperature with TC_K sensor of channel N: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 1014 + 200 x (N-1) SW TEMPERATURE with TC_J sensor of channel N in the set measurement unit (x10). 9 1015 + 200 x (N-1) B Alarm for temperature with TC_J sensor of channel N: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9

Address Type Input Register description AP ED RE AL 1016 + 200 x (N-1) SW TEMPERATURE WITH TC_T sensor of channel N in the set measurement unit (x10). 9 1017 + 200 x (N-1) B Alarm for temperature with TC_T sensor of channel N: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 1018 + 200 x (N-1) SW TEMPERATURE with TC_N sensor of channel N in the set measurement unit (x10). 9 1019 + 200 x (N-1) B Alarm for temperature with TC_N sensor of channel N: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 1026 + 200 x (N-1) SW TEMPERATURE with TC_E sensor of channel N in the set measurement unit (x10). 9 1027 + 200 x (N-1) B Alarm for temperature with TC_E sensor of channel N: 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 1028 + 200 x (N-1) SW Input value in mV of channel N (x10). Only if channel N is configured as 0…1 V input (HD35EDH). 9 1029 + 200 x (N-1) B Alarm for channel N if the channel is configured as 0…1 V in- put (HD35EDH): 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 1030 + 200 x (N-1) SW Input value in mV of channel N (x100). Only if channel N is configured as 0…50 mV input (HD35EDH). 9 1031 + 200 x (N-1) B Alarm for channel N if the channel is configured as 0…50 mV input (HD35EDH): 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 1032 + 200 x (N-1) SW Input value in mA of channel N (x100). Only if channel N is configured as 4…20 mA input (HD35EDH). 9 1033 + 200 x (N-1) B Alarm for channel N if the channel is configured as 4…20 mA input (HD35EDH): 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 1034 + 200 x (N-1) SW Position of potentiometer in % of channel N. Only if channel N is configured as potentiometric input (HD35EDH). 9 1035 + 200 x (N-1) B Alarm for channel N if the channel is configured as potentiomet- ric input (HD35EDH): 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 1036 + 200 x (N-1) SW Value of quantity associated to channel N if the channel is con- figured as 0…1 V input (HD35EDH). 9 1037 + 200 x (N-1) B Alarm for quantity associated to channel N if the channel is con- figured as 0…1 V input (HD35EDH): 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 1038 + 200 x (N-1) SW Value of quantity associated to channel N if the channel is con- figured as 0…50 mV input (HD35EDH). 9 1039 + 200 x (N-1) B Alarm for quantity associated to channel N if the channel is con- figured as 0…50 mV input (HD35EDH): 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 1040 + 200 x (N-1) SW Value of quantity associated to channel N if the channel is con- figured as 4…20 mA input (HD35EDH). 9 1041 + 200 x (N-1) B Alarm for quantity associated to channel N if the channel is con- figured as 4…20 mA input (HD35EDH): 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 1042 + 200 x (N-1) SW Value of quantity associated to channel N if the channel is con- figured as potentiometric input (HD35EDH). 9 1043 + 200 x (N-1) B Alarm for quantity associated to channel N if the channel is con- figured as potentiometric input (HD35EDH): 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 4000 to 4001 SW Number of counts. Only if the channel is configured as counter (HD35EDH). 9 4002 to 4003 B Alarm for number of counts if the channel is configured as counter (HD35EDH): 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9

Address Type Input Register description AP ED RE AL da 4004 a 4005 SW Value of quantity associated to the channel if the channel is con- figured as counter (HD35EDH). 9 4006 to 4007 B Alarm for quantity associated to the channel if the channel is configured as counter (HD35EDH): 0=OFF, 1=lower threshold alarm, 2=higher threshold alarm. 9 Measurement units and resolution 5000 W Unit of measurement for TEMPERATURE with NTC10K sensor of channel 1: 0=°C, 1=°F. 9 5004 W DEW POINT measurement unit: 0=°C, 1=°F. 9 5012 W WET BULB TEMPERATURE measurement unit: 0=°C, 1=°F. 9 5016 W Unit of measurement for TEMPERATURE with NTC10K sensor of channel 2: 0=°C, 1=°F. 9 5024 W ATMOSPHERIC PRESSURE measurement unit: see TAB 10.1 9 5025 SW ATMOSPHERIC PRESSURE resolution: …, -2=100, -1=10, 0=1, 1=0.1, 2=0.01, … 9 5046 W Unit of measurement for TEMPERATURE with sensor integrated in RH module: 0=°C, 1=°F. Only for models …TVI and …AB. 9 5050 W Unit of measurement for TEMPERATURE with NTC10K sensor of channel 3: 0=°C, 1=°F. 9 5056 W DIFFERENTIAL PRESSURE measurement unit for range r3: see TAB 10.1 9 5057 SW DIFFERENTIAL PRESSURE resolution for range r3: …, -2=100, -1=10, 0=1, 1=0.1, 2=0.01, … 9 5060 W DIFFERENTIAL PRESSURE measurement unit for ranges r1 and r2: see TAB 10.1 9 5061 SW DIFFERENTIAL PRESSURE resolution for ranges r1 and r2: …, -2=100, -1=10, 0=1, 1=0.1, 2=0.01, … 9 5062 W DIFFERENTIAL PRESSURE measurement unit for range r4: see TAB 10.1 9 5063 SW DIFFERENTIAL PRESSURE resolution for range r4: …, -2=100, -1=10, 0=1, 1=0,1, 2=0,01, … 9 5064 W Unit of measurement for TEMPERATURE with Pt100 sensor of HP3517E… probe: 0=°C, 1=°F. 9 6000 + 200 x (N-1) W Unit of measurement for TEMPERATURE with 2-wire Pt100 sensor of channel N: 0=°C, 1=°F. 9 6002 + 200 x (N-1) W Unit of measurement for TEMPERATURE with 3-wire Pt100 sensor of channel N: 0=°C, 1=°F. 9 6004 + 200 x (N-1) W Unit of measurement for TEMPERATURE with 4-wire Pt100 sensor of channel N: 0=°C, 1=°F. 9 6006 + 200 x (N-1) W Unit of measurement for TEMPERATURE with 2-wire Pt1000 sensor of channel N: 0=°C, 1=°F. 9 6008 + 200 x (N-1) W Unit of measurement for TEMPERATURE with 3-wire Pt1000 sensor of channel N: 0=°C, 1=°F. 9 6010 + 200 x (N-1) W Unit of measurement for TEMPERATURE with 4-wire Pt1000 sensor of channel N: 0=°C, 1=°F. 9 6012 + 200 x (N-1) W Unit of measurement for TEMPERATURE with TC_K sensor of channel N: 0=°C, 1=°F. 9 6014 + 200 x (N-1) W Unit of measurement for TEMPERATURE with TC_J sensor of channel N: 0=°C, 1=°F. 9 6016 + 200 x (N-1) W Unit of measurement for TEMPERATURE with TC_T sensor of channel N: 0=°C, 1=°F. 9 6018 + 200 x (N-1) W Unit of measurement for TEMPERATURE with TC_N sensor of channel N: 0=°C, 1=°F. 9 6026 + 200 x (N-1) W Unit of measurement for TEMPERATURE with TC_E sensor of channel N: 0=°C, 1=°F. 9

Address Type Input Register description AP ED RE AL 6036 + 200 x (N-1) W Measurement unit of the quantity associated to channel N if the channel is configured as 0…1 V input (HD35EDH). See TAB 10.1 9 6037 + 200 x (N-1) SW Resolution of the quantity associated to channel N if the channel is configured as 0…1 V input (HD35EDH): …, -2=100, -1=10, 0=1, 1=0.1, 2=0.01, … 9 6038 + 200 x (N-1) W Measurement unit of the quantity associated to channel N if the channel is configured as 0…50 mV (HD35EDH). See TAB 10.1 9 6039 + 200 x (N-1) SW Resolution of the quantity associated to channel N if the channel is configured as 0…50 mV (HD35EDH): …, -2=100, -1=10, 0=1, 1=0.1, 2=0.01, … 9 6040 + 200 x (N-1) W Measurement unit of the quantity associated to channel N if the channel is configured as 4…20 mA input (HD35EDH). See TAB 10.1 9 6041 + 200 x (N-1) SW Resolution of the quantity associated to channel N if the channel is configured as 4…20 mA input (HD35EDH): …, -2=100, -1=10, 0=1, 1=0.1, 2=0.01, … 9 6042 + 200 x (N-1) W Measurement unit of the quantity associated to channel N if the channel is configured as potentiometric input (HD35EDH). See TAB 10.1 9 6043 + 200 x (N-1) SW Resolution of the quantity associated to channel N if the channel is configured as potentiometric input (HD35EDH): …, -2=100, -1=10, 0=1, 1=0.1, 2=0.01, … 9 9002 W Measurement unit of the quantity associated to channel N if the channel is configured as counter (HD35EDH). See TAB 10.1 9 9003 SW Resolution of the quantity associated to channel N if the channel is configured as counter (HD35EDH): …, -2=100, -1=10, 0=1, 1=0.1, 2=0.01, … 9 General information 10000 W Year of last measurement. 9 10001 W Month of last measurement. 9 10002 W Day of last measurement. 9 10003 W Hour of last measurement. 9 10004 W Minutes of last measurement. 9 10005 W Seconds of last measurement. 9 10006 W Packet Error Rate in % of the device (x10). 9 9 9 10007 W Number of RF hops of the last transmitted packet. 9 9 9 10008 SW RF signal level in dBm (relating to last RF hop). 9 9 9 10009 W Battery level: 0=empty, 1=half full , 2=full, 3=external power supply 9 9 9 9 10010 W Time, in seconds, elapsed since the last transmitted packet. 9 9 9 10011 W RF signal level expressed as 0 to 7 scale. 9 9 9 10012 W Modbus address of the AP to which the device is connected. 9 9 9 10013 W Password level for the current connection: 0=no password, 1=user level, 2= administrator level 9 10014 W Battery remaining capacity in %. 9 9 10015 W Estimation of battery remaining capacity in hours (x10). 9 9 10016 W Type of power supply: 0=battery, 1=USB, 2=ext. power supply 9 9 10017 W Estimation of battery remaining capacity in weeks 9 9 10018 W Alarm relay #1 status: 0=deactivated, 1=intermittent, 2=active, 3=undetermined 9 10019 W Alarm relay #2 status: 0=deactivated, 1=intermittent, 2=active, 3=undetermined 9

TAB. 11.5: Holding Registers – Read/Write parameters Address Type Holding Register description AP ED RE AL Measurement alarm thresholds 0 SW Lower alarm threshold for TEMPERATURE with NTC10K sensor of channel 1 in the set measurement unit (x10). 9 1 SW Higher alarm threshold for temperature with NTC10K sensor of channel 1 in the set measurement unit (x10). 9 2 SW RH lower alarm threshold in % (x10). Only for models with high accuracy sensor (models …TC and …TV). 9 3 SW RH higher alarm threshold in % (x10). Only for models with high accuracy sensor (models …TC and …TV). 9 4 SW DEW POINT lower alarm threshold in the set measurement unit (x10). 9 5 SW Dew point higher alarm threshold in the set measurement unit (x10). 9 6 SW PARTIAL VAPOR PRESSURE lower alarm threshold in hPa (x100). 9 7 SW Partial vapor pressure higher alarm threshold in hPa (x100). 9 8 SW MIXING RATIO lower alarm threshold in g/Kg (x10). 9 9 SW Mixing ratio higher alarm threshold in g/Kg (x10). 9 10 SW ABSOLUTE HUMIDITY lower alarm threshold in g/m3 (x10). 9 11 SW Absolute humidity higher alarm threshold in g/m3 (x10). 9 12 SW WET BULB TEMPERATURE lower alarm threshold in the set measure- ment unit (x10). 9 13 SW Wet bulb temperature higher alarm threshold in the set measure- ment unit (x10). 9 16 SW Lower alarm threshold for TEMPERATURE with NTC10K sensor of channel 2 in the set measurement unit (x10). 9 17 SW Higher alarm threshold for temperature with NTC10K sensor of channel 2 in the set measurement unit (x10). 9 18 SW Lower alarm threshold for SOLAR RADIATION in W/m2. 9 19 SW Higher alarm threshold for solar radiation in W/m2. 9 20 SW ILLUMINANCE lower alarm threshold in lux. 9 21 SW Illuminance higher alarm threshold in lux 9 22 SW CO lower alarm threshold in ppm. 9 23 SW CO higher alarm threshold in ppm. 9 24 SW ATMOSPHERIC PRESSURE lower alarm threshold in the set meas- urement unit (the multiplier depends on the set unit). 9 25 SW Atmospheric pressure higher alarm threshold in the set meas- urement unit (the multiplier depends on the set unit). 9 30 SW Lower alarm threshold for DAILY SOLAR RADIATION in Wh/m2. 9 31 SW Higher alarm threshold for daily solar radiation in Wh/m2. 9 32 SW CO2 lower alarm threshold in ppm. 9 33 SW CO2 higher alarm threshold in ppm. 9 46 SW Lower alarm threshold for TEMPERATURE with sensor integrated in RH module in the set measurement unit (x10). Only for models …TVI and …AB. 9 47 SW Higher alarm threshold for temperature with sensor integrated in RH module in the set measurement unit (x10). Only for models …TVI and …AB. 9 48 SW RH lower alarm threshold in % (x10). Only for models …TVI and …AB. 9 49 SW RH higher alarm threshold in % (x10). Only for models …TVI and …AB. 9

Address Type Holding Register description AP ED RE AL 50 SW Lower alarm threshold for TEMPERATURE with NTC10K sensor of channel 3 in the set measurement unit (x10). 9 51 SW Higher alarm threshold for temperature with NTC10K sensor of channel 3 in the set measurement unit (x10). 9 56 SW DIFFERENTIAL PRESSURE lower alarm threshold for range r3 in the set measurement unit (the multiplier depends on the set unit). 9 57 SW Differential pressure higher alarm threshold for range r3 in the set measurement unit (multiplier depends on the set unit). 9 60 SW DIFFERENTIAL PRESSURE lower alarm threshold for ranges r1 and r2 in the set measurement unit (the multiplier depends on the set unit). 9 61 SW Differential pressure higher alarm threshold for ranges r1 and r2 in the set measurement unit (the multiplier depends on the set unit). 9 62 SW DIFFERENTIAL PRESSURE lower alarm threshold for range r4 in the set measurement unit (the multiplier depends on the set unit). 9 63 SW Differential pressure higher alarm threshold for range r4 in the set measurement unit (the multiplier depends on the set unit). 9 64 SW Lower alarm threshold for TEMPERATURE with Pt100 sensor of HP3517E… probe in the set measurement unit (x10). 9 65 SW Higher alarm threshold for temperature with Pt100 sensor of HP3517E… probe in the set measurement unit (x10). 9 68 SW UVA IRRADIANCE lower alarm threshold in mW/m2. 9 69 SW UVA irradiance higher alarm threshold in mW/m2. 9 70 SW PROPORTION OF UV PRESENT lower alarm threshold in µW/lumen. 9 71 SW Proportion of UV present higher alarm threshold in µW/lumen. 9 Measurement alarm thresholds for configurable inputs 1000 + 200 x (N-1) SW Lower alarm threshold for TEMPERATURE with 2-wire Pt100 sensor of channel N in the set measurement unit (x10). 9 1001 + 200 x (N-1) SW Higher alarm threshold for temperature with 2-wire Pt100 sen- sor of channel N in the set measurement unit (x10). 9 1002 + 200 x (N-1) SW Lower alarm threshold for TEMPERATURE with 3-wire Pt100 sensor of channel N in the set measurement unit (x10). 9 1003 + 200 x (N-1) SW Higher alarm threshold for temperature with 3-wire Pt100 sen- sor of channel N in the set measurement unit (x10). 9 1004 + 200 x (N-1) SW Lower alarm threshold for TEMPERATURE with 4-wire Pt100 sensor of channel N in the set measurement unit (x10). 9 1005 + 200 x (N-1) SW Higher alarm threshold for temperature with 4-wire Pt100 sen- sor of channel N in the set measurement unit (x10). 9 1006 + 200 x (N-1) SW Lower alarm threshold for TEMPERATURE with 2-wire Pt1000 sensor of channel N in the set measurement unit (x10). 9 1007 + 200 x (N-1) SW Higher alarm threshold for temperature with 2-wire Pt1000 sensor of channel N in the set measurement unit (x10). 9 1008 + 200 x (N-1) SW Lower alarm threshold for TEMPERATURE with 3-wire Pt1000 sensor of channel N in the set measurement unit (x10). 9 1009 + 200 x (N-1) SW Higher alarm threshold for temperature with 3-wire Pt1000 sensor of channel N in the set measurement unit (x10). 9 1010 + 200 x (N-1) SW Lower alarm threshold for TEMPERATURE with 4-wire Pt1000 sensor of channel N in the set measurement unit (x10). 9 1011 + 200 x (N-1) SW Higher alarm threshold for temperature with 4-wire Pt1000 sensor of channel N in the set measurement unit (x10). 9 1012 + 200 x (N-1) SW Lower alarm threshold for TEMPERATURE with TC_K sensor of channel N in the set measurement unit (x10). 9

Address Type Holding Register description AP ED RE AL 1013 + 200 x (N-1) SW Higher alarm threshold for temperature with TC_K sensor of channel N in the set measurement unit (x10). 9 1014 + 200 x (N-1) SW Lower alarm threshold for TEMPERATURE with TC_J sensor of channel N in the set measurement unit (x10). 9 1015 + 200 x (N-1) SW Higher alarm threshold for temperature with TC_J sensor of channel N in the set measurement unit (x10). 9 1016 + 200 x (N-1) SW Lower alarm threshold for TEMPERATURE with TC_T sensor of channel N in the set measurement unit (x10). 9 1017 + 200 x (N-1) SW Higher alarm threshold for temperature with TC_T sensor of channel N in the set measurement unit (x10). 9 1018 + 200 x (N-1) SW Lower alarm threshold for TEMPERATURE with TC_N sensor of channel N in the set measurement unit (x10). 9 1019 + 200 x (N-1) SW Higher alarm threshold for temperature with TC_N sensor of channel N in the set measurement unit (x10). 9 1026 + 200 x (N-1) SW Lower alarm threshold for TEMPERATURE with TC_E sensor of channel N in the set measurement unit (x10). 9 1027 + 200 x (N-1) SW Higher alarm threshold for temperature with TC_E sensor of channel N in the set measurement unit (x10). 9 1028 + 200 x (N-1) SW Channel N lower alarm threshold in mV (x10). Only if channel N is configured as 0…1 V input (HD35EDH). 9 1029 + 200 x (N-1) SW Channel N higher alarm threshold in mV (x10). Only if channel N is configured as 0…1 V input (HD35EDH). 9 1030 + 200 x (N-1) SW Channel N lower alarm threshold in mV (x100). Only if channel N is configured as 0…50 mV input (HD35EDH). 9 1031 + 200 x (N-1) SW Channel N higher alarm threshold in mV (x100). Only if chan- nel N is configured as 0…50 mV input (HD35EDH). 9 1032 + 200 x (N-1) SW Channel N lower alarm threshold in mA (x100). Only if chan- nel N is configured as 4…20 mA input (HD35EDH). 9 1033 + 200 x (N-1) SW Channel N higher alarm threshold in mA (x100). Only if chan- nel N is configured as 4…20 mA input (HD35EDH). 9 1034 + 200 x (N-1) SW Channel N lower alarm threshold in %. Only if channel N is configured as potentiometric input (HD35EDH). 9 1035 + 200 x (N-1) SW Channel N higher alarm threshold in %. Only if channel N is configured as potentiometric input (HD35EDH). 9 1036 + 200 x (N-1) SW Lower alarm threshold expressed as value of the quantity asso- ciated to channel N when the channel is configured as 0…1 V in- put (HD35EDH). 9 1037 + 200 x (N-1) SW Higher alarm threshold expressed as value of the quantity asso- ciated to channel N when the channel is configured as 0…1 V in- put (HD35EDH). 9 1038 + 200 x (N-1) SW Lower alarm threshold expressed as value of the quantity asso- ciated to channel N when the channel is configured as 0…50 mV (HD35EDH). 9 1039 + 200 x (N-1) SW Higher alarm threshold expressed as value of the quantity asso- ciated to channel N when the channel is configured as 0…50 mV (HD35EDH). 9 1040 + 200 x (N-1) SW Lower alarm threshold expressed as value of the quantity asso- ciated to channel N when the channel is configured as 4…20 mA (HD35EDH). 9 1041 + 200 x (N-1) SW Higher alarm threshold expressed as value of the quantity asso- ciated to channel N when the channel is configured as 4…20 mA (HD35EDH). 9 1042 + 200 x (N-1) SW Lower alarm threshold expressed as value of the quantity asso- ciated to channel N when the channel is configured as potenti- ometric input (HD35EDH). 9 1043 + 200 x (N-1) SW Higher alarm threshold expressed as value of the quantity asso- ciated to channel N when the channel is configured as potenti- ometric input (HD35EDH). 9

Address Type Holding Register description AP ED RE AL 4000 to 4001 SW Lower alarm threshold as number of counts. Only if the chan- nel is configured as counter (HD35EDH). 9 4002 to 4003 SW Higher alarm threshold as number of counts. Only if the channel is configured as counter (HD35EDH). 9 4004 to 4005 SW Lower alarm threshold expressed as value of the quantity asso- ciated to the channel when the channel is configured as counter (HD35EDH). 9 4006 to 4007 SW Higher alarm threshold expressed as value of the quantity asso- ciated to the channel when the channel is configured as counter (HD35EDH). 9 General information 10000 to 10019 B User code with ASCII codification. Acceptable values are in the set {32,…,126}. 9 9 9 9 10020 W Current year 9 10021 W Current month 9 10022 W Current day 9 10023 W Current hour 9 10024 W Current minute 9 10025 W Current second 9 10026 W Measurement interval: 0=1s, 1=2s, 2=5s, 3=10s, 4=15s, 5=30s, 6=1min, 7=2min, 8=5min, 9=10min, 10=15min, 11=30min, 12=1h 9 10027 W Logging/RF interval: 0=1s, 1=2s, 2=5s, 3=10s, 4=15s, 5=30s, 6=1min, 7=2min, 8=5min, 9=10min, 10=15min, 11=30min, 12=1h 9 9 10029 W Network RF channel. By changing this register, all network de- vices migrate to the new RF channel. 9 10030 W Max number of RF transmissions for each command sent by AP to a remote device. 9 10031 W Packet Error Rate threshold in % (x10) for RF alarms genera- tion (for ex. 500 means 50.0%) 9 10032 W Temperature measurement unit: 0=°C, 1=°F The setting is extended to all EDs except for mapped quanti- ties in HD35EDH 9 10033 W Atmospheric pressure measurement unit: see TAB 10.1. The setting extends to all EDs except for mapped quantities in HD35EDH 9 10034 W Baud rate RS485: 0=9600, 1=19200, 3=38400 bit/s 9 10035 W RS485 communication mode: 0=8N1, 1=8N2, 2=8E1, 3=8E2, 4=8O1, 5=8O2 9 10036 W Password to be supplied to enable configuration change com- mands. The reading provides the fixed value 32768. 9 10037 B Device group with ASCII codification. Acceptable values are in the set {32,…,126}. 9 9 9 9 10049 W Differential pressure measurement unit for ranges r1, r2 and r3: see TAB 10.1. The setting is extended to all EDs except for the mapped quantities in HD35EDH 9 10050 W Differential pressure measurement unit for range r4: see TAB 10.1. The setting is extended to all EDs except for the mapped quantities in HD35EDH 9 10052 W Setting of the quantities to be displayed in the automatic view- ing cycle for models HD35EDLW… without keyboard. Set the i-th bit (starting from LSB) to 1 if you wish to include the i-th quantity in the viewing cycle. Example: if in the model measuring and calculating: 1=Temp., 2=RH, 3=Td, 4=PVP, 5=Mix.Ratio, 6=AH, 7=Tw, the register is set to 0000 0000 0010 0010, only the relative humidity (RH) and the absolute humidity (AH) will be displayed alternatively. 9

Address Type Holding Register description AP ED RE AL 10053 W Setting of the RF quantities (RSSI, PER%) to be displayed in the automatic viewing cycle for models HD35EDLW… without key- board. Set the i-th bit (starting from LSB) to 1 if you wish to include the i-th quantity in the viewing cycle. 9 10054 W Period, in hours, of CO2 sensor auto calibration. 9 10055 W Period, in hours, after which the first CO2 auto calibration after activation will occur. 9 10056 W CO2 reference value (in ppm) for auto calibration. 9 10057 W CO2 maximum acceptable variation (in ppm), with respect to the reference value, for auto calibration. 9 10058 W Relay #1 activation duration in seconds (1…54000 s) in case of cyclical activation (Coils – address 18 = 0). 9 10059 W Relay #1 deactivation duration in seconds (1…54000 s) in case of cyclical activation (Coils – address 18 = 0). 9 10060 W Number of relay #1 activations in case of cyclical activation (Coils – address 18 = 0). 9 10061 W Relay #2 activation duration in seconds (1…54000 s) in case of cyclical activation (Coils – address 21 = 0). 9 10062 W Relay #2 deactivation duration in seconds (1…54000 s) in case of cyclical activation (Coils – address 21 = 0). 9 10063 W Number of relay #2 activations in case of cyclical activation (Coils – address 21 = 0). 9 20000 to 20011 B User code with ASCII codification of measurement #1. Available for models with more measurements of the same type. 9 20012 to 20023 B User code with ASCII codification of measurement #2. Available for models with more measurements of the same type. 9 20024 to 20035 B User code with ASCII codification of measurement #3. Available for models with more measurements of the same type. 9 20036 to 20047 B User code with ASCII codification of measurement #4. Available for models with more measurements of the same type. 9 20048 to 20059 B User code with ASCII codification of measurement #5. Available for models with more measurements of the same type. 9 20060 to 20071 B User code with ASCII codification of measurement #6. Available for models with more measurements of the same type. 9 20072 to 20083 B User code with ASCII codification of measurement #7. Available for models with more measurements of the same type. 9 20084 to 20095 B User code with ASCII codification of measurement #8. Available for models with more measurements of the same type. 9 20096 to20107 B User code with ASCII codification of measurement #9. Available for models with more measurements of the same type. 9 20108 to 20119 B User code with ASCII codification of measurement #10. Available for models with more measurements of the same type. 9 20120 to 20131 B User code with ASCII codification of measurement #11. Available for models with more measurements of the same type. 9 20132 to 20143 B User code with ASCII codification of measurement #12. Available for models with more measurements of the same type. 9 Warning: the execution of MODBUS commands changing the parameters setting of a device can take a certain time, due to the RF transmission between the device and the base unit. The value of the flag PENDING_CONF (Discrete Inputs – address 2) is set to 1 during the execution of a configuration change request. Only when the flag returns to 0 the request is considered as concluded. The flag CMD_FAILURE (Coils – address 7) allows to check whether the request was successful. It is recommended to check the status of the two flags before considering a device configuration changed.

12 DIMENSIONS The following figures show the dimensions of the instruments in mm. HD35AP - HD35APW - HD35APG - HD35RE HD35APS HD35ED… versions with fixed RH/T probe HD35ED… versions with grid HD35ED… versions with M12 connectors HD35ED… versions with terminals

HD35ED… versions with Support for removable installation differential pressure inputs Flanges for fixed installation Lock pin HD35EDW… versions with M12 connectors HD35EDW… versions with fixed RH/T probe Note 1: the antenna is external for outdoor installation with protection shield against solar ra- diations; the antenna is internal for indoor installation. note 1

13 RELATIVE HUMIDITY AND TEMPERATURE PROBES Combined probes for temperature and relative humidity: Temperature probes with Pt100 and Pt1000 1/3 DIN thin film sensor: HP3517… R.H. Sensor Capacitive Temperature sensor NTC 10 kΩ @ 25 °C (HP3517TC…) Pt100 1/3 DIN (HP3517ETC…) R.H. sensor measurement range 0…100 %RH Temperature sensor measurement range -40…+105 °C (HP3517TC… with NTC 10 kΩ sensor) -40…+150 °C (HP3517ETC… with Pt100 sensor) R.H. sensor operating temperature -20…+80 °C standard -40…+150 °C with option E Accuracy ± 1.5 %RH (0..90 %RH) / ± 2 %RH (remaining range) Cable length 2, 5 or 10 m standard Connection 4-pole M12 female connector TP35.1… Sensor 3-wire Pt1000 Temperature range -50…+105 °C Accuracy 1/3 DIN Application Immersion Cable length 3, 5 or 10 m standard, other lengths on request Connection Free wires or 4-pole M12 female connector (option /C) Material AISI 316 stainless steel tube TP35.2… Sensor 3-wire Pt1000 Temperature range 0…+70 °C Accuracy 1/3 DIN Application Immersion Cable length 3 or 5 m standard, other lengths on request Connection Free wires or 4-pole M12 female connector (option /C) Material Thermo-plastic rubber

TP35.5… Sensor 3-wire Pt1000 Temperature range -40…+300 °C Accuracy 1/3 DIN Application Penetration Cable length 3 or 5 m standard, other lengths on request Connection Free wires or 4-pole M12 female connector (option /C) Material AISI 316 stainless steel tube Temperature probes with NTC 10KΩ @ 25 °C sensor: TP35N1... Sensor NTC 10 kΩ @ 25 °C Temperature range -20…+85 °C Accuracy ± 0.3 °C in the range 0…+70 °C / ± 0.4 °C outside Application Immersion Cable length 3, 5 o 10 m standard, other lengths on request Connection Free wires or 4-pole M12 female connector (option /C) Material AISI 316 stainless steel tube TP35.4… Sensor 4-wire Pt100 Temperature range -50…+105 °C Accuracy 1/3 DIN Application Immersion Cable length 3, 5 or 10 m standard, other lengths on request Connection Free wires or 4-pole M12 female connector (option /C) Material AISI 316 stainless steel tube

TP35N2... Sensor NTC 10 kΩ @ 25 °C Temperature range 0…+70 °C Accuracy ± 0.3 °C Application Immersion Cable length 3, 5 o 10 m standard, other lengths on request Connection Free wires or 4-pole M12 female connector (option /C) Material AISI 316 stainless steel tube TP35N5... Sensor NTC 10 kΩ @ 25 °C Temperature range -20…+105 °C Accuracy ± 0.3 °C in the range 0…+70 °C / ± 0.4 °C outside Application Penetration Cable length 3 o 5 m standard, other lengths on request Connection Free wires or 4-pole M12 female connector (option /C) Material AISI 316 stainless steel tube Temperature probes with K thermocouple sensor: TP35K6.5 Sensor K thermocouple with isolated junction Max temperature -50…+750 °C Accuracy Class 1 according to IEC 60584-2 Application Immersion Cable length 5 m standard, other lengths on request Connection Free wires Material AISI 316 stainless steel tube

Connections of Pt100, Pt1000 and NTC 10KΩ temperature probes with M12 connector: Reference External view of the instrument M12 connector Probe M12 connector NTC 10KΩ Pt100 Pt1000 4 wires Pt100 Pt1000 2 wires Pt100 Pt1000 3 wires

14 STORAGE OF INSTRUMENTS Instruments storage conditions: • Temperature: -40...+70 °C. • Humidity: less than 90 %RH no condensation. • In storage, avoid places where: • humidity is high; • instruments are exposed to direct sun radiation; • instruments are exposed to a high temperature source; • high vibration levels are present; • there are vapor, salt and/or corrosive gas. 15 SAFETY INSTRUCTIONS General safety instructions These instruments have been manufactured and tested in accordance with EN61010-1 safety directives for electronic measuring instruments and have left the factory in perfect safety tech- nical conditions. The instruments proper operation and operating safety can be ensured only if all standard safety measures as well as the specific measures described in this manual are followed. The instruments proper operation and operating safety can be ensured only in the climatic conditions specified in this manual. Do not use the instruments in places where there are: • Rapid ambient temperature variations that may cause condensation. • Corrosive or flammable gases. • Direct vibrations or shocks to the instrument. • High-intensity electromagnetic fields, static electricity. If the instruments are moved from a cold place to a hot one, or vice versa, condensation for- mation can cause their malfunction. In this case, you will have to wait for the instruments temperature to reach ambient temperature before turning the instruments on. User obligations The instruments operator shall follow the directives and regulations below that refer to the treatment of dangerous materials: ƒ EEC directives on workplace safety ƒ National low regulations on workplace safety ƒ Accident prevention regulations

16 ORDERING CODES BASE UNIT HD35AP… Base unit for interfacing between PC and system data loggers. USB connec- tion. In addition to USB output, one of the following options is available: RS485 output with MODBUS-RTU protocol (option S), Wi-Fi interface and ETHERNET connection with integrated Web server (option W), GSM module (option G). Power supply through PC USB port or external power supply unit SWD06 (option). The unit is supplied with: internal lithium-ion rechargeable battery HD35-BAT1, basic HD35AP-S software, wall support HD35.03, in- struction manual. Radio frequency (868, 902-928 or 915.9-929.7 MHz) should be speci- fied upon ordering. CP23 USB cable and HD35.11K kit (pair of flanges, lock pin and padlock) for fixed installation should be ordered separately. REPEATER HD35RE RF signal repeater. Power supply through PC USB port or external power supply unit SWD06 (option). Supplied with: internal lithium-ion rechargeable battery HD35-BAT1, wall support HD35.03, instruction manual. Radio frequency (868, 902-928 or 915.9-929.7 MHz) should be speci- fied upon ordering. CP23 USB cable and HD35.11K kit (pair of flanges, lock pin and padlock) for fixed installation should be ordered separately. ALARM MODULE HD35ED-ALM Module with two relay outputs for signaling alarm events. Power supply through non-rechargeable lithium-thionyl-chloride (Li-SOCl2) 3.6V internal battery, bat- tery life: 1 year typical. Supplied with: battery HD35-BAT2, wall support HD35.03, instruction manual. Radio frequency (868, 902-928 or 915.9-929.7 MHz) should be speci- fied upon ordering. HD35.11K kit (pair of flanges, lock pin and padlock) for fixed installation should be ordered separately. HD35ED-ALM. HD35RE. RADIO FREQUENCY: J = radio frequency 915.9-929.7 MHz (Japan) E = radio frequency 868 MHz (Europe) U = radio frequency 902-928 MHz (U.S.A. and Canada) HD35AP RADIO FREQUENCY: J = radio frequency 915.9-929.7 MHz (Japan) E = radio frequency 868 MHz (Europe) U = radio frequency 902-928 MHz (U.S.A. and Canada) . TYPE OF CONNECTION: No character = only USB output S = USB and RS485 with MODBUS-RTU protocol outputs W = USB output, Wi-Fi interface and ETHERNET connection with integrated Web server G = USB output and GSM module RADIO FREQUENCY: J = radio frequency 915.9-929.7 MHz (Japan) E = radio frequency 868 MHz (Europe) U = radio frequency 902-928 MHz (U.S.A. and Canada)

DATA LOGGER HD35ED… Wireless data logger. Stores measurements in the internal memory. Transmits the acquired data to the base unit automatically at regular intervals or on re- quest. Optional LCD Display. Acoustic alarm with internal buzzer. Power supply through non-rechargeable lithium-thionyl-chloride (Li-SOCl2) 3.6V inter- nal battery, typical life with 5s measurement interval and 30s transmission in- terval: 2 years. Supplied with: battery, wall support HD35.03 (only for in- door-use models), instruction manual. Radio frequency (868, 902-928 or 915.9-929.7 MHz) should be speci- fied upon ordering. External probes have to be ordered separately. The kit HD35.11K (pair of flanges, lock pin and padlock) for fixed installation of indoor housing has to be ordered separately. For versions with waterproof housing, specify upon ordering if the instru- ment should be installed outside with protection shield against solar radiations, and if the housing should be supplied with HD2003.77/40 clamping already assembled. PROBES TEMPERATURE AND RELATIVE HUMIDITY COMBINED PROBES HP3517… Temperature and relative humidity combined probe with high accuracy R.H. sensor. R.H. sensor measurement range: 0…100%. Temperature sensor: NTC10KΩ for HP3517TC…, Pt100 for HD3517ETC. NTC10KΩ sensor measure- ment range: -40…+105 °C. Pt100 sensor measurement range: -40…+150 °C. R.H. sensor operating temperature: -20…+80 °C standard, -40…+150 °C with option E. Diameter 14 mm. Cable length 2, 5 or 10 m standard. 4-pole M12 female connector. HP3517 CABLE LENGTH: 2 = 2 m , 5 = 5 m , 10 = 10 m . R.H. SENSOR OPERATING TEMPERATURE: No character = -20…+80 °C , E = -40…+150 °C STEM LENGTH: TC1 = 135 mm TC2 = 335 mm HD35ED RADIO FREQUENCY: J = radio frequency 915.9-929.7 MHz (Japan) E = radio frequency 868 MHz (Europe) U = radio frequency 902-928 MHz (U.S.A. and Canada) MEASURED QUANTITIES: See pages 25 and 49 for available models. Other models can be supplied on request for quantities. 1 = humidity 4b = atmospheric pressure (Barometer) 4 = differential pressure: 4r1=range 1, 4r2=range 2, ... (*) N = NTC10K temperature sensor: N/1=2 channel, N/2=2 channels, N/3=3 channels 7P = Pt100/Pt1000temperature sensor: 7P/1=1 channel, 7P/2=2 channels, 7P/3=3 channels A = carbon monoxide (CO) B = carbon dioxide (CO2) I = illuminance (lux) P = rainfall quantity R = solar radiation (pyranometer) U = UVA irradiance V = acceleration (*) See pg. 24 for the differential pressure ranges available . TYPE OF LCD: No character = without LCD L = custom LCD G = graphic LCD The type of LCD (custom or graphic) is not at choice but is determined by the data logger model (see pages 25 and 49). TYPE OF PROBE: No character = grid-protected internal sensors H = terminal header inputs TC = probe with cable TV = fixed vertical T/R.H. combined probe without cable, with high accuracy R.H. sensor TVI = fixed vertical T/R.H. combined probe without cable HOUSING: No character = indoor use W = waterproof

HD9007A-1 12-ring protection against solar radiations. Includes support bracket. HD9007A-2 16-ring protection against solar radiations. Includes support bracket. HD9007T26.2 Adapter for Ø 14 mm probes for protections against solar radiations HD9007A-1 and HD9007A-2. Pt100 AND Pt1000 TEMPERATURE PROBES TP35.1… Stainless steel immersion temperature probe. 3-wire Pt1000 1/3 DIN sensor. Dimensions: Ø 6 x 50 mm. Cable length 3, 5 or 10 m standard. Cable ending with free wires or 4-pole M12 female connector. Operating tempera- ture: -50…+105 °C. TP35.2… Thermoplastic rubber immersion temperature probe. 3-wire Pt1000 1/3 DIN sensor. Dimensions: Ø 5 x 20 mm. Cable length 3 or 5 m standard. Cable ending with free wires or 4-pole M12 female connector. Operating tempera- ture: 0…+70 °C. TP35.4… Stainless steel immersion temperature probe. 4-wire Pt100 1/3 DIN sensor. Dimensions: Ø 6 x 50 mm. Cable length 3, 5 or 10 m standard. Cable ending with free wires or 4-pole M12 female connector. Operating tempera- ture: -50…+105 °C. TP35.5… Stainless steel penetration temperature probe. 3-wire Pt1000 1/3 DIN sensor. Dimensions: Ø 4 x 100 mm. Cable length 3 or 5 m standard. Cable ending with free wires or 4-pole M12 female connector. Operating tempera- ture: -40…+300 °C. NTC 10KΩ @ 25 °C SENSOR TEMPERATURE PROBES TP35N1… Stainless steel immersion temperature probe. NTC 10KΩ @ 25 °C sensor. Di- mensions: Ø 5 x 40 mm. Cable length 3, 5 or 10 m standard. Cable ending with free wires or 4-pole M12 female connector. Operating tempera- ture: -20…+85 °C. TP35N2… Stainless steel immersion temperature probe. NTC 10KΩ @ 25 °C sensor. Di- mensions: Ø 6 x 50 mm. Cable length 3, 5 or 10 m standard. Cable ending with free wires or 4-pole M12 female connector. Operating temperature: 0…+70 °C. TP35N5… Stainless steel penetration temperature probe. NTC 10KΩ @ 25 °C sensor. Dimensions: Ø 4 x 100 mm. Cable length 3 or 5 m standard. Cable ending with free wires or 4-pole M12 female connector. Operating tempera- ture: -20…+105 °C. TP35. No character = cable ending with free wires /C = cable ending with 4-pole M12 female connector 1 = Stainless steel Pt1000 immersion temperature probe 2 = Thermoplastic rubber Pt1000 immersion temperature probe 4 = Stainless steel Pt100 immersion temperature probe 5 = Stainless steel Pt1000 penetration temperature probe 3 = cable length 3 m other lengths on request for quantities 5 = cable length 5 m 10 = cable length 10 m (only TP35.1… and TP35.4…) .

THERMOCOUPLE TEMPERATURE PROBES TP35K6.5 Stainless steel immersion temperature probe. K-type thermocouple sensor wih isolated junction. Cable length 5 m. Cable ending with free wires. PHOTOMETRIC – RADIOMETRIC PROBES LP 35 PHOT Photometric probe for the measurement of illuminance, CIE photopic filter, spectral response in accordance with standard photopic vision, diffuser for cosine correction. Measurement range: 0…10,000 lux. Cable length 2m. LP 35 P-A 2-sensor combined probe for the measurement of illuminance, with standard photopic spectral response, and UVA irradiance in 315 nm…400 nm spectral range, diffuser for cosine correction. Measurement range: 0…2000 mW/m2. Cable length 2m. LP BL Base with level. On request, to be assembled to the probe upon ordering. For photometric and radiometric probes. LP BL3 Adjustable wall support for Ø 30 mm photometric and radio- metric probes. ACCESSORIES HD35AP-S Additional copy of HD35AP-S basic software CD-ROM for system configura- tion, real-time measurement display and data download. Access to data is allowed only from the PC where the database is installed. For Windows® operating systems. HD35AP-PLUS Advanced version of HD35AP-S software allowing access to database from all the computers network-connected to the server where the database is installed. For Windows® operating systems. CP23 Direct USB connection cable with mini-USB male connector on the instru- ment side and A-type USB male connector on the PC side. CPM12-8P.2 8-pole cable. Length 2 m. 8-pole M12 connector on one side, free wires on the other. For RS485 connection to HD35APS base unit. CPM12-8P.5 8-pole cable. Length 5 m. 8-pole M12 connector on one side, free wires on the other. For RS485 connection to HD35APS base unit. CPM12-8P.10 8-pole cable. Length 10 m. 8-pole M12 connector on one side, free wires on the other. For RS485 connection to HD35APS base unit. SWD06 100-240 Vac / 6 Vdc - 1 A mains power supply. TP35 No character = cable ending with free wires /C = cable ending with 4-pole M12 female connector N1 = Stainless steel immersion temperature probe Ø 5 mm N2 = Stainless steel immersion temperature probe Ø 6 mm N5 = Stainless steel penetration temperature probe 3 = cable length 3 m other lengths on request for quantities 5 = cable length 5 m 10 = cable length 10 m (TP35N1… and TP35N2…only) .

HD35.03 Plastic support for removable installation of base units, repeaters and data loggers in indoor-use housing. HD35.11K Pair of flanges in anodized aluminum alloy for fixed installation of base units, repeaters and data loggers in indoor-use housing. Lock pin and pad- lock included. HD35.24W Flange for fixing to the wall the models HD35EDW... in waterproof housing. HD35-ANT Spare external RF antenna for HD35AP… base units and HD35RE repeater. HD35-BAT1 Lithium-ion rechargeable 3.7 V battery, capacity 2250 mA/h, JST 3-pole connector. For HD35AP… base units and HD35RE repeater. HD35-BAT2 Lithium Thionyl Chloride (Li-SOCl2) non rechargeable 3.6 V battery, AA format, Molex 5264 2-pole connector. For HD35ED… data loggers and HD35ED-ALM alarm module. HD2003.77/40 Clamping for fixing the waterproof housing to the 40 mm diameter mast. HD2003.71K 40 mm diameter mast kit, 2 m high, in two pieces. HD2003.75 Base for 40 mm diameter mast, with tip to be driven into the ground. HD2003.78 Base for 40 mm diameter mast, to be fixed to the floor. HD2003.75K Mast bracing kit, for ground installation, fixing diameter 2m. Stainless steel string. HD2003.78K Mast bracing kit, for floor installation, fixing diameter 2m. Stainless steel string. HD2003.2.14 Three sectors flange for ∅ 40 mm tube, 6 inputs ∅ 16 mm. HD2004.20 40 mm diameter tripod kit. 3 m high. It can be fixed on a surface with screws or on the ground by means of pegs. HD9217TF1 Protection shield against solar radiations for outdoor installation. For wa- terproof HD35EDW… data loggers. Accessories for humidity probes HD75 Saturated solution to check Relative Humidity probes at 75 % RH, includes ring adapter for 14 mm diameter probes, thread M12×1. HD33 Saturated solution to check Relative Humidity probes at 33 % RH, includes ring adapter for 14 mm diameter probes, thread M12×1. Accessories for CO sensor MINICAN.12A Nitrogen bottle for CO calibration at 0 ppm. Volume 20 liters. With ad- justment valve. MINICAN.12A1 Nitrogen bottle for CO calibration at 0 ppm. Volume 20 liters. Without ad- justment valve. ECO-SURE-2E CO Spare CO Sensor. HD37.36 Connection tube kit between instrument and MINICAN.12A for CO calibra- tion. DELTA OHM metrology laboratories LAT N° 124 are accredited by ACCREDIA for Temperature, Humidity, Pressure, Photometry / Radiometry, Acoustics and Air Velocity. They can supply calibration certificates for the accredited quantities.

FCC and IC Notices and Approvals Contains Transmitter Module FCC ID: X7J-A10040601 IC ID: 8975A-A10040601 Notice: This device complies with Part 15 -15.247(a2) and 15.247(b) and 15.249 of the FCC Rules and with Industry Canada (IC) licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Avis: Cet appareil est conforme avec Part 15 -15.247(a2) et 15.247(b) et 15.249 des règlements FCC et Industrie Canada (IC) RSS standard exempts de licence(s). Son fonctionnement est soumis aux deux conditions suivantes: (1) cet appareil ne peut pas provoquer d'interférence et (2) cet appareil doit accepter toute interférence, y compris les interférence qui peuvent causer un mauvais fonctionnement du dispositif. Notice: This equipment has been tested and found to comply with the limits for Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and radiates radio frequency energy, and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by tirning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measure: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. Notice: To satisfy FCC/IC RF exposure requirements for mobile and base station transmission devices, a separation distance of 20 cm or more should be maintained between the antenna of this device and persons during operation. To ensure compliance, operation at closer than this distance is not recommended. The antenna(s) used for this transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Avis: Pour répondre aux exigences d'exposition RF FCC/IC pour les dispositifs de transmission mobiles et les stations de base, une distance de séparation de 20 cm ou plus doit être maintenue entre l'antenne de l'appareil et des personnes en cours de fonctionnement. Pour assurer la conformité, l'exploitation de plus près à cette distance n'est pas recommandée. L'antenne(s) utilisé pout cet émetteur ne dois pas être co-localisés ou fonctionner conjointement avec une autre antenne ou transmetteur. Notice: Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication. Avis: Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance isotrope rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante.

CERTIFICATO DI CONFORMITÀ DEL COSTRUTTORE MANUFACTURER’S CERTIFICATE OF CONFORMITY rilasciato da issued by DELTA OHM SRL STRUMENTI DI MEASUREMENT DATA DATE 2013/07/02 Si certifica che gli strumenti sotto riportati hanno superato positivamente tutti i test di produzione e sono conformi alle specifiche, valide alla data del test, riportate nella documentazione tecnica. We certify that below mentioned instruments have been tested and passed all production tests, confirming compliance with the manufacturer's published specification at the date of the test. La riferibilità delle misure ai campioni internazionali e nazionali è garantita da una catena di riferibilità che ha origine dalla taratura dei campioni di prima linea dei laboratori accreditati di Delta OHM presso l’Istituto Primario Nazionale di Ricerca Metrologica. The traceability of measures assigned to international and national reference samples is guaranteed by a reference chain which source is the calibration of Delta OHM accredited laboratories reference samples at the Primary National Metrological Research Institute. Type Prodotto: Serie di datalogger wireless Product Type: Wireless Data Loggers series Nome Prodotto: Serie HD35… Product Name: HD35… series DELTA OHM SRL 35030 Caselle di Selvazzano (PD) Italy Via Marconi, 5 Tel. +39.0498977150 r.a. - Telefax +39.049635596 Cod. Fisc./P.Iva IT03363960281 - N.Mecc. PD044279 R.E.A. 306030 - ISC. Reg. Soc. 68037/1998

WARRANTY TERMS OF WARRANT All DELTA OHM instruments are subject to accurate testing, and are guaranteed for 24 months from the date of purchase. DELTA OHM will repair or replace free of charge the parts that, within the warranty period, shall be deemed non efficient according to its own judgement. Complete replacement is excluded and no damage claims are accepted. The DELTA OHM guarantee only covers instrument repair. The guarantee is void in case of incidental breakage during transport, negligence, misuse, connection to a different voltage than that required for the appliance by the operator. Finally, a product repaired or tampered by unauthorized third parties is excluded from the guarantee. The instrument shall be returned FREE OF SHIPMENT CHARGES to your dealer. The jurisdiction of Padua applies in any dispute. The electrical and electronic equipment marked with this symbol cannot be disposed of in public landfills. According to the UE Directive 2002/96/EC, the European users of electrical and electronic equipment can return it to the dealer or manufacturer upon purchase of a new one. The illegal disposal of electrical and electronic equipment is punished with an administrative fine. This warranty must be sent together with the instrument to our service centre. IMPORTANT: Warranty is valid only if coupon has been correctly filled in all details. Instrument code HD35… series Serial Number RENEWALS Date Date Inspector Inspector Date Date Inspector Inspector Date Date Inspector Inspector CE CONFORMITY The product complies with 2004/108/CE (EMC) and 2006/95/CE (low voltage) directives, and meets the requirements of the following technical standards: Safety EN61010-1 Electrostatic discharge immunity test EN61000-4-2 Level 3 Radiated, radio-frequency, electromagnetic field immunity EN61000-4-3 Level 3 Electrical fast transient/burst immunity EN61000-4-4 Level 3 Immunity to conducted disturbances, induced by RF fields EN61000-4-6 Voltage dips, short interruptions and voltage variations immunity EN61000-4-11 Radio disturbance characteristics (conducted and radiated emissions) EN55022:2007 class B