Endress+Hauser RIA15 Operating Instructions Manual

with HART® communication BA01170K/09/EN/05.15 71300896 Valid as of FW version: 01.04.xx

Endress+Hauser 3 Table of contents 1 Document information . . . . . . . . . . . . . . 4 1.1 Document function . . . . . . . . . . . . . . . . . . . . . 4 1.2 Document conventions . . . . . . . . . . . . . . . . . . . 4 1.3 Registered trademarks . . . . . . . . . . . . . . . . . . . 6 2 Safety instructions . . . . . . . . . . . . . . . . . . 7 2.1 Requirements for the personnel . . . . . . . . . . . . 7 2.2 Designated use . . . . . . . . . . . . . . . . . . . . . . . . 7 2.3 Workplace safety . . . . . . . . . . . . . . . . . . . . . . . 7 2.4 Operational safety . . . . . . . . . . . . . . . . . . . . . . 7 2.5 Product safety . . . . . . . . . . . . . . . . . . . . . . . . . 8 3 Product description . . . . . . . . . . . . . . . . . 9 3.1 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.2 Operating modes . . . . . . . . . . . . . . . . . . . . . . . 9 3.3 Input channels . . . . . . . . . . . . . . . . . . . . . . . . 12 4 Identification . . . . . . . . . . . . . . . . . . . . . 13 4.1 Nameplate . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.2 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . 13 4.3 Certificates and approvals . . . . . . . . . . . . . . . 13 4.4 HART® protocol certification . . . . . . . . . . . . . 14 5 Installation . . . . . . . . . . . . . . . . . . . . . . . 15 5.1 Incoming acceptance, transport, storage . . . . . 15 5.2 Installation conditions . . . . . . . . . . . . . . . . . . 15 5.3 Installation instructions . . . . . . . . . . . . . . . . . 15 5.4 Post-installation check . . . . . . . . . . . . . . . . . . 19 6 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 6.1 Quick wiring guide . . . . . . . . . . . . . . . . . . . . . 21 6.2 Connection in 4 to 20 mA mode . . . . . . . . . . . 22 6.3 Connection in HART mode . . . . . . . . . . . . . . . 22 6.4 Wiring with switchable backlighting . . . . . . . . 27 6.5 Inserting the cable, field housing . . . . . . . . . . 29 6.6 Shielding and grounding . . . . . . . . . . . . . . . . 29 6.7 Connecting to functional grounding . . . . . . . . 30 6.8 Degree of protection . . . . . . . . . . . . . . . . . . . 31 6.9 Post-connection check . . . . . . . . . . . . . . . . . . 31 7 Operation . . . . . . . . . . . . . . . . . . . . . . . . . 32 7.1 Operating functions . . . . . . . . . . . . . . . . . . . . 32 8 Commissioning . . . . . . . . . . . . . . . . . . . . 34 8.1 Post-installation check and switching on the device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 8.2 Operating matrix . . . . . . . . . . . . . . . . . . . . . . 34 8.3 Operating matrix in conjunction with the Micropilot FMR20 . . . . . . . . . . . . . . . . . . . . . 39 9 Troubleshooting . . . . . . . . . . . . . . . . . . 41 9.1 Error limits as per NAMUR NE 43 . . . . . . . . . 41 9.2 Diagnostic messages . . . . . . . . . . . . . . . . . . . 41 9.3 Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . 44 9.4 Software history and overview of compatibility . . . . . . . . . . . . . . . . . . . . . . . . . 44 10 Maintenance . . . . . . . . . . . . . . . . . . . . . . 46 11 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 12 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . 48 13 Accessories . . . . . . . . . . . . . . . . . . . . . . . 49 13.1 Device-specific accessories . . . . . . . . . . . . . . . 49 13.2 Service-specific accessories . . . . . . . . . . . . . . . 50 14 Technical data . . . . . . . . . . . . . . . . . . . . 51 15 HART® communication . . . . . . . . . . . . 55 15.1 HART® protocol command classes . . . . . . . . . . 55 15.2 HART® commands used . . . . . . . . . . . . . . . . . 56 15.3 Field device status . . . . . . . . . . . . . . . . . . . . . 56 15.4 Supported units . . . . . . . . . . . . . . . . . . . . . . . 57 15.5 HART® protocol connection types . . . . . . . . . . 61 15.6 Device variables for multivariable devices . . . . 62 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

of the life cycle of the device: from product identification, incoming acceptance and storage, to mounting, connection, operation and commissioning through to troubleshooting, maintenance and disposal. 1.2 Document conventions 1.2.1 Safety symbols Symbol Meaning DANGER DANGER! This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in serious or fatal injury. WARNING WARNING! This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in serious or fatal injury. CAUTION CAUTION! This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in minor or medium injury. NOTICE NOTE! This symbol contains information on procedures and other facts which do not result in personal injury. 1.2.2 Electrical symbols Symbol Meaning A0011197 Direct current A terminal to which DC voltage is applied or through which direct current flows. A0011198 Alternating current A terminal to which alternating voltage is applied or through which alternating current flows. A0017381 Direct current and alternating current • A terminal to which alternating voltage or DC voltage is applied. • A terminal through which alternating current or direct current flows. A0011200 Ground connection A grounded terminal which, as far as the operator is concerned, is grounded via a grounding system. A0011199 Protective ground connection A terminal which must be connected to ground prior to establishing any other connections. A0011201 Equipotential connection A connection that has to be connected to the plant grounding system: This may be a potential equalization line or a star grounding system depending on national or company codes of practice. A0012751 ESD - Electrostatic discharge Protect the terminals against electrostatic discharge. Failure to comply with this instruction can result in the destruction of parts or malffunction of the electronics.

Symbol Meaning Permitted Procedures, processes or actions that are permitted. Preferred Procedures, processes or actions that are preferred. Forbidden Procedures, processes or actions that are forbidden. Tip Indicates additional information. Reference to documentation Reference to page Reference to graphic , … , Series of steps Result of a step Help in the event of a problem Visual inspection 1.2.4 Symbols in graphics Symbol Meaning 1, 2, 3,... Item numbers , … , Series of steps A, B, C, ... Views A-A, B-B, C-C, ... Sections A0013441 Flow direction - A0011187 Hazardous area Indicates a hazardous area. . A0011188 Safe area (non-hazardous area) Indicates a non-hazardous area. 1.2.5 Tool symbols Symbol Meaning A0011220 Flat blade screwdriver A0011221 Allen key A0011222 Open-ended wrench A0013442 Torx screwdriver

The personnel for installation, commissioning, diagnostics and maintenance must fulfill the following requirements: ‣ Trained, qualified specialists must have a relevant qualification for this specific function and task ‣ Are authorized by the plant owner/operator ‣ Are familiar with federal/national regulations ‣ Before beginning work, the specialist staff must have read and understood the instructions in the Operating Instructions and supplementary documentation as well as in the certificates (depending on the application) ‣ Following instructions and basic conditions The operating personnel must fulfill the following requirements: ‣ Being instructed and authorized according to the requirements of the task by the facility's owner-operator ‣ Following the instructions in these Operating Instructions 2.2 Designated use The process display unit displays analog process variables or HART ® process variables on its screen. The device is powered via the 4 to 20 mA current loop and does not require an additional power supply. • The manufacturer accepts no liability for damages resulting from incorrect use or use other than that designated. It is not permitted to convert or modify the device in any way. • Panel-mounted device The device is designed for installation in a panel and must only be operated in an installed state. • Field device: The device is designed for installation in the field. • The device may only be operated under the permitted ambient conditions →  52. 2.3 Workplace safety For work on and with the device: ‣ Wear the required personal protective equipment according to federal/national regulations. 2.4 Operational safety Risk of injury. ‣ Operate the device in proper technical condition and fail-safe condition only. ‣ The operator is responsible for interference-free operation of the device. Conversions to the device Unauthorized modifications to the device are not permitted and can lead to unforeseeable dangers. ‣ If, despite this, modifications are required, consult with Endress+Hauser.

‣ Carry out repairs on the device only if they are expressly permitted. ‣ Observe federal/national regulations pertaining to repair of an electrical device. ‣ Use original spare parts and accessories from Endress+Hauser only. Environmental requirements If a plastic transmitter housing is permanently exposed to certain steam and air mixtures, this can damage the housing. ‣ If you are unsure, please contact your Endress+Hauser Sales Center for clarification. ‣ If used in an approval-related area, observe the information on the nameplate. 2.5 Product safety This measuring device is designed in accordance with good engineering practice to meet state-of-the-art safety requirements, has been tested, and left the factory in a condition in which it is safe to operate. It meets general safety standards and legal requirements. It also complies with the EC directives listed in the device-specific EC Declaration of Conformity. Endress+Hauser confirms this by affixing the CE mark to the device.

measuring signal in digital form. The process display unit does not require an external power supply. It is powered directly from the current loop. In connection with the radar level sensor Micropilot FMR20, the RIA15 can be used to make the basic settings for the Micropilot FMR20. As a prerequisite the RIA15 must be ordered with the respective option for the FMR20 basic setting. The device meets the requirements of the HART® Communication Protocol Specifications and can be used with devices with HART® Revision ≥ 5.0. 3.2 Operating modes The process display unit can be used in two different operating modes: 4 to 20 mA mode: In this operating mode, the process display unit is incorporated into the 4 to 20 mA current loop and measures the transmitted current. The variable calculated based on the current value and range limits is displayed in digital form on the 5-digit LCD. In addition, the associated unit and a bar graph can be displayed. HART mode: The device functions as a display unit even when operating with a HART® sensor/actuator. In this case, the display is also powered from the current loop. The process display unit can choose to function as a primary master or secondary master (default) in the HART® loop. When it functions as a master, the device can read process values from the measuring device and display them. HART® communication operates on the principle of master/slave. As a general rule, the sensor/actuator is a slave and only transmits information if a request has been made by the master. A HART® loop can have a maximum of two HART® masters at any one time. A distinction is made between primary (e.g. the control system) and secondary master (e.g. handheld terminal for on-site operation of the measuring devices) for these HART® masters. The two masters in the loop/in the network cannot be masters of the same type, e.g. they cannot be two "secondary masters". If a third HART® master is added to the network, one of the other masters must be disabled; otherwise a collision occurs in the network. If the process display unit is operating as "secondary master" and another "secondary master", e.g. a handheld device, is added to the network, the device interrupts HART® communication as soon as it detects that there is another "secondary master". The display alternates between error message C970 "Multi master collision" and "- - -". A measured value is not displayed in this case. The device leaves the HART® loop for 30 seconds and tries to re-establish HART® communication once again. Once the additional "secondary master" is removed from the network, the device continues communication and displays the measured values of the sensor/actuator once more. Please note that if two process display units are to be used in a multidrop connection, one device must be configured as "primary master" and the other as "secondary master" to prevent a master collision. In HART mode, the process display unit can show up to four device variables of a multivariable measuring device. These variables are referred to as the Primary Variable (PV), Secondary Variable (SV), Tertiary Variable (TV) and Quaternary Variable (QV). These variables are placeholders for measured values that can be called up using HART® communication.

• Primary process variable (PV) →Mass flow • Secondary process variable (SV) → Totalizer 1 • Third process variable (TV) → Density • Fourth process variable (QV) → Temperature The HART® section at the end of these Operating Instructions provides examples of these four device variables for multivariable measuring devices →  62. Please refer to the Operating Instructions for each device for details on the variables that are set as default on the sensor/actuator and how they can be changed. The process display unit can show each of these values. The individual values must be activated in the SETUP – HART1 to HART4 menu for this purpose. The individual parameters are assigned to fixed process variables in the device in this case: HART1 = PV HART2 = SV HART3 = TV HART4 = QV For example, if the PV and TV are to be displayed on the process display unit, HART1 and HART3 must be activated. The values can either be shown alternately on the process display unit or one value is displayed continuously and the other values are only shown by pressing '+' or '–'. The switching time can be configured in the "EXPRT" – "SYSTM" – "TOGTM" menu. 3.2.1 RIA15 as a remote display and for operation of the Micropilot FMR20 The Micropilot is a "downward-looking" measuring system, operating based on the time-of- flight method (ToF). It measures the distance from the reference point (process connection) to the product surface. Radar impulses are emitted by an antenna, reflected off the product surface and received again by the radar system. The FMR20 can be adjusted under the "SETUP → LEVEL" menu (see operating matrix). The measured value displayed corresponds to the distance measured or, if linearization is enabled, to a percentage value. D Q R 100% 0% D L F E A0028409  1 Setup parameters of the Micropilot E Empty calibration (= zero) F Full calibration (= span) D Measured distance L Level (L = E - D) Q Flow rate at measuring weirs or channels (calculated from the level using linearization)

electronics. A microprocessor evaluates the signal and identifies the level echo caused by the reflection of the radar impulse at the product surface. This clear signal detection system benefits from over 30 years' experience with time-of-flight procedures. The distance D to the product surface is proportional to the time of flight t of the impulse: D = c · t/2, where c is the speed of light. Based on the known empty distance E, the level L is calculated: L = E – D Output The Micropilot is adjusted by entering the empty distance E (= zero point) and the full distance F (= span). • Current output: 4 to 20 mA • Digital output (HART, SmartBlue): 0 to 10 m (0 to 33 ft) or 0 to 20 m (0 to 66 ft) depending on antenna version The RIA15 can be used as a local display unit and for the basic configuration of the Micropilot FMR20 radar level sensor via HART®. 1 4 5 2 3 A0030964  2 Remote operation of the FMR20 via the RIA15 1 PLC 2 Transmitter power supply, e.g. RN221N (with communication resistance) 3 Connection for Commubox FXA195 and Field Communicator 375, 475 4 RIA15 loop-powered process display unit 5 Transmitter For this, the RIA15 can either be ordered together with the FMR20 via the FMR20 product structure, or the RIA15 must be ordered separately with option 3 "4 to 20 mA current signal + HART + FMR20 basic configuration" in feature 030 "Input". FMR20 product structure, feature 620 "Accessory enclosed": • Option R4: "Remote display RIA15, non-hazardous" • Option R5: "Remote display RIA15, hazardous" RIA15 product structure, feature 030 "Input": Option 3: "4 to 20 mA current signal + HART + FMR20 basic setting" The following parameters can then be configured at the FMR20 via the 3 operating keys on the front of the RIA15: • Unit • Empty and full calibration • Mapping area if the measured distance does not match the actual distance Further information on the operating parameters →  39

channel can be used for measuring and displaying HART® values for a connected sensor/ actuator. In this case, a HART® device can be directly connected to the process display unit in a point-to-point connection or the process display unit can be incorporated in a HART® multidrop network. The RIA15 can be used as a local display unit and for the basic configuration of the Micropilot FMR20 radar level sensor via HART®.

device, and on the rear of the housing in the case of the panel-mounted device. Ord. cd.: XXXXXXXX Ser. no.: XXXXXXXXXXXXXXXXX Ext. ord. cd.: RIA15-XXXXXXX Ta= -40...+60°C Front IP67 Type 4X Encl. Loop powered 4...20 mA RIA15 Made in Germany 2012 D-87484 Nesselwang 1 2 4 5 6 7 Class2 circuit or SELV circuit 3 9 8 A0019608  3 Nameplate of the process display unit (example) 1 Order code of the device 6 Device designation 2 Serial number of the device 7 Approvals (optional) 3 Extended order code of the device 8 Input signal 4 Manufacturer's address 9 Housing degree of protection 5 Ambient temperature range 4.2 Scope of delivery The scope of delivery of the device comprises: • Panel-mounted device – Process display unit – Brief Operating Instructions – Ex Safety Instructions (optional) – Fastening fixtures – HART® communication resistance module (optional) • Field device – Process display unit – Brief Operating Instructions – Ex Safety Instructions (optional) – Fastening fixtures for wall/pipe mounting (optional) – HART® communication resistance module (optional) – Weather protection cover (optional) 4.3 Certificates and approvals An overview of all available approvals is provided in the "Technical data" section. →  54. 4.3.1 CE mark The measuring system meets the legal requirements of the applicable EC guidelines. These are listed in the corresponding EC Declaration of Conformity together with the standards applied. Endress+Hauser confirms successful testing of the device by affixing to it the CE mark.

confirms the successful testing of the product by affixing the EAC mark. 4.4 HART® protocol certification The RIA15 is registered by the HART® Communication Foundation. The device fulfills the requirements of HCF Specification, Revision 7.1. This version is downwards compatible with all sensors/actuators with HART® versions ≥ 5.0.

Compliance with the permitted environmental and storage conditions is mandatory. Precise specifications for this are provided in the "Technical data" . 5.1.1 Incoming acceptance On receipt of the goods, check the following points: • Is the packaging or the content damaged? • Is the delivery complete? Compare the scope of delivery against the information on your order form. 5.1.2 Transport and storage Please note the following: • Pack the device so that is protected against impact for storage and transport. The original packaging provides optimum protection. • The permitted storage temperature is –40 to +85 °C (–40 to +185 °F); it is possible to store the device at borderline temperatures for a limited period (48 hours maximum). 5.2 Installation conditions At temperatures below –25 °C (–13 °F) the readability of the display can no longer be guaranteed. 5.2.1 Display unit in the panel-mount housing Permitted ambient temperature range –40 to 60 °C (–40 to 140 °F), horizontal orientation. IP65 protection at front, IP20 at rear See "Technical data" section . 5.2.2 Display unit in the field housing Permitted ambient temperature range –40 to 60 °C (–40 to 140 °F). IP67 protection, NEMA 4x (aluminum housing). See "Technical data" section . 5.3 Installation instructions For the dimensions of the device, see "Technical data" →  53.

Installation in a panel with a panel cutout 92x45 mm (3.62x1.77 in), max. panel thickness 13 mm (0.51 in). 1. Slot the device into the panel cutout from the front. 2. Fit the mounting clips on the side of the housing and tighten the threaded rods. 5.3.2 Field housing Pipe mounting (with optional mounting kit) The device can be mounted on a pipe with a diameter of up to 50.8 mm (2 in) with the mounting kit (optionally available).

1 Mounting plate for pipe/wall mounting 2 Weather protection cover (optional) 1. Release the 4 housing screws 2. Open the housing 3. Secure the mounting plate to the rear of the device with 4 screws supplied. The optional weather protection cover can be secured between the device and the mounting plate. 4. Guide the two gripper clamps through the mounting plate, fit them around the pipe and tighten. Wall mounting With optionally available mounting kit.

1. Use the mounting plate as a stencil for 2 6 mm (0.24 in) bore holes, 82 mm (3.23 in) apart, and secure the plate on the wall with 2 screws (not supplied). 2. Open the housing. 3. Secure the display unit on the mounting plate with the 4 screws supplied. 4. Close the cover and tighten the screws. Without a mounting kit. 1. Open the housing. 2. Use the device as a stencil for 4 6 mm (0.24 in) bore holes, 99 mm (3.9 in) apart on the horizontal plane, 66 mm (2.6 in) apart on the vertical plane. 3. Secure the display unit on the wall with 4 screws. 4. Close the cover and tighten the housing screws. 5.3.3 Mounting the optional HART® communication resistance module Panel housing The HART® communication resistance module is available as an accessory, see section Accessories →  49.

1. Unplug the pluggable terminal block. 2. Plug terminal block into the suitable plug-in position on the HART® communication resistance module. 3. Plug the HART® communication resistance module into the plug-in position on the housing. Field housing The HART® communication resistance module is available as an accessory, see section Accessories →  49. A0020844  8 Mounting the optional HART® communication resistance module 1. Unplug the pluggable terminal block. 2. Plug terminal block into the suitable plug-in position on the HART® communication resistance module. 3. Plug the HART® communication resistance module into the plug-in position in the housing. 5.4 Post-installation check 5.4.1 Display unit in the panel-mount housing • Is the seal undamaged? • Are the mounting clips securely fastened on the housing of the device? • Are the threaded rods properly tightened? • Is the device located in the center of the panel cutout?

• Is the seal undamaged? • Is the housing firmly screwed to the mounting plate? • Is the mounting bracket firmly secured on the wall/pipe? • Are the housing screws firmly tightened?

‣ The entire connection of the device must take place while the device is de-energized. Only certified devices (optionally available) may be connected in the hazardous area ‣ Observe corresponding notes and wiring diagrams in the Ex-specific supplement to these Operating Instructions. If you have any questions, please do not hesitate to contact your E+H representative. NOTICE SELV/Class 2 device ‣ The device may only be powered by a power unit with an energy-limited circuit in accordance with IEC 61010-1: 'SELV or Class 2 circuit'. Device destroyed if current too high ‣ Do not operate the device at a voltage source without a current limiter. Instead, operate the device only in the current loop with a transmitter. • Panel housing: The terminals are located on the rear of the housing. • Field housing: The terminals are located inside the housing. The device has two M16 cable entries. The housing must be opened for wiring purposes. Operation of the spring terminals A0020848  9 Operation of the spring terminals 1. When using rigid cables with a ferrule, just plug the cable into the terminal. No tools required. With flexible wires the spring mechanism of the terminal must be operated as shown in step 2. 2. In order to loosen the cable, push the spring mechanism in completely using a screwdriver or other suitable tool and pull out the cable. 6.1 Quick wiring guide Terminal Description + Positive connection, current measurement - Negative connection, current measurement (without backlighting) LED Negative connection, current measurement (with backlighting) Auxiliary terminals (electrically connected internally) Functional grounding: • Panel-mounted device: Terminal on the rear of the housing • Field device: Terminal in the housing

The following diagrams show how the process display unit is connected in 4 to 20 mA mode. Connection without backlighting Connection with backlighting Connection with transmitter power supply and transmitter LED - + - - + + I Y 1 A0017704 1 Transmitter power supply + + I Y 1 - - LED - + A0017705 1 Transmitter power supply Connection with transmitter power supply and transmitter using the auxiliary terminal - - + + I Y 1 LED - + A0017706 1 Transmitter power supply + + I Y 1 - - LED - + A0017707 1 Transmitter power supply Connection with PLC and transmitter - - + + I Y 1 LED - + A0019720 1 PLC - - + + I Y 1 LED - + A0019721 1 PLC Connection without transmitter power supply directly in the 4 to 20 mA circuit + 2 - I Y LED - + A0017708 2 4 to 20 mA power source + 2 - I Y LED - + A0017709 2 4 to 20 mA power source 6.3 Connection in HART mode The following diagrams show how the process display unit is connected in HART mode. 6.3.1 HART® connection NOTICE Undefined behavior due to incorrect wiring of an actuator ‣ When installing the process display unit together with an actuator, the Operating Instructions for the actuator must be followed! The HART® communication resistance of 230 Ω in the signal line is always necessary in the case of a low-impedance power supply. It must be installed between the power supply and the display unit.

2-wire sensor with process display unit and transmitter power supply, without backlighting Y I Rs DC 1 2 3 LED - + A0019567 1 Sensor 2 Power supply 3 HART® resistance 2-wire sensor with process display unit and transmitter power supply, with backlighting Y I Rs DC 1 2 3 LED - + A0019568 1 Sensor 2 Power supply 3 HART® resistance 4-wire sensor with process display unit and transmitter power supply, without backlighting 1 3 Y I 2 4 LED - + A0019570 1 HART® resistance 2 Current measuring device (optional) 3 Sensor 4 Power supply 4-wire device 4-wire sensor with process display unit and transmitter power supply, with backlighting 1 3 Y I 2 4 LED - + A0019571 1 HART® resistance 2 Current measuring device (optional) 3 Sensor 4 Power supply 4-wire device

Current output with process display unit and actuator (e.g. actuator valve), without backlighting 1 3 2 LED - + A0019573 1 Actuator 2 Power supply 4-wire device 3 Current output Current output with process display unit and actuator (e.g. actuator valve), with backlighting 1 3 2 LED - + A0019574 1 Actuator 2 Power supply 4-wire device 3 Current output Multi-drop 2-wire sensors with process display unit and transmitter power supply Rs DC 1 2 3 Y I LED - + Y I Y I A0019575 1 Sensors 2 Power supply 3 HART® resistance Multi-drop 2-wire sensors with process display unit and transmitter power supply, with backlighting Rs DC 1 2 3 I Y Y I Y I LED - + A0019722 1 Sensors 2 Power supply 3 HART® resistance

2-wire sensor with process display unit and active barrier RN221N as transmitter power supply Y I 1 23 O+ O- RN221N Rs R LED - + A0019576 1 Sensor 2 HART® primary master 3 HART® resistance Optional HART® communication resistance module A HART® communication resistance module is available as an accessory, see the "Accessories" section →  49. Please refer to the section on installation when mounting the HART® communication resistance module →  18 Wiring Circuit diagram / Description 2-wire sensor with process display unit and transmitter power supply, without backlighting 1 LED - + 3 2 Y I Rs DC A0020839 1 HART® communication resistance module 2 Sensor 3 Power supply 2-wire sensor with process display unit and transmitter power supply, with backlighting 1 3 2 Y I Rs DC LED - + A0020840 1 HART® communication resistance module 2 Sensor 3 Power supply

4-wire sensor with process display unit and transmitter power supply, without backlighting 1 3 Y I 2 LED - + A0020837 1 HART® communication resistance module 2 Power supply 4-wire device 3 Sensor 4-wire sensor with process display unit and transmitter power supply, with backlighting 1 3 Y I 2 LED - + A0020838 1 HART® communication resistance module 2 Power supply 4-wire device 3 Sensor Configuration of HART® devices The process display unit cannot be used to configure connected HART® devices. Configuration is done using the Field Xpert SFX100 device configurator, for example. 1 2 3 5 4 A0019580  10 Configuration of HART® devices; example TMT162 1 HART® primary master (e.g. PLC) 2 HART® resistance 3 RIA15 process display unit 4 HART® handheld, e.g. Field Xpert SFX100 5 Sensor with HART® transmitter, e.g. TMT162

An additional current-limited current source is required to implement switchable backlighting, e.g. active barrier RN221N. This current source is used to supply the LED backlighting of up to 7 RIA15 process display units without causing an additional voltage drop in the measurement loop. The backlighting can be switched on and off using an external switch. The following shows connection examples for the hazardous area. Wiring is similar for the non-hazardous area; however, it is not necessary to use Ex-certified devices. 6.4.1 Connection diagram for one process display unit LED - + - + I Y 1 + - O- L N PE O+ 7 6 5 + - O- L N PE O+ 8 4 2 3 9 10 A0028248 1 Process display unit RIA15 2 3-wire connector, e.g. WAGO 221 series 3 2-wire sensor 4 Terminal block on top-hat rail 5 Active barrier, e.g. RN221N 6 4 to 20 mA output to the control unit 7 Power supply 8 Current source, e.g. RN221N 9 Switch to activate backlighting 10 Power supply

LED - + - + I Y 1 + - O- L N PE O+ 7 6 5 + - O- L N PE O+ 9 8 10 4 2 3 LED - + - + I Y LED - + - + I Y + - O- L N PE O+ + - O- L N PE O+ 11 A0028249 1 Process display unit RIA15 2 3-wire connector, e.g. WAGO 221 series 3 2-wire sensor 4 Terminal block on top-hat rail 5 Active barrier, e.g. RN221N 6 4 to 20 mA output to the control unit 7 Power supply 8 Current source, e.g. RN221N 9 Switch to activate backlighting 10 Power supply 11 Can be extended to 7 devices

TX20 2. 3. 4. 1. A0017830  11 Inserting the cable, field housing Inserting the cable, field housing, connection without transmitter power supply (example) 1. Release the housing screws 2. Open the housing 3. Open the cable gland (M16) and insert the cable 4. Connect the cable incl. functional grounding and close the cable gland 6.6 Shielding and grounding Optimum electromagnetic compatibility (EMC) can only be guaranteed if the system components and, in particular, the lines are shielded and the shield forms as complete a cover as possible. A shield coverage of 90% is ideal. • To ensure an optimum EMC protective effect when communicating with HART®, connect the shield as often as possible to the reference ground. • For reasons of explosion protection, you should refrain from grounding however. To comply with both requirements, three different types of shielding are possible when communicating with HART®: • Shielding at both ends • Shielding at one end on the feed side with capacitance termination at the field device • Shielding at one end on the feed side Experience shows that the best results with regard to EMC are achieved in most cases in installations with one-sided shielding on the feed side (without capacitance termination at the field device). Appropriate measures with regard to input wiring must be taken to allow unrestricted operation when EMC interference is present. These measures have been taken into account for this device. Operation in the event of disturbance variables as per NAMUR NE21 is thus guaranteed. Where applicable, national installation regulations and guidelines must be observed during the installation! Where there are large differences in potential between the individual grounding points, only one point of the shielding is connected directly with the reference ground. In systems without potential equalization,

example at the supply unit or at safety barriers. NOTICE If the shielding of the cable is grounded at more than one point in systems without potential matching, power supply frequency equalizing currents can occur that damage the signal cable or have a serious effect on signal transmission. ‣ In such cases the shielding of the signal cable is to be grounded on one side only, i.e. it must not be connected to the ground terminal of the housing. The shield that is not connected should be insulated! 6.7 Connecting to functional grounding 6.7.1 Panel-mounted device For EMC reasons, the functional grounding should always be connected. When the device is used in the hazardous area (with optional Ex approval) the connection is obligatory. 1 A0018894  12 Functional grounding terminal on panel-mounted device 6.7.2 Field device For EMC reasons, the functional grounding should always be connected. When used in the hazardous area (with optional Ex approval), the connection is obligatory and the field housing must be grounded via a grounding screw fitted on the outside of the housing. TX20 A0018895  13 Functional grounding terminal in field housing

6.8 Degree of protection 6.8.1 Field housing The devices meet all the requirements of IP67. It is absolutely essential to comply with the following points to ensure this protection is guaranteed after mounting or servicing the device: • The housing seal must be clean and undamaged when inserted into the groove. The seal must be cleaned, dried or replaced if necessary. • The cables used for connection must be of the specified outside diameter (e.g. M16 x 1.5, cable diameter 5 to 10 mm (0.2 to 0.39 in)). • Mount the measuring device in such a way that the cable entries point downwards. • Replace unused cable entries with dummy plugs. • The housing cover and the cable entries must be firmly tightened. 6.8.2 Panel housing The front of the device meets the requirements of IP65. It is absolutely essential to comply with the following points to ensure this protection is guaranteed after mounting or servicing the device: • The seal between the front of the housing and the panel must be clean and undamaged. The seal must be cleaned, dried or replaced if necessary. • The threaded rods of the panel mounting clips must be firmly tightened. 6.9 Post-connection check Device condition and specifications Notes Are cables or the device damaged? Visual inspection Electrical connection Notes Does the supply current match the specifications on the nameplate? - Are the cables, incl. functional grounding, connected correctly and strain-relieved? - Field housing: Are the cable glands securely closed? -

1 Symbol: operating menu disabled 2 Symbol: error 3 Symbol: warning 4 Symbol: HART® communication active 5 Operating keys "-", "+", "E" 6 14-segment display for unit/TAG 7 Bar graph with indicators for under range and over range 8 5-digit 7-segment display for measured value, digit height 17 mm (0.67 in) The device is operated using three operating keys on the front of the housing. The device setup can be disabled with a 4-digit user code. If the setup is disabled, a padlock symbol appears on the display when an operating parameter is selected. A0017716 Enter key; calling up the operating menu, confirming the option/setting parameters in the operating menu A0017714 Selecting and setting/changing values in the operating menu; pressing the '-' and '+' keys simultaneously takes the user back up a menu level. The configured value is not saved. A0017715 7.1 Operating functions The operating functions of the process display unit are divided into the following menus. The individual parameters and settings are described in the "Commissioning" section. If the operating menu is disabled by means of a user code, the individual menus and parameters can be displayed but not changed. To change a parameter, the user code must be entered. As the display unit can only display digits in the 7-segment display and not alphanumeric characters, the procedure for number parameters is different to that for text parameters. If the operating position contains only numbers as parameters, the operating position is displayed in the 14-segment display and the configured parameter is displayed in the 7-segment display. To edit, press the 'E'-button followed by the user code. If the operating position contains text parameters, only the operating position is initially displayed in the 14-segment display. If the 'E' button is pressed again, the configured parameter is displayed in the 14-segment display. To edit, press the '+' button followed by the user code.

Diagnostics (DIAG) Device information, display of error messages Expert (EXPRT) Expert settings for the device setup →  37 The Expert menu is protected from editing by an access code (default 0000).

Perform the final checks before commissioning the device: • Checklist for "post-installation check" →  19. • Checklist for "post-connection check" →  31. The device starts after being connected to the 4 to 20 mA/HART® circuit. The firmware version appears on the display during the start-up phase. When the device is being commissioned for the first time, program the setup in accordance with the descriptions in the Operating Instructions. If you are commissioning a device that is already configured or preset, the device immediately starts measuring the current or making a HART® request as defined in the settings. The values of the currently activated process variables appear in the display. Devices with the "Level" option for the FMR20 are preconfigured as follows at the factory: • Operating mode: HART mode • Decimal point HART: 2 decimal places • Display HART3: Off • Display HART4: Off Remove the protective film from the display as this would otherwise affect the readability of the display. 8.2 Operating matrix Setup menu (SETUP) Parameters Values visible at Description LEVEL FMR20 option This menu contains the parameters for configuring the FMR20 level transmitter. The individual parameters are described in the section "Operating matrix in conjunction with the Micropilot FMR20" →  39. MODE 4-20 HART Select the operating mode for the display unit 4-20: The circuit's 4 to 20 mA signal is displayed HART: Up to four HART® variables (PV, SV, TV, QV) of a sensor/actuator in the loop can be displayed. For the "Level" option for FMR20: default = HART DECIM 0 DEC 1 DEC 2 DEC 3 DEC 4 DEC MODE = 4-20 Number of decimal places for display For the "Level" option for FMR20: default = 2 DEC SC__4 Numerical value –19 999 to 99 999 Default: 0.0 MODE = 4-20 5-digit value (number of decimal places as configured under DECIM) for scaling the measured value at 4 mA Example: SC__4 = 0.0 Þ 0.0 displayed at 4 mA measuring current The unit selected under UNIT is used to display the value. SC_20 Numerical value –19 999 to 99 999 Default: 100.0 MODE = 4-20 5-digit value (number of decimal places as configured under DECIM) for scaling the measured value at 20 mA Example: SC_20 = 100.0 Þ 100.0 displayed at 20 mA measuring current The unit selected under UNIT is used to display the value.

Parameters Values visible at Description UNIT % °C °F K USER MODE = 4-20 Use this function to select the unit for displaying the value. If "USER" is selected, a user-defined unit can be entered in the TEXT parameter. TEXT Customized text, 5-digit MODE = 4-20 User-defined unit, only visible if the "USER" option has been selected under UNIT. SCAN NO YES MODE = HART Select "YES" to start scanning. All addresses are then automatically scanned once in a HART® application until a sensor/actor is found. Scanning runs from 0 to 63. Only addresses up to 15 are permitted for HART 5. Once the address of the sensor/actor whose values are to be displayed is found, the address must be confirmed by pressing the 'E' key. This address is adopted and is used even after a device restart. By pressing the '+' or '–' key, it is possible to search for other addresses. Pressing '+'- and '-' simultaneously will cancel scanning. If "NO" is selected, scanning is not active. The address of the sensor/actor, whose values are to be displayed on the process display unit, must be configured manually using the operating keys. ADDR Numerical value 0 to 63 Default: 0 MODE = HART Use this function to enter manually the address of the HART® sensor/actor whose values are to be displayed.  If the address of the HART® slave is changed, it must also be changed on the process display unit. To do this, either enter the address manually or search using SCAN mode. MTYPE PRIM SEC MODE = HART Use this function to select the HART® master type: PRIM = Primary master SEC = Secondary master HART1-HART4 MODE = HART Use this function to select which HART® value of a sensor/actor (PV, SV, TV, QV) should be activated and configured: HART1 = PV HART2 = SV HART3 = TV HART4 = QV Press the E key to open the configuration submenu. DISP1 –DISP4 OFF MAN AUTO MODE = HART Use this function to select how or whether the value should be displayed. OFF: Value is not displayed MAN: You can manually scroll through activated HART® values by pressing '+' or '–'. Otherwise the values are not displayed. If all four HART® values (HART1 to HART4) are set to "MAN", HART1 (PV) is displayed if you do not scroll manually through the values. AUTO: Activated HART® values are shown alternately (switching time can be configured in the EXPRT menu under "TOGTM"). If one value is set to AUTO, this value is displayed continuously on the device. For the "Level" option for FMR20: default for DISP3 and DISP4 = OFF DEC1 – DEC4 0 DEC 1 DEC 2 DEC 3 DEC 4 DEC MODE = HART Number of decimal places

Parameters Values visible at Description BGLO1- BGLO4 Numerical value –19 999 to 99 999 Default: 0.0 MODE = HART 5-digit value (number of decimal places as configured under DEC1-DEC4) for scaling the lower range of the bar graph for HART1 - HART4. The bar graph is disabled if BGLOx and BGHIx are set to "0.0". BGHI1-BGHI4 Numerical value –19 999 to 99 999 Default: 0.0 MODE = HART 5-digit value (number of decimal places as configured under DEC1-DEC4) for scaling the upper range of the bar graph for HART1 - HART4. The bar graph is disabled if BGLOx and BGHIx are set to "0.0". UNIT1-UNIT4 HART % °C °F K USER MODE = HART Use this function to select the unit for displaying the HART® value. If "HART" is selected, the unit configured on the sensor/ actor is automatically adopted for the relevant HART® value. Only units with a maximum of 5 characters can be shown. Longer units are displayed as unit code "UCxxx". The table in the HART® communication section at the end of these Operating Instructions provides an overview of the units that can be displayed. If "USER" is selected, a user-defined unit can be entered in the TEXT1-TEXT4 parameter. TEXT1-TEXT4 Customized text, 5-digit MODE = HART User-defined unit. Only visible if the "USER" option has been selected under UNIT Diagnostics menu (DIAG) Parameters Values Description AERR Read only The current diagnostic message appears on the display. If two or more messages occur simultaneously, the message with the highest priority is shown on the display. LERR Read only The last diagnostic message with the highest priority appears on the display. FWVER Read only The firmware version appears on the display. TERR 1) Read only Displays the diagnostic code/error code pending at Endress+Hauser HART® transmitters/sensors. Please refer to the Operating Instructions of the relevant Endress+Hauser transmitter/sensor for additional information about the meaning of the diagnostic number and the remedial measures. 1) For Endress+Hauser transmitters/sensors with HART® communication, the diagnostic code/error code currently pending can be queried via Endress+Hauser command #231. This command is only supported by Endress+Hauser transmitters/sensors. Therefore, the TERR parameter is not visible if third-party devices are connected to the RIA15.

In addition to all the parameters in the Setup menu, the Expert menu also contains the parameters described in this table. If you call up the Expert menu, you will be asked to enter the user code (UCODE, default: 0000). Parameters Values visible at Description LEVEL MODE = HART This menu contains the parameters for configuring the FMR20 level transmitter. The Level menu and all the related submenus are only visible if the RIA15 has been ordered with the "FMR20 basic configuration" option. The basic settings can be made at the Micropilot FMR20 radar level sensor via the RIA15 using this menu. Description of the individual parameters →  40 SYSTM UCODE Numerical value 0000 to 9999 Default: 0000 4-digit user code With the user code it is possible to protect the device setup from unauthorized modifications. If the setup is disabled, a padlock symbol appears on the display when an operating parameter is selected. The user code is not active with the default setting "0000". This means that setup parameters can be changed without entering the code. The code must always be entered for the Expert menu, even for the default setting. FRSET NO YES Resets the device setup. The values are reset to the preset values for preconfigured devices, and to the default values for all other devices. Select "YES" and press "E" by way of confirmation to reset the device. TOGTM 5 10 15 20 MODE = HART Use this function to select the switching time in seconds between HART® values if "AUTO" was selected in the DISP1-DISP4 menu. INPUT The following parameters are available in addition to the parameters from the Setup menu.

In addition to all the parameters in the Setup menu, the Expert menu also contains the parameters described in this table. If you call up the Expert menu, you will be asked to enter the user code (UCODE, default: 0000). Parameters Values visible at Description CURV LINAR SQRT Use this to select the calculation function for the process value (for MODE = 4-20) LINAR (scaling with SC__4 and SC_20): Process value = (mA value - 4)/16 * (SC_20 - SC__4) + SC__4 + OFFST SQRT (square root extraction and scaling): Process value = Square root((mA value - 4)/16) * (SC_20 - SC__4) + SC__4 + OFFST Negative values when calculating the square root are set to 0. Use this to select the calculation function for the HART1 value (PV) (for MODE = HART) LINAR: HART1 value (PV) = "exported PV value" * FACT1 + OFFS1 SQRT (square root extraction and scaling with BGLO1 and BGHI1): HART1 value (PV) = (square root("exported percentage PV value" / 100) * (BGHI1 - BGLO1) + BGLO1) * FACT1 + OFFS1 Negative values when calculating the square root are set to 0. Example for SQRT: • exported percentage PV value = 50 • BGLO1 = 100.0 • BGHI1 = 200.0 • FACT1 = 1 • OFFS1 = 0.0 HART1 value (PV) = (square root(50/100) * (200 - 100) + 100) * 1 + 0 = 170.7 NAMUR NO YES MODE = 4-20 Use this function to define the error limits in accordance with standard NAMUR NE 43 →  41 RNGLO Numerical value NAMUR = NO Lower range limit. An error message is displayed if the measured current falls below this limit. RNGHI Numerical value NAMUR = NO Upper range limit. An error message is displayed if the measured current exceeds this limit. OFFST Numerical value –19 999 to 99 999 MODE = 4-20 Use this function to enter an offset value to display the measured value. FACT1-FACT4 1E-6 1E-5 1E-4 1E-3 1E-2 1E-1 1 1E1 1E2 1E3 1E4 1E5 1E6 MODE = HART As the display is limited to 5 characters, the measured value must be multiplied by a factor if necessary. For example: conductivity 0.00003 S multiplied by factor 1E6 Þ 30.000 µS.  If a factor is used, it is recommended to set the unit under UNIT1-4 to "UNIT" and to enter user-defined text because the unit automatically delivered via HART® no longer matches the displayed value. OFFS1-OFFS4 Numerical value –19 999 to 99 999 MODE = HART Use this function to enter an offset value to display the HART1-HART4 measured value. If a factor is used, the offset is added to the multiplied value (displayed value = measured value*factor + offset)

In addition to all the parameters in the Setup menu, the Expert menu also contains the parameters described in this table. If you call up the Expert menu, you will be asked to enter the user code (UCODE, default: 0000). Parameters Values visible at Description EXP1-EXP4 YES NO MODE = HART Measured value display for measured values greater than 99999. • YES: If the display overruns, the measured value is displayed in exponential notation. • NO: Values with more than 5 digits are not displayed if the display overruns. Value is displayed with leading zeros. Example: Measured value: 130002.4 YES => 1.30E5 NO => 0002.4 DIAG CNTHI Read only MODE = HART Counter for the number of values transmitted via HART® , 5 top positions. The counter goes back to 0 after a device restart or scan. CNTLO Read only MODE = HART Counter for the number of values transmitted via HART® , 5 bottom positions. The counter goes back to 0 after a device restart or scan. RETRY Read only MODE = HART Counter for the number of retries to establish HART® communication. The counter goes back to 0 after a device restart or scan. FAIL Read only MODE = HART Counter for the number of failed attempts to establish HART® communication. The counter goes back to 0 after a device restart or scan. HLEVL Tx mV Read only MODE = HART Value of the peak-to-peak level of the transmission signal in mV Rx mV Read only MODE = HART Value of the peak-to-peak level of the received signal in mV NOISE Read only MODE = HART Displays the level of the interference signal LO = low interference signal MED = medium interference signal HI = high interference signal Rc Ω Read only MODE = HART Value of the total resistance in the HART® loop in Ohm 8.3 Operating matrix in conjunction with the Micropilot FMR20 In the HART mode, it is possible to use the RIA15 with the option for the FMR20 for the basic setting of the Micropilot FMR20 radar level sensor. Further information on the FMR20, see corresponding Operating Instructions →  BA01578F. FMR20 basic setting The RIA15 must be in the HART mode (MODE = HART) to make the basic settings. The LEVEL menu is not visible in the analog mode (MODE = 4-20). 1. Press the key.  The Setup menu opens. 2. Press the key.  The LEVEL submenu opens.

Setup -> Level (LEVEL) menu The Level menu is only visible if the RIA15 has been ordered with the "FMR20 basic setting" option and the display unit is operated in the HART mode (MODE = HART). The basic settings can be made at the Micropilot FMR20 radar level sensor via the RIA15 using this menu. Parameters Values visible at Description Level MODE = HART This menu contains the parameters for configuring the FMR20 level transmitter. The Level menu and all the related submenus are only visible if the RIA15 has been ordered with the "FMR20 basic configuration" option. The basic settings can be made at the Micropilot FMR20 radar level sensor via the RIA15 using this menu. UNIT m ft Select the displayed unit EMPTY Numerical value 0 to 100 m Default 2 m Empty calibration using keys -,+,E. Enter distance from process connection to min. level FULL Numerical value –19 999 to 99 999 Full calibration using keys -,+,E. Enter span from max. level to min. level DIST Measured value Measured value (measured distance) MAP DI OK To be selected if the distance displayed matches the actual distance. The device then records a mapping. MAN To be selected if the range of mapping is to be defined manually in the 'Mapping end point' parameter. A comparison between the distance displayed and the actual distance is not necessary in this case. Mapping becomes active after approx. 20 s. DI UN To be selected if the actual distance is unknown. No mapping is recorded. FACT To be selected if the present mapping curve (if one exists) is to be deleted. The device returns to the "Confirm distance" parameter and a new mapping can be recorded.

In Mode=4-20, the device can be configured for error limits as per NAMUR NE 43 →  37. The device displays an error message if a value is outside these limits. Current value Error Diagnostic code ≤ 3.6 mA Under range F100 3.6 mA < x ≤ 3.8 mA Unpermitted measured value S901 20.5 mA ≤ x < 21.0 mA Unpermitted measured value S902 > 21.0 mA Over range F100 9.2 Diagnostic messages If several errors are pending simultaneously, the device always displays the error with the highest priority. 1 = Highest priority Diagnostic number Short text Corrective measure Status signal Diagnostic behavior Priority Diagnostics for the sensor F100 Sensor error • Check electrical wiring • Check sensor • Check sensor settings F Alarm 6 S901 Input signal too small • Check transmitter output for defect and conformity error • Check transmitter for incorrect configuration S Warning 4 S902 Input signal too large S Warning 5 Diagnostics for the electronics F261 Electronics module Replace electronics F Alarm 1 F283 Memory content • Restart device • Reset device • Replace electronics F Alarm 2 F431 Factory calibration Replace electronics F Alarm 3 Diagnostics for the configuration M561 Display overshoot Check scaling M Warning 7 9.2.1 HART® diagnostic messages If several errors are pending simultaneously, the device always displays the error with the highest priority. 1 = Highest priority

• Check electrical wiring (HART®) • Check HART® function sensor/actor F Alarm 8 C970 Multi-master collision • Check additional master in the HART® network (e.g. handheld). • Check master setting (secondary/primary) C Check 9 F911 HART® slave device error (HART® Field Device Status) Check sensor/actor configuration or check for defects F Alarm 10 S913 HART® slave current output saturated (HART® Field Device Status) • Commissioning: Check sensor/actor for incorrect configuration, check sensor/actor configuration • Operation: Process parameter outside valid range S Warning 11 S915 HART® slave variable outside limits of range (HART® Field Device Status) S Warning 12 9.2.2 Other diagnostics in the HART® mode The process display unit has an integrated HART® diagnostics function. This function can be used to estimate the HART® signal level, the applicable communication resistance, and the noise of the network. The display unit can measure and display the following values: Parameters Description Display Tx mV Process display unit signal level mV Peak-to-peak level of the transmission signal Rx mV Slave signal level mV Peak-to-peak level of the received signal NOISE Weighting of the interference signal LO / MED / HI Categorization of the interference into low, medium or high Rc Ω Effective communication resistance Ω Resistance in Ohm The values can be called up in the EXPRT – DIAG – HLEVL menu. Measuring the transmission signal level "Tx": The Tx measurement can be used to assess the signal level of the transmission signal. Ideally this should be between 200 mV and 800 mV . The following values are displayed: Tx < 120 mV 120 to 200 mV 200 to 800 mV 800 to 850 mV > 850 mV Display LO Level in mV HI Bargraph < < 0 to 100 % > > Measuring the received signal level "Rx": The Rx measurement can be used to assess the signal level of the received signal. Ideally this should be between 200 mV and 800 mV . The Rx signal value that is displayed is a filtered signal level as assessed by the process display unit. In this way, the value measured externally and the displayed value can differ from one another, for example in the case of a trapezoidal received signal.

Rx < 120 mV 120 to 200 mV 200 to 800 mV 800 to 850 mV > 850 mV Display LO Level in mV HI Bargraph < < 0 to 100 % > > Measuring the "NOISE" interference signal: When the interference signal level is measured, the interference signal determined is divided into three categories: LO = low MED = medium HIGH = high The noise measurement is also a filtered signal level as assessed by the process display unit. The value measured externally and the displayed value can therefore differ from one another, depending on the frequency and the form of the signal. With low wanted signal levels (Rx, Tx), transmission errors can occur even if the interference signal level is low ("LO" displayed). Measuring the communication resistance "Rc": The "Rc" measurement can be used to determine the network resistance of the HART® network. Ideally this should be between 230 Ω and 600 Ω . The network resistance is the sum of the HART® communication resistance, the device's input resistance, the transmission line resistance and line capacitance. The following values are displayed: Rc < 100 Ω 100 to 230 Ω 230 to 600 Ω 600 to 1 000 Ω > 1 000 Ω Display LO Resistance in Ω HI Bargraph < < 0 to 100 % > > 9.2.3 Error messages via HART® response codes The transmitter responds with a response code for HART® commands #194 and #195. If the response code does not equal 0, the process display unit shows the response code briefly in the format rc xx. The meaning of the response codes is explained in the following table. For the response to the Endress+Hauser-specific HART® command #231, see the "Commissioning" section, "Diagnostics" menu →  36. Code Class Description Solution 0 Success No command-specific error - 2 Error Invalid selection Check HART® settings and firmware in the FMR20 3 Error Value too large Check basic settings →  40 4 Error Value too small Check basic settings →  40 5 Error Not enough data bytes received Check HART® settings and firmware in the FMR20 6 Error Device-specific command error Check HART® settings and firmware in the FMR20

mode Check write protection in the FMR20 14 Error Span too small Check basic settings →  40 16 Error Access restricted Check HART® settings and firmware in the FMR20 29 Error Invalid span Check basic settings →  40 32 Error Busy Try again 9.3 Spare parts 1 4 4 4 4 4 2 4 2 1 3 3 3 3 A0018882  16 Spare parts of the process display unit Item No. Description Order number 1 Mainboard HART® XPR0005-ABA 2 LCD module XPR0006-A1 3 Small parts set for panel-mount housing (5-pin plug-in terminal, seal on front frame, 2x fastening clip) XPR0006-A2 4 Small parts set for field housing (5-pin plug-in terminal, seal on cover, 2x cover hinge, grounding connection on bottom, cover screws, grounding lug) XPR0006-A3 9.4 Software history and overview of compatibility Release The firmware version on the nameplate and in the Operating Instructions indicates the device release: XX.YY.ZZ (example 1.02.01). XX Change to main version. No longer compatible. The device and Operating Instructions change. YY Change to functions and operation. Compatible. The Operating Instructions change. ZZ Fixes and internal changes. No changes to the Operating Instructions.

version Analog: BA01073K/09/EN/03.13 HART: BA01170K/09/EN/02.13 07/2013 1.02.00 HART® level measurement, only relevant for HART® version Analog: BA01073K/09/EN/04.13 HART: BA01170K/09/EN/03.13 11/2014 1.03.00 New EXP1-EXP4 parameter for HART® option, only relevant for HART® version Analog: BA01073K/09/EN/05.14 HART: BA01170K/09/EN/04.14 05/2016 1.04.00 New menus and parameters for "FMR20 basic configuration", only relevant for HART® version Analog: BA01073K/09/EN/06.15 HART: BA01170K/09/EN/05.15

the wrong measuring device has been delivered or ordered. Legal specifications require Endress+Hauser, as an ISO-certified company, to follow certain procedures when handling products that are in contact with the medium. To ensure safe, swift and professional device returns, please refer to the procedure and conditions for returning devices provided on the Endress+Hauser website at http://www.endress.com/support/return-material

waste. Comply with local disposal regulations.

+Hauser, are available for the device. Detailed information on the order code in question is available from your local Endress+Hauser sales center or on the product page of the Endress+Hauser website: www.endress.com. 13.1 Device-specific accessories Protective cover 298 (11.73) 201 (7.91) 63 (2.48) 205 (8.07) A0017731  17 Dimensions of protective cover, engineering unit mm (in) Mounting kit for wall/ pipe mounting 11.5 (0.45) 82 (3.23) 80 (3.15) 115 (4.53) A0017801  18 Dimensions of mounting bracket, engineering unit mm (in) HART® communication resistance module 54 (2.13) 31 (1.22) 24 (0.94) 22 (0.87) 8.1 (0.32) A0020858  19 Dimensions of communication resistance module, engineering unit mm(in) Active barrier RN221N 96 (3.78) 110 (4.33) 112 (4.41) 22.5 (0.89) A0028251  20 Dimensions of active barrier, engineering unit mm (in) For further information, see TI00073R/09/

• Calculation of all the necessary data for identifying the optimum measuring device: e.g. pressure loss, accuracy or process connections. • Graphic illustration of the calculation results Administration, documentation and access to all project-related data and parameters over the entire life cycle of a project. Applicator is available: • Via the Internet: https://wapps.endress.com/applicator • On CD-ROM for local PC installation. W@M Life cycle management for your plant W@M supports you with a wide range of software applications over the entire process: from planning and procurement, to the installation, commissioning and operation of the measuring devices. All the relevant device information, such as the device status, spare parts and device-specific documentation, is available for every device over the entire life cycle. The application already contains the data of your Endress+Hauser device. Endress +Hauser also takes care of maintaining and updating the data records. W@M is available: • Via the Internet: www.endress.com/lifecyclemanagement • On CD-ROM for local PC installation. FieldCare FDT-based plant asset management tool from Endress+Hauser. It can configure all smart field units in your system and helps you manage them. By using the status information, it is also a simple but effective way of checking their status and condition.  For details, see Operating Instructions BA00027S and BA00059S

≤ 1.0 V Device with HART® communication ≤ 1.9 V Display lighting additionally 2.9 V HART® input impedance Rx = 40 kΩ Cx = 2.3 nF Measured variable The input variable is either the 4 to 20 mA current signal or the HART® signal. HART® signals are not affected. Measuring range 4 to 20 mA (scalable, reverse polarity protection) Max. input current 200 mA 14.2 Power supply Supply voltage The display unit is loop-powered and does not require any external power supply. The voltage drop is ≤1 V in the standard version with 4 to 20 mA communication, ≤1.9 V with HART® communication and an additional 2.9 V if display lighting is used. 14.3 Performance characteristics Reference operating conditions Reference temperature 25 °C ±5 °C (77 °F ±9 °F) Humidity 20 to 60 % relative humidity Maximum measured error Input Range Measured error of measuring range Current 4 to 20 mA Over range up to 22 mA ±0.1 % Resolution Signal resolution > 13 bit Influence of ambient temperature < 0.02 %/K (0.01 %/°F) of measuring range Warm-up period 10 minutes

Required panel cutout 45x92 mm (1.77x3.62 in) Field housing The field housing version is designed for use in the field. The unit is mounted directly on a wall, or on a pipe with a diameter of up to 2 " with the aid of an optional mounting bracket. An optional weather protection cover protects the device from the effects of weather conditions. Orientation Panel housing The orientation is horizontal. Field housing The device must be mounted in such a way that the cable entries point downwards. 14.5 Environment Ambient temperature range –40 to 60 °C (–40 to 140 °F) At temperatures below –25 °C (–13 °F) the readability of the display can no longer be guaranteed. Storage temperature –40 to 85 °C (–40 to 185 °F) Climate class IEC 60654-1, Class B2 Altitude Up to 5 000 m (16 400 ft) above MSL in accordance with IEC61010-1 Degree of protection Panel housing IP65 at front, IP20 at rear Field housing IP67, NEMA4x (aluminum housing) Electromagnetic compatibility • Interference immunity: As per IEC61326 (Industrial Environments) / NAMUR NE 21 Maximum measured error < 1 % of MR • Interference emission: As per IEC61326, Class B Electrical safety Class III, overvoltage protection category II, pollution degree 2

Required panel cutout 45x92 mm (1.77x3.62 in), max. panel thickness 13 mm (0.51 in). Field housing 131 (5.16) 55.5 (2.19) 106.5 (4.19) 81.5 (3.21) mm (in) A0017722  22 Dimensions of the field housing incl. cable glands (M16) Weight Panel-mount housing 115 g (0.25 lb.) Field housing • Aluminum: 520 g (1.15 lb) • Plastic: 300 g (0.66 lb) Materials Panel-mount housing Front: aluminum Rear panel: polycarbonate PC

14.7 Operability Local operation The device is operated with the 3 operating keys on the front of the housing. The device setup can be disabled with a 4-digit user code. If the setup is disabled, a padlock symbol appears on the display when an operating parameter is selected. A0017716 Enter key; calling up the operating menu, confirming the option/setting parameters in the operating menu A0017714 Selecting and setting values in the operating menu; pressing the - and + keys simultaneously takes the user back up a menu level. The configured value is not saved (ESC) A0017715 14.8 Certificates and approvals CE mark The measuring system meets the legal requirements of the applicable EC guidelines. These are listed in the corresponding EC Declaration of Conformity together with the standards applied. Endress+Hauser confirms successful testing of the device by affixing to it the CE mark. EAC mark The product meets the legal requirements of the EEU guidelines. The manufacturer confirms the successful testing of the product by affixing the EAC mark. Ex approval Information about currently available Ex versions (ATEX, FM, CSA, etc.) can be supplied by your E+H Sales Center on request. All explosion protection data are given in a separate documentation which is available upon request. Functional safety SIL interference freeness according to EN61508 (optional) Marine approval GL marine approval (optional) HART® communication The display unit is registered by the HART® Communication Foundation. The device meets the requirements of the HART® Communication Protocol Specifications, May 2008, Revision 7.1. This version is downwards compatible with all sensors/actuators with HART® versions ≥ 5.0. Other standards and guidelines • IEC 60529: Degrees of protection provided by enclosures (IP code) • IEC 61010-1: 2010 cor 2011 Safety requirements for electrical equipment for measurement, control and laboratory use • NAMUR NE21, NE43 Association for Standards for Control and Regulation in the Chemical Industry

worldwide that has been tried and tested in the field and has an installed base of over 14 million devices. HART® is a "smart" technology which enables 4 to 20 mA analog transmission and digital communication simultaneously on the same two wires. The HART® protocol is based on the Bell 202 Frequency Shift Keying standard (FSK). A high-frequency wave (±0.5 mA) is superimposed on the low-frequency analog signal (4 to 20 mA). Maximum transmission distances depend on the network structure and ambient conditions. In many applications, the HART® signal is only used for configuration. However, using the appropriate tools, HART® can be used for device monitoring, device diagnostics and recording multivariable process information. The HART® communication protocol operates on the principle of master/slave. This means that each communication activity is initiated by the master during normal operation. Unlike other master/slave communication types, HART® allows two masters in one loop/ network: a primary master, e.g. the control system, and a secondary master, e.g. a handheld terminal. However, two masters of the same type are not permitted simultaneously. Secondary master devices can be used without affecting communication to and from the primary master. The field devices are generally the HART® slaves and respond to HART® commands from the master sent directly to them or to other devices. The HART® specification defines that master devices send voltage signals, while the sensors/actors (slaves) convey their messages using load-independent currents. The current signals are converted to voltage signals at the internal resistance of the receiver (at its load). To ensure reliable signal reception, the HART® protocol specifies the total load of the current loop - including the cable resistance - to be between minimum 230 Ω and maximum 600 Ω. If the resistance is less than 230 Ω, the digital signal is extremely damped or short-circuited. HART® communication resistance is thus always required in the 4 to 20 mA cable for a low-impedance supply. 15.1 HART® protocol command classes Each command is assigned to one of the following three classes: • Universal commands supported by all devices using the HART® protocol (e.g. device designation, firmware no. etc.) • Standard commands (common practice commands) Offer functions which are supported by many but not by all HART® instruments (e.g. read out value, parameter configuration etc.) • Device specific commands Provide access to device data which are not HART® standard but rather unique to a particular device type (e.g. linearization, extended diagnostic functions) The HART® protocol is an open communication protocol which interfaces the master device with the field device and can be implemented by any manufacturer and freely employed by the user. The required technical support is provided by the HART® Communication Foundation (HCF).

The process display unit uses the following HART® universal commands: Universal command number Response data used 0 Device unique identifier The device identifier provides information on the device and manufacturer; it cannot be changed. The response comprises a 12-byte device identifier. The following bytes are used by the process display unit: • Byte 0: Fixed value 254 • Byte 2: Device type ID, for slave addressing with long address form • Byte 3: Number of preambles • Byte 9-11: Device identification, for slave addressing with long address form 2 Read the primary process variable as current in mA and percentage of current range The response comprises 8 bytes: • Byte 0-3: Current in mA • Byte 4-7: Percentage value 3 Read the primary process variable as current in mA and four dynamic process variables The response comprises 24 bytes: The following bytes are used by the process display unit: • Byte 4: HART® unit code of the primary process variable • Byte 5-8: Primary process variable • Byte 9: HART® unit code of the secondary process variable • Byte 10-13: Secondary process variable • Byte 14: HART® unit code of the third process variable • Byte 15-18: Third process variable • Byte 19: HART® unit code of the fourth process variable • Byte 20-23: Fourth process variable The universal commands used by the process display unit must be supported by the slaves to ensure proper communication. 15.3 Field device status The field device status is contained in the second data byte of a slave/actor response. The following bits are analyzed by the process indicator and displayed as a diagnostic message: Bit mask Definition Used in the process display unit 0x80 Device error function – The device has detected a serious error or an error function which affects the operation of the device. Diagnostic F911 0x40 Configuration changed – A function was executed which has changed the device configuration. No 0x20 Cold start – The supply voltage has failed or the device has been reset. No 0x10 Additional status available – Additional status information is available via command #48. No 0x08 Loop current is fixed – The loop current is maintained at a fixed value and does not react to changes in the process. No 0x04 Loop current saturated – The loop current has reached its upper (or lower) limit point and cannot increase (decrease) further. Diagnostic S913 0x02 HART slave variable out of range. Diagnostic S915

from the slave in response to the universal command no. 3, is displayed as text, as listed in the following table (HCF-SPEC 183). However, since the field available for the unit is limited in the process indicator to a 5- digit, 14-segment display, it is not possible to display all units completely. Therefore, some units are displayed as unit codes in the form of UCxxx, where xxx is the unit code number. In addition, the operating parameter TEXT can be used to create and display an individual unit text. Unit code Description Display text 1 Inches of water at 68 °F inH2O 2 Inches of mercury at 0 °C inHG 3 Feet of water at 68 °F FTH2O 4 Millimeters of water at 68 °F mmH2O 5 Millmeters of mercury at 0 °C mmHG 6 Pounds per square inch PSI 7 Bar BAR 8 Millibars mBAR 9 Grams per square centimeter g/cm2 10 Kilograms per square centimeter UC010 11 Pascals Pa 12 Kilopascals kPa 13 Torr TORR 14 Atmospheres ATM 15 Cubic feet per minute UC015 16 Gallons per minute UC016 17 Liters per minute l/min 18 Imperial gallons per minute UC018 19 Cubic meters per hour m3/h 20 Feet per second FT/S 21 Meters per second m/S 22 Gallons per second gal/S 23 Million gallons per day MGD 24 Liters per second l/S 25 Million liters per day MLD 26 Cubic feet per second FT3/S 27 Cubic feet per day FT3/d 28 Cubic meters per second m3/S 29 Cubic meters per day m3/d 30 Imperial gallons per hour UC030 31 Imperial gallons per day UC031 32 Degrees Celsius °C 33 Degrees Fahrenheit °F 34 Degrees Rankine °R

mS/cm 67 Microsiemens per centimeter uS/cm 68 Newton N 69 Newton meters Nm 70 Grams per second g/S 71 Grams per minute g/min 72 Grams per hour g/h 73 Kilograms per second Kg/S 74 Kilograms per minute Kg/mi 75 Kilograms per hour Kg/h 76 Kilograms per day Kg/d 77 Metric tons per minute T/min

T/h 79 Metric tons per day T/d 80 Pounds per second lb/S 81 Pounds per minute lb/mi 82 Pounds per hour lb/h 83 Pounds per day lb/d 84 American tons per minute TnS/m 85 American tons per hour TnS/h 86 American tons per day TnS/d 87 British tons per hour Tnl/h 88 British tons per day Tnl/d 89 Deka therm dTh 90 Specific gravity units UC090 91 Grams per cubic centimeter g/cm3 92 Kilograms per cubic meter Kg/m3 93 Pounds per gallon lb/ga 94 Pounds per cubic feet lb/F3 95 Grams per milliliter g/ml 96 Kilograms per liter Kg/l 97 Grams per liter g/l 98 Pounds per cubic inch lb/ci 99 American tons per cubic yard UC099 100 Degrees Twaddell °Tw 101 Degrees Brix °BX 102 Degrees Baumé heavy UC102 103 Degrees Baumé light UC103 104 Degrees API °API 105 Percent solids per weight %wT 106 Percent solids per volume %VOL 107 Degrees Balling °bal 108 Proof per volume P/VOL 109 Proof per mass P/maS 110 Bushels bSh 111 Cubic yards YARD3 112 Cubic feet FEET3 113 Cubic inches inch3 114 Inches per second in/S 115 Inches per minute in/mi 116 Feet per minute F/min 117 Degrees per second DEG/S 118 Revolutions per second RPS 119 Revolutions per minute RPM 120 Meters per hour m/h

Nm3/h 122 Normal liters per hour Nl/h 123 Normal cubic feet per minute F3/mi 124 Barrel liquid (1 barrel = 31.5 U.S. gallons) UC124 125 Ounces ouncE 126 Foot Pound Force FTLBF 127 Kilowatts kW 128 Kilowatt hours kWh 129 Horse power HP 130 Cubic feet per hour FT3/h 131 Cubic meters per minute m3/mi 132 Barrels per second bbl/S 133 Barrels per minute bbl/m 134 Barrels per hour bbl/h 135 Barrels per day bbl/d 136 Gallons per hour gal/h 137 Imperial gallons per second UC137 138 Liters per hour l/h 139 Parts per million PPm 140 Mega calories per hour UC140 141 Mega joules per hour mJ/h 142 British Thermal Units per hour Btu/h 143 Degrees DEG 144 Radian rad 145 Millimeters of water at 60 °F inH2O 146 Micrograms per liter ug/l 147 Micrograms per cubic meter ug/m3 148 Percent consistency %con 149 Volume percent VOL% 150 Percent steam quality %SQ 151 Feet inch sixteenths UC151 152 Cubic feet per pound F3/lb 153 Picofarads PF 154 Milliliters per liter ml/l 155 Microliters per liter ul/l 156-159 Unit Code Expansion Tables UC156 - UC159 160 Percent Plato %P 161 Percent lower explosion level %LEL 162 Mega calories Mcal 163 Kilo ohms KOHM 164 Mega joules MJ 165 British Thermal Unit BTU

Nm3 167 Normal liters Nl 168 Normal cubic feet SCF 169 Parts per billion PPb 170 - 219 Unit Code Expansion Tables UC170 - UC219 220 - 234 not defined UC220 - UC234 235 Gallons per day gal/d 236 Hectoliters hl 237 Megapascals MPa 238 Inches of water at 4 °C inH2O 239 Millimeters of water 4 °C mmH2O 240 - 249 Manufacturer-specific UC240 - UC249 250 Not used ----- 251 None 252 Unknown UC252 253 Special UC253 15.5 HART® protocol connection types The HART protocol can be used for point-to-point or multidrop connections: Point-to-point (TYPICAL) In point-to-point mode, the HART® master is connected with exactly one HART® slave. A point-to-point connection should always be the preferred option where possible. Multidrop (measurement not by current, slower) In multidrop mode, several HART® devices are incorporated in a single current loop. Analog signal transmission is disabled in this case and data and measured values are exchanged exclusively via the HART® protocol. The current output of each connected device is set to a fixed value of 4 mA and is only used to supply current to two-wire devices. Several sensors/actors can be connected in parallel to one wire pair in multidrop mode. The master then differentiates between devices based on the configured addresses. Each device must have a different address. If more than 7 sensors/actors are connected in parallel an increased voltage drop occurs. The loop must not include a mixture of devices with an active current output (e.g. four- wire devices) and devices with a passive current output (e.g. two-wire devices). The HART® protocol is immune to interference. This means that, during operation, communication devices can be connected or removed without putting components of the other devices at risk or interrupting their communication.

Multivariable measuring devices can transmit up to four device variables via HART®: the Primary Variable (PV), Secondary Variable (SV), Tertiary Variable (TV) and Quaternary Variable (QV). Below you will find some examples of what default values can be set for these variables for various sensors/actors: Flowmeter, e.g. Promass: • Primary process variable (PV) -> Mass flow • Secondary process variable (SV) -> Totalizer 1 • Third process variable (TV) -> Density • Fourth process variable (QV) -> Temperature Temperature transmitter, e.g. TMT82: • Primary process variable (PV) -> Sensor 1 • Secondary process variable (SV) -> Device temperature • Third process variable (TV) -> Sensor 1 • Fourth process variable (QV) -> Sensor 1 For a level measuring device such as the Levelflex FMP5x, these four values can be as follows: Level measurement: • Primary process variable (PV) → Level linearized • Secondary process variable (SV) → Distance • Third process variable (TV) → Absolute echo amplitude • Fourth process variable (QV) → Relative echo amplitude Interface measurement: • Primary process variable (PV) → Interface • Secondary process variable (SV) → Level linearized • Third process variable (TV) → Upper interface thickness • Fourth process variable (QV) → Relative interface amplitude HART® actor, e.g. positioner: • Primary process variable (PV) -> Actuating value • Secondary process variable (SV) -> Valve set point • Third process variable (TV) -> Target position • Fourth process variable (QV) -> Valve position

CE-mark . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13, 54 D Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . 8 Diagnostic messages . . . . . . . . . . . . . . . . . . . . . . . . . 41 HART® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 HART® signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Document Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Document function . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 F Functional grounding Field device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Panel-mounted device . . . . . . . . . . . . . . . . . . . . . 30 H HART® communication resistance module . . . . . . . . . 25 HART® response codes . . . . . . . . . . . . . . . . . . . . . . . 43 M Mounting the HART communication resistance module Field housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Panel housing . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 O Operational safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 P Product safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 R Requirements for personnel . . . . . . . . . . . . . . . . . . . . . 7 Response codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 U Units Supported HART® units . . . . . . . . . . . . . . . . . . . . 57 W Workplace safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7