HK Instruments CDT-MOD-2000 Series Manuals
1 pdf manual(s) HK Instruments CDT-MOD-2000 Series for free download (Document Types: Installation instructions)
HK Instruments CDT-MOD-2000 Series Installation instructions [PDF] (4 pages)
- Identifier: id-1970093
- Brand: HK Instruments
- Device: CDT-MOD-2000 Series Transmitter
- Type: PDF
- Key Aspects: End-of-Life Handling and Disposal, Information on Regular Maintenance, Unpacking and Inspection Guidelines
- UPD Date: 18.03.2026
- Source File: 2317771.pdf
- Pages: 4
- Description: User setup guide for the HK Instruments CDT-MOD-2000 Series.
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Copyright HK Instruments 2021 www.hkinstruments.fi Installation version 7.0 2021 INSTALLATION INSTRUCTIONS CARBON DIOXIDE TRANSMITTERS CDT-MOD-2000 Series • READ THESE INSTRUCTIONS CAREFULLY BEFORE ATTEMPTING TO INSTALL, OPERATE OR SERVICE THIS DEVICE. •� Failure�to�observe�safety�information�and�comply�with� instructions�can�result�in�PERSONAL�INJURY,�DEATH�AND/OR� PROPERTY DAMAGE. •� To�avoid�electrical�shock�or�damage�to�equipment,�disconnect� power�before�installing�or�servicing�and�use�only�wiring�with� insulation�rated�for�full�device�operating�voltage. •� To�avoid�potential�fire�and/or�explosion�do�not�use�in�potentially� flammable�or�explosive�atmospheres. •� Retain�these�instructions�for�future�reference. •� This�product,�when�installed,�will�be�part�of�an�engineered� system�whose�specifications�and�performance�characteristics� are�not�designed�or�controlled�by�HK�Instruments.�Review� applications�and�national�and�local�codes�to�assure�that�the� installation�will�be�functional�and�safe.�Use�only�experienced�and� knowledgeable�technicians�to�install�this�device. Thank�you�for�choosing�an�HK�Instruments�CDT-MOD-2000�series� carbon�dioxide�transmitter.�The�CDT-MOD-2000�series�is�intended� for� use� in� commercial� environments� in� HVAC/R� applications.� The� CDT-MOD-2000�series�measures�carbon�dioxide�(CO2),�utilizing�the� industry� standard� NDIR� measurement� principle,� and� temperature� (T).�Optional�relative�humidity�(rH)�measurement�is�also�available�in� the�same�device.�The�CDT-MOD-2000�series�devices�are�available� with�large�touchscreen�display�making�the�configuration�of�the�de- vice�quick�and�easy.�Configuration�is�also�possible�via�Modbus�net- work. The�CDT-MOD-2000�series�transmitters�calibrate�themselves�auto- matically�using�ABCTM�logic.�The�ABCTM�logic�requires�that�the�space� in�which�the�transmitter�is�used�needs�to�to�be�unoccupied�for�four� hours�per�day�so�that�the�indoor�CO2�concentration�drops�to�the� outside�level.�CDT-MOD-2000-DC�is�a�dual�channel�model�with�a� measuring�channel�and�a�reference�channel�that�makes�a�continuous� comparison�and�the�necessary�adjustment�accordingly.�CDT-MOD- 2000-DC�is�also�suitable�for�buildings�that�are�continuously�occu- pied. •��humidity�in�various�industrial�applications •��temperatures�in�HVAC/R�environment •�CDT-MOD-2000-DC�series�devices�can�also�be�used�in�applications� where�there�is�a�constant�source�of�carbon�dioxide�present�(for� example�hospitals�and�greenhouses) SPECIFICATIONS Performance Measurement ranges: CO2:�400–2000�ppm Temperature:�0...50�°C Relative�humidity:�0–100�% Accuracy: CO2:�±40�ppm�+�2�%�of�reading,�DC�model:�75�ppm�or�10�%� of�reading�(whichever�is�greater) Temperature:�<0.5�ºC Relative�humidity:�±2...3�%�at�0...50�°C�and�10–90�%�rH Total�error�band�includes�accuracy,�hysteresis�and temperature�effect�over�5...50�°C�and�10–90%�rH. Technical Specifications Media compatibility: Dry�air�or�non-aggressive�gases Measuring units: ppm,�°C�and�%�rH Measuring element: CO2:�Non-dispersive�infrared�(NDIR) Temperature: Pt1000�(models�without�rH-measurement) � ���������Integrated�(models�with�rH-measurement) Relative�humidity:�Thermoset�polymer�capacitive�sensing� element Calibration: Automatic�self-calibration�ABC�LogicTM�or�continuous� comparison�(DC) Environment: Operating�temperature:�0...50�°C Storage�temperature:�-20...70�°C Humidity:�0�to�95�%�rH,�non�condensing Physical Dimensions: Case:�99�x�90�x�32�mm Weight: 150�g Mounting: 3�screw�holes�slotted,�3.8�mm Materials: Case: ABS Protection standard: IP20 Display (Optional) Touchscreen Size:�77.4�x�52.4�mm Electrical connections: Power�supply:�� � 5-screw�terminal�block � (24�V,�GND)� � 0.2–1.5�mm2��(12–24�AWG) Relay out: � 3-screw�terminal�block � (NC,�COM,�NO) � 0.2–1.5�mm2��(12–24�AWG) Electrical Input:�� 24�VAC�or�VDC,�±10�% � Current�consumption:�max�90�mA�(at�24�V)�+�� � 10�mA�for�each�voltage�output�or�20�mA�for�� � each�current�output Relay out: � SPDT�Relay,�250�VAC�/�30�VDC�/�6�A � Adjustable�switching�point�and�hysteresis One�analog�output�for�selected�media: 0/2*–10�VDC,�Load�R�minimum�1�kΩ *(2–10�VDC�display�models�only) or 4–20�mA,�maximum�load�500�Ω Communication Protocol:�MODBUS�over�Serial�Line Transmission�Mode:�RTU Interface:�RS485 Byte�format�(11�bits)�in�RTU�mode: � Coding�System:�8-bit�binary � Bits�per�Byte: � � 1�start�bit � � 8�data�bits,�least�significant�bit�sent�� � � first � � 1�bit�for�parity � � 1�stop�bit Baud�rate:�selectable�in�configuration Modbus�address:�1−247�addresses�selectable�in configuration�menu Conformance Meets�requirements�for�CE�marking: EMC�Directive�2014/35/EU RoHS�Directive�2011/65/EU LVD�Directive�2014/35/EU WEEE�Directive�2012/19/EU INTRODUCTION APPLICATIONS WARNING CDT-MOD-2000�series�devices�are�commonly�used�to�monitor: • CO2�and�humidity�levels�in�offices,�public�spaces,�meeting�rooms� and�classrooms • CO2�levels�of�return�air�in�ventilation�systems •��incoming�air�and�return�air�humidity�levels�in�ventilation�system COMPANY WITH MANAGEMENT SYSTEM CERTIFIED BY DNV GL = ISO 9001 = ISO 14001 = RoHS 2 2011/65/EU