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CDT-MOD-2000 Multifunctional CO2 transmitters for building automation systems that use Modbus serial communication protocol

CDT-MOD-2000 Multifunctional CO2 transmitters for building automation systems that use Modbus serial communication protocol

Product Details:

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Product Description

CDT series devices include:

  • Separate eld congurable Modbus output for each measurement parameter (CO2, rH, T)
  • One analog output for selected measurement: voltage (0/210 V) or current (420 mA)
  • 2 x 3 touchscreen display
  • Optional relay output

Specification

Communication: RS-485 Modbus (RTU)
Accuracy: CO2: 40 ppm + 2 % of reading, DC model: 75 ppm or 10 % of reading (whichever is greater)
Temperature: <0.5 C
Relative humidity: 23 % rH at 050 C and 1090 % rH
Total error band includes accuracy, hysteresis and temperature effect over 550 C and 1090 % rH
Measurement elements: Pt1000 temperature sensor, Non Dispersive Infrared (NDIR) CO2 sensor, thermoset polymer capacitive sensing element for humidity
Measuring units: ppm, C, % rH
Calibration: Automatic self-calibration, ABC LogicTM or continuous comparison (DC)
Supply voltage: 24 VDC/VAC 10 %
Current consumption: max 90 mA (at 24 V) + 10 mA for each voltage output or 20 mA for each current output
Output signal 1: 0/210 V (linear to CO2), L min 1 k or 420 mA (linear to CO2), L max 500
Output signal 2: 0/210 V (linear to rH), L min 1 k or 420 mA (linear to rH), L max 500
Output signal 3: 0/210 V (linear to Temp), L min 1 k or 420 mA (linear to Temp), L max 500
Optional relay output: Potential free SPDT 250 VAC, 6 A / 30 VDC, 6 A with adjustable switching point and hysteresis
Operating temperature: 0+50C
Protection standard: IP20

 

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