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Starting at $386.03CAD
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Dwyer

CDT Carbon Dioxide/Temperature Transmitter

NDIR CO2 sensor, universal outputs, and optional relay to accurately monitor the CO2 levels and temperature indoors

Starting at
$386.03CAD
Have questions? We're here to help!
Have questions? We're here to help!
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The Series CDT Carbon Dioxide and Temperature Transmitters accurately monitor the CO2 concentration and temperature in indoor environments to help achieve energy savings. In order to achieve a higher level of accuracy, the Series CDT includes barometric pressure adjustment. The CO2 universal output allows users to select the transmitter output to be 4-20 mA, 0-5 VDC, or 0-10 VDC to work with virtually any building management controller.
For applications that require visual indication, the wall mount configurations of the Series CDT can be ordered with an integral LCD display. To prevent tampering, the action of the buttons can be locked out using an internal dip switch selection. The Series CDT CO2 transmitters are available with a -S option that provides the necessary attributes and parameters to be complaint with DSA requirements for monitoring CO2 levels in schools. There is a front facing LED that illuminates when the CO2 level exceeds 1100 PPM.
• Minimize inventory and save time by combining CO2 and temperature measurements into one transmitter
• Reduces the number of devices mounted in the space with integral humidity and temperature sensors
• Requires minimal maintenance with Automatic Baseline Correction (ABC) to account for sensor drift
• Reduce operation costs using a low energy, reliable, and repeatable CO2 sensor
• Simplify installation with backplate electrical connection
Humidity Limits10% - 95% RH, Non-condensing
SensorNDIR, 15 year life expectancy.
RangeCO2: 0 ppm - 2000 ppm or 0 ppm - 5000 ppm (depending on model);
Temperature: 32°F - 122°F (0°C - 50°C)
AccuracyCO2: ± 40 ppm ± 3% of reading;
Temperature: ± 1°C @ 25°C
Temperature± 1°C @ 25°C
Temperature Dependance± 8 ppm/°C at 1100 ppm
Non-Linearity16 ppm
Pressure Dependance0.13% of reading per mm Hg
Response Time2 min for 99% step change
Duct Air Velocity Range0 FPM - 4000 FPM (20.32 m/s)
Temperature Limits32°F - 122°F (0°C - 50°C) 10 to 95% RH (non-condensing).
Power Requirements16 VDC - 35 VDC or 19 VAC - 28 VAC
Power ConsumptionAverage: 2 W;
Peak: 3.75 W
OutputCurrent: 4 - 20 mA (max 500 Ω);
Voltage: 0 - 5 VDC or 0 - 10 VDC (min 500 Ω);
Relay: SPST NO 2 A @ 30 VDC
Weight4.4 oz (125 g
Enclosure RatingDuct mount: NEMA 4X (IP66) for housing only;
Wall mount: IP20
Agency ApprovalsCE

• Demand control ventilation in schools, office buildings, hospitals, and other indoor environments
• LEED® certification

  • Thumbnail of document Manual - CDT Carbon Dioxide/Temperature Transmitter
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    Manual - CDT Carbon Dioxide/Temperature Transmitter

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  • Thumbnail of document Manual - CDT Carbon Dioxide/Temperature Transmitter
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    Manual - CDT Carbon Dioxide/Temperature Transmitter

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  • Thumbnail of document Data Sheet - CDT Carbon Dioxide/Temperature Transmitter
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    Data Sheet - CDT Carbon Dioxide/Temperature Transmitter

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