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Dwyer

CDX - Wall Mount Carbon Dioxide Transmitter

Low cost and high performing CO2 sensor

This product is no longer available. Contact us at 800-567-8686 for alternative solutions.

Have questions? We're here to help!
Have questions? We're here to help!

 The Series CDX Carbon Dioxide Transmitter is a low cost and high performing CO2 sensor. This product will provide immediate energy savings by functioning in conjunction with building automation systems and allowing the user to effortlessly and effectively control fresh air into preferred areas. On-Demand ventilation using CO2 sensors prevents energy losses from over ventilation while maintaining indoor air quality. The potential for the greatest energy saving occurs in areas where occupancy alters over the duration of the day. The Series CDX Transmitters utilize the patented Automatic Background Calibration (ABC) Logic self-calibration system. ABC Logic virtually eliminates the need for manual calibration in applications where the indoor CO2 level drops to outside levels during unoccupied periods. If the transmitter is being used in an application where a building is continuously occupied 24 hours per day, then the user will permit that the ABC Logic feature be turned off.

Temperature Dependence:0.2% FS per °C (± 0.11% per °F).
Accuracy:±30 PPM or 3% of reading, whichever is higher. CO2 accuracy statement excludes standard gas used for calibration that has an accuracy of 2% and there is a potential digital to analog error of up to 1%.
Range:0 to 2000 PPM.
Agency Approvals:CE, RoHS.
Weight:European Housing: 5.44 oz (154 g); North American Housing: 6.24 oz (177 g).
Housing:Flammability classification UL94 5VA.
Output:Analog, 0 to 5 V or 0 to 10 V jumper selectable (100 Ω output impedance), 4 to 20 mA (RL maximum 500 Ω).
Sensor:Non-dispersive infrared (NDIR) absorption.
Power Consumption:.7 W @ nominal voltage of 24 VAC RMS.
Power Requirements:18 to 30 VAC RMS, 50/60 Hz, or 18 to 42 VDC, polarity protected.
Humidity Limits:0 to 95% relative humidity, non-condensing.
Temperature Limits:Operating: 32 to 122°F (0 to 50°C); Storage: -40 to 158°F (-40 to 70°C).
Warm Up Time:< 2 min (operational), 10 min (max. accuracy).
Response Time:5 s.
Pressure Dependence:.135% of reading per mm of Hg.
Stability:< 2% of FS over life of sensor (15 years).

 • On Demand Ventilation

 
  • Thumbnail of document Data Sheet - CDX - Wall Mount Carbon Dioxide Transmitter
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    Data Sheet - CDX - Wall Mount Carbon Dioxide Transmitter

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  • Thumbnail of document Manual - CDX - Wall Mount Carbon Dioxide Transmitter
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    Manual - CDX - Wall Mount Carbon Dioxide Transmitter

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