CARBON DIOXIDE/TEMPERATURE TRANSMITTER, 0 to 2000 ppm CO2 range., 4 to 20 mA

CDTR 2-D-4-0-4-RLY<br />
Brand: Dwyer.<br />
[CDTR]: series, Carbon dioxide/RH/temperature transmitter.<br />
[2]: Range, 0 to 2000 ppm CO2 range.<br />
[D]: Configuration, Duct mount.<br />
[4]: CO2 Output, 4 to 20 mA / 0 to (5 or 10) VDC.<br />
[0]: Temperature Output, None.<br />
[4]: RH Output, 4 to 20 mA / 0 to (5 or 10) VDC.<br />
[RLY]: Relay<br />
Accuracy: ±40 ppm + 3% of reading (CO2); ±2% (RH).<br />
Temperature Dependence: ±8 ppm / °C at 1100 ppm.<br />
Non-Linearity: 16 ppm.<br />
Pressure Dependence:  0.13% of reading per mm of Hg.<br />
Response Time: 2 minutes for 99% step change.<br />
Temperature Limits: 32 to 122°F (0 to 50°C).<br />
Duct Air Velocity Range: 0-4000 FPM (20.32 m/s)<br />
Humidity Limits: 10 to 95% RH (noncondensing).<br />
Power Requirements: 16 to 35 VDC / 19 to 28 VAC.<br />
Power Consumption: Average: 2 watts; Peak: 3.75 watts.<br />
Sensor: Single beam, dual-wavelength NDIR.<br />
Output: Current: 4 to 20 mA (max 500 Ω); Voltage: 0 to 5 VDC or 0 to 10 VDC (min 500 Ω); Relay: SPST NO 2 A @ 30 VDC; RTD or thermistor per r-t curves (depending on model).<br />
Weight: 5.6 oz (158.8 g).