Greystone carbon dioxide sensor CDD4 Series

Power supply

20-28 VDC

Output Signals

4-20 mA active (sourcing), 0-5 Vdc or 0-10 Vdc (field selectable)

Sensor Coverage Area

100 m (1000 ft) typical

Measurement Type

CDD4A: Non-Dispersive Infrared (NDIR), diffusion sampling

CDD4B: Dual Channel Non-Dispersive Infrared (NDIR), diffusion sampling

Measurement Range

CDD4A: 0 - 2000 ppm

CDD4B: 0 - 20,000 ppm, programmable span from 2000 to 20,000 ppm

Standard Accuracy

CDD4A: 30 PPM + 3% of reading with Auto Cal on.

CDD4B: 75 PPM or 10% of reading (whichever is greater)

Temperature Dependence

0.2% FS per C

Resolution

1 ppm CO2, 1% RH, 1C (1F)