carbon dioxide transmitters
CDT2000 Duct combines CO2 and temperature measurements into one device installed in a ventilation duct. Illuminated display ensures easy readability also from a distance. The CDT2000 Duct has a screwless lid and an easily adjustable mounting flange that make installing the device easy. CDT2000 utilizes the industry-standard NDIR measurement principle with self-calibrating ABC logic™ for CO2 measurement. CDT2000-DC is a dual channel model with a measuring channel and a reference channel that makes a continuous comparison and the necessary adjustment accordingly. CDT2000-DC is also suitable for buildings that are continuously occupied.
USAGE & APPLICATIONS
CDT2000 Duct is used to monitor and control CO2 concentration of incoming and return air in a ventilation system. CDT2000-DC Duct series devices can also be used in applications where there is a constant source of carbon dioxide present (for example hospitals and greenhouses).
Output signal 1:
Output signal 2:
Optional output signal 3:
Optional output signal 4:
CO2: ±40 ppm + 2 % of reading, DC model: 75 ppm or 10 % of reading (whichever is greater) Temperature: <0.5 °C
Automatic self-calibration, ABC LogicTM or continuous comparison (DC)
24 VDC/VAC ±10 %
0/2…5/10 V (linear to CO2)
0/2…5/10 V (linear to Temp)
4...20 mA (linear to CO2) (A model)
4...20 mA (linear to Temp) (A model)