CDT2000 Duct combines CO2 and temperature measurements in one device that is installed in a ventilation duct. An illuminated display enables easy reading even from a distance. The CDT2000 Duct features a screwless cover and an easily adjustable mounting flange that allows for easy installation. CDT2000 uses the industry standard NDIR measurement principle with self-calibrating ABC logic™ to measure CO2. CDT2000-DC is a dual channel model with a measurement channel and a reference channel that performs a permanent comparison and the corresponding necessary regulation. CDT2000-DC is also suitable for buildings in which someone is constantly present.
CDT2000 Duct is used to monitor and control the CO2 concentration of the supply and return air in a ventilation system. Devices of the CDT2000-DC Duct series can also be used in applications with a permanent carbon dioxide source (e.g. hospitals and greenhouses).
TECHNICAL DETAILS:
Accuracy:
CO2: ±40 ppm + 2% of reading, DC model: 75 ppm or 10% of reading (whichever is greater)
Temperature: <0.5℃
Measurement units: ppm, °C
Calibration: Automatic self-calibration, ABC LogicTM or permanent comparison (DC)
Supply voltage: 24 VDC/VAC ±10%
Output signal 1: 0/2… 5/10 V (linear to CO2)
Output signal 2: 0/2… 5/10 V (linear to temp.)
Output signal 3 (optional): 4 ... 20 mA (linear to CO2) (model A)
Output signal 4 (optional): 4 ... 20 mA (linear to temp.) (model A)
Operating temperature: 0…+50 °C
Protection class: IP54
