CDT2000 Duct CO2 Transmitters With Temperature Output For Duct

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Product Description

CDT2000 Duct combines CO₂ and temperature measurements in one device installed in air 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 the installation of the device easy.

The CDT2000 Duct series transmitters calibrate themselves automatically using ABC logic^TM. The ABC logic^TM requires that the space in which the transmitter is used needs to to be unoccupied for four hours per day so that the indoor CO₂concentration drops to the outside level. CDT2000-DC Duct 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 Duct is also suitable for buildings that are continuously occupied.

CDT2000 Duct series devices include:

Separate output for each measurement parameter (CO₂ and T)
Mounting flange

CDT2000 Duct series device options offer:

Clear backlit display
Modbus RTU interface

Specification

Accuracy:	CO₂: 40 ppm + 2 % of reading, DC model: 75 ppm or 10 % of reading (whichever is greater) Temperature: <0.5 C
Measurement elements:	NTC10k temperature sensor, Non Dispersive Infrared (NDIR) CO₂ sensor
Measuring units:	ppm, C
Calibration:	Automatic self-calibration, ABC Logic^TM or continuous comparison (DC)
Supply voltage:	24 VDC/VAC 10 %
Current consumption:	max 230 mA (at 24 V) + 10 mA for each voltage output
Output signal 1:	0/25/10 V (linear to CO₂), L min 1 k
Output signal 2:	0/25/10 V (linear to T), L min 1 k
Operating temperature:	0+50 C
Protection standard:	IP54