Categories CO2 Transmitter, Carbon Dioxide Transmitter
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.
Brand : HK Instruments
The CDT2000 Duct series transmitters calibrate themselves automatically using ABC logicTM. The ABC logicTM 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.
| 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 LogicTM 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 | 0/2…5/10 V (linear to CO2), L min 1 kΩ |
| Output signal 2 | 0/2…5/10 V (linear to T), L min 1 kΩ |
| Operating temperature | 0…+50 °C |
| Protection standard | IP54 |
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