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CDT-2W40-LCD, Series CDT Carbon Dioxide Transmitter, 0 to 2000 ppm CO2 range, Duct, 4 to 20 mA / 0 to (5 or 10) VDC (C02), LCD display, Wall Mount

The SERIES CDT Carbon Dioxide Transmitter accurately monitor the CO2 concentration. For increased sensor accuracy, a single beam dual wavelength nondispersive infrared (NDIR) sensor is used to automatically correct the measurement in both occupied* and unoccupied buildings against light source aging effects. The single beam dual wavelength sensor technology provides the highest level of accuracy compared to Automatic Baseline Correction methods which can unintentionally shift the calibration based on CO2 levels and barometric pressure conditions. In order to achieve a higher level of accuracy, the Series CDT includes digital barometric pressure adjustment and the ability to field-calibrate the sensor. To prevent tampering, the action of the buttons can be locked out using an internal dip switch selection.

*For buildings occupied 24 hours per day, it is recommended that calibration be verified every 6 to 12 months depending on application.

Single beam dual-wavelength sensor advantages:

Features:

Applications

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