The CO2 concentration is measured through non-dispersive infrared (NDIR) waveguide technology with ABC automatic background calibration algorithm. The applied measuring technology guarantees excellent reliability and long term stability. The microprocessor samples the CO2 once per second. It calculates an averaging signal over a preset number of seconds and generates the output signal. Ranges can also be set by using the internal or external display and programming module (OPC-S or OPA-S).
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CO2 transmitter for air duct,