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CO2 transmitter for duct mounting EE85 E E ELEKTRONIK

Duct mounted carbon dioxide transmitters of EE85 series are designed for HVAC applications. The CO2 sensing element uses the Non-Dispersive Infrared Technology (NDIR). A patented auto-calibration procedure compen- sates for drift caused by the aging of the sensing element and guarantees outstanding long term stability.
Installed into a duct a small flow of air will be established by convection through the probe into the transmitter housing and back into the duct. Inside the transmitter housing the air will diffuse through a membrane into the CO2 sensing element.
The operation in closed loop air stream avoids pollution of the CO2 sensor.

Measuring ranges 0...2000 / 5000 / 10000ppm correspond to analogue voltage output 0...5V / 10V or 4...20mA.
The instrument can be easily positioned in the duct with the standard mounting flange.