Duct-mount temperature and CO2 transmitter EE850

2-wire4-20 mAModbus RTU

CO₂ and Temperature Sensor for Duct Mounting The EE850 combines CO₂ and temperature (T) measurement in an innovative enclosure. It is ideal for demand controlled ventilation and building automation. With a CO₂ measuring range of up to 10 000 ppm and a T working range of -20...+60 °C (-4...+140 °F), the EE850 can be employed also in demanding climate and process control applications. Long-Term Stability The EE850 incorporates the E+E dual wavelength NDIR CO₂ sensor, which compensates for ageing effects, is highly insensitive to pollution and offers outstanding long term stability. High Measurement Accuracy A multiple point CO₂ and T factory adjustment procedure leads to excellent CO₂ measurement accuracy over the entire T working range. Functional Design Installed into a duct, a small amount of air flows through the divided probe to the CO₂ sensing cell located inside the sensor enclosure and back into the duct. The T sensing element is placed inside the probe. The functional enclosure facilitates easy and fast mounting of the sensor with closed cover. Analogue, Digital and Passive T Outputs The CO₂ and T measured data is available on analogue outputs. Additionally, the RS485 interface supplies all values via Modbus RTU protocol. Easy Configuration and Adjustment An optional stick and the free PCS10 Product Configuration Software facilitate the configuration and adjustment of the EE850.