Temperature sensor EE850

CO2infraredindoor

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. 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. The multi-point CO₂ and temperature factory adjustment leads to an excellent CO₂ measurement accuracy over the entire temperature working range. An optional adapter facilitates easy configuration and adjustment via the EE850 service interface. Typical Applications Building automation Demand controlled ventilation Process control 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.