CO₂, Humidity and Temperature Duct Mount Sensor
EE850
The EE850 is a 3 in 1 duct mounted sensor ideal for demand controlled ventilation and building automation. It combines CO₂, humidity and temperature in an innovative and functional enclosure. The EE850 incorporates the E+E dual wavelength NDIR CO₂ sensing element, which compensates for ageing effects, is highly insensitive to pollution and offers outstanding long term stability.
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EE850 CO₂, humidity and temperature sensor for duct mounting
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
Key Features
- E+E dual wavelength NDIR CO₂ working principle
- CO₂ auto-calibration for excellent long term stability
- Temperature compensation of the CO₂ measurement
- High insensitivity to pollution
- Humidity sensor protected by the E+E proprietary coating
- Voltage or current outputs
- Modbus RTU or BACnet MS/TP
- Optional passive temperature sensor
- Fast and easy installation
- Easy user configuration and adjustment
Technical data
- Measuring range CO₂
- 0...2000 ppm
0...10000 ppm - Accuracy CO₂ - *mv - measured value
- < ± (50 ppm +2% of mv*)
< ± (100 ppm +5% of mv*) - Measuring range Humidity
- 0...95 % RH
- Accuracy Humidity
- ±3 % RH (20...80 % RH)
- Measuring range Temperature
- -20...60 °C (-4...140 °F)
- Accuracy Temperature
- ±0.3 °C (±0.54 °F)
- Output analogue
- 0-5 / 10 V or 4-20 mA
- Output digital
- Modbus RTU or BACnet MS/TP
- Supply
- 24 V AC/DC
Related products
EE820
Downloads EE850
FAQ
Transmitter with "two-wire" technology receive the power from the process, and the signal is carried on return wire (closed current loop). With "three-wires" technology the power supply is separate from current output: 2 wires are the power supply and the third carries the signal.
All E+E CO₂ measuring devices feature an auto-calibration function. For details please refer to "Principles of CO₂ measurement".