CO₂ and Temperature Sensor for Duct Mounting
EE850
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
- 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
- Protected by the E+E proprietary coating
- Voltage or current outputs
- Modbus RTU
- Optional passive temperature sensor
- Fast and easy installation
- Easy user configuration and adjustment
- Measuring range CO₂
- 0...2000 ppm0...10000 ppm
- Accuracy CO₂ - *mv - measured value
- < ± (50 ppm +2% of mv*)< ± (100 ppm +5% of mv*)
- 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
- Supply
- 24 V AC/DC
Custom solutions for precise results
For more than 40 years, E+E Elektronik has been developing and manufacturing its highly precise and long-term stable sensors exclusively at its headquarters in Engerwitzdorf, Austria. The high level of vertical integration – from the sensor element to the precisely calibrated measuring device – ensures compliance with the highest quality standards and enables a quick response to customer-specific requirements.
E+E Elektronik offers:
- Accredited sensor calibration for the highest quality standards
- Efficient service – worldwide through local offices
- Short delivery times
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".
Latest news at E+E
E+E Elektronik at SMART Automation Austria 2025: May 20-22, 2025
E+E Elektronik at Ankleshwar Industrial Expo 2025: April 17-19, 2025
E+E Elektronik at Analytica Lab India: April 23-25, 2025
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Downloads EE850
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