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CO2 transmitter for demanding applications


The HLX820 is designed for use in harsh, demanding applications. A multip-point CO2 and temperature factory adjustment procedure leads to an excellent CO2 measurement accuracy over the entire temperature working range.
The HLX820 incorporates the dual wavelength NDIR CO2 sensor, which compensates for ageing effects, is highly insensitive to pollution and offers outstanding long term stability.
For fast response time requirements there is an HLX820 version with forced air circulation created by a fan installed behind the filter. With its robust, functional housing and a special integrated filter the HLX820 can be installed in polluted applications such as agriculture and livestock barns. The M12 connector option facilitates easy removal of the HLX820 before site cleaning operations. An optional kit facilitates easy configuration and adjustment of the HLX820.

Key Features
dual wavelength NDIR CO2 working principle Measuring range up to 10,000ppm
Auto-calibration for excellent long term stability
Temperature dependency of only 1ppm CO2/°C
Fast response time version
Robust and functional enclosure
Highly insensitive to pollution
Voltage or current analogue outputs
Fast and easy installation
Easy user configuration and adjustment

Typical Applicatons
Fruit and vegetable storage
Hatcheries and Incubators
Vehicles, Trains, Trams

Techn. data
Measuring range 0...2000 / 5000 / 10000ppm
Outputs 0...5V / 10V or 4...20mA
Accuracy 0...2000ppm: ± (50ppm + 2% of measuring value)
0...5000ppm: ± (50ppm + 3% of measuring value)
0...10000ppm: ± (100ppm + 5% of measuring value)
Supply 24V AC/DC

Technical Specifications
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