CO2 Gas Leakage - Detection

Product Series: HBGS-CO2

HBGS fulfils the requirements for gas leakage measurement in accordance with F-GAS regulation EU/517/2014. HBGS detects CO₂ (R744) in a range of 0…10000 ppm. The sensor applies NDIR (Non-Dispersive Infra-Red) detection technique. This technique is based on the fact each gas has a unique and well-defined light absorption curve in the infrared spectrum that can be used to identify the CO₂ gas. The concentration can be determined by using a suitable infrared source and analyzing the quantity of energy absorbed from the gas inside the optical path.

It is an independent unit that must be supplied with 24 V DC. It has 3 built-in digital alarm output and 1 analog 4… 20 mA output. The sensor can be set up using a PC with the HB Configuration Tool. The CO₂ sensor version has a lifetime of more than 5 years. Both sensor elements can easily be replaced and does not require a new calibration. On the front, you can find 4 integrated LEDs for display of the supply (green) as well as 3 alarm levels (red, orange, and yellow). Similarly, there is a reset button in case an alarm is triggered. The sensor is factory calibrated. Verification during the lifetime can be done with high gas concentrations. The sensor is optimized for use in areas where cleaning solvents are used. Built-in heating element ensures low ambient temperatures down to -30 ° C. The sensor comes with a calibration certificate as well as with preconfigured alarm limits.

Product features

  Integrated LED's for display of the supply (green) as well as 3 alarm levels (red, orange and yellow).
  The sensor is factory calibrated and does not require additional calibration at startup. The sensor comes with a calibration certificate as well as with configured alarm limits.
Supply voltage: 24 V DC - Power consumption max 3 watt
Reset button in case an alarm is trigged

Alarm limits: 1000 - 10000 ppm (can be configured with HB-tool).

Standard factory settings:
Alarm A: 8000 ppm NO/NC
Alarm B: 5000 ppm NO/NC
Alarm C: 2000 ppm NO/NC

The HBGS can also be ordered with customized default settings based on specific customer needs.


Electrical installation

HBGS web 


 HBGS NH3 KOMP R3 1 Small


Power supply
Power supply24 V DC - Power consumption max 3 watt
ConnectionScrew terminals
Cable glands2 x PG7
AlarmCan be configured with HB-tool and an USB cable and an adapter
Alarm limits1000 to 10000 ppm for CO2
Measurement accuracy NH3Repeatability +/-10%
Analog output4...20 mA
Max load500 ohm
Alarm output, relay3 x SPDT, 0,5A
Environmental conditions
Ambient temperature-30...+50°C
Protection degreeIP20, box IP65
Mechanical specifications
Cabinet size82x59x126 
MountingOn walls with screws
EMC EmissionEN 61000-6-4
EMC EmissionEN 61000-6-2
Alarm device - part number Sounder Beacon
Alarm  can be configured with HB-tool
Alarm limits1000 to 10000 ppm

Ordering code

Measurement area ppmGasOrdering code
0....10000 ppmCO2HBGS-CO2
AccessoriesGasOrdering code
Part no. Service kit for verificationCO2 (R744)HBGS-ServiceKit
Part no. Sounder/flash lightCO2 (R744)Sounder Beacon