Safety through precise calibration with specific zero gases and calibration gases for sensor tests in workplace monitoring
Ensuring safety in gas-exposed working environments requires continuous monitoring of the atmospheric gas composition. In closed or potentially explosive areas in particular, there is a risk of oxygen displacement by inert or combustible gases, which can impair breathing or form explosive mixtures.
To avoid hazards, oxygen sensors and gas detectors that respond to specified thresholds are installed in such environments. The validation and calibration of these sensors is essential to ensure measurement accuracy and avoid false alarms or non-detections.
Specific zero gases and calibration gases for standard-compliant sensor testing
Messer offers a comprehensive range of high-purity specific zero gases and standard-compliant calibration gases for the regular adjustment and functional testing of gas sensors. These are precisely tailored to the requirements of sensor technology and enable the reliable reproduction of measurement conditions.
In the field of explosion protection technology, specially defined test gas mixtures with proportions of 20%, 40% or 50% of the lower explosion limit (LEL) are used. These calibration gases are available in robust, practical pressurized gas cylinders and meet the requirements of international standards and guidelines for sensor calibration.
Technical specifications and advantages
- High-purity specific zero gases with residual gas contents in the ppb range to ensure precise zero-point calibration
- Calibration gas mixtures with precisely defined concentrations for gas detectors of various classes
- Gas mixtures with LEL proportions for potentially explosive atmospheres (Ex zones)
- Traceability of calibration gases to national reference standards and certified quality in accordance with EN ISO/IEC 17025
Summary
The use of specific zero gases and high-precision calibration gases is crucial for the reliable functioning of gas sensors in workplace monitoring. Regular sensor testing and calibration ensure both the safety of employees and compliance with legal regulations.
