Everything You Need to Know About Calibrating Gas Detectors


Gas detectors are intended to protect workers from unknown potential hazards in the workplace atmosphere, especially in confined spaces.

Exposure to an excessive amount of toxic gases can cause serious illnesses. In the worst case, it can ignite a fire and cause serious injuries and death. Combustible poisonous gases can be disastrous, killing workers and destroying property. Dangerous accidents in the workplace due to inefficient detectors caused by poor maintenance and calibration are a significant threat. One of the best ways to ensure your personal gas monitor and gas detectors work efficiently is to test them with the known concentration of calibration gas.

What Is Calibration Gas Used For?

Calibration gas is a combination of gaseous components used for verifying the efficiency of a gas detector. In short, the calibration gas ensures the gas detectors and analysers function accurately. This is confirmed by testing the equipment with the known calibration gas.

Why Is It Important to Calibrate?

Gas detectors operate in harsh environments such as high and low temperatures and humidity levels. Additionally, they are exposed to harmful contaminants and gases such as solvents, silicones, carbon and hydrocarbon gas. Over time, the sensor can become inefficient due to constant exposure to these harmful substances. Inefficient gas monitors won’t be able to detect unsafe substances in the workplace, leading to false alarms, downtime, and exposure to gases, and fire accidents that can be catastrophic.

It’s important that infrared gas detectors and other types of gas monitoring instruments are well-maintained and calibrated according to the manufacturers’ recommendations and instructions for the safety of the workers and facility. Calibration plays a significant role in ensuring the safety and testing of gas monitors. To ensure gas detectors serve their purpose and raise the alarm when toxic gases exceed an acceptable limit, they should be calibrated properly.

How to Calibrate?

It’s crucial to perform the calibration process in a controlled way by considering various factors, including pressure, temperature, flow paths and rates, humidity, gases used, the time taken by sensors to respond, cross sensitivities, exhaustion of waste gas, and the instructions provided by the manufacturer.

Calibration is a two-step procedure. At first, the detector is zeroed in fresh air, nitrogen, or synthetic air to get the readings equal in clean air. Then, the detector is exposed to calibration gas containing a known concentration of gas that the sensor measures and adjusts the deviations to the accurate readings.

For further queries on calibrating your equipment, please get in touch with our team.

The author is an active blogger and renowned for providing innovative solutions such as calibration gas, gas detectors and turbidity analysers in Australia etc. to the Oil & Gas, Chemical, Petrochemical, Manufacturing, Food, Pharmaceutical, Water Treatment, and many other industries across Australia and New Zealand. Visit https://prodetec.com.au/ for more details.

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