How to Calibrate a Gas Leak Detector

A gas leak detector can be an important tool in protecting yourself and your family from a dangerous flammable or toxic gas leak. These tools typically have sensors and a warning system that alerts you when unsafe conditions are detected. Some models also have features that help you find the source of a leak and take the necessary actions to prevent further damage or injury.

Different types of gases require different sensors and have varying sensitivity levels. You can choose from combustible gas detectors, carbon monoxide detectors, photoionization detectors, flame-retardant detectors, electrochemical and metal-oxide semiconductor (MOS) sensors, and other types of detection technology.

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Before you use a gas leak detector, it is essential to calibrate the unit for the specific gases it detects and its sensitivity level. Calibrating the sensor increases its accuracy and makes its output trustworthy. When calibration is not done properly, the sensor may report incorrect results or may not respond to a specific type of gas at all. The manufacturer recommends certain calibration procedures and frequency, and you can adjust these settings according to the detector’s use and environment.

One easy way to test a gas leak detector is to spray it with Snoop Solution, which is composed of deionized water and a surfactant that produces sustained bubbling in the presence of flammable or toxic gas. Then, watch the device for the bubbles as they rise to identify the leak location. You can also buy a handheld gas detector with a flexible probe that lets you suck air into hard-to-reach places, such as flanges or valves to pinpoint the source of the leak.

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