H2s detector are used to detect hydrogen sulfide, which is also known as sewer gas, swamp gas, stink damp or rotten damp. It is a colorless, poisonous and extremely flammable gas that can be fatal at high concentrations. H2S gas monitors alert workers to the presence of the dangerous substance, so they can take appropriate precautions and evacuate the area as soon as the threshold is crossed. They are commonly found in mining, oil and gas production, tanning, pulp and paper, rayon, food processing and breweries. This hazardous gas can also be found in confined spaces, manure pits and landfills.

Hydrogen sulfide detection is most often performed using chemical sensors that utilize different properties of the substance to detect it. Electrochemical sensors use the change in resistance of the sensor due to H2S to generate an electric current that is detected by the detector. Fluorescence and colorimetric chemical sensors rely on the fact that different concentrations of H2S produce different amounts of light or color.

Protecting Against H2S Exposure: The Importance of H2S Detectors

Many safety experts recommend buying a h2s detector that is designed for a harsh environment. These are typically equipped with a stainless steel sensor that is immune to corrosion and moisture, which is particularly important in a harsh environment. They also offer advanced features, such as a digital display that displays the actual gas concentration.

To ensure that a h2s detector is working properly, it should be bump tested regularly. This is a simple process that involves exposing the device to a known concentration of H2S for a minute or so. The device should then go into alarm to confirm that it is functioning correctly.