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Hydrogen H2 Detectors

A hydrogen detector is a device that detects and measures hydrogen (H2) as part of a comprehensive gas detection system or as a standalone sensor. The correct placement of hydrogen detectors is a key aspect of a properly functioning detection system. In the case of a hydrogen system, we place hydrogen detectors up to 30 cm from the ceiling of the facility, as it is a lighter gas than air and therefore accumulates in the highest parts of the room. Hydrogen detectors are widely used in the protection of various industrial facilities, including the chemical and petrochemical industries, the food and beverage industry, battery charging stations, laboratories, and even in control stations and workshops where hydrogen-powered vehicles are handled. Therefore, it is important to select detection systems designed for the specific type of facility. Whether you are looking for detectors for your new establishment or need to upgrade your existing detectors in accordance with the latest legislative regulations.
Hydrogen is a colourless and very light gas without odour. The ratio of this gas to air is 0.07%. Hydrogen is also a flammable gas and has a low explosive limit. According to the standard EN-60079-20-1 2010P, the lower explosive limit (LEL) is up to 4% by volume and the upper explosive limit (UEL) is up to 77% by volume. It falls into temperature class T1 category IIC. Therefore, a hydrogen detector installed in a hazardous area must be certified for the appropriate zone according to ATEX. The measurement range is usually 0-100% of the lower explosive limit (LEL). Alarm threshold values should be set at appropriate levels to ensure that the gas concentration does not reach values that could be hazardous.