Hydrogen detector is a colorless, odorless and tasteless gas that can form explosive compounds in various concentrations. Sparks can ignite these compounds, which can cause detonation or explosion. Hydrogen Gas Detectors (HGD) protect battery charging rooms by continuously monitoring hydrogen concentrations and alerting operators to any hazardous conditions. This will allow for early warning to dissipate or contain the concentration of hydrogen and prevent explosions.

HGD sensors are used to monitor the presence of hydrogen in battery charging room environments where Motiv and Stationary batteries are stored. The detectors are equipped with LED lights and a loud alarm to indicate when levels of the explosive gas are present above the lower explosive limit (LEL) of 4.1%.

Hydrogen Detectors: Safeguarding Against Potential Hazards in Industrial Environments

Heat conduction-type hydrogen sensors use a Pt wire with high thermal conductivity to detect hydrogen molecules in the surrounding environment. As hydrogen diffuses through the sensor, the temperature of the sensor rises, and the electrical resistance decreases, resulting in a signal proportional to the amount of hydrogen in the surrounding environment.

Semiconductor-type hydrogen sensors consist of two principal components: 1) a semiconductor metal oxide layer, which functions as a sensor by absorbing oxygen into its surface, and 2) catalytic additives like noble metals or insulating additives, which accelerate the hydrogen oxidation reaction on the surface of the sensor to generate a response signal. Semiconductor-type sensors are more stable than the semiconductor metal oxide sensor, but they suffer from electromagnetic interference and are prone to signal drift.