Both gas alarms and toxic and harmful gas detectors require annual inspections. The state stipulates that they should be inspected once a year! Compulsory inspection is usually only for ex-factory inspection and trade measurement, and the state only makes regulations for certain occasions that "valid..." In hazardous places such as chemical plants, the flammable gas detection and alarm equipment is regularly calibrated according to this regulation. The state makes mandatory certification for gas detectors, such as explosion-proof certificates.
The service life of the combustible gas detector sensor itself is generally 3-5 years, and it has a great relationship with the environment of the place of use. The industrial products of international famous brands should be checked every 6 months.
The regular annual inspection of combustible gas alarms is the guarantee for daily use. The state stipulates that the legal measurement department or legally authorized organization shall, in accordance with the verification procedures, provide proofs through experiments to determine that the indication error of the measuring instrument meets the specified requirements. The activity is called verification. Combustible gas alarms are measuring instruments that are subject to statutory mandatory verification. Every year, the quality inspection and measurement department should verify the combustible gas alarms in use and issue a verification certificate to ensure that they meet the measurement performance.
