What is the flammable gas detector's range?
The detection range of combustible gas detectors is mostly within the range of 0-100% LEL. If the leakage concentration of combustible gas detected is greater than 25% LEL and less than 50% LEL, the combustible gas detector will emit a low alarm. When the leakage concentration of combustible gas is detected to be greater than 50% LEL, the combustible gas detector will emit a high-frequency sound and light alarm warning signal, improving on-site operators' control of combustible gas in the environment, thus achieving safe and efficient production.
What is the range of the combustible gas detector
Combustible gas detectors can detect many combustible gases, such as natural gas, liquefied gas, coal gas, ethane, acetylene, butane, n-butane, isobutane, pentane, hexane, halogenated hydrocarbons (chloromethane, methylene chloride, trichloroethane, vinyl chloride), alcohols (methanol, ethanol, propanol), ethers, ketones (butanone, acetone), hydrogen Toluene and other compounds (gasoline, industrial solvents, paints, thinners, coolants, dry cleaning liquids, methyl acetate, etc.).
What is LEL?
LEL refers to the lower explosive limit of a gas. When a combustible gas or flammable liquid vapor (or combustible dust) mixes with air and reaches a certain concentration, it will explode when encountering a fire source. This concentration range that can cause an explosion is called the explosive limit. The lower explosive limit of each gas is different.
The explosion limit of hydrogen gas: lower limit 4.0%, upper limit 74.2%, combustion and explosion occur when encountering air and open flames. 4.0% is the minimum volume fraction for hydrogen gas to explode when encountering an open flame. If it is less than this bottom line, it will not ignite and will not explode when encountering an open flame. 74.2% is the maximum limit (or upper limit) of the highest volume fraction, above which it can safely burn in the presence of air and open flames without explosion. In short, the range with a volume fraction below or below the explosion limit will not explode in the event of an open flame.
Catalytic combustion type gas detectors are used to monitor the changes in combustible gases in the surrounding air from 0 to 100% LEL. The sensor adopts catalytic combustion technology and can be replaced on-site. Catalytic combustion sensors have a sharp response to a wide range of combustible gases. This technology has universal applicability for combustible gases.
Combustible gas detectors are gas detectors installed and used in industrial and civil buildings that respond to single or multiple combustible gas concentrations. The most commonly used combustible gas detectors in daily life are catalytic combustible gas detectors and semi conductive combustible gas detectors.
Semiconductive combustible gas detectors are mainly used in places such as restaurants, hotels, and home production rooms that use gas, natural gas, and liquefied gas. Catalytic combustible gas detectors are mainly used in industrial places that emit combustible gases and vapors.
The above is the introduction provided by the editor of Shenzhen Liye about the range of combustible gas detectors. We hope it will be helpful for you to understand combustible gas detectors! Regular cleaning and maintenance of combustible gas detectors is an important task to prevent them from malfunctioning.
