What should you pay attention to when choosing a gas detector?
1. Determine the occasion of use: Different industrial environments require different types of gas detectors.
2. When purchasing a gas detector, it is also necessary to confirm the type and concentration range of the gas to be detected. The types of gases encountered by each production department are different. When choosing a gas detector, all possible situations must be considered. If there are a lot of methane and other less toxic alkanes, it is undoubtedly the most appropriate to choose an LEL detector. This is not only because the principle of the LEL detector is simple and widely used, but it also has the characteristics of convenient maintenance and calibration. If there are toxic gases such as carbon monoxide and hydrogen sulfide, it is necessary to choose a specific gas detector first to ensure the safety of workers. If there are more organic toxic and harmful gases, taking into account the low concentration that may cause personnel poisoning, such as aromatic hydrocarbons, halogenated hydrocarbons, [Industrial Electrical Network-cnelc] ammonia (amine), ether, alcohol, fat, etc., You should choose a photoionization detector, and never use an LEL detector to deal with it, because it may cause personal injury or death. If the gas types cover the above types of gases, choosing a composite gas detector may achieve twice the result with half the effort.
3. Portable gas detector: because the portable instrument is easy to operate and small in size, it can be carried to different production sites. The electrochemical detector is powered by alkaline batteries and can be used continuously for 1000 hours; the new LEL detector, PID and composite instruments The use of rechargeable batteries (some have used memoryless Ni-MH or lithium-ion batteries) allows them to work continuously for nearly 12 hours. Therefore, gas detectors are increasingly used in various factories and health departments as such instruments. wide.
