The essential role of gas detectors
The gas detector is an instrument that can continuously detect the concentration of toxic, harmful, flammable and explosive gases in the working environment. The detector detects the gas concentration by natural diffusion, automatically detects when it is turned on, and has advanced self-diagnosis and self-repair functions; the instrument adopts embedded micro-control technology, with simple menu operation, complete functions, high reliability, and a variety of adaptive capabilities.
The essential role of gas detectors, there are many types of gas detectors, one of which is toxic and harmful gas detectors. Toxic and harmful gas detectors are mainly used in the fields of chemical industry and coal mining, especially it is necessary to do gas detection before entering a new environment.
The toxic gas detector is a safety detection instrument used to detect the content of combustible or toxic gases in chemical workplaces, etc. and automatically alarm when the concentration exceeds the standard. It has been widely used in various petroleum, chemical, coal, metallurgical and other industrial places. Carbon monoxide detector is one of the most widely used toxic gas detectors.
The detection of gas detectors mainly comes from gas sensors to detect toxic and harmful gases. Each sensor corresponds to a specific detection gas, but any gas detector cannot be absolutely effective. Therefore, when choosing a gas sensor, it is necessary to understand the detection interference of other gases on the sensor as much as possible to ensure its accurate detection of a specific gas.
Be sure to pay attention to the service life of the detector or its lifespan. Each type of gas detector has a different lifespan. In most cases, currently, generally speaking, LEL sensors have a relatively long service life in portable instruments, generally about three years; photoionization detectors have a lifespan of four years or more; electrochemical specific The life of gas sensors is relatively short, generally one to two years; the life of oxygen sensors is the shortest, about one year. The lifetime of an electrochemical sensor depends on the drying up of the electrolyte in it. If these testing instruments are not used for a long time, the detector should be placed in a sealed environment, and the temperature of this sealed environment should be low, so as to prolong the service life of the detector.
