Introduction to the selection criteria and principles of toxic and harmful gas detectors
The core component of a toxic gas detector is the sensor. The sensor of the toxic gas detector is an electrochemical sensor. The lifespan of electrochemical sensors in air is generally two years. Some models from certain manufacturers can last up to three years or even longer, Some only last for a year and a half or less. Unless otherwise specified, the service life of imported electrochemical sensors is two years.
Toxic gas detector is a special safety gas environmental hygiene detector used to detect the content of toxic gases in the air of chemical workplaces or equipment, and to alarm when the limit is exceeded. We need to strengthen safety management of hazardous chemicals, improve safety measures, and control potential safety hazards. However, it is impossible to achieve absolute safety, and errors will still occur. Therefore, it is very necessary to detect and alarm for potential accidents, and to detect and alarm for all toxic gases or liquids (vapors) in the hazardous chemical industry. It is of great significance to avoid and control accidents.
Toxic and harmful gas detector is a special safety and health detector used to detect the content of flammable or toxic gases and vapors in the air inside chemical workplaces or equipment, and to alarm when the limit is exceeded.
Principles for selecting toxic and harmful gas detectors:
1. Clearly define the testing purpose and select the instrument category. The detection of harmful gases generally has two purposes. The first one is to detect explosions, and the second one is to detect toxic gases. The so-called explosion test is to detect the combustible gas content in hazardous areas, alarm when it exceeds the standard, and avoid explosion accidents; Poison testing is the process of detecting the concentration of toxic gases in hazardous areas. When it exceeds the limit, an alarm is triggered to prevent staff from being poisoned.
2. Clearly define the testing purpose and select the type of instrument. If leak detection is carried out in production or storage locations for a long time, a fixed detection alarm should be used; Other maintenance inspections, emergency inspections, entry inspections, and patrol inspections shall be conducted using portable instruments.
3. Clearly define the test object and select the optimal instrument model. It should be noted that the detection principle of the instrument should adapt to the requirements of the detection environment. (There are issues with adapting to the testing and detection environment)
