Selection criteria and principles of toxic and harmful gas detectors
The core part of the toxic gas detector is the sensor. The sensor of the toxic gas detector is an electrochemical sensor. The life of an electrochemical sensor in air is typically two years. Some models from individual manufacturers can last three years or more. , some only for a year and a half or less. Unless otherwise stated, the service life of imported electrochemical sensors is two years.
Toxic gas detector is a special safety gas environmental sanitation detector, which is used to detect the toxic gas content in the air in chemical workplaces or equipment, and alarm when it exceeds the limit value. Hazardous chemicals should strengthen safety management, improve safety measures, and control hidden dangers of accidents. However, it is impossible to be absolutely safe, and errors will still occur. Therefore, it is very necessary to detect and alarm the hidden dangers of accidents, and to detect and alarm all toxic gases or liquids (vapors) in the hazardous chemical industry. It is of great significance to avoid and control accidents.
The toxic and harmful gas detector is a special safety and health detector, which is used to detect the content of flammable or toxic gases and vapors in the air of chemical workplaces or equipment, and alarm when the limit is exceeded.
Selection principle of toxic and harmful gas detector:
1. Clarify the detection purpose and select the instrument category. The detection of harmful gases generally has two purposes. The first is to detect explosions and the second is to detect poisonous gas. The so-called explosion test is to detect the content of flammable gas in dangerous places, and alarm when it exceeds the standard to avoid explosion accidents; the poison test is to detect the content of toxic gases in dangerous places, and alarm when it exceeds the standard to avoid poisoning of staff.
2. Clarify the detection purpose and select the instrument type. For long-term leak detection at the production or storage location, fixed detection alarms should be used; other maintenance detection, emergency detection, entry detection and patrol detection, etc., use portable instruments.
3. Define the test object and choose the best instrument model. It should be noted that the detection principle of the instrument should be adapted to the requirements of the detection environment. (There is a problem with adapting to the test detection environment)
