What is the difference between combustible gas and toxic gas detectors?
The combustible gas detector mainly detects combustible gases, and uses methane as a standard to detect the concentration of combustible gases. According to the different combustible gases in the user's usage location, the concentration of the main gas can be used as the standard detection gas to set.
Combustible gas detection is generally used in places where there are flammable hazardous gases such as petroleum and chemical industries, mainly targeting organic gases such as alkanes and inorganic gases such as methane and carbon monoxide. When combustible gases reach a certain concentration and are combined with sufficient oxygen concentration and a source of ignition, an explosion will occur. Explosions may be accompanied by large-scale fires and accidents, posing a threat to the safety of personnel and property. Therefore, in industries that generate volatile organic compounds during production and manufacturing processes, it is important to use specific combustible gas detection as a safety production standard, as most volatile organic compounds are flammable.
A toxic gas detector needs to know which specific gas or gases to detect. It can choose a separate toxic gas detection alarm or a composite toxic gas detector, depending on whether the toxic gas in the usage site needs to be detected as a single gas or multiple gases.
The application scope of toxic gas detection is relatively wider, targeting volatile organic compounds (VOCs) contained in production raw materials, or gases generated in the production process such as ammonia (NH3), carbon monoxide (CO), hydrogen sulfide (H2S), chlorine gas (CL2), hydrogen cyanide (HCN), nitric oxide (NO), sulfur dioxide (SO2), etc. The concentration of these gases exceeding specific standards can cause discomfort to the human body, trigger various diseases, and in severe cases, directly lead to death. At the same time, the monitoring of these toxic and harmful gases is an important issue in the national prevention of occupational diseases.
The difference between combustible gas detectors and toxic gas detectors is that combustible gas detectors use catalytic combustion gas sensors, while toxic gas detectors use electrochemical sensors, infrared sensors, PID sensors, etc. The unit concentration and content of the detected gas are different.
