What are the types of gas detectors used in applications
As is well known, gas detection is a very necessary work for safety protection. Gas detectors can effectively ensure gas detection in limited spaces and ensure the safety of the space. However, due to different application scenarios, there are currently many types of gas detectors, which can be subdivided into many gas detectors according to different classifications. So do you know what are the common classifications of gas detectors?
Common classification of gas detectors:
1. Classified by function:
There are single detector and multifunctional detector: single gas detector is mainly used to detect a certain gas in the detection site, and the usage is very large. And multifunctional gas detectors include 6-in-1 gas detectors, 5-in-1 gas detectors, 4-in-1 gas detectors, etc., to meet the needs of different gas detection quantities.
2. Classification by detection gas:
There are combustible gas detectors, toxic gas detectors, common gas detectors, and special gas detectors; The prices of common combustible and toxic gas detection instruments typically range from hundreds to thousands, while the prices of special gas detection instruments range from thousands to tens of thousands. The advantages of common combustible and toxic gas detection instruments are high cost-effectiveness and good performance, while special gases meet special inspection needs with high accuracy, but are expensive.
3. Classification by place of use:
There are conventional and explosion-proof types: The conventional type is produced according to national standards and can meet all environmental needs, with prices ranging from hundreds to thousands, characterized by excellent cost-effectiveness. The explosion-proof type meets the needs of all testing in special fields and is slightly expensive.
4. Classification by user group:
There are household and industrial applications: Household gas detectors are priced at tens to hundreds of yuan, with excellent cost-effectiveness and convenient use. They only need to be placed in designated positions and plugged into the power supply to work. They can also be linked with gas shut-off valves to achieve automated processing and cut off hidden dangers from the source. The requirements for various indicators of industrial gas detectors are very high, and they must meet the safety standards used in various places such as national standards and industry standards, with prices ranging from hundreds to thousands of yuan.
5. Classification by usage:
There are portable (handheld) and fixed (installed, wall mounted): portable instruments that meet the safety requirements of on-site operators for gas detection before operation, usually related to the usage scenario. The fixed type mainly achieves long-term uninterrupted detection to ensure the safety of the site, without the need for on-site personnel control, and can be intelligently linked.
6. Classification by sampling method:
There are diffusion type and pump suction type: diffusion type gas detectors have a very common usage rate and relatively low prices ranging from a few hundred to several thousand yuan. The price of pump suction gas detectors is relatively high, usually ranging from a few thousand yuan or more, mainly meeting the special needs of special places.
7. Classification based on detection principles:
Combustible gas detection includes catalytic combustion type, semi conductive type, thermal conductivity type, and infrared absorption type; Toxic gas detection includes electrochemical and semiconductor types.
