Troubleshooting Methods for Malfunctions of Combustible Gas Detectors
Combustible gas detection instruments are detectors that respond to the concentration of a single or multiple combustible gases. There are two types of combustible gas detection instruments: catalytic type and infrared optical type. Users may encounter some malfunctions while using combustible gas detection instruments, so we also need to master the methods for handling malfunctions during use. So what are the specific solutions to the malfunction of combustible gas detection instruments?
1. During the use of the detection instrument by the user, the air conditioner and heating equipment should be installed close to the combustible gas detection instrument. If the cold and warm air flows directly blow through the combustible gas detection instrument during the use of the air conditioner and heating equipment, it may cause changes in the resistivity of the platinum wire of the combustible gas detection instrument, resulting in errors. Therefore, the combustible gas detection instrument should be kept away from the air conditioner and heating equipment to avoid improper placement and failure.
2. Users should also pay attention to preventing electromagnetic interference when using combustible gas detection instruments. The installation position, installation angle, protective measures, and system wiring of combustible gas detection instruments should be protected against electromagnetic interference. There are three main ways in which the electromagnetic environment affects combustible gas detection instruments: airborne electromagnetic wave interference, narrow pulse groups on power and other input/output lines, and human static electricity.
3. Users should pay attention to factors that may cause malfunctions when using combustible gas detection instruments, such as dust, high temperature, humidity, rain, etc. When installing exhaust fans in places where combustible gas detection instruments need to be installed, if the exhaust fan is placed adjacent to the combustible gas detection instrument, the leaked combustible gas will not be able to fully diffuse to the vicinity of the combustible gas detection instrument, resulting in delayed detection and missed opportunities.
4. In addition, users should also pay attention to the installation of combustible gas detection instruments in explosion-proof areas. For example, Class A factories that emit combustible gases should use explosion-proof combustible gas detection instruments, and their explosion-proof level should not be lower than the corresponding explosion-proof level requirements of current regulations.
5. Users should also pay attention to avoiding places where high temperature, high humidity, steam, and oil fumes can reach when using combustible gas detection instruments. Do not place or hang items on the testing instrument. The installed combustible gas detection instrument cannot move the device's position arbitrarily.
6. Users should choose products with replaceable sensor probes when using combustible gas detection instruments for ease of use.
