What causes the failure of combustible gas detectors?
The combustible gas detector is a detector that responds to the concentration of single or multiple combustible gases. When the combustible gas enters the detector, it causes an oxidation reaction (flameless combustion) on the surface of the platinum wire, and the heat generated causes the temperature of the platinum wire to rise. high, and the resistivity of the platinum wire changes. However, malfunctions will inevitably occur during the use of combustible gas detectors. So what are the causes of combustible gas detector failures?
1. When using the combustible gas detector, attention should be paid to preventing electromagnetic interference. The installation position, installation angle, protective measures and system wiring of the combustible gas detector should prevent electromagnetic interference.
2. When using the combustible gas detector, the user places the air conditioning and heating equipment close to the combustible gas detector. When using the air conditioning and heating equipment, if the cold or warm air flows directly past the combustible gas detector, it may This causes errors in the resistivity of the platinum wire of the combustible gas detector. Therefore, the combustible gas detector should be kept away from air conditioning and heating equipment to avoid malfunctions caused by improper setting.
3. When using the combustible gas detector, users should also pay attention to avoid places where high temperature, high humidity, steam, and oil fumes can reach. Do not place or hang objects on the alarm. The installed combustible gas detector cannot be moved arbitrarily. When installing a combustible gas detector, try to use products with replaceable sensor probes for ease of use.
4. During the construction process, the combustible gas detector may have a detection failure during use. If the combustible gas detector is not located near the equipment that is prone to leaking combustible gas, or is installed adjacent to the exhaust fan, the leaked combustible gas cannot fully diffuse to the vicinity of the combustible gas detector, making it impossible to detect the leakage in a timely manner. instrument detection.
The above reasons for the failure of combustible gas detectors are shared here. Generally speaking, the main reason for the failure of combustible gas detectors is irregular installation, which refers to the unreasonable location of the installation of combustible gas detectors, such as failure to install the combustible gas detector. If the gas detector is installed at a point prone to leakage, or the installation location is close to the exhaust fan, the combustible gas detector will not be able to accurately obtain the concentration value of the gas, and it will be mistakenly believed that the combustible gas detector is faulty.
