What should I do if a fixed gas detector fails?
During gas detection, it is inevitable that the gas detector may experience some malfunctions. But if we find that the gas detector is malfunctioning during the testing process, wouldn't that be a very bad thing? So we need to clarify the common faults of gas detectors in advance, because basically all the faults that may occur in gas detection have been studied and summarized. We can take some time to review and summarize. Learning more is not harmful for solving emergency troubleshooting problems! Here are the common troubleshooting issues with our gas detector!
The construction process is not standardized; The non-standard construction process may cause the combustible gas detector to malfunction during use. If the fixed combustible gas detector is not located near the equipment that is prone to leakage, 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 difficult for the combustible gas detector to detect the leakage risk in a timely manner. If the fixed combustible gas detector is not reliably grounded and cannot eliminate electromagnetic interference, it will inevitably affect the voltage and result in inaccurate detection data. Therefore, the combustible gas detector should be reliably grounded during the construction process. The combustible gas alarm and wiring terminals are located in areas that are prone to collision or water ingress, causing electrical circuit breaks or short circuits. Non corrosive soldering flux must be used for welding, otherwise the joint will corrode and detach or increase the line resistance, affecting normal detection. Do not drop or throw the detector to the ground. After construction, debugging should be carried out to ensure that the alarm is in normal working condition.
Improper use by the user; During the use of the fixed gas detector, the user installs the air conditioner and heating equipment near the combustible gas detector. If the cold and warm air flows directly through the combustible gas detector 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 detector, resulting in errors
Therefore, fixed combustible gas detectors should be kept away from air conditioning and heating equipment to avoid malfunctions caused by improper placement. Users should also pay attention to preventing electromagnetic interference when using combustible gas detectors. The installation position, installation angle, protective measures, and system wiring of the portable alarm should be designed to prevent electromagnetic interference. Users should pay attention to factors that may cause malfunctions during the use of combustible gas detectors, such as dust, high temperature, humidity, rain, etc. When installing a combustible gas alarm in a location that requires the installation of an exhaust fan, if the exhaust fan is placed adjacent to the combustible gas detector, the leaked combustible gas will not be able to fully spread to the vicinity of the combustible gas alarm, resulting in the inability to detect in a timely manner and causing a missed opportunity. Users should also pay attention to avoiding places with high temperature, high humidity, steam, and oil fumes when using combustible gas detectors. Do not place or hang items on the detector. The installed combustible gas detector cannot be moved arbitrarily. Users should choose products with replaceable sensor probes when using portable alarm devices for ease of use. The maintenance and upkeep of the combustible gas detector requires communication between the detector and the detection environment to detect the concentration of combustible gases. Therefore, it is inevitable for various pollutants and dust in the environment to enter the detector, which can cause damage to the working conditions of the detector. Fixed combustible gas detectors work in harsh environments and are often installed outdoors. Poor maintenance and upkeep can lead to detection errors or failure of the combustible gas detector. Therefore, regular cleaning and maintenance of combustible gas detectors is an important task to prevent malfunctions. Grounding should be regularly checked. If the grounding does not meet the standard requirements or is not grounded at all, it can also make the combustible gas detector susceptible to electromagnetic interference and cause malfunctions. It is recommended to perform response testing on the standard gas used in various instruments before use to ensure that the instruments truly serve a protective purpose. Fixed combustible gas detectors and toxic gas detectors, like other analytical and detection instruments, are measured using a relative comparison method: first, the instrument is calibrated with a zero gas and a standard concentration gas, and the standard curve is stored in the instrument. During the measurement, the instrument compares the electrical signal generated by the concentration of the gas to be measured with the electrical signal of the standard concentration to calculate the accurate gas concentration value. Therefore, zeroing the instrument at any time and regularly calibrating the instrument are essential tasks to ensure accurate measurement.
