Brief Analysis of Gas Detector Faults
Gas detector fault analysis
1. The construction process is not standardized; the non-standard construction process will cause the flammable gas detector to detect failures during use. If the flammable gas detector is not installed near the flammable gas detector, or it is installed adjacent to the exhaust fan during installation, the leaked flammable gas cannot be fully diffused to the vicinity of the flammable gas detector, so that the dangerous leakage cannot be eliminated in time. Gas detector detection. If the flammable gas detector is not reliably grounded and electromagnetic interference cannot be eliminated, the voltage will be affected and the detection data will be inaccurate. Therefore, the flammable gas detector should be reliably grounded during construction. The flammable gas alarm and connection terminals are located in places that are prone to collision or water ingress, causing electrical circuit breaks or short circuits. Non-corrosive flux must be used for welding, otherwise the corrosion at the joint will separate or increase the line resistance, which will affect the normal detection. Do not drop or drop the detector on the ground. Debugging should be carried out after construction to ensure that the body alarm is in normal working condition.
2. Improper use by the user; the gas alarm user installs the air conditioner and heating equipment close to the flammable gas detector during the use of the gas detector. When using the air conditioner and heating equipment, if the cold and warm air blow directly The body alarm may cause the resistivity of the platinum wire of the body alarm to change and cause errors.
Avoid Gas Detector Failures
Therefore, the body alarm should be kept away from air conditioners and heating equipment to avoid failure caused by improper setting. Users should also pay attention to anti-electromagnetic interference when using the flammable gas detector. The installation position, installation angle, protective measures and system wiring of the body alarm should prevent electromagnetic interference. When using the flammable gas detector, users should pay attention to factors that may cause failures, such as: dust, high temperature, humidity, rain, etc. When an exhaust fan is required to be installed in the place where the flammable gas alarm is installed, if the exhaust fan is installed adjacent to the flammable gas detector, the leaked gas will not be able to fully diffuse to the vicinity of the gas alarm, resulting in failure to detect in time. Yi missed the opportunity. Users should also pay attention to avoid places where high temperature, high humidity, steam, and oily smoke can reach when using the flammable gas detector. Do not place or hang objects on the detector. The installed flammable gas detector cannot move the position of the device arbitrarily. Users should try their best to choose products with replaceable sensor probes when using body alarms for ease of use. Maintenance and maintenance of the body detector To detect the body concentration, the detector must communicate with the detection environment, so it is unavoidable for various polluting gases and dust in the environment to enter the detector, which will affect the working conditions of the detector Damage is an objective existence. The working environment of flammable gas detectors is relatively harsh, and many of them are installed outdoors. Poor maintenance will lead to errors or non-detection of the body alarm. Therefore, regular cleaning and maintenance of combustible gas detectors is an important task to prevent failures.
The grounding should be checked regularly. If the grounding does not meet the standard requirements, or is not grounded at all, it will also make the flammable gas detector susceptible to electromagnetic interference and cause failure. It is recommended to test the response of the standard gas used for the instruments before using them to ensure that the instruments really play a protective role. Combustible gas alarms and toxic gas alarms, like other analytical and testing instruments, are measured by relative comparison method: first, a zero gas and a gas with a standard concentration are used to calibrate the instrument, and the standard curve is obtained and stored in In the instrument, when measuring, the instrument compares the electrical signal generated by the gas concentration to be measured with the electrical signal of the standard concentration, and calculates the accurate gas concentration value. Therefore, zeroing the instrument at any time and frequently calibrating the instrument are essential tasks to ensure the accuracy of the instrument measurement.
Under normal circumstances, the gas detector is prone to failure when the user does not use the specified usage rules or the usage process is not standardized. Where there is no wind, there is no wave, so there must be a reason for the failure. Therefore, the editor finally suggests that if there is a fault when using the gas detector, you can first recall whether you have used it correctly, and then find the cause of the fault and how to deal with it
