Gas Detector Failure Analysis
First, the construction process is not standardized; construction process is not standardized in the use of combustible gas detector detection failure. Such as combustible gas detector is not located in the equipment is easy to leak near the body, or the installation and exhaust fan set up adjacent to the leak of the body can not be fully diffused to the combustible gas detector near the leak so that the leakage of dangerous situations can not be detected in time by the combustible gas detector. Combustible gas detector such as unreliable grounding, can not eliminate electromagnetic interference, will affect the voltage, the detection data is not allowed to appear fault. Therefore, the combustible gas detector should be reliably grounded during construction. Combustible gas alarms and terminals set up in easy to suffer collision or easy to enter the water, resulting in electrical circuit breakage or short circuit. Welding must use non-corrosive flux, otherwise the joints corrode off or increase line resistance, affecting normal detection. Do not drop or throw the detector to the ground. After construction should be debugged to ensure that the body alarm in a normal working condition.
Second, the user improper use; gas alarm users use the gas detector process, the air conditioning and heating equipment near the combustible gas detector installation, when the use of air conditioning and heating equipment in the process, if the cold, warm airflow blowing directly over the body alarm, it may cause the body alarm platinum wire resistivity changes in the error.
Avoid Gas Detector Failure
Therefore, the body alarm should be far away from the air conditioning, heating equipment, to avoid improper location of the setup triggered failure. Users should also pay attention to the process of combustible gas detector to prevent electromagnetic interference. Can body alarm installation location, installation angle, protective measures and system wiring should be anti-electromagnetic interference. Users should pay attention to the combustible gas detector should be used in the process of easy to cause failure of the factors, such as: dust, high temperature, humidity, rain and so on. When installing combustible gas alarms need to install exhaust fans, exhaust fans, such as combustible gas detector and combustible gas detector set up adjacent to the leak will not be able to fully diffuse to the body of the body near the alarm, resulting in the detection of the timely, Yee missed the opportunity to fight. Users should also pay attention to the use of combustible gas detector to avoid high temperature, high humidity, steam, fumes can reach the place. Do not place items on the detector or hanging items. The installed combustible gas detector can not move the position of the device arbitrarily. Users to use the body alarm as much as possible to choose the sensor probe can be replaced to facilitate the use of the product. Maintenance of the body detector to detect the concentration of the body, must make the detector and the detection of environmental communication, so the environment of a variety of contaminating gases and dust into the detector can not be avoided, the detector caused by the working conditions of the damage is the objective existence of the combustible gas detector working environment is relatively harsh, there are many installations in the outdoor area, poor maintenance will lead to the detection of body alarms or errors in detection. Not detecting. Therefore, regular cleaning and maintenance of the combustible gas detector is an important work to prevent failure. Grounding should be tested regularly, grounding is not up to the standard requirements, or not grounded at all, will also make the combustible gas detector susceptible to electromagnetic interference, resulting in failure. It is recommended that before the use of various types of instruments, the instrument with the standard gas response test to ensure that the instrument really play a protective role. Combustible gas alarms and toxic gas alarms are also the same as other analytical instruments, are measured by the method of relative comparison: first of all, the instrument is calibrated with a zero gas and a standard concentration of gas, the standard curve is stored in the instrument, the measurement, the instrument will be measured gas concentration of the electrical signals generated by the standard concentration of the electric signal to compare with the standard concentration of electrical signals, calculated to obtain the exact value of the gas concentration. Therefore, zeroing the instrument at any time and calibrating the instrument regularly are indispensable to ensure the accuracy of the measurement.
