Troubleshooting of combustible gas online detector

Combustible gas on-line detector has a very clear large LCD screen, sound and light alarm, with built-in pump to ensure that in a very unfavorable working environment can also detect dangerous gases and prompt prompt operation personnel to prevent.
Failure analysis and countermeasures of the use of combustible gas on-line detector (1) The user installs the air conditioning and heating equipment close to the flammable gas detector during the use of the detector by the user. When the air conditioning and heating equipment is used, the process is cold. The direct flow of the heating gas through the combustible gas alarm may cause errors in the resistivity of the platinum gas alarm of the combustible gas alarm. Therefore, the combustible gas alarm should be kept away from air conditioners and heating equipment to avoid faults caused by improper installation positions. Users should also pay attention to electromagnetic interference during the use of flammable gas detectors. The installation position, installation angle, protective measures and system wiring of flammable gas alarms should be prevented from electromagnetic interference. There are three main ways that the electromagnetic environment affects combustible gas alarms: airborne electromagnetic interference, narrow pulse groups on power supplies and other input and output lines, and human body electrostatics. For example, when a flammable gas alarm is installed near an air conditioner, it will cause deviations in the detection of the system; the distance between the detection circuit and power lines, lighting lines and other strong electric circuits is small, and without the protection against electromagnetic interference, the system will also generate detection deviations. . When using flammable gas detectors, users should pay attention to factors that may cause malfunctions, such as dust, high temperature, humidity, and rain. When an exhaust fan needs to be installed in a field where a combustible gas alarm is installed, if the exhaust fan is disposed adjacent to a flammable gas detector, the leaked combustible gas will not be able to fully diffuse into the vicinity of the combustible gas alarm, resulting in the inability to detect it in time. Yi Yi fighter. In addition, users should also pay attention to the setting of flammable gas detectors in explosion-proof places. For example, a class A factory emitting flammable gas should use explosion-proof flammable gas alarms, and the explosion-proof rating should not be lower than the corresponding explosion-proof rating required by current regulations. Users should also pay attention to the use of flammable gas detectors to avoid high temperatures, high humidity, steam, and soot. Do not place objects or hang objects on the detector. The installed flammable gas detector cannot move the device anywhere. The user uses a combustible gas alarm as much as possible to use a sensor probe replaceable product for ease of use.
(II) Non-standard construction process Non-standard construction process will cause flammable gas detectors to detect faults during use. If the flammable gas detector is not located in the vicinity of the flammable gas where the equipment is liable to leak, or is installed adjacent to the exhaust fan during installation, the leaked combustible gas cannot fully diffuse into the vicinity of the flammable gas detector, so that the leakage danger cannot be ignited in time. Gas detector detection. For residential flammable gas detectors should be installed near the gas pipelines and cooking appliances in the kitchen. When the households use natural gas, the ceiling of the gas detector ceiling should be installed within 300mm from the ceiling; when the resident uses liquefied petroleum gas, gas The detector should be installed within 300mm from the ground. If the flammable gas detector is not grounded reliably, electromagnetic interference cannot be eliminated, which will affect the voltage and cause faults with inaccurate detection data. Therefore, the flammable gas detector should be reliably grounded during construction. Flammable gas detectors and wiring terminals are set up to be vulnerable to collisions or ingress of water, causing electrical circuit lines to open or short circuit. Welding must be done with non-corrosive fluxes, otherwise joints will erode off or increase line resistance, affecting normal detection. Do not drop or drop the detector on the ground. After the completion of construction, commissioning should be carried out to ensure that the combustible gas alarm is in normal operation.
(C) Maintenance of flammable gas online detectors To detect flammable gas information, it is necessary to make the detectors communicate with the testing environment. Therefore, it is unavoidable that various polluting gases and accumulated dust in the environment enter the detector. The damage to working conditions caused by the instrument is objective. The working environment of the flammable gas detector is rather harsh, and many of them are installed outdoors. Poorly maintained maintenance will result in the detection or detection of flammable gas alarms. Therefore, regular cleaning and maintenance of flammable gas detectors is an important task to prevent malfunctions. Grounding should be regularly tested. Grounding cannot meet standard requirements or is not grounded at all. This can also make flammable gas detectors susceptible to electromagnetic interference and cause problems. Prevent component aging. From the reliability considerations, at the same time, practice has proven that the flammable gas detector service period of more than 10 years of the system caused by component aging tends to increase, so the service period exceeds the use of the requirements, should be promptly replaced.

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