1、 Improper operation of the user gas alarm During the whole process of using the gas detector, the user should install and use the air conditioning and heating equipment close to the combustible gas detector. During the whole process of using the air conditioning and heating equipment, if the cold and warm air flow directly blows through the portable alarm, it may lead to a deviation in the resistivity of the platinum wire of the portable alarm, so the portable alarm should be kept away from the air conditioning and heating equipment, Avoid failure caused by improper installation position. Users should also pay special attention to anti-electromagnetic interference during the whole process of using combustible gas detector. The installation and use position, installation and use angle, protective measures and system wiring of the movable alarm shall be protected against electromagnetic interference. Users should pay special attention to the key factors that may cause failure during the whole process of using the combustible gas detector, such as dust, high temperature, humidity, rain, etc.
2、 The whole construction process is not standardized; The whole process of construction is not standardized, which will cause the monitoring failure of combustible gas detector in the whole process of use. If the combustible gas detector is not located near the combustible gas detector that is easy to leak, or is installed adjacent to the exhaust fan during installation and use, the leaked combustible gas detector cannot fully diffuse to the vicinity of the combustible gas detector, thus making the leakage dangerous situation unable to be detected by the combustible gas detector in time.
3、 The maintenance of the gas detector should monitor the gas concentration value and make the detector communicate with the monitoring environment. Therefore, it is impossible to avoid all kinds of polluting gases and dust in the environment entering the detector. The damage to the working conditions caused by the detector is an objective fact. The working environment of the combustible gas detector is relatively bad, and many of them are installed and used outdoors, Improper maintenance of equipment will lead to deviation or non-monitoring of the portable alarm. Therefore, regular cleaning and maintenance of combustible gas detector is an important work to avoid failure.
Key factors to be fully considered before using the gas detector: 1. Before entering the confined space and/or container, it is necessary to check whether the working area is safe and whether reasonable arrangements should be made accordingly, such as configuring a set of ventilation equipment. Is there any toxic or explosive substance in the area? If yes, what is it? How much oxygen is there? If the safety level measurement can be implemented correctly, these two questions can be answered. If the container has been completely emptied, it still plays an important role in risk assessment, regardless of whether there are pollutants releasing gases or dangerous substances entering.
Measuring the safety level of the factory requires professional knowledge in selecting and applying appropriate measuring methods. Similarly, the results can only be reliably evaluated through correct professional knowledge; It is also important to do a good job of training and preparation.