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Time: 2017-09-21 View: 2689Household gas alarm is detached from shenzhen armoured WeiXin safety technology co., LTD., production research and development, if not installed in the process of using gas alarm once leakage is easy to cause explosion. General gas company will deliberately add smelly agent in a colorless, odorless gas, a slight leakage, the user can perceive commonly, the user if the alarm smell gas or gas leakage is suspected, should immediately take the following measures:
Open all doors and Windows, allow gas to be distributed, check whether the burner switch is closed, and turn off the total valve and extinguish all fires. If the gas has been closed and the gas is still detected, you should leave the scene immediately and dial 110 or call the gas company hotline 96511.
At the same time, the user do not start any indoor electric switch (such as turn on the light or turn off the lights and any RanQiJu, don´t use indoor telephone and mobile phone, wireless phone, at the same time, keep in mind that do not use any flame (including matches or lighters), more do not use open flame test leakage source, if you want to neighbors for help, don´t push his neighbor´s doorbell. The gas leakage alarm can be divided into the function of alarm and detection alarm. Leak alarm only leak alarm function, and detection alarm not only has leak alarm function but also can show gas concentration. The use of the premises can be divided into civil gas leakage alarms and commercial alarms. The civil alarm is usually the gas alarm which is used independently in the residence. Commercial alarms are mainly used in the transport, storage, gas and gas leakage factories and public places of gas. Gas alarm is the core of the gas sensor, commonly known as "electronic nose". The sensor mainly includes oxide semiconductor type, catalytic combustion type, hot-wire gas sensor, and a small number of other types, such as chemical battery sensor. These sensors are adsorbed by flammable gases in the surrounding environment, which produce chemical reactions or electrochemical reactions on the surface of the sensor, causing changes in the electrical physical properties of the sensors. The sensor resistance changes with the gas concentration, and then the electrical signal is generated to be processed by the gas alarm.