What is the range of the flammable gas monitor?
Combustible gas detector is a gas detection equipment to detect the concentration of combustible gas leakage detection, mainly using sensors to detect the presence of combustible gases in the environment type, composition and content. So what is the range of the combustible gas detector?
Combustible gas detector range:
Combustible gas detector is to prevent a variety of combustible gas leakage triggered by a variety of dangerous gas detectors, with a variety of alarm signals to remind the function of such combustible gas detector range is usually the lower explosive limit of combustible gases as a full range to % LEL as a unit, therefore, in the use of combustible gas detector, when the detection of concentration reaches 100 per cent of the LEL, combustible gases encountered with open flames or high temperatures will be Explosion danger occurs.
Usually our combustible gas detector city through the lower limit of the explosion of methane as the basis for setting, then we through the methane as an example, the lower limit of the explosion of methane is 5%, the upper limit of the explosion of 15.4%, that is to say, when the concentration of methane in the air in our 5% - 15.4%, encountered with open flames will explode, of which 5% is the volume of the ratio, so our combustible gas detector of the full scale 100% LEL is equivalent to 5% volume ratio. And in our combustible gas detector use, there will usually be a level of alarm and secondary alarm, as well as the alarm for the 25% LEL, the secondary alarm for the 50% LEL, when we use, combustible gases to reach a level of 25% LEL alarm, the environment of the combustible gas concentration is 1.25%, once analogous, 50% LEL is 2.5%.
Therefore, there is no need to worry about combustible gas detector alarm is not at any time after the danger, it from reaching the explosion there is a certain distance. Immediately take appropriate measures, such as opening the exhaust fan or cut off some valves or open the sprinkler system, etc., the risk of explosion will not appear. There is a big gap from the lower limit of the explosion of the real possibility of danger for the alarm, so that it will play a role in the alarm prompt.
