I believe everyone knows that there are many functions of combustible gas detectors, but the main function is to detect the concentration of combustible gas to ensure that there is a combustible gas leak in the area and to give an alarm in time. For example, in the catering industry, boiler room, gas station, gas station, sewage treatment plant, sludge treatment plant, iron and steel metallurgy industry, paint factory, spraying plant, paint room and other occasions need to use combustible gas detector to ensure our safety. At this time, the combustible gas detector is qualified is particularly important. So how should we judge whether the combustible gas detector is qualified? The following is a brief introduction by yi yun Tian:

Method for judging whether the combustible gas detector is qualified:

1. when the difference between the alarm action value of combustible gas detector and the alarm setting value marked on the nameplate does not exceed 10% LEL, it is qualified.

2. when the difference between the alarm action value of the combustible gas detector and the alarm set value marked on the nameplate exceeds 10% LEL, but it is still within the range of 1% LEL ~ 25% LEL, it shall prevail.

3. when the alarm action value of the combustible gas detector exceeds the requirements of the above paragraph, it is not closed.

4. for combustible gas detectors with low and high limit alarms, low and high limit alarms shall be set as required and inspected separately. The identification of low limit alarm shall be carried out according to paragraph 1-3 of this article. When the high limit alarm action value is between 40% and LEL-60 LEL, it is qualified, and when it exceeds it, it is not closed.

5. Sound and light alarm and linkage functions shall meet the requirements of the product specification.

In summary, it is the method to judge whether the combustible gas detector is qualified.A qualified combustible gas detector can effectively detect and supervise the combustible gas in these places, so as to ensure the safety of the detection personnel and the combustible gas in the place and improve the work efficiency.