I believe everyone knows that the composite gas detector can detect and analyze the concentration of various gases. when the detected gas concentration is at a safe value, the detection data of different periods will be recorded. when a certain gas exceeds the set value, an audible and visual alarm will be issued. the data panel can clearly see which gas concentration exceeds the standard and take corresponding measures to avoid greater accidents. Although the composite gas detector is very useful, in the process of use, there are still many friends who do not know much about the setting standard of the alarm value of the composite gas detector. Do you know what is the alarm value setting standard for composite gas detector ? The following is a brief introduction by Yiyuntian:

composite gas detector alarm concentration value:

1, and the first-level alarm setting value for combustible gas shall be less than or equal to 25% LEL.

2. The secondary alarm setting value for combustible gas should be less than or equal to 50% LEL.

3. the primary alarm setting value for toxic gases should be less than or equal to 100 OEL, and the secondary alarm setting value for toxic gases should be less than or equal to 200 OEL. When the measurement range of the existing detector cannot meet the measurement requirements, the first-level alarm setting value of toxic gas shall not exceed 5% IDLH, and the second-level alarm setting value of toxic gas shall not exceed 10% IDLH.

4. the setting value of ambient oxygen alarm should be 23.5 VOL, and the setting value of ambient oxygen alarm should be 19.5 VOL.

5. the primary alarm setting value for linear combustible gas measurement shall be 1LEL · m; The secondary alarm setting value shall be 2LEL · m.

In summary, the alarm value setting standard of the composite gas detector is for your reference only. If you want to know more about the alarm concentration value of common gas detection and alarm instruments, please call Yiyuntian.