The alarm value of the combustible gas alarm system is set as follows: The default low limit is 25% LEL (adjustable from 5% LEL to 40% LEL); the default high limit is 50% LEL (adjustable from 10% LEL to 100% LEL).
The setting basis is as follows: The measuring range of the combustible gas alarm is 0-100%LEL. According to national regulations, the low alarm is generally set to alarm between 15%LEL-25%LEL.
When the detector has two alarm settings, a low limit and a high limit, the low limit alarm set value should be in the range of 1%lel～25%lel, and the high limit alarm set value should be 50%lel; there is only one alarm For the set value detector, the alarm set value should be in the range of 1%lel～25%lel.
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