| 摘要 |
PROBLEM TO BE SOLVED: To provide the inspection method of a gas alarm having an alarm function for gas leak and incomplete combustion, and the gas alarm implementing the checking method. SOLUTION: This gas alarm is provided with: an inspection carbon monoxide gas concentration output detection means 11A for detecting the output of a sensing element 3a according to the concentration of carbon monoxide gas in the inspection gas containing hydrogen gas and carbon monoxide gas in place of methane gas in a low temperature heating period in an inspection mode; an inspection carbon monoxide gas concentration decision means 11B; an incomplete combustion alarm output means 11C for outputting an incomplete combustion alarm signal for inspection; an inspection hydrogen gas concentration output detection means 11D for detecting the output of the sensing element according to the concentration of the hydrogen gas in the inspection gas only when it is decided that the concentration of the carbon monoxide gas has reached the inspection carbon monoxide gas concentration level by the inspection monoxide gas concentration decision means 11B; an inspection hydrogen gas concentration deciding means 11E; and a gas leak alarm output means 11F for outputting a gas leak alarm signal for inspection. COPYRIGHT: (C)2008,JPO&INPIT
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