CO GAS DETECTING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a CO gas detecting device to effect correction of a 0-point reference value right after installation of a gas apparatus with high precision by considering the influence of temperature after combustion. SOLUTION: An initial correction means 2a-6 performs initial correction of a 0-point reference value in a way that, not in a combustion state according to a start of operation of the gas apparatus and in a state that a detecting element is heated to a detecting temperature, the detecting output of a CO detector is stored as a fresh 0-point reference value at a 0-point reference value memory means instead of a 0-point reference value before the fresh 0-point reference value to execute initial correction of the 0-point reference value. A first combustion correcting means 2a-7 executes first combustion correction of the 0-point reference value such that the detecting output of the CO detector is stored as a fresh 0-point reference value instead of a 0-point reference value before the fresh 0-point reference value at the 0-point reference value memory means at a point of time when any influence is not exercised on correction of the 0-point reference value by temperature generated by combustion after completion of combustion during completion of the first time combustion of the gas apparatus after initial correction.