| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an alarm capable of releasing a shipping mode when an environment capable of accurately performing self-diagnosis is restored from an environment incapable of accurately performing self-diagnosis and capable of preventing the release of the shipping mode in such state as whether the trouble of a gas sensor has occurred or not is not known. <P>SOLUTION: The CPU in a gas alarm is provided so that a CO gas with a concentration of x(ppm) or above is detected by a CO sensor when an inspection switch is operated and the release operation of a shipping mode is performed, and self-diagnosis and the release of the shipping mode are prohibited if the ambient temperature is 0°C or below. <P>COPYRIGHT: (C)2009,JPO&INPIT |
