| 摘要 |
PURPOSE:To contrive the continuous burning operation without stopping of burner and solve the problems such as the generation of CO and malodor generated at extinguishment and ignition time by a method wherein an alarm is made at the detection of fixed fuel containing quantity before the fuel is used up. CONSTITUTION:When a fuel in a fuel tank 3 is consumed to a level A position due to a burning, namely, tank weight detecting means 13 detects the fixed fuel containing quantity before the consumption of the fuel in the tank 3, makes the first switch 14 ON. Then an electric current is flowed intermittently through an alarm by the action of a cootrol circuit 36. The alarm is turned on and off, thus, the fuel exhausting in notified. When the fuel in the fuel tank 3 is perfectly exhausted and the fuel level in a fuel reservior 4 is lowered from a level B to a level C, a float 20 is separated from the second switch 21, then the second switch 21 is made OFF. The alarm is continued under lighted condition, thus, the burning stop alarm caused by the fuel exhausting is notified. |
