| 摘要 |
PURPOSE:To prevent a firehazard or the like by a constitution wherein combustion can be stopped by comparing any set voltage with the voltage of a temperature sensor. CONSTITUTION:The control device is provided with a voltage comparating circuit 29, comparing three values of reference voltages, generated by the output of a flame detecting circuit 15, with the voltage of the temperature sensor, and a temperature reporting voltage comparating circuit 57, comparing the voltage of temperature sensor with a voltage setable arbitrarily. The device is also provided with a NAND circuit 36, into which the turnover output of the circuit 57 and the output of the comparating circuit 29 are inputted, and the NAND circuit 35, into which the output of the circuit 36 and the output of an ignition timer circuit 8 are inputted while the secondary side output of a Palma transformer driven by the output of the circuit 35 is communicated by a transistor. A DC-DC converter circuit 37, holding a safety valve 3, a reporting timer circuit, having the turnover circuit of the circuit 37 and OR inputs of the output of the turnover circuit and the output of the circuit 57, and an intermittent oscillating circuit 82, into which the output of the circuit 72 is inputted, are also provided in the device. Further, the circuit is constituted of a battery check circuit 52, informing the consumption of a battery, and a buzzer drive circuit 87, having the OR input of the outputs of the circuit 82, 52. |
