GAS SAFETY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a gas safety device in which the integrated usage time of an appliance to be maintained is clocked and which can know a maintenance timing. SOLUTION: The gas safety device is provided with a flow-rate detection part 1. The device is provided with a flow-rate-division registration part 2 in which a detection flow rate is compared with a threshold value so as to allocated to a corresponding flow-rate division. The device is provided with a flow-rate-division setting part 3 which sets the flow-rate division of the appliance to be maintained. The device is provided with a flow-rate-division judgment part 4 which outputs a signal to a next stage while the flow-rate division of the registration part 2 agrees with the flow- rate division of the setting part 3. The device is provide with an operating-time measuring part 5 which clocks and integrates the time in which the judgment part 4 outputs the signal. The device is provided with a reference-time setting part 6 which sets the usage time required for a maintenance operation. The device is provided with an operating-time judgment part 7 which outputs a warning signal when the measured time exceeds the set time. The device is provided with a reporting means 8 which reports a maintenance warning on the basis of the output of the setting part 7.