GAS SUPPLY CONTROLLER, GAS USE ENABLING TIME DISPLAY UNIT, GAS USE ENABLING TIME DISPLAY METHOD, AND PROGRAM THEREFOR

摘要

PROBLEM TO BE SOLVED: To improve the convenience of a gas consumer by preventing useless gas shortage by precisely informing the gas consumer of a residual gas use enabling time.

SOLUTION: A control means 13 calculates a gas use enabling time based on prepaid gas use enabling quantity set by a prepaid gas use enabling quantity setting means 15 and a current gas flow rate detected by a gas flow rate detecting means 11. A cut-off valve 12 interrupts gas flowing through a gas pipe when the calculated residual gas use enabling time is running out. A display means 16 displays the gas use enabling time calculated by the control means 13. Also, the control means 13 recalculates the gas use enabling time each time when changing the gas flow rate.

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