| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas cutoff device which can easily read out data generated by accurately measuring the state of supply facilities up to a gas instrument using town gas, LP gas, etc. SOLUTION: This device comprises a cutoff history storage means 21 which stores cutoff information when a flow rate detecting means 18 detects the use flow rate of gas to decide whether or not the use flow rate is normal and a cutoff means 20 cuts off a flow passage on condition that an abnormality decision means 19 decides abnormality, a leak day number counting means 23 which measures the number of leak days when a leak decision means 22 decides a leak of gas, a supply pressure storage means 26 which stores supply pressure by detecting gas pressure by a pressure detecting means 24 and deciding by a pressure decision means 25 whether or not supply pressure and closure pressure are normal, and a closure pressure storage means 27 which stores the closure pressure, and makes a number display by a display means 29 by sequentially switching various data contents by a display switching means 28 each time an operation means 30 is operated in order.
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