| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas shutoff device which integrates gas flow rate and displays the integrated gas amount corresponding to the flow rate of gas equipment. SOLUTION: The gas shutoff device comprises: the flow rate operation means 10 for converting into the flow rate; the integration correction means 11 for performing the integration correction till the prescribed integration by deciding whether the flow rate is plus or minus flow rate than that of the flow rate operation means 10; the integration amount additional means 13 for obtaining the integration cycle of the unit integration amount by summing up the output from the integration correction means 11 outputted at the time of reaching the prescribed integration value, the flow rate obtained by the flow rate operation means 10 and integration table means 12; and the integration means 14 for summing up the unit integration amount outputted for every predetermined time by setting the integration cycle and outputting the unit integration amount for every prescribed time after counting. COPYRIGHT: (C)2006,JPO&NCIPI
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