Apparatus for detecting abnnormality of gas supply equipment and method for detecting same

摘要

The present invention provides a abnormality detecting apparatus capable of constantly monitoring even a slight amount of gas which has leaked by checking gas supply pipe when it is detected that the pressure regulating function of a pressure regulator is abnormal. The present invention also provides a abnormality detecting apparatus capable of detecting abnormality of regulated pressure of a pressure regulator appropriately by comparing the regulated pressure with a predetermined low value of a pressure regulating range when gas flow rate is great and with a predetermined high value of a pressure regulating range when gas flow rate is small.