| 摘要 |
PROBLEM TO BE SOLVED: To provide device for monitoring gas appliance that conducts automatic gas pressure inspection through communication with a gas pressure regulator. SOLUTION: This gas appliance monitoring device is equipped with flow rate measuring means 17, gas emergency trip valve 2c, control circuit 10a for processing various information based on measurement results of the above flow rate measuring means 17, radio module 11 for transmitting/receiving information with a plurality of other parties, and communications switching means 10c for switching communication frequency band depending on other parties. The radio module 11 is integrally-configured with control circuit board 10 which comprises the flow rate measuring means 17 to be stored in gas meter 2, designed so that it has at least both communication frequency band with base station 14 and communication frequency band with gas pressure regulator 22, performs regulated pressure verification mode of gas pressure regulating means 22a by gas pressure error determination means 27 when "no flow rate" is detected, in response to inspection order from the base station 14, and then activates bomb side shutoff valve 22c via bomb side radio module 11d, to shut off gas supply path, when "gas pressure abnormal" has been determined. COPYRIGHT: (C)2009,JPO&INPIT
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