| 摘要 |
PURPOSE:To prevent danger and a gas from being being cut off unnecessarily by sending a status signal indicating the operation state of a microcomputer gas meter to the remote warning device and outputting speech guide information for warning and reporting corresponding to the signal. CONSTITUTION:Detection signals of a gas leakage alarm S4 and an incomplete combustion sensor S5 in an indoor-side safety detector 13 are sent to the microcomputer gas meter 01 through a microcomputer system 12 and communication ports TX and RX. A code obtained by classifying certain states when the microcomputer gas meter 01 is about to perform an automatic cutoff as, for example, the gas flow rate increases is reported as the status signal following its IDNO. When the remote warning device 02 receives the status signal, the preset speech guide information is outputted correspondingly to the signal. |
