| 摘要 |
PROBLEM TO BE SOLVED: To provide a flow rate display device capable of reducing the power consumption. SOLUTION: The flow rate display device is operated by a microcomputer, which performs the steps of maintaining a sleeve mode for stopping operation in a standby state (step 22), intermittently startes at every a time, shorter than the pulse width of a quantitative pulse and then executes a pulse detecting process (step 25), executes an updating lighting process when a rotary pulse signal is detected by a pulse detecting process (step 28) and then moves to a standby state, executes the updating lighting process (step 30) when the pulse signal of a long pulse width is detected and then moves to a sleeve mode, executes an integrating updating process when the quantitative pulse signal is detected by the pulse detection process at thereafter starting time (step 31), then moves to a sleeve state, and moves to the standby state, when the end of the quantitative pulse signal or no signal is detected by the pulse detection processing at the starting time thereafter.
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