| 摘要 |
PROBLEM TO BE SOLVED: To easily execute the setting of a flow rate including the setting of an operation mode. SOLUTION: When the depression time of a RUN switch 54-1 is shorter than 2 sec and a preceding mode is not a fully closed mode, the fully closed mode is selected the fully closed mode state is displayed, and when the preceding mode is the fully closed mode, a control mode is selected and the control mode state is displayed. When the depression time of the RUN switch 54-1 is longer than 2 sec, a fully opened mode is selected and the fully opened mode state is displayed.
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