| 摘要 |
PURPOSE:To take a speedy, accurate test through easy operation with simple constitution by comparing output signals of an air flow rate to be tested for respective flow rates set by opening and closing a sound velocity nozzle with the reference values,and deciding on and displaying whether the tested air flow meter is acceptable or not. CONSTITUTION:A cramp button 61 is pressed while a piston is held elevated to fix the body 30 to be tested at a specific position, and an electric output terminal part 31 is connected to a lead wire from a console panel 60. Then when a check start button 63 is pressed, SV meters 241-24n in an SV meter unit 20 are opened and closed according to a specific incorporated sequence to select four kinds of reference flow rate of N01-N04 successively. The measured values of the body 30 for the respective reference flow rates are compared by the airthmetic device in the console panel 60. |
