Yokogawa YVP20S - Manual (Page 134)

14-8
<Toc> <Ind> <14. DIAGNOSTIC SERVICES>
IM 21B04C50-01E
• Measurement of Spring Range and Valve Friction
To view the results, click Edit on the menu bar and select the signature graph type, and then
a pop-up menu will be shown. Also, you can move the cursor to the area of signature graph
and make a right click for editing oreration in a pop-up menu. Select and click Result
Analysis to see the measured spring range and valve friction. The valve friction means the
half of valve hysteresis.
Figure 14.8 Pop-up menu for editing graph
Figure 14.9 Measurement of Spring Range and Valve Friction