Yokogawa YVP20S User Manual

Page 134

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14-8

<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