Flowserve Logix MD+ ValveSight - Manual (Page 157)

ValveSight™ Diagnostics DTM Manual for Logix MD+ Positioner with HART®
FCD- LGENSF0014-00
© Flowserve Corporation
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Graph Settings
This area allows for the selection of items to be shown on the graph. You can select
between data sets from file 1, file 2, and the differences.
Spring Set
The Spring Set box shows information about the spring forces in the actuator.
Spring Rate is the average force divided by the distance traveled during spring
compression.
Spring Initial is the pressure required to initially move the valve as the valve is beginning to
compress the spring.
Spring Final is the pressure required position the valve at the end of travel where the spring
is fully compressed.
Ramp Test Settings
The Ramp Test Settings area contains the information used to run the ramp test and other
information that may affect the results. This information is shown for each file in a side-by-
side comparison. Where settings differ, the name is highlighted.