Flowserve Logix MD+ ValveSight - Manual (Page 148)

ValveSight™ Diagnostics DTM Manual for Logix MD+ Positioner with HART®
FCD- LGENSF0014-00
© Flowserve Corporation
148
This area allows for the selection of items to be shown on the graph. All of the data is
acquired regardless of this setting. Any item can be hidden or shown after the data has
been downloaded from the positioner.
Monitors
Test Status indicates the current state of the test.
Elapsed Time shows how many seconds have passed since the ramp test began. This
includes time for data acquisition.
Spring Set
The Spring Set box shows information about the spring forces in the actuator.
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.
Spring Rate is the average force divided by the distance traveled during spring
compression.
View Ramp Test
This graph shows the parameters relative to time.