Flowserve ValveSight Diagnostics - Manual (Page 19)

ValveSight Diagnostics for HART User Manual FCD VSENSF0001-02-AQ 03/15
19 flowserve.com
The friction of the valve/actuator assembly is displayed here as indicated on the graph and in the “Nominal Value” and
“Current Value” display boxes. The Current Value is the most recently calculated friction value. A newly calculated friction
value requires that the valve moves a small amount, typical in normal operation. The Nominal Value is the value stored in
memory on the positioner and is updated every 10 minutes. Also shown are the Nominal Supply Pressure and the Actua-
tor Size. The actuator size can be changed in the Configuration>Information>Actuator screen.
The limits can be set to “Tight Tolerance”, “Normal Tolerance”, “Loose Tolerance”, or “No Limits” depending on the appli-
cation. Each option can be selected by clicking the corresponding button. As each option is selected the limits will change
and text will be shown in the Implications box that tells about applications where those limits could be applied.
After selecting one of the 4 options, the limits can still be adjusted individually. Use your mouse to slide the alarm and
warning limit pointers on the graph. You can also click on the arrows next to the value you wish to change. The page up/
down keys and up/down arrow keys will also change the values. After changing the values, press the
Apply button. Press
the Retrieve button to get the limit values currently used in the positioner.
When the DTM views a device that has not been upgraded with Advanced Diagnostics or when the DTM has not been
upgraded, this screen becomes unavailable.
6.3 Positioner Health
This screen displays all of the indicators that determine the positioner health. For each indicator, an Implications and
Possible Solutions button is available. When the button is selected, information regarding that indicator will be displayed
to the right. This page is only available with the Advanced DTM used with a positioner that has been upgraded with Pro
diagnostics.