Technical Specifications

© 2014 General Electric Company. All rights reserved.
Masoneilan Valves ValVue ESD Instruction Manual =
| 119
Trend
What you can do on the Trend Screen
From the Trend screen (Figure 98) you can observe the performance of the valve in real time.
These process trend graphs are useful for troubleshooting a control valve and for tuning the PID
positioning parameters. The process trend graphs may be only on the Y axis.
The process trend graph can be detached as a separate window from the tabbed dialog so that
it can be viewed while performing calibration and diagnostic tasks. To detach the trend:
 Right-click in any screen select Detach Trend.
When in manual mode, the bar indicator allows you to change the valve position by dragging
the position indicator.
Figure 98 Trend Screen Displaying All Parameters