Instruction Manual
D103409X012
Basic Setup
May 2013
45
Stabilizing/Optimizing Valve Response
Field Communicator
Hot Key > Stabilize/Optimize (Hot Key‐4)
Instrument level HC only
Configure > Guided Setup > Stabilize/Optimize (1‐1‐2)
Note
Stabilize/Optimize is available for instrument level HC, AD, PD, and ODV.
WARNING
During Stabilize/Optimize the valve may move, causing process fluid or pressure to be released. To avoid personal injury
and property damage caused by the release of process fluid or pressure, isolate the valve from the process and equalize
pressure on both sides of the valve or bleed off the process fluid.
If after completing setup and calibration the valve seems slightly unstable or unresponsive, you can improve operation
by pressing the Hot Key and selecting Stabilize/Optimize, or select Stabilize/Optimize from the Guided Setup menu (for
instrument level HC only). Stabilize/Optimize can be accessed through the Detailed Setup menu for instrument level AD,
PD, and ODV.
Stabilize/Optimize permits you to adjust valve response by changing the digital valve controller
If the valve is unstable, select Decrease Response to stabilize valve operation. This selects the next lower tuning set
(e.g., F to E). If the valve response is sluggish, select Increase Response to make the valve more responsive. This selects
the next higher tuning set (e.g., F to G).
If after selecting Decrease Response or Increase Response the valve travel overshoot is excessive select Decrease Damping
to select a damping value that allows more overshoot. Select Increase Damping to select a damping value that will
decrease the overshoot. When finished, select Done.
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