GE SVI II AP Quick Start Manual page 51

Auto Tune
This process takes 3 to 10 minutes and strokes the valve in large and small steps to set the PID
parameters for best positioning response.
WARNING
To auto tune the SVI II AP:
1. Press *to begin the autoTUNE procedure.
As autoTUNE proceeds, numerical messages display, indicating the procedure is
working.
2. When autoTUNE is complete, TUNE appears.
3. Press + repeatedly until  SETUP appears.
4. Press * to return to SETUP menu;
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DO NOT perform STOPS while the valve is controlling the process.
DO NOT perform Auto Tune while the valve is controlling the
process.

CALIB appears.
. Masoneilan SVI II AP Digital Positioner Quick Start Guide =| 51