Reset; Reset To Factory Settings; X.tune; Automatic Adjustment Of The Positioner To The Relevant Operating Conditions - Burkert 8791 Manuel D'utilisation

10.1.5 RESET -

reset to factory settings
This function can be used to reset the positioner to the factory settings.

10.1.6 X.TUNE -

automatic adjustment of the positioner to the relevant
operating conditions
The X.TUNE function must be run for a function check of the positioner to adjust to specific local features.
Warning!
While the X.TUNE function is running, the valve automatically moves from its current position.
▶ Never run X.TUNE while a process is running.
▶ Take appropriate measures to prevent the system / positioner from being unintentionally actuated.
noTE!
avoid maladjustment of the controller due to an incorrect compressed air supply or applied operating
medium pressure.
▶ Run X.TUNE whenever the compressed air supply (= pneumatic auxiliary energy) is available during subse-
quent operation.
▶ Run the X.TUNE function preferably without operating medium pressure to exclude interference caused by
flow forces.
To run X.TUNE, the positioner must be in the AUTOMATIC operating state (DIP switch 4 = OFF).
→
Set up TUNE / TUNE Functions.
→
Start X.TUNE. To do this, click „Start X.TUNE"
The progress of X.TUNE is shown in the communication software:
When the automatic adjustment completes, a message appears.
The changes are automatically transferred to the positioner's memory (EEPROM) after the X.TUNE function is
successful.
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Type 8791
Functions