bürkert 892 Serie Bedienungsanleitung Seite 27

Software Tool - 8x92 / 8x93
Operationandfunction
6.3.3. running the automatic adjustment for TUNE FUNCTIONS
X.TUNE Automatic adjustment of the positioner
PQ-LIN Automatic linearization of the process characteristic
5)
P.TUNE Self-optimization of the process controller
5)
The TUNE FUNCTIONS must be run for a function check of the positioner / process controller to adjust
to specific local features.
Warning!
while the TUNE FUNCTIONS is running, the valve automatically moves from its current position!
• Never run TUNE FUNCTIONS while a process is running!
• Take appropriate measures to prevent the system / positioner / process controller from being unintentionally
actuated!
noTe!
avoid maladjustment of the controller due to an incorrect compressed air supply or applied operating
medium pressure!
• Run TUNE FUNCTIONS whenever the compressed air supply (= pneumatic auxiliary energy) is available
during subsequent operation.
• Run the TUNE FUNCTIONS function preferably without operating medium pressure to exclude interference
caused by flow forces.
Figure 21: Starting TUNE FUNCTIONS
only with process controller Type 8693 and 8793
5)
Set up connection
English
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