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73
Start-up
16
START-UP
16.1
Safety instructions
WARNING!
Risk of injury due to improper operation.
Improper operation may result in injuries as well as damage to the device and the area around it.
▶
Before start-up, ensure that the operating personnel are aware of and have completely understood the
contents of the operating instructions.
▶
The safety instructions and the intended use must be observed.
▶
Only adequately trained personnel may start up the system/device.
16.2
Defining base settings
The base settings of the positioner are configured in the factory.
To adapt the positioner to the local conditions, the
X.TUNE
function must be executed after installation.
16.2.1
Execute the
X.TUNE
automatic adjustment
WARNING!
Risk from changing the valve position when executing the
X.TUNE
function.
If
X.TUNE
is operated under operating pressure there is an acute risk of injury.
▶
Never execute X.TUNE
when a process is running.
▶
Secure the system against unintentional activation.
NOTE!
Avoid incorrect controller adjustment from incorrect supply pressure or activated operating medium
pressure.
▶
Always
execute
X.TUNE
in case of supply pressure (pneumatic auxiliary power) present in later
operation.
•
Ideally, execute the
X.TUNE
function
without
operating medium pressure to prevent interference as a
result of flow forces.
→
Unscrew the four screws on the housing cover and remove the housing cover.
To execute
X.TUNE
the positioner must be in AUTOMATIC operating state
(DIP switch 4 = OFF).
Type 8791, REV.2
english
Содержание 8791 REV.2
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