Samson TROVIS 3730-1 - 8.4 Initialization

EB 8484-1 EN 79
Operating the positioner
The signal pressure is the pneumatic pressure at the output of the positioner applied to the
actuator.
Fail-safe position set: ATO. To change the direction of action:
Î Enable conguration (section8.1).
1. Turn
until CodeP3 appears.
2. Press
to conrm the selected code. P3 blinks.
3. Turn
to set the fail-safe position (ATO or ATC).
4. Press
to conrm the selected fail-safe position.
For checking purposes: After successfully completing initialization, the positioner display
mustread0%whenthevalveisclosedand100%whenthevalveisopen.
The changed fail-safe position rst becomes effective after the positioner has been re-initial-
ized.
8.4 Initialization
During initialization the positioner adapts itself optimally to the friction conditions and the
signal pressure required by the control valve.
Risk of personal injury due to moving parts on the valve.
During initialization, do not insert hands or ngers into the valve yoke and do not touch any
moving valve parts.
Do not block the actuator stem.
The process is disturbed by the movement of the actuator stem.
Do not initialize the positioner while the process is running and only after isolating the plant
by closing the shut-off valves.
Note
WARNING
!
NOTICE
!