Samson 3730-2 - Limiting the Signal Pressure

98 EB 8384-2 EN
Operating the positioner
7.4 Limiting the signal pressure
If the maximum actuator force may cause damage to the valve, the signal pressure must be
limited.
Î Donotactivatepressurelimitationfordouble-actingactuators(AIRTOOPEN(AtO)fail-
safe position). Default setting is 'No'.
Enablecongurationatthepositionerbeforelimitingthesignalpressure.
Enable conguration:
Ifnosettingsareenteredwithin120seconds,theenabledcongurationfunctionbecomesin-
valid.
1. Turn untilCode3appears(reading:
No).
2. Press , the code number 3 blinks.
3. Turn
until YES appears.
4. Press
toconrm(reading: ).
Enableconguration
Default: No
Limit the signal pressure:
1. Turn untilCode16appears.
2. Press
, the code number 16 blinks.
3. Turn
until the required pressure limit
(1.4/2.4/3.7bar)appears.
4. Press toconrm.
Pressure limit
Default: No
7.5 Checking the operating range of the positioner
To check the mechanical attachment and the proper functioning, the valve should be moved
through the operating range of the positioner in the
manual mode with the manual set
point.