Initialization - Samson 3730-5 Mounting And Operating Instructions

Press . The positioner changes to the man-
ual mode ( ).
Check the operating range:
Turn  Code 1
Press , Code 1 and
Turn until the pressure in the positioner
builds up, and the control valve moves to its
final positions so that the travel/angle can
be checked.
The angle of rotation of the lever on the back
of the positioner is indicated. A horizontal
lever (mid position) is equal to 0°.
To ensure the positioner is working proper-
ly, the outer bar elements must not blink
while the valve is moving through the operat-
ing range.
Exit Code 1 by pressing the rotary pushbut-
ton ( ).
The permissible range has been exceeded
when the displayed angle is more than 30°
and the outer right or left bar element blinks.
The positioner goes to the fail-safe position
(SAFE).
After canceling the fail-safe position (SAFE)
(see section 8.2.2) it is absolutely essential
that you check the lever and pin position as
described in section 4.
EB 8384-5 EN
Manual set point w
(current angle of rotation is
indicated)
blink.
WARNING!
Risk of injury due to the actuator
stem extending or retracting.
Before exchanging the lever or
changing the pin position, disconnect
the supply air and electrical auxiliary
power.

7.6 Initialization

NOTICE
The process is disturbed by the move-
ment of the actuator stem.
Do not initialize the positioner while
the process is running; only perform
an initialization during start-up with
the shut-off valves closed.
A signal pressure above the maximum
permissible limit will damage the
valve.
Check the maximum permissible sig-
nal pressure of the control valve be-
fore starting initialization. If neces-
sary, limit the signal pressure by con-
necting an upstream pressure reduc-
ing valve.
Malfunction due to changed mount-
ing or installation circumstances.
Reset the positioner to its default set-
tings and re-initialize it after the posi-
tioner has been mounted on to anoth-
er actuator or its mounting location
has been changed.
During initialization the positioner adapts it-
self optimally to the friction conditions and
Start-up and settings
65