Samson 3725 - Manual mode

58 EB 8394 EN
Operating the positioner
7.9.1 Canceling zero calibration
Zero calibration can be canceled:
1. During zero calibration touch
: ESC blinks on the display.
2. Press
to conrm: Zero calibration is canceled.
This code must be conrmed by pressing
. Otherwise, the code remains active.
The positioner changes to closed-loop operation without performing a zero calibration. A
new zero calibration can be started directly afterwards.
7.10 Manual mode
The valve position can be moved as follows using the Manual mode function:
%
Enable conguration as described in section7.2.
1. Touch
or until Code P17 appears.
2. Press
and hold for six seconds. 6-5-4-3-2-1- is counted down
on the display and P17 blinks.
The manual set point is indicated on the display of an initialized
positioner.
The lever position in degrees in relation to the longitudinal axis is
indicated on the display of a positioner that has not been initial-
ized.
3. Touch
or to change the manual set point.
Initialized positioner
The manual mode starts using the last set point used in closed-loop operation , ensuring a
bumpless changeover.
The bar elements on the display indicate the system deviation between the manual set point
and set point used for closed-loop control while manually moving the valve in Code P17.
The manual set point is adjusted in steps of 0.1 %. You can move the valve controlled within its
range.
Note