Zero Calibration; Initializing The Actuator - Samson 3374 Series Mounting And Operating Instructions

8.4.1

Zero calibration

WARNING
!
Risk of injury due to the actuator stem extending or retracting.
Î Do not touch or block the actuator stem.
NOTICE
!
The process is disturbed by the movement of the actuator stem.
Î Do not perform the zero calibration while the process is running. First isolate the plant by
closing the shut-off valves.
The actuator stem moves to the 0 % end position. Following this, the actuator changes to
closed-loop operation and moves the actuator stem to the position defined by the input sig-
nal.
Code Description
d51 Start zero calibration
Î Zero calibration can be canceled at all times by selecting ESC.
8.4.2

Initializing the actuator

WARNING
!
Risk of injury due to the actuator stem extending or retracting.
Î Do not touch or block the actuator stem.
NOTICE
!
The process is disturbed by the movement of the actuator stem.
Î Do not perform the initialization while the process is running. First isolate the plant by
closing the shut-off valves.
Î The procedure is described in the 'Start-up and configuration' section.
Code Description
d52 Start initialization
EB 8331-4 EN
Adjustment range
ZER
WE Adjustment range
INI
Operation
8-9