Samson 5824 Mounting And Operating Instructions page 46

Operation
Note
The positioning of the valve is affected when
the handwheel is operated while the process
is running. As a result, zero point and the
position feedback do not match the calibrat-
ed values. Zero calibration, initialization or
a transit time measurement must be per-
formed again.
Type 5825 Actuator
The front cover must be opened before man-
ually adjusting the actuator stem. The stem
can be moved manually one millimeter by
turning the actuating shaft approx. 4 turns
using an Allen key.
DANGER
!
Risk of electric shock from exposed live
parts.
Î Do not touch live parts on operating the
manual override.
1. Unscrew front cover and place a 4 mm
Allen key on the red actuating shaft.
NOTICE
!
Risk of damage to the actuator by turning it
too far.
Î Only extend or retract the actuator stem
as far as the final travel value.
2. Use the Allen key to turn the actuating
shaft:
Î Turn it counterclockwise only for a ver-
sion with fail-safe action "actuator stem
extends".
8-4
Î Turn it clockwise only for a version with
fail-safe action "actuator stem retracts".
3. Turn the Allen key only as far as the final
travel value, which is at the point where
the torque-dependent limit switch is acti-
vated.
Î Once the magnet has been released, the
spring mechanism pushes the actuator
stem back to the fail-safe position.
4. Remove Allen key and carefully refasten
the front cover.
Fig. 8-3: Type 5825 Electric Actuator
EB 5824-2 EN