Samson 3766 - Page 43

EB 8355-1 EN 43
Operation
Adjusting the switching point
Move the valve to the switching point and
adjust the tag by turning the adjustment
screw(53)sothattheswitchingpointis
reached and indicated by the LED on the
switchingamplier.
To guarantee the switching under all ambient
conditions, adjust the switching point ap-
prox.2%beforethemechanicalstop
(OPEN/CLOSED).
After tuning the positioner, make sure that
the vent plug of the housing cover faces
downward when the valve is installed.
NOTICE
!
Table8: Direct attachment to Type3277 Actuator (Fig.2)
Left attachment Right attachment
Switch
Valve position Tag outside inductive
eld
Tag inside inductive
eld
Tag outside inductive
eld
Tag inside inductive
eld
Closed B A A B
Open A B B A
Table9: Right or left attachment according to NAMUR (Fig.5) and attachment to rotary actuators (Fig.7)
Direction
of action
Valve
position
Actuator stem extends (FA) Actuator stem retracts (FE)
Switch
Tag
Switch
Tag
Outside inductive
eld
Insideinductiveeld
Outside inductive
eld
Insideinductiveeld
>> Closed
Open
B
A
A
B
A
B
B
A
<> Closed
Open
A
B
B
A
B
A
A
B