Samson 3730-4 - Mounting the Position Sensor with Direct Attachment

EB 8384-4 EN 41
Attachment to the control valve – Mounting parts and accessories
4.7.1 Mounting the position
sensor with direct at-
tachment
Type3277-5 Actuator with 120cm²
(Fig.15)
The signal pressure from the positioner is
routed over the signal pressure connection of
the connecting plate (9, Fig.15 left) to the
actuator diaphragm chamber. To proceed,
rst screw the connecting plate (9) included
in the accessories onto the actuator yoke.
− Turn the connecting plate (9) so that the
correct symbol for the fail-safe action
"actuator stem extends" or "actuator stem
retracts" is aligned with the marking
(Fig.15, below).
− Make absolutely sure that the gasket for
the connecting plate (9) is correctly insert-
ed.
− The connecting plate has threaded holes
with NPT and G threads. Seal the thread-
ed connection that is not used with the
rubber seal and square plug.
20
21
9
11
1.1
1.2
3
2
1
Actuator stem
extends retracts
Signal pressure
Signal pressure
Vent plug
Symbol
Marking
1 Lever
1.1 Nut
1.2 Disk spring
2 Follower pin
3 Follower clamp
9 Connecting plate
11 Cover
20 Position sensor
21 Mounting plate
Fig.15: Mounting for Type3277-5 Actuator (left) and Type3277 Actuator (right)