Samson 3725 Mounting And Operating Instructions page 30

Mounting and start-up
8. Mount cover (11) on the other side.
Make sure that the vent plug is located at
the bottom when the control valve is in-
stalled to allow any condensed water
that collects to drain off (Fig. 7).
Cover
Fig. 7: Cover with vent plug when the valve is
installed
30
Additional solenoid valve
If a solenoid valve is additionally mounted
onto the actuator, the signal pressure port at
the back of the positioner must be sealed
(see Fig. 8). To do this, unscrew the screw
plug located in the middle hole (screw plug
in park position) and screw it into the signal
pressure port to seal it.
In this case, route the signal pressure from
the signal pressure output to the actuator
over the connecting plate (6) or pressure
gauge bracket (7). The connecting plate (ac-
cessories for the actuator) replaces the swi-
tchover plate (9).
The switchover plate and connecting plate
are accessories for the actuator (120 cm²).
They are listed in section 3.2 on page 16.
Vent plug
Note
EB 8394 EN