Samson TROVIS 3730-1 Translation Of Original Instructions page 62

Installation
8. Stick the scale plate (4.3) on the coupling
wheel so that the arrow tip indicates the
closed position and it can be easily read
when the valve is installed.
a) Heavy-duty version
Note
We recommend using a volume restriction
(see section 5.5) for actuators with a volume
of less than 300 cm³.
Î See Fig. 5-25
Î Required mounting parts and accesso-
ries: Table 5-10 on page 5-43.
Both mounting kits contain all the necessary
mounting parts. The parts for the actuator
size used must be selected from the mount-
ing kit.
Prepare actuator and mount possibly re-
quired adapter supplied by the actuator
manufacturer.
1. Seal the signal pressure output at the
back of the positioner with the screw
plug (4, order no. 0180-1254) and the
associated O-ring (order no. 0520-
0412) if the screw plug is not yet in
place.
2. Mount the housing (10) onto the rotary
actuator. In case of VDI/VDE attachment,
place spacers (11) underneath, if neces-
sary.
5-28
3. For SAMSON Type 3278 and VETEC
S160 Rotary Actuators, fasten the
adapter (5) onto the free end of the shaft
and for VETEC R Actuator, place on the
adapter (5.1). For Type 3278, VE-
TEC S160 and VETEC R Actuators, place
on the adapter (3). For Type 3278, VE-
TEC S160 and VETEC R Actuators, place
on the adapter (3). For VDI/VDE version,
this step depends on the actuator size.
4. Stick adhesive label (4.3) onto the cou-
pling in such a manner that the yellow
part of the sticker is visible in the window
of the housing when the valve is OPEN.
Adhesive labels with explanatory sym-
bols are enclosed and can be stuck on
the housing, if required.
5. Fasten coupling wheel (4) on the slotted
actuator shaft or adapter (3) using screw
(4.1) and disk spring (4.2).
Fig. 5-24: Direction of rotation
Actuator turning
counterclockwise
1
10
4
Actuator turning
clockwise
EB 8484-1 EN