8
EB 8392 EN
Attachment to positioners and limit switches
4
Attachment to positioners
and limit switches
The description in section 4.1 and 4.2 ap
-
plies to the following devices:
−
Type 3730 Positioner
−
Type 3731 Positioner
−
Type 3766 Positioner
−
Type 3767 Positioner
−
Type 3768 Limit Switch
Î
Check device index before attachment.
Note:
See the last two figures of the config
-
uration ID written on the nameplate
for the device index.
4.1
Attachment to positioners
and limit switches (device
index .05 and higher)
1. Fasten the reversing amplifier directly to
the positioner/limit switch using two M5
screws.
Î
On mounting the device, make sure that
the two O-rings (1.2 in Fig. 2 left) are in
-
serted properly into their groove.
Tip:
If you lose any O-rings for the revers-
ing amplifier, you can order more
(order number 8421-9064).
4.2
Attachment to positioners
and limit switches (below
device index .05)
Required accessories:
Connecting plate (1400-9621) (2 in Fig. 2)
1. Screw the special nuts (1) included in the
accessories for the connecting plate (2)
into the holes of the positioner.
2. Insert the O-rings (1.2) into the grooves
of the connecting plate (2). Slide the hol
-
low bolts (1.3) into the threaded ports
and fasten tight.
3. Fit O-rings (1.2) on the reversing amplifi
-
er. Place it on the connecting plate (2)
and fasten tight.
4.3
Attachment to Type 3725
Positioner
Required accessories:
Connecting plate (1402-0512) (1 in Fig. 3)
1. Fasten the connecting plate (1) between
the positioner and the reversing amplifier
using two M5 x 50 screws (2).
Note:
The screws supplied with the connect-
ing plate have a TORX PLUS
®
profile
and must be tightened using a suit-
able tool.
