Samson 373 Series User Manual

EB 8384-2 EN 79
Mounting and start-up
5.12 Retrotting an inductive
limit switch
Required retrot kit:
Limit switch Order no. 1402-1770
The same requirements apply to retrotting a
unit as to servicing the positioner. For explo-
sion-protected positioners, the requirements
in Servicing explosion-protected devices
need to be kept. Check the "Limit switch, in-
ductive" box on the nameplate after install-
ing the limit switch.
1. Take off the rotary pushbutton (3) and cap
(1),unthreadthevefasteningscrews(2)
and lift off the plastic cover (9) together
with the display, taking care not to dam-
age the ribbon cable (between PCB and
display).
2. Use a knife to cut an opening at the
marked location (4).
3. Push the connector (11) with cable
through the opening and secure the prox-
imity switch (7) on the cover with a dot of
glue.
4. RemovethejumperatthesocketX7ofthe
top board and insert the cable connector
(11).
5. Guide the cable in such a manner that the
plastic cover can be placed back onto the
positioner.Insertthexingscrews(2)and
screw tight. Attach the clamping plate (8)
onto the proximity switch.
6. Attach the rotary switch (5). Make sure
theattenedsideofthepositionershaftis
turned so that the rotary switch (5) can be
attached with the metal tag next to the
proximity switch.
7. On start-up of the positioner, set the op-
tioninductivealarmunderCode38from
No to YES.
1
2
3
4
5
8
6
7
9
7
Socket X7 (11)
1 Cap 6 Metal tag
2 Screw 7 Proximity switch
3 Rotarypushbutton 8 Clamping plate
4 Marking 9 Plastic cover
5 Rotaryswitch 11 Connector
Fig.31: Retrotting an inductive limit switch
Note

Samson 373 Series Specifications

General

Brand	Samson
Model	373 Series
Category	Valve Positioners
Language	English