Wiring Plan, Single Chamber Housing; Wiring Plan, Double Chamber Housing - Siemens SITRANS LG250 Operating Instructions Manual

Electronics and connec-
tion compartment
24
Note:
Solid cores as well as flexible cores with wire end sleeves are insert-
ed directly into the terminal openings. In case of flexible cores without
end sleeves, press the terminal from above with a small screwdriver,
the terminal opening is then free. When the screwdriver is released,
the terminal closes again.
7. Check the hold of the wires in the terminals by lightly pulling on
them
8. Connect the screen to the internal ground terminal, connect the
external ground terminal to potential equalisation
9. Tighten the compression nut of the cable entry gland. The seal
ring must completely encircle the cable
10. Reinsert the display and adjustment module, if one was installed
11. Screw the housing lid back on
The electrical connection is finished.
5.3

Wiring plan, single chamber housing

The following illustration applies to the non-Ex, Ex-ia and Ex-d ver-
sion.
Bus
( )
1
Fig. 14: Electronics and connection compartment - single chamber housing
1 Voltage supply, signal output
2 For display and adjustment module or interface adapter
3 Selection switch for instrument address
4 For external display and adjustment unit
5 Ground terminal for connection of the cable screening
5.4

Wiring plan, double chamber housing

The following illustration applies to the non-Ex, Ex-ia and Ex-d ver-
sion.
SITRANS LG250 - Operating Instructions
0 0 0
+
1 2
5 6 7 8
(-)
2
3
4
5
PBD-51041053