21
In the plant:
Wiring the conductivity electrode / transmitter
Connecting conductivity electrode LRG 12-2, LRG 16-4, LRG 17-1 and LRG 19-1,
resistance thermometer TRG 5-..
To connect the equipment use screened multi-core control cable with a min. conductor size 0.5 mm
2
,
e.g. LiYCY 4 x 0.5 mm
2
. Wire terminal strip in accordance with the wiring diagram.
Fig. 7.
Connect the
screen only once to the central earthing point (CEP) in the control cabinet.
Max. cable length between conductivity electrode / resistance thermometer and conductivity
controller: 30 m, with conductivities from 1 to 10 μS/cm: max. 10 m.
Make sure that connecting cables leading to the equipment are segregated and run separately from
power cables.
The conductivity electrode LRG 16-9 is equipped with a sensor plug-in connection type M 12, with 5
poles, A-coded, pin assignment see
Fig. 7.
For connecting the equipment control cable assemblies
(with male and female connectors) of various lengths are available as add-on equipment.
Note that the recommended control cable is not UV-resistant and, if installed outdoors, must be
protected by a UV-resistant plastic tube or cable duct.
To connect the conductivity controller LRR 1-52, LRR 1-53 remove the connector and wire the terminal
strip according to the wiring diagram.
Fig. 7.
Connect the screen only once to the central earthing point
(CEP) in the control cabinet.
If you do not use the prefabricated control cable assembly, use screened five-core control cable, e. g.
LiYCY 5 x 0.5 mm
2
,
for connecting the equipment. In addition, connect at the electrode end a screened
female connector to the control cable.
Max. cable length between conductivity electrode and controller: 30 m, with conductivities from
1 to 10 μS/cm: max. 10 m.
Make sure that connecting cables leading to the equipment are segregated and run separately from
power cables.
Connection of conductivity electrode LRG16-9
Attention
n
To commission the equipment please refer to the installation & operating manuals for
LRG 12-2, LRG 16-4, LRG 16-9, LRG 17-1, LRG 19-1, TRG 5-.. and LRGT 1.-..
n
Make sure that connecting cables leading to the equipment are segregated and run
separately from power cables.
n
Check the connection of the screen to the central earthing point (CEP) in the control
cabinet.
n
The conductivity transmitter must be separately connected to its own voltage supply.
Connection of conductivity transmitter LRGT 1.-..
To connect the equipment use screened multi-core control cable with a min. conductor size 0.5 mm
2
,
e. g. LiYCY 4 x 0.5 mm
2
, max. length: 100 m.
Wire terminal strip in accordance with the wiring diagram.
Fig. 8
Wire screen in accordance with the wiring diagram.
Make sure that connecting cables leading to the equipment are segregated and run separately from
power cables.
Summary of Contents for LRR 1-52
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