Electrical Mounting; Connection Assembly; Pin Assignment - WIKA LH-10 Mode D'emploi

6.2 Electrical mounting

6.2.1 Connection assembly

Use the submersible pressure transmitter with shielded cable and ground the shield on at least one end of the lead,
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if the lines are longer than 30 m or leave the building.
EN
When the shield of the cable is being connected, no potential differences should exist between the medium, the
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vessel and the ground connection of the junction box or the control cabinet.
Make sure that no moisture enters at the cable end.
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6.2.2 Pin assignment

Cable outlet
6.2.3 Setting up a voltage supply
The power supply for the instrument must be made via an energy-limited electrical circuit in accordance with section
9.4 of UL/EN/IEC 61010-1, or an LPS to UL/EN/IEC 60950-1 / CSA C22.2 No.60950-1, or class 2 in accordance with
UL1310/UL1585 (NEC or CEC). The power supply must be suitable for operation above 2,000 m should the instrument
be used at this altitude.
Power supply
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The power supply depends on the selected output signal.
4 ... 20 mA:
0 ... 20 mA:
DC 0 ... 5 V:
DC 0 ... 10 V:
DC 0.5 ... 2.5 V: DC 5 ... 30 V (suitable for battery operation)
12
2-wire
brown
U
+
U - green
-
S
+
Shield grey
DC 10 ... 30 V
DC 10 ... 30 V
DC 10 ... 30 V
DC 14 ... 30 V
WIKA operating instructions submersible pressure transmitter, model LH-10
3-wire
brown
green
white
grey