12
WIKA operating instructions submersible pressure transmitter, model LH-10
14075011.03 07/2016 EN/DE/FR/ES
EN
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,
if the lines are longer than 30 m or leave the building.
■
When the shield of the cable is being connected, no potential differences should exist between the medium, the
vessel and the ground connection of the junction box or the control cabinet.
■
Make sure that no moisture enters at the cable end.
6.2.2 Pin assignment
Cable outlet
2-wire
3-wire
U
+
brown
brown
U-
green
green
S
+
-
white
Shield
grey
grey
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
The power supply depends on the selected output signal.
4 ... 20 mA:
DC 10 ... 30 V
0 ... 20 mA:
DC 10 ... 30 V
DC 0 ... 5 V:
DC 10 ... 30 V
DC 0 ... 10 V:
DC 14 ... 30 V
DC 0.5 ... 2.5 V: DC 5 ... 30 V (suitable for battery operation)
Summary of Contents for LH-10
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