Wika LS-10 User Manual download pdf (Page 12)

12 WIKA operating instructions submersible pressure transmitter, model LS-10

14075012.01 08/2013 GB/D/F/E

6. Commissioning, operation / 7. Maintenance and cleaning

6.2.2 Pin assignment

Cable outlet

brown

green

Shield grey

6.2.3 Setting up a voltage supply

The power supply for the pressure transmitter must be made via an energy-limited electrical circuit in accordance with

section 9.3 of UL/EN/IEC 61010-1, or an LPS to UL/EN/IEC 60950-1, or (for North America) class 2 in accordance with

UL1310/UL1585 (NEC or CEC). The power supply must be suitable for operation above 2,000 m should the pressure

transmitter be used at this altitude.

■

Power supply:

DC 10 ... 30 V

■

Load in Ω

≤ (power supply - 10 V) / 0.02 A - (cable length in m x 0.14 Ω)

6.3 Functional check

The output signal must be proportional to the prevailing pressure. If this is not the case, this may indicate a damaged

diaphragm. In this case, see chapter 8 “Faults”.

7. Maintenance and cleaning

7.1 Maintenance

This submersible pressure transmitter is maintenance-free.

Repairs must only be carried out by the manufacturer.

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Wika LS-10 User Manual Page 12