Functional Check; Maintenance And Cleaning - WIKA LH-10 Mode D'emploi

6. Commissioning, operation / 7. Maintenance and cleaning
Load in Ω
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Current output (2-wire):
Current output (3-wire):
Voltage output (3-wire):

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.
7.2 Cleaning
CAUTION!
Prior to cleaning, switch off and disconnect the submersible pressure transmitter from the voltage
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supply.
Clean the instrument with a moist cloth.
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Wash or clean the dismounted instrument before returning it, in order to protect persons and the environ-
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ment from exposure to residual media.
Residual media in dismounted instruments can result in a risk to persons, the environment and
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equipment. Take sufficient precautionary measures.
Do not use any pointed or hard objects for cleaning, as they may damage the diaphragm of the process
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connection.
For information on returning the instrument see chapter 9.2 "Return".
WIKA operating instructions submersible pressure transmitter, model LH-10
≤ (power supply - 10 V) / 0.02 A - (cable length in m x 0.14 Ω)
≤ (power supply - 3 V) / 0.02 A - (cable length in m x 0.14 Ω)
> 100 kΩ
EN
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