Maintenance, Cleaning And Calibration; Maintenance; Cleaning - WIKA PGU23.100 Operating Instructions Manual

7. Maintenance, cleaning and calibration

7. Maintenance, cleaning and calibration
Personnel: Skilled personnel
For contact details, see chapter 1 "General information" or the back page of
the operating instructions.
7.1

Maintenance

The instrument is maintenance-free.
Repairs must only be carried out by the manufacturer.
Testing of the display function
The indicator should be checked once or twice every year. For this the instrument must
be disconnected from the process to check with a pressure testing device.
Testing of filled instruments
For filled instruments, the level must be checked once or twice every year.
The liquid level must not drop below 75 % of the instrument diameter.
7.2

Cleaning

CAUTION!
Physical injuries and damage to property and the environment
Improper cleaning may lead to physical injuries and damage to property and
the environment. Residual media at the dismounted instrument can result in a
risk to persons, the environment and equipment.
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Use the requisite protective equipment.
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Carry out the cleaning process as described below.
1. Before cleaning, correctly disconnect the instrument from the pressure supply and, if
required, deactivate the data transfer from the radio unit during cleaning.
2. Clean the instrument with a moist cloth.
If the radio unit is disconnected from the pressure gauge, the electrical connection
must not come into contact with moisture.
CAUTION!
Damage to the instrument
Improper cleaning may lead to damage to the instrument!
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Do not use any aggressive cleaning agents.
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Do not use any hard or pointed objects for cleaning.
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Do not use solvents or abrasives for cleaning.
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Do not use dry cloths.
WIKA operating instructions, models PGU23.100 and PGU26.100
EN
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