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31076041.02 09/2015 EN/DE/FR/ES
EN
WIKA operating instructions optoelectronic level switches, models OLS-C
7. Maintenance and cleaning
For contact details, please see chapter 1 “General
information” or the back page of the operating
instructions.
7.1 Maintenance
The optoelectronic level switches work maintenance-free in normal
operation. They must be subjected to visual inspection within the
context of regular servicing, however, and included in the tank
pressure test.
Repairs must only be carried out by the manufacturer.
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 in the dismounted instrument can result in a risk
to personnel, the environment and equipment.
▶
Rinse or clean the removed instrument.
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Sufficient precautionary measures must be taken.
1. Prior to cleaning, properly disconnect the instrument from the
process and the power supply.
2. Clean the instrument carefully with a moist cloth.
3. Electrical connections must not come into contact with moisture!
▶
CAUTION!
Damage to property
Improper cleaning may lead to damage to the
instrument!
▶
Do not use any aggressive cleaning agents.
▶
Do not use any pointed and hard objects for cleaning.
7. Maintenance and cleaning
