Cleaning - WIKA TGT73.100 Betriebsanleitung

8. Maintenance and cleaning
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.
WARNING!
Danger to life due to impermissible filling/refilling of the
instrument with loss of explosion protection
The filling/refilling of instruments by non-authorised
personnel leads to a loss of the explosion protection and can
lead to damage to the instrument.
▶
Repair of the instruments may only be carried out by
authorised bodies.
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If a return is needed, please follow the instructions given
in chapter 9.2 "Return".
Repairs must only be carried out by the manufacturer.

8.2 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 persons, the
environment and equipment.
▶
Carry out the cleaning process as described below.
1. Before cleaning, correctly disconnect the instrument from the
pressure supply, switch it off and disconnect it from the mains.
2. Use the requisite protective equipment.
3. Clean the instrument with a moist cloth.
Electrical connections must not come into contact with moisture!
WIKA operating instructions model TGT73 (Ex)
EN
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