WIKA GDS-RC-HV Betriebsanleitung Seite 20

7. Maintenance, cleaning and recalibration
The instruments must not be opened, since this can lead to indication and switch point
errors.
7.2 Cleaning
EN
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.
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1. Before cleaning, correctly disconnect the instrument from the pressure supply and
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!
CAUTION!
Damage to the instrument
Improper cleaning may lead to damage to the instrument!
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4. Wash or clean the dismounted instrument, in order to protect persons and the
environment from exposure to residual media.
Information on returns can be found under the heading "Service" on our
local website.
7.3 Calibration
The gas density switch can be calibrated via a special calibration system for gas density
measuring instruments (e.g. WIKA BCS-10).
The gas density switch with test connection and shut-off valve can be isolated from the
gas compartment using the shut-off valve, without the gas density switch needing to be
dismounted. With gas density switchs that do not offer a test connection and shut-off
valve, the gas density switch must be dismounted professionally. In this case, it may be
necessary to take the entire system temporarily out of service.
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Carry out the cleaning process as described below.
Do not use any aggressive cleaning agents.
Do not use any hard or pointed objects for cleaning.