Maintenance, Cleaning And Recalibration - WIKA GDM-100-T Betriebsanleitung

7. Maintenance, cleaning and recalibration

7. Maintenance, cleaning and recalibration
7.1 Maintenance
This instrument is maintenance-free.
EN
Repairs must only be carried out by the manufacturer.
The instruments must not be opened, since this can lead to indication and switch point
errors.
7.2 Cleaning
1. Before cleaning, correctly disconnect the instrument from the pressure supply and
switch off the current.
2. Use the requisite protective equipment.
3. Clean the instrument with a moist cloth.
Electrical connections must not come into contact with moisture!
4. Wash or clean the dismounted instrument, in order to protect people and the environ-
ment from exposure to residual decomposition products.
7.3 Calibration
With regard to switchgear safety, asset protection and environmental protection, it is
common to perform functional checks of the measuring instruments on a regular basis.
Article 5 of EU regulation No. 517/2014 on fluorinated greenhouse gases, provides for
checking of the leakage detection system at least every 6 years if it contains more than
22 kg SF₆ gas and the plant was commissioned after 1st January 2017.
With the help of the optional, permanently welded recalibration valve, the gas density
monitor can be shut off from the process and recalibrated without having to disassemble it.
30
CAUTION!
Physical injuries and damage to property and the environment
Improper cleaning may lead to physical injuries and damage to property
and the environment. Decomposition products in the dismounted instru-
ment can result in a risk to persons, the environment and equipment.
▶
Carry out the cleaning process as described below.
CAUTION!
Damage to the instrument
Improper cleaning may lead to damage to the instrument!
▶
Do not use any aggressive cleaning agents.
▶
Do not use any hard or pointed objects for cleaning.
Information on returns can be found under the heading "Service" on our
local website.
WIKA operating instructions, model GDM-100-T