Maintenance, Cleaning And Recalibration - WIKA GDM-100-TI Mode D'emploi

7. Maintenance, cleaning and recalibration

7. Maintenance, cleaning and recalibration
7.1 Maintenance
These gas density monitors are maintenance-free.
The indication and switching function should be checked once or twice every year. For
this the instrument must be disconnected from the gas compartment to check with a
pressure testing device.
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
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.
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!
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.
4. Wash or clean the dismounted instrument, in order to protect people and the environ-
ment from exposure to residual decomposition products.
Information on returns can be found under the heading "Service" on our
local website.
7.3 Calibration
The gas density monitor can be calibrated via a special calibration system for gas densi-
ty measuring instruments (e.g. WIKA BCS-10).
The gas density monitor must be dismounted professionally. In this case, it may be
necessary to take the entire system temporarily out of service.
WIKA operating instructions, models GDM-100-TI, GDM-100-TA
EN
19