4.5. Maintenance Activities
Maintenance activities:
1. Disassemble the weighing pan and other detachable components (the components
differ depending on the weighing instrument model, read section: UNPACKING AND
INSTALLATION). Be careful while installing the components so as not to cause any
damage to the moisture analyzer mechanism.
2. In order to ease cleaning of glass anti-draft chamber panes, it is permissible to remove
them following the below instruction.
Caution:
In case of heavy dust occurring at the place of moisture analyzer operation, it is
recommended to commission an inspection of the device to be carried out by RADWAG
service every 6 months.
Cleaning the weighing pan while still installed may cause damage of the measuring system.
Cleaning ABS components:
To clean dry surfaces and avoid smudging, use clean non-colouring cloths made of cellulose
or cotton. You can use a solution of water and detergent (soap, dishwashing detergent, glass
cleaner). Gently rub the cleaned surface and let it dry. Repeat cleaning process if needed.
In the case of hard to remove contamination, e.g. residues of adhesive, rubber, resin,
polyurethane foam etc., you can use a special cleaning agents based on a mixture of
aliphatic hydrocarbons that do not dissolve plastics. Before using the cleanser for all
surfaces we recommend carrying out tests. Do not use cleansers containing abrasive
substances.
Cleaning anti-draft chamber panes:
Select dissolvent depending on a dirt. Never soak the glass panes in alkaline solutions since
they interact with glass and may cause damage. Do not use cleansers containing abrasive
substances.
For organic dirt use acetone first, next use water or detergent. For other than organic dirt use
diluted acid solutions (soluble salts of hydrochloric or nitric acid) or base solutions
(ammonium or sodium base).
To remove ACIDS use protophilic solvent (sodium carbonate), to remove BASE use
protogenic solvent (mineral acid of various concentration).
In case of heavy contamination use brush and detergent, nevertheless avoid detergents
containing large and hard molecules which could potentially scratch glass panes.
At the end of the cleaning process rinse the pane using distilled water.
Use soft brush with wooden or plastic handle exclusively in order to avoid risk of scratches.
Do not use wire brush.
Rinsing is a necessary cleaning process stage allowing to remove remaining soap,
detergents and other cleansers from the panes prior their reinstallation.
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