Precisa 490 IB Series, Руководство по эксплуатации, Страница: 39 / 46

14 Service ■
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14 Service
14.1 Maintenance and servicing
The balance must be treated carefully and cleaned regularly. It is a precision instrument.
Regularly dismantle the weighing pan and the weighing pan holder and remove any dirt or dust from under
the weighing pan and on the balance housing with a soft brush or a soft, lint-free cloth, moistened with a
mild soap solution.
The weighing pan and the holder can be cleaned under running water. Take care that both parts are com-
pletely dry before they are re-installed on the balance.
The regular maintenance of the balance by your Service Representative will guarantee unlimited function and
reliability over many years and will extend the lifespan of the balance.
14.2 Error messages
The balance shows a description of the fault in the info-line.
14.2.1 Notes on correcting faults
The following table shows faults and their possible causes. If you cannot clear the fault using the table,
please contact the Customer Service..
DANGER
For maintenance work, the balance must be separated from the power supply (remove power adaptor
plug from socket). Also ensure that the balance cannot be reconnected to the power supply during the
work by a third party.
Take care during cleaning that no liquid penetrates into the appliance. If liquid is spilt on the balance, the
latter must immediately be disconnected from the electricity supply. The balance must only be used
again after it has first been checked by a Service Engineer.
The connections on the rear of the appliance and the power adaptor must not come into contact with liq-
uids.
CAUTION
Never use solvents, acids, alkalis, paint thinners, scouring powders or other aggressive or corrosive
chemicals for cleaning, since these substances attack the surfaces of the balance housing and can cause
damage.
NOTE
If an error occurs without a description of the error in the info-line, the Customer Service must be called.
Fault
Possible cause
Weight dis-
play does not
light
• Balance not switched on
• Connection to power adaptor is interrupted
• Power supply has failed (interruption to current)
• The power adaptor is defective
“OL” is shown
in display
• The weight range has been exceeded (Observe information on the maximum weight
range)
“UL” is shown
in display
• The weight range is below the range of the balance (Scale pan or scale pan holder
missing)