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16 Maintenance and Servicing
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16.6 Cleaning
The moisture analyser 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 moisture analyser 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 re-installing them on the moisture analyser.
The regular maintenance of the moisture analyser by your Service Representative will guarantee unlimited
function and reliability over many years and will extend the lifespan of the moisture analyser.
16.7 Replacing the mains fuse
If the display remains dark after you switch on the instrument, this generally means that the instrument's
fuse is faulty and has to be changed.
DANGER
For maintenance work, the moisture analyser must be separated from the power supply (remove power
adaptor plug from socket). Also ensure that the moisture analyser 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 moisture
analyser, the latter must immediately be disconnected from the electricity supply. The moisture analyser
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 instrument housing and can
cause damage.
DANGER
Unplug the instrument from the mains before replacing the fuses.
• Screw open the fuse holder on the back of the instrument using a
screwdriver, screwing anticlockwise.
• Replace the faulty fuse:
– 230 volt variant:
T 3.15 A, 230 V, 5x20 mm
– 115 volt variant:
T 6.3 A, 115 V, 5x20 mm
• If the instrument still does not work after replacing the fuse, contact
the Precisa Service Center.
DANGER
Under no circumstances should you use other fuses or attempt to bridge the fuse.
