FRITSCH PULVERISETTE 7 premium line - Manual (Page 101)

8 Cleaning
8.1 Grinding elements
Clean the grinding bowl and grinding balls each time after using them:
e.g. clean them under running water using a brush and a commercially
available cleaning agent.
Add sand and water until the grinding bowl is about half full and "grind
to clean" for 2 to 3 minutes in the laboratory planetary mill.
Cleaning with an ultrasonic cleaner is permitted.
For sterilisation in the heat cabinet, only heat the grinding elements up
to 120°C.
Grinding elements made of agate may only be heated up to 100°C.
CAUTION!
Cool grinding elements made of agate, sintered corundum,
zirconium oxide and silicon nitride slowly and carefully.
Do not heat the grinding elements in a microwave under
any circumstances (heating is too fast).
They must never be exposed to thermal shocks as this
could cause irreparable damage to the parts ￫ They will fall
apart in an explosive manner.
8.2 Mill
DANGER!
Mains voltage!
– Before beginning with cleaning work, disconnect the
mains plug and protect the device against being unin-
tentionally switched back on!
– Do not allow any liquids to flow into the device.
– Indicate cleaning work with warning signs.
– Put safety equipment back into operation after
cleaning work.
The micro mill can be wiped down with a damp cloth when it is switched
off.
The grinding chamber can be cleaned thoroughly with a damp cloth by
removing the grinding chamber cover.
Cleaning
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