8
Cleaning
DANGER!
Mains voltage!
– Before beginning with cleaning work, disconnect
the mains plug and protect the device against being
unintentionally 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.
When cleaning the entire device, adhere to the guide‐
lines of the Accident Prevention Regulation (BGV A3) ‐
especially when the device has been set up in a dusty
environment or when the grinding stock processed pro‐
duces dust.
8.1 Grinding elements
NOTICE!
Cool grinding elements made of agate, sintered
corundum, zirconium oxide and silicon nitride slowly
and carefully.
Do not heat agate 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 burst apart like in an explosion.
n
Clean the grinding bowl and grinding balls each time after using
them: Clean them, e.g., under running water using a brush and a
commercially available cleaning agent.
n
Half fill the grinding bowl with grinding balls, sand and water, and
run for 2 to 3 minutes (correctly tensioned) in the Laboratory plane-
tary mill.
n
Cleaning with an ultrasonic cleaner is permitted.
n
For sterilisation in the heat cabinet, only heat the grinding elements
up to 100 °C.
Cleaning
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