FRITSCH PULVERISETTE 7 premium line - Manual (Page 27)

5 Using the device
5.1 Safety information
DANGER!
The PULVERISETTE 7 premium line planetary mill from
Fritsch enables speeds of up to 1100 rpm. The application
of high energy may result in very high temperatures and
high pressures in the grinding bowl.
Failure to observe the following safety instructions could
result in the explosion of grinding bowls and parts flying
around, causing injuries and damage to the building or
device.
We cannot accept any liability for the occurrence and con-
sequences of injuries or damage to the building or device
resulting from a reaction of the sample material in the
grinding bowl that cannot be anticipated or controlled.
Bear in mind that it is essential that test grinding operations
with unknown parameters are always carried out in a safe
room that reliably prevents damage by exploding grinding
elements.
WARNING!
Make sure before starting the machine that the grinding
bowls have been tensioned correctly and that there are no
loose parts inside the device. There is a risk of loose
grinding bowls or parts being flung out. Failure to observe
this will void the guarantee and release us from liability for
any resulting damage to the device or personal injury.
NOTICE!
During grinding, the temperatures in the grinding bowl may
get very high.
In encased grinding bowls, the inserts are glued into the
casing with a two-component construction adhesive.
The adhesive is resistant to temperatures up to approx. 140
°C. Above 140 °C, the adhesive will liquefy and accumulate
below the insert in the casing. When the adhesive cools
down, it solidifies and pushes the casing up. That can cause
irreparable damage to the insert. The grinding bowl will
definitely be rendered unusable.
Above temperatures of 200 °C, the adhesive will be
destroyed. The same applies for encased grinding bowl lids.
Using the device
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