FRITSCH PULVERISETTE 7 premium line - Manual (Page 58)

3. If the device is put out of service for a lengthy period, close the
grinding chamber cover and turn the device off at the main switch.
5.12.10 Cooling the grinding bowl
The grinding bowls can be cooled
1.
with the grinding chamber cover open and the fan running (the
fan continues to run for 1 minute);
2. or by the programmed pause times with closed (locked) grinding
chamber cover and the fan running.
Using the device
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