FRITSCH PULVERISETTE 4 classic line - Manual (Page 36)

To reduce the grinding time, you can use a grinding bowl and grinding
balls with a higher density, and thus a higher impact energy.
The mill can also run for several hours during low-speed operations for
mixing and homogenisation.
Operation with an external time switch is not possible.
6.8 Settings on the control panel
n Switch on the main switch (8) on the right-hand side of the machine.
n The LED display lights up.
6.8.1 Select program
By pressing the "program" key, program storage locations 1 - 9 are
selected. The rotational speeds of the main disc and of the planet gears,
the milling duration, the pause times, the number of repeats of milling
and pause times and reverse mode can be stored in these storage loca-
tions.
6.8.2 Start the mill
After the conditions specified in Ä Chapter 6 ‘Using the device’
on page 24 have all been observed, close the hood. After pressing the
START key, the mill starts. The machine runs at the rotational speed, etc.
as stored in the displayed program storage location.
6.8.3 Switching off
On pressing the STOP key, the mill brakes the main disk and the planet
gears to a complete standstill. This procedure can take several seconds.
See Ä Chapter 6.9 ‘Conducting a grinding operation’ on page 37.
6.8.4 Meaning of the LED display
Display: 0
After a loss of electrical power during milling, the residual running time is
stored in location 0 (maximum inaccuracy is 1 hour). After switching on
again, the remaining time is displayed in storage location "0".
Display: 1-9
These are the program storage locations 1 - 9
Flashing display 5-9
Using the device
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