FRITSCH PULVERISETTE 7 classic line - Manual (Page 37)

6.8 Setting the speed
n Switch on the main switch (8) on the back of the device (I).
n The green POWER SUPPLY ready status indicator lights up on the
control panel.
ROTATIONAL SPEED control panel area
Press and hold the + or - button.
The speed can be selected in steps of 10 between 100 and 800 1/min.
The actual speed is displayed during operation. The nominal speed is
briefly displayed when the + or - button is pressed.
6.9 Setting the running time
TIMER control panel area
n Press the MILLING button, it lights up; press the + or - button and
select the running time in minutes (0..99) and seconds (0..59).
n Set the pause time if cooling down is necessary. Press the "Pause"
button, it lights up; press the + or - button and select the pause time
in minutes (0...99) and seconds (0...59).
If no pause time is required, set the pause time to 0.
– If the combination minutes/seconds is set in setup
mode instead of hours/minutes (see Ä Chapter 6.9.1
‘Changing the time unit in setup mode’ on page 38), the
numbers at h indicate the minutes and at min the sec‐
onds!
The factory setting for the time unit is minutes and sec‐
onds. (Display: 1)
– The remaining running times and the pause times are
displayed during operation.
– Operation with an external time switch is not possible.
– Running times Ä Chapter 6.4.1 ‘Running time (grinding
duration)’ on page 32.
– Interrupt grinding by pressing the STOP button. Con‐
tinue grinding by pressing the START button. This takes
into account the previous grinding duration and the
number of repetitions.
Using the device
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