Hoefer PR250 - Manual (Page 14)

Starting and stopping
To start the PR250 press the knob for approximately
1 second, the unit will run at the set speed and for
the time programmed or continuous (value will be
displayed in time window).
To stop the unit press the knob for approximately
1 second and the unit will stop; the display will show
the values previously set.
Changing the speed and timing
during operation
a) While the unit is running, press the knob, the
tens digit of speed will blink, rotate the knob to
change speed.
b) Press the knob a second time, the time digits
will blink. The time can now be adjusted by
turning the knob.
c) Once the time has been selected there will be
a 4 second delay until the blinking stops, at
which time the display will show the new set
time. The instrument will now function at the
new set speed and time.
9. PR250 Cleaning
• The PR250 should never be immersed in water.
• The platforms and clamps should be cleaned with
diluted liquid soap.
•
p8
Press the knob
Press and release
Press the knob
Press and release
Caution! Always unplug unit from
electrical supply before cleaning
or drying the unit.
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