Hoefer CF1000 - Manual (Page 12)

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Operation
Before operating the centrifuge, be sure that the
power switch is in the “ON” position. To begin a
run, simply close the lid of the centrifuge. No other
controls are required. To stop rotation, press down on
the lid release tab on the front of the unit. This will
release the lid lock and the rotor will slow gradually to
a complete stop. After the rotor has stopped, the lid
may be opened by grabbing it with the thumb on the
front and fingers on the back then lifting the lid back
on the hinge. Safe operation of the centrifuge requires
that the rotor be loaded in a balanced fashion.
Failure to load the rotor properly presents a hazardous
condition and may damage the centrifuge. Individual
tubes, strip tubes and/or adapters must always be
loaded symmetrically to ensure proper balance. Never
run the centrifuge with only one strip tube in place.
Caution: Do not attempt
to open the lid or remove
samples until the unit has
come to a complete stop.