Hoefer CF1000 - Manual (Page 9)

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Safety Precautions
NEVER use the centrifuge in any manner not specified
in these instructions.
NEVER operate the centrifuge without a rotor properly
attached to the shaft.
NEVER fill tubes while they are in the rotor. Spilled
liquid may harm the unit.
NEVER put hands in the rotor area unless the rotor is
completely stopped.
NEVER move the centrifuge while the rotor is spinning.
NEVER use solvents or flammables near this or other
electrical equipment.
NEVER centrifuge flammable, explosive or corrosive
materials.
NEVER centrifuge hazardous materials outside of a
hood or proper containment facility.
ALWAYS load the rotor symmetrically. Each tube
should be counterbalanced by another tube. Weight of
individual tubes may not exceed of 3.0 g.
ALWAYS locate the centrifuge within easy access to an
electrical outlet.
ALWAYS use only centrifuge tubes made from plastic
and designed to withstand centrifugal forces of at
least 2000 g.