4
APPLICATIONS
Misapplication of any tube can cause tube rupture. To
avoid this, never spin tubes faster than their recommended
G-force, and never centrifuge disposable tubes more than
once. If the tubes are not rated for the needed force, use
more suitable tubes. If breakage does occur, residue will
be captive in the tube cavity in the rotor. You may be able
to recover it by pipetting.
Corrosive solvents Your IEC centrifuge is made of materials designed to resist
attack from common laboratory chemicals. The rotor and
lid are made of polypropylene and the interior of the rotor
chamber is stainless steel. Use covered sample tubes if
the samples contain acids or solvents known to attack
these materials. Promptly cleaning spills from the rotor
and from the sample chamber minimizes the effects of
corrosive chemicals. Replace any component that exhibits
crazing, frosting, peeling, or similar faults. Do so before
any resulting vibration requires more expensive repair.
Replace the shaft adapter, rotor, lid, or metal locking nut if
they become cracked, scratched, or gouged.
Sample Heating The rotor chambers of Models 3590 and 3591 centrifuges
are ventilated during operation. However, during very long
runs, some heat inevitably travels to the samples. You can
minimize sample heating by placing the unit in a refrigerator
or cold room.
Micromax Series
15
Service Manual
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