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Laboratory Centrifuge Sigma 2-6
6 Using the centrifuge
Version 04/2007, Rev. 2.10 of 06/11/2015 • sb
29
Translation of the original operating manual, part no. 07044
Centrifugation with low capacity
• Install the tubes axial symmetrically so that the buckets and their inserts
are loaded evenly.
• It is not permissible to load angle rotors on only one axis.
correct
incorrect
Fig. 7: Permissible and impermissible loading of an angle rotor and a swing-out rotor
(example illustrations)
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6.2.2.3 Adapters
In order to ensure easy handling, even if vessels of various sizes are used,
carrier systems were developed.
• Load the opposite adapters with the same number of vessels and with
the same weights in order to avoid imbalance.
• If all of the compartments of a carrier are not used, the buckets must be
loaded evenly. Loading the edges of a bucket only is not permissible.
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6.2.2.4 Tubes
• Load the tubes outside of the centrifuge. Liquids in the buckets or
multiple carriers cause corrosion .
• Fill the tubes carefully and arrange them according to their weight.
Imbalances result in the excessive wear of the bearings.
• In high-speed angle rotors, the vessels must be filled up to their useful
volume (= the volume stated for the vessel). If the vessels are only
partially filled, they will deform. This may result in leaks at the seals that
may become loose.
• When using glass tubes, the maximum value of 4,000 x g must not be
exceeded (except special high-strength glass tubes; please refer to the
information provided by the manufacturer).
• Follow the safety instructions and hazard warnings (see chapter 3 -
"Safety")!
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