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Chapter 1
Use and Function
Relative Centrifugal
1-4
T3/G3
Note Imbalance tolerance depends upon the rotor in use. The
centrifuge will tolerate 15 gr. of imbalance with the TTH751 rotor
equipped with standard buckets. Carefully balance the sample load to
avoid actuating the imbalance detection system. If the protection has
not been removed from the imbalance detection device during
installation, the centrifuge will consider this as an imbalance situation
and will not operate.
Relative Centrifugal Force (RCF), at the circumference of a rotor and
bucket combination, is directly proportional to the speed (r.p.m.) and
Force
radius of the rotor. Therefore, a greater r.p.m. and/or a larger radius
produces a greater RCF and improved faster separation of substances.
The centrifuge control system carries out and displays the results of all
calculations related to speed, radius and RCF.
Note : The value introduced for the radius can be adjusted to allow for
position within the tube such as at a boundary. Maximum radii are
quoted in the specifications tables. Use of improper radius will adjust
the speed setting, automatically applying the wrong RCF.
Thermo Fisher Scientific
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