8KS
8KBS
6 Using the centrifuge
Version 08/2012, Rev. 1.6 of 04/02/2014 • sb
45
Translation of the original operating manual
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6.3.2.6 Parameters menu
The "Parameters" menu is used to specify various conditions for the
centrifugation. These conditions are used to monitor the process and to
control access to the centrifuge.
Fig. 21: Parameter menu
Process
Standstill cooling
Depending on the substances to be centrifuged, it may make sense to
precool the centrifuge. The precooling prevents the cooled samples in the
uncooled centrifuge from heating up to an inadmissible temperature.
If the standstill cooling is activated, the centrifuge starts to precool after it is
switched on. In the runtime field, the symbol " " is displayed. The lid must
be closed.
CAUTION
Unmoved air in the rotor chamber distorts the measuring and control
behaviour and causes the compressor to freeze over. At temperatures
below 0°C, aqueous liquids will freeze, making sedimentation impossible.
• Ensure that the rotor temperatured does not fall below 0 °C if it is at a
standstill!
NOTE
The centrifuge is equipped with the "RAPID_TEMP" program. This
program is used to precool the rotor chamber quickly under defined
conditions (see chapter 6.3.2.5 - "
Standard menu
", Program list).
Radius
The radius determines the value of the relative centrifugal force (RCF) that
the sample is subjected to. Normally, the maximum RCF value is displayed.
If the value is reduced manually, a downward facing arrow ( ) will be
displayed in the RCF field.
