Refrigerated Centrifuge with Heating System Sigma 3-30KHS
6 Using the centrifuge
Version 09/2014, Rev. 1.15 of 08/05/2020
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Translation of the original operating manual, part no. 0701402
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6.3.2.7
Parameters menu
The "Parameters" menu is symbolised by the "
" symbol on the menu
bar. It 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. 18: Menu "Parameters"
Process
Standstill cooling
NOTE
In the case of refrigerated centrifuges with a heater, the "Standstill
cooling" function corresponds to a heating process while the centrifuge is
at a standstill.
Depending on the substances that are to be centrifuged, it may make
sense to bring the centrifuge to a certain temperature prior to starting a
centrifugation. The temperature adaptation prevents the samples with a
specific temperature in the uncooled centrifuge from heating or cooling
down to an inadmissible temperature level.
If the standstill heating/cooling function is activated, the heating/cooling
process of the centrifuge will be started 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 leads to an incorrect measuring and
control behaviour and causes the compressor to freeze over. At
temperatures below 0°C, aqueous liquids will freeze, thereby preventing
sedimentation.
Do not cool the rotor below 0°C at a standstill.
NOTE
The centrifuge is equipped with the "RAPID_TEMP" program. This
program is used to bring the rotor chamber quickly to a predefined
temperature under the defined conditions (see chapter 6.3.2.5 - "Standard
menu", Program list).
