Refrigerated Centrifuge with Heating System Sigma 2-16KHL
6 Using the centrifuge
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Version 02/2013, Rev. 1.19 of 25/04/2019
• sb
Translation of the original operating manual, part no. 0700802
Short run
A short run can be started if no run is active.
• Keep the start key pressed during the short run.
During the short run, the centrifuge accelerates with the acceleration curve
9 (maximum) until the maximum permissible speed of the rotor is reached.
The runtime is counted and in the "Time" field the indication "Short" is
displayed.
When the start key is released, the centrifuge decelerates to a standstill
based on the maximum deceleration curve.
When the short run is completed, the original parameters (curves, runtime,
and final speed) are restored and displayed.
Fig. 15:
Indication “Short” during a short run
6.3.2.3
Temperature ("Temp")
The set value is displayed in the upper area of the field and the actual
sample temperature is displayed in the lower area. Temperatures between
-10 °C and +60 °C can be preselected.
Fig. 16: Setting the temperature
Temperature control
Depending on the substances to be centrifuged, it may make sense to
perform a temperature control of the centrifuge. The temperature control
prevents the temperature-controlled samples in the non-temperature-
controlled centrifuge from heating or cooling to an inadmissible
temperature.
CAUTION
Unmoved air in the rotor chamber distorts the measuring and control
behavior and causes the compressor to freeze over. At temperatures
below 0°C, aqueous liquids will freeze, making sedimentation impossible.
• Ensure that the rotor temperature will not fall below 0 °C when the rotor
is at a standstill!
