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7
Software operation
7.1
Centrifugation parameters
7.1.1
Set the brake level
7.1.2
Relative centrifugal force, RCF
7.1.3
Centrifugation of substances or mixtures of substances with a density higher than
1.2 kg/dm
AB2300en
1.
Switch off the mains switch.
2.
Press and hold down the ▲
button simultaneously.
3.
Switch on the mains switch and release the buttons.
�� Press the ▲
cator shows the machine version (and/or
cator shows the brake level set (and/or
The machine version is set ex works and cannot be changed.
4.
Use the
�� Level 1 = short ramp-down time.
Level 0 = long ramp-down time.
5.
Press the
The relative centrifugal force RCF is dependent on the speed and the centri-
fuging radius.
The relative centrifugal force RCF is stated as a multiple of the acceleration
due to gravity (g).
The relative centrifugal force RCF is a dimensionless numerical value and is
used to compare the separation and sedimentation performance.
RCF = Relative Centrifugal Force
RPM = speed
r = centrifuging radius in mm = distance from the centre of the axis of
rotation to the bottom of the centrifuge tube.
3
The density of the substances or mixtures of substances must not exceed
1.2 kg/dm³ during centrifugation at maximum speed. The speed must be
reduced for substances or substance mixtures with a higher density. The
permissible speed can be calculated using the following formula:
For example: Maximum speed 4000 RPM, density 1.6 kg/dm³
Rev.: 12 / 10.2023
[RPM x 100] button and the [PULSE]
[RPM x 100] button repeatedly until the speed indi-
[t] buttons to set the desired brake level.
[STOP] button to save the settings.
Software operation
'C' ) and the time indi-
'0' or '1' ).
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