Relative Centrifugal Force Rcf And Centrifuging Radius Rad - Hettich Rotanta 460 R Mode D'emploi

Software operation
7.1.7

Relative centrifugal force RCF and centrifuging radius RAD

7.1.8 Centrifugation of substances or mixtures of substances with a density higher than
1.2 kg/dm
46 / 73
r = centrifuging radius in mm = distance from the centre of the axis of
rotation to the bottom of the centrifuge tube.
The relative centrifugal force RCF is dependent on the centrifuging radius
RAD. The centrifuging radius must be set before setting the relative centri-
fugal force.
1. Press the
are displayed and the value of the
brackets á ñ.
�� The
2. Use the
The value of the RCF adjusts automatically when the centrifuging
radius is changed.
3. Press the
�� The value of the
4. Use the
5. Press the
�� The set RCF value is saved.
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
If, in exceptional cases, the maximum load indicated on the bucket is
exceeded, the speed must also be reduced. The permissible speed can
be calculated using the following formula:
For example: Maximum speed 4000 RPM, maximum load 300 g, actual
load 350 g
Please contact the manufacturer if you are not sure.
Rev.: 24 / 01.2024
[RCF] button repeatedly until the 'RAD' , 'RCF' parameters
[RCF] button lights up.
[Rotary knob] to set the desired centrifuging radius.
[RCF] button.
'RCF' parameter is displayed in brackets á ñ
[Rotary knob] to set the desired 'RCF' .
[PROG] button.
'RAD' parameter is displayed in
AB5650en