Temperature (For Centrifuges With Cooling); Relative Centrifugal Force, Rcf; Relative Centrifugal Force Rcf And Centrifuging Radius Rad - Hettich Rotina 420 R Mode D'emploi

7.1.5

Temperature (for centrifuges with cooling)

7.1.6

Relative centrifugal force, RCF

7.1.7

Relative centrifugal force RCF and centrifuging radius RAD

AB4701en
[START] button.
6. Press the
�� The setting is stored.
'Store Settings ...' is displayed briefly
'-> Settings' is then displayed.
[OPEN/STOP] button once to exit the ' Settings' menu
7. Press the
or
[OPEN/STOP] button twice to exit the 'Machine Menu' .
Press the
[T/°C] button.
1. Press the
�� The T/°C or T/°F parameter is displayed.
2. Use the rotary knob to set the desired value.
[T/°C] button or the [START] button.
3. Press the
�� The setting is transferred to the indicator.
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.
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.
The centrifuging radius of the accessories used is listed in the accessories
overview at the end of the instructions for use.
1. Press the [RCF] button repeatedly until the 'RAD' , 'RCF' parameters
are displayed and the value of the
brackets á ñ .
[RCF] button lights up.
�� The
[Rotary knob] to set the desired centrifuging radius.
2. Use the
The value of the RCF adjusts automatically when the centrifuging
radius is changed.
[RCF] button.
3. Press the
�� The value of the
Rev.: 19 / 02.2025
'RAD' parameter is displayed in
'RCF' parameter is displayed in brackets á ñ
Software operation
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