Thermo Scientific Sorvall ST40, Instruction Manual

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Operation
Entering parameters
4-8 Sorvall ST 40 Thermo Fisher Scientific
Running time preselection 1. Press the TIME key in order to open the runtime selection menu.
The display shows the message "Set Time“.
Enter the desired runtime in hh:mm
2. Press the TIME key repeatedly to switch over to mm:ss or Hold
mode respectively.
3. Enter the desired value by pressing the key repeatedly, until
the desired value shows.
Continuous operation
During continuous operation, the centrifuge will continue running
until you stop it manually.
Explanation of RCF value
The relative centrifugal force is given as a multiple of the force of
gravity g. It is a unitless numerical value which is used to compare
the separation or sedimentation capacity of various devices, since it is
independent of the type of device. It simply involves the rotational
radius and the rotating speed:
r = Rotational radius in cm
n = Speed in rpm
The maximum RCF value is related to the maximum radius of the
tube.
Remember that this value is reduced depending on the tubes and
adapters used.
This can be accounted for in the calculation above if required.
RZB 11 18 ,
n
1000
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〈 〉
2
r
× ×
=