Thermo Scientific Sorvall LYNX 4000 Instruction Manual page 40

4
Operation
Entering Parameters
The relative centrifugal force (RCF) 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. Only the centrifuging radius and the speed
come into play in it:
RCF
r = centrifuging radius in cm
n = rotational speed in rpm
The maximum RCF value is related to the maximum radius of the tube opening.
Remember that this value is reduced depending on the tubes and adapters used.
This can be accounted for in the calculation above if required.
Run Time Preselection
1. Press the
Press Time,
Time
Duration of centrifugation; input
as hh:mm. The set time is
counted down when
centrifugation is in progress.
Initial value: Defined duration
hh:mm:00
Enter the desired value using the numeric pad.
The digits show in sequential order.
2. Confirm your entry by pressing Confirm.
30
Sorvall LYNX 4000 / 6000
2
n
 
×
------------ -
11 18 ,
=
1000
key in order to open the runtime selection menu.

2
Hold or , depending on the value you would like to change.
Explanation of RCF-Value
×
r
Hold
Unlimited duration of
centrifugation. The time elapsed
so far is displayed while
centrifugation is in progress. Initial
value: 00:00:00
ACE
Accumulated Centrifugal Effect
enter in x.y * 10z
st
X: Whole digits (1 input field)
nd
Y: Decimal numbers (2 input field)
rd
Z: Power (3 input field)
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