VWR MEGA STAR 3.0 Instruction Manual page 18

Acceleration curve
1. Press the key
menu.
The display shows the message "Set acceleration".
2. Select the profile by pressing the key
Braking curve
1. Press the key
The display shows the message "Set deceleration".
2. Select the profile by pressing the key
Preselecting Speed / RCF
1. Press the key below the "SPEED" display in order to open the speed / RCF value menu.
The display shows the "RPM" or the "RCF"-value depending on the display setting. Press the
CHANGE key to toggle between the two modes.
2. Enter the desired value by pressing the key
Note: If an extremely low RCF value has been selected, it will be corrected automatically if the resulting
speed is less than 300 rpm.
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
centrifuges, since it is independent of the type of device. Only the centrifuging radius and the speed
RCF = 11.18 x (
come into play in it:
1000
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.
18
below the ACC display in order to open the acceleration profile selection
below the DEC display in order to open the braking profile selection menu.
Explanation of RCF value
)
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x r
2
, until the desired acceleration curve shows.
, until the desired braking curve shows.
repeatedly, until the desired value shows.
VWR MEGA STAR 3.0 / 3.0R ver b, rel 25.06.2020