Figure 3. Loading the rotor
Figure 2. Bottom of angle rotor
5
3.5 Overloading the rotor
The maximum load of the rotor and the maximum speed have
been established by the manufacturer. Do not attempt to
exceed these values.
The maximum speed of the rotor has been measured for liquids
having a homogeneous density of 1.2g/ml or less. In order to
centrifuge liquids with a higher density it is necessary to reduce
the speed.
Failure to reduce the speed may result in damage to the
rotor and centrifuge.
The revised maximum speed can be calculated with the following
formula:
Reduced speed (n
red
) =
x max speed (n
max
)
Example:
Where the density of the liquid is 1.7, the new maximum speed
would be calculated as follows:
n
red
=
x 6,500 = 5,461 rpm
If in doubt concerning maximum speeds, please contact the
manufacturer for assistance.
4. Operation
ATTENTION: Never attempt to operate the centrifuge with
rotors or adapters that show signs of corrosion or mechanical
damage. Never centrifuge strongly corrosive materials that
may damage the rotors or accessories.
1.2
higher density value
1.2
1.7
6
Figure 1. Chamber and motor shaft
