Thermo Scientific Sorvall X Pro Series Instructions For Use Manual page 26

Before loading a Rotor
1. Inspect the rotor and all accessory parts for damage, such as cracks, scratches, or traces of corrosion.
2. Inspect the centrifugation chamber, drive shaft and Auto-Lock device for damage, such as cracks, scratches,
or traces of corrosion.
3. Check the suitability of the rotor and other used accessories against the Chemical Compatibility Chart. Refer
to "Chemical Compatibility" on page
4. Make sure that:
» tubes or bottles fit in the rotor.
» the tubes or bottles do not touch the rotor lid or bucket caps.
» buckets or microplate carrier can swing freely by moving them carefully with your hand.
CAUT I ON Incorrect loading can lead to damage. Always load the rotor symmetrically
to avoid imbalance, noisy spinning and possible damage. A full
complement of buckets needs to be installed before operating a swing out
rotor.
CAUT I ON When using an aerosol-tight rotor lid or bucket caps, verify that the samlple
tubes don't interfere with the rotor lid or bucket cap and don't compromise
its sealing efficiency.
CAUT I ON Always use 2 identical bucket types in opposite positions. Make sure that
opposite buckets are of the same weight class, if a weight class is labeled
on the buckets.
2. 5. 2. Maximum Loading
Each rotor is designed to run with its maximum load at maximum speed. The safety system of the centrifuge
requires that the rotor is not overloaded.
The rotors are designed to work with substance mixtures with a density of up to 1.2 g/ml. If the admissible
maximum load is exceeded, the following steps need to be taken:
Reduce the fill level.
ƒ
Reduce the speed.
ƒ
Use the following formula or the table given for each rotor in the chapter
calculate the maximum admissible speed for a given load:
n = admissible maximum application speed
adm
n = maximum rated speed
max
w = maximum rated load
max
w = applied load
app
C-1.
2-7
"Rotor Specifications" on page B-1
Operation
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