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2. 10. Aerosol-Tight Applications
2. 10. 1. Basic Principles
Make sure that the sample containers are well suited for the desired centrifugation process.
CAUTI ON
Aerosol-tight rotors and tubes may only be opened in an approved safety
work-bench when centrifuging dangerous samples. Mind the maximum
permissible load.
CAUTI ON
Be sure to check all sealings before starting any aerosol-tight applications.
2. 10. 2. Fill Level
Do not fill the tubes beyond a safe level to prevent the sample from reaching the top of the tube during
centrifugation. To be on the safe side, fill the tubes only to 2/3 of the rated level.
2. 10. 3. Aerosol-Tight Rotor Lids
Figure 2–19: Lid of an aerosol-tight rotor with mandrel
Placing O-ring
The O-ring fulfills its purpose best, when it is neither excessively stretched nor bulged. The O-ring shall be equally
placed in the groove of the lid.
Place the O-ring as follows:
1.
Place the O-ring above the groove.
2.
Push the O-ring on two opposite places into the groove. Make sure the rest of the O-ring is equally distributed.
3.
Push the centers of the loose parts into the groove.
4.
Push the remaining O-ring into place.
NOTICE If the O-ring seems to be too long or too short, take it off the lid and repeat the process.
CAUTI ON
When using an aerosol-tight rotor lid, verify that the sample tubes do not
interfere with the rotor lid and compromise its sealing efficiency.
CAUTI ON
Rotors supplied with a lid for aerosol-tight applications come with a
mandrel as an accessory to the Auto-Lock device. Be sure not to place the
lid on this mandrel. The lid may be damaged.
2. 10. 4. Aerosol-Tight Rotor Buckets
Aerosol-tight Closure with ClickSeal
1.
If necessary, grease the lid joint before closing the lid. Use grease (76003500) for this.
2.
Raise the latch.
The cap can now be easily placed on the bucket.
3.
Lower the latch to close the bucket aerosol-tight; be sure the latch clicks into place.
Make sure that both sides of the latch are closing the bucket cap.
2-13
Operation
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