Dynamica Velocity 15HR, Instruction Manual

Page: 53 / 60

Operating Procedure
1. Install the rotor according to the procedures specified in the centrifuge instruction manual.
！
CAUTION
：
Be sure to tighten the nut with the attached tool for setting the rotor. Be sure to use the
attached tool to tighten the nut. Otherwise it might be difficult to remove the tool from the nut.
If you tighten the nut insufficiently, the rotor might abnormally vibrate or come off. There is the
mark in the side of the nut. If you can see the mark after you finish tightening the nut, the nut
has not been tightened sufficiently.
Tighten the nut sufficiently until you can not see the mark on the side of the nut.
2. Inject the sample into the tubes.
！ CAUTION ： Check the attached chemical resistance chart, and do not use any sample inapplicable to
the rotor, adapters, or tubes. Using such a sample could corrode or deteriorate them.
！
CAUTION
：
Do not exceed the actual capacity specified in “Applicable Tubes and Adapters”.
Otherwise the sample leakage may occur during operation.
！
CAUTION
：
Use of tubes with caps is recommended to prevent contamination of the sample with dust or water.
3. Balance the tubes that are symmetrically arranged.
！
CAUTION
：
Balance between symmetrically arranged tubes filled with the same-density sample.
Variations in sample density cause imbalance operation.
The allowable imbalance of this rotor is specified in the following list.
Allowable imbalance
：
Difference in weight of contents( the tube and the sample)
in the tube cavities that are arranged symmetrically.
［Ａ
:Level difference of sample
］
＊
Level difference is a guide for balancing samples. Note that the
weight difference does not necessarily agree with the level difference.
4. Check that there is no crack or deterioration on the rotor. If the tube cavities are deteriorated, the strength of
the rotor may be significantly decreased. Pay special attention when checking the tube cavities. The rotor is
deteriorated if the surface is discolored, dented or cracked.
！
CAUTION
：
If there is any abnormality such as deterioration or crack, stop use of the rotor and
contact an authorized sales/service representative.
Check that there is no foreign matter in tube cavities.
Nut
Mark
Improper setting:
If you can see the mark after you
finish tightening the nut, the nut has
not been tightened sufficiently.
Proper setting:
If you can not see the mark after you
finish tightening the nut, the nut has
been tightened sufficiently.
Ａ
For 0.5 mL micro tube
！
CAUTION
：
The FAS15F rotor has two kinds of tube cavities(for
1.5mL/2.0mL micro tube and for 0.5mL micro tube).
Check the tube size before operation and load
the tubes into the tube cavities corresponding
to the tube.
！ CAUTION ： The caps of the 0.5mL micro tube and 1.5mL/2.0mL micro
tube may overlap depending on the kinds of tubes.
Do not load 1.5mL/2.0mL micro tube and 0.5mL micro
tube together in this rotor when the caps of them overlap.
Otherwise the tubes may be damaged during the
operation.
For 1.5mL/2.0 mL micro tube
Mark
FAS15E/15F FAS15G
Weight of difference Within 0.2 g Within 0.1 g
Level difference Within 5 mm