Dynamica Velocity 15HR, Инструкция по эксплуатации

Страница: 17 / 60

3-3
3. Preparation
3.3 Preparing samples
(1)
Prepare the sample to be centrifuged.
(2)
Inject the sample into the tubes.
 Balance the tubes which are loaded into the rotor symmetrically with respect to the
center of rotation of the rotor.
WARNING ：
●
This centrifuge and the rotor are not explosion-proof. Never use explosive or
flammable samples.
● There are restrictions on the usage of biological samples and radioactive substances
that require biological isolation such as pathogens and recombinant DNA for safety
purposes. User must prepare necessary safety measures at user’s responsibility
before treating samples containing such substances.
！
CAUTION ：
・ Be careful that imbalance operation may occur in the following cases. Fill the
same sample in the tubes/bottles and load them in the buckets that are placed
symmetrically with respect to the drive shaft in the rotor.
● If samples that are equal in volume but different in composition are used, the
precipitation levels may be different by centrifugation and such operation may
increase the level of imbalance.
● If samples that are equal in weight but different in volume (density) are used or if
the tubes/bottles are different in inside diameter or shape, there may be variations
in position of center of gravity and such operation may cause imbalance.
！
CAUTION
：
● Use the rotor tubes within their actual capacities. Depending on the kind of tubes
used, a sample might leak from the gap between a tube and its cap if the tube is
full.
● Do not exceed the allowable imbalance. For the details, refer to section 3.1 or the
rotor instruction manual.
●
Never wittingly run under unbalanced condition even though the allowable
imbalance is not exceeded.
！