1. Symmetrical balance: When the centrifugal speed reaches 10,000 to 50,000 (revolutions/min), if the symmetrical tubes differ by 1 gram and the rotor radius is 5 cm, then the centrifugal force formula F=m×RCF

Look up the table: 10,000 (revolutions/min) RCF=6000 is substituted into the formula F=1×6000=6(Kg)

50,000 (revolutions/min) RCF=150000 into the formula F=1×150000=150(Kg)

At this time, the imbalance between the two sides can reach 6-150 (Kg), which will cause great damage to the blood collection tube and at least shorten the service life.

2. If the cap of the centrifuge tube is poorly sealed, the liquid cannot be filled (for high-speed centrifugation and use an angle head) to prevent spillage. The spillover will contaminate the rotor and centrifugal chamber and lose their balance, affecting the normal operation of the sensor

3. During ultracentrifugation, the liquid must be filled with the centrifuge tube, and the centrifuge tube should be evacuated when the ultracentrifugation is required. Only by filling it can the centrifuge tube be prevented from being deformed.

4. Don't forget to cover the rotating head cover when using the angle head. If it is not covered, great eddy resistance and frictional heating will be generated in the centrifugal chamber, which is equivalent to adding an extra burden to the motor and refrigerator of the blood collection tube and affecting the blood collection tube Service life.

Maintenance precautions

1. Clean the cavity and rotor, and wipe off the condensed water in the cavity.

2. Open the door after use until the cavity returns to normal temperature.