Product Features of the High-speed Freezing Centrifuge: ① It is microcomputer-controlled with a touch panel, a brushless variable-frequency motor, and digital display, making it convenient to operate. ② It has automatic RCF calculation and is equipped with multiple protections such as imbalance, over-speed, over-temperature, and door cover protection. The electronic safety door lock ensures the safety of both personnel and the instrument. ③ The lifting rate can be arbitrarily selected from 1 to 10 gears. ④ There are multiple specifications and capacities of aluminum alloy rotors for users to choose from. ⑤ The whole machine has a steel frame structure, which is sturdy and durable. Precautions for Using the High-speed Freezing Centrifuge: 1. Before use, it must be placed on a stable and firm tabletop or ground, and the casing should be grounded. 2. If centrifugation is required at a temperature lower than room temperature, the rotor should be placed in the rotor chamber of the centrifuge before use, set the temperature for pre-cooling, and the centrifuge cover must be closed during pre-cooling. 3. Inferior centrifuge tubes should not be used, nor should aged, deformed, or cracked centrifuge tubes. 4. When in use, the load must be balanced, and the centrifuge tubes must be placed symmetrically. If there is only one sample tube, the other one should be replaced with water of equal mass. This can ensure smooth rotation and prevent eccentric vibration. 5. When starting the centrifuge, make sure to close the centrifuge cover first before slowly starting it. 6. When starting and stopping the centrifuge, the speed must be increased or decreased slowly, and the speed should not be changed rapidly. 7. After use, turn the speed control knob back to "0" gear by gear, and then let it stop rotating on its own. It is strictly prohibited to open the machine cover when it has not stopped rotating or when the machine is running. 8. If an abnormal sound is found during use, turn off the machine immediately and carry out inspection and maintenance. 9. During centrifugation, the experimenter should not leave. 10. Regularly (about half a year) check the wear of the commutator and brushes, and replace them immediately if they are excessively worn. 11. The bearings of the motor should be regularly filled with lubricating grease.