Centrifuge motor speed can not reach the set speed what is the reason?

Placed on a solid ground, the body can not shake, to ensure that the power supply and other peripheral facilities are not faulty after access to the centrifuge. Sample loading must be balanced, because the on-board operation will produce a large centrifugal force, especially in high-speed operation, unbalanced samples will produce a large torque, the lesser caused by the machine jitter or shaking, the heavier will distort the rotor shaft to cause greater jitter or even fracture. After turning on the power switch, set the speed, preferably from low to high speed gradually accelerate, it is strictly prohibited to open the cover. Abnormalities found in use should immediately turn off the power, do not wait for the occurrence of more serious consequences before shutting down the machine, you should contact the medical equipment maintenance engineer in a timely manner. After the completion of the experiment, to gradually decelerate until the self-stopping, turn off the power.