Usually the producer uses the air windage which is caused by the rotor rotating to protect the centrifuge low speed rotor when it runs over speed. But for a centrifuge high speed rotor, there is a special protection circuit. When the running speed is adding up abnormally, the circuit will work and will cut off the power supply automatically. So, if the user adjusts the centrifuge speed when it is running, the speed should be added normally and step by step, rallentando. If the user adds the speed to a very high level suddenly, the abnormal over speed protection function of the centrifuge will work.

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    Biolekon Scientific Instruments co., Limited

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    https://www.china-centrifuges.com

    Professional laboratory centrifuges manufacturer