Balancing the centrifuge

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The page below is a sample from the LabCE course Proper Use and Care of the Medical Laboratory Centrifuge. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

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Balancing the centrifuge

  • As noted previously, for each tube placed into the rotor, a tube of equal weight must be placed into the rotor directly opposite it. (See Figure 1) By doing so, the operator is ensuring that the center of gravity remains at the center of the rotor. This is critical because balancing the centrifuge not only prevents damage but also better assures a safe operation. Figure 2 demonstrates improperly loaded centrifuges.
  • Do not exceed the manufacturer’s recommended maximum speed. The operator should remain with the centrifuge until it reaches the set speed.
  • A minor vibration in the centrifuge is normal and to be expected, but excessive amounts of vibration can mean danger. If the centrifuge begins to shake or wobble, it more than likely means that it is not balanced properly and should be stopped immediately.