Installation And Removal Of The Rotor; Loading The Rotor - Hettich MIKRO 200 Mode D'emploi

10

Installation and removal of the rotor


Clean the motor shaft (C) and the rotor drilling (A), and lightly grease the motor shaft
B
afterwards. Dirt particles between the motor shaft and the rotor hinder a perfect seating
of the rotor and cause an irregular operation.

Place the rotor vertically on the motor shaft. The motor shaft dog (D) has to fit in the
rotor slot (B). The alignment of the groove is labelled on the rotor.
A

Tighten the rotor tension nut with the supplied wrench by turning in a clockwise
C
D
direction.

Check the rotor for firm seating.

Loosening the rotor: Loosen the tension nut by turning in a counter clockwise direction,
and turning until the working point for lifting. After passing the working point for lifting
the rotor is loosened from the motor shaft cone. Turn the tension nut until the rotor is
able to be lifted from the motor shaft.
11

Loading the rotor

Standard centrifuge containers of glass will not stand RCF values exceeding 4000 (DIN 58970, pg. 2).

Check the rotor for firm seating.

The rotors must be loaded symmetrically. The centrifuge containers have to be distributed evenly on all rotor
positions. For authorised combinations see Chapter "Anhang/Appendix, Rotoren und Zubehör/Rotors and
accessories".
Example:
Rotor is evenly loaded

The centrifuge containers may only be filled outside of the centrifuge.

The maximum filling quantity for the centrifuge containers specified by the manufacturer must not be exceeded.
The centrifuging vessels may only be filled so
far that no fluid can be expelled from them
while the centrifuge is running.

When loading the rotor, no liquid may enter the rotor or the centrifuging chamber.

In order to maintain the weight differences within the centrifuge container as marginal as possible, a consistent
fill level in the containers is to be heeded.

The weight of the permissible filling quantity is specified on each rotor. This weight may not be exceeded.
Check the firm seating of the rotor on a weekly basis.
Not permitted!
Rotor is not evenly loaded
Centrifugal force
Fluid
EN
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