Installation And Removal Of The Rotor; Loading The Rotor; Closing Biosafety Systems - Hettich MIKRO 200 Bedienungsanleitung

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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. For authorised combinations see Chapter "Anhang/Appendix, Rotoren
und Zubehör/Rotors and accessories".
•
Always fill the centrifuge containers outside of the centrifuge.
•
The maximum filling quantity for the centrifuge containers specified by the manufacturer must not be exceeded.
•
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.
12

Closing biosafety systems

In order to guarantee that it is sealed, the lid to the biosafety system has to be firmly closed.
In order to prevent the packing ring from twisting when opening and closing the cover, the packing ring must
be lightly rubbed with talcum powder or a rubber care product.
For further details of available biosafety systems see chapter "Anhang/Appendix, Rotoren und Zubehör/Rotors
and accessories". If in doubt, you should obtain relevant information from the manufacturer.
Lid with screw top, without hole in turning handle:
•
Close the lid firmly by hand by turning in clockwise direction.
Check the firm seating of the rotor on a weekly basis.
EN
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