Opening And Closing The Lid; Opening The Lid; Closing The Lid; Installation And Removal Of The Rotor - Hettich MIKRO 120 Bedienungsanleitung

EN
8

Opening and closing the lid

8.1

Opening the lid

The lid can only be opened when the centrifuge is switched on and the rotor is at rest. If it cannot be
opened under these circumstances, see the section on "Emergency release".
•
Press the key and open the lid. The symbol " " (lid open) illuminates in the rotation indicator
8.2

Closing the lid

Do not bang the lid shut.
•
Place the lid and press the lid grip down slightly. The symbol " " (lid closed) illuminates in the rotation indicator
.
9

Installation and removal of the rotor

•
Clean the motor shaft (C) and the rotor drilling (A), and lightly grease the motor shaft
A
afterwards. Dirt particles between the motor shaft and the rotor hinder a perfect seating
B
of the rotor and cause an irregular operation.
•
Place the rotor vertically on the motor shaft. The driver areas (D) of the motor shaft
must be located in the groove (B) of the rotor. The alignment of the groove is labelled
on the rotor.
D
C
•
Tighten the rotor tension nut with the supplied wrench by turning in a clockwise
direction.
•
Check the rotor for firm seating.
•
Loosening the rotor: Loosen the tensioning nut by turning anti-clockwise. Turn the
tensioning nut until the rotor is able to be lifted from the motor shaft.
10

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.
11

Aerosol tight sealing of angle rotors

To ensure aerosol tightness, the lids of aerosol-tight angled rotors must be closed tight by
turning manually clockwise by hand.
For available aerosol tight angle rotors, please see chapter "Anhang/Appendix, Rotoren und
Zubehör/Rotors and accessories".
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