Installation And Removal Of The Rotor; Loading The Rotor; Control Panel; Speed Area - Hettich MIKRO 120 Bedienungsanleitung

EN
11

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 up the clamping nut of the rotor by turning it clockwise by hand.
•
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.
12

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.
13

Control panel

The control panel is divided into four areas.
•
Speed
•
Rotation display
•
Time
•
Keys
RPM x 100

Speed area

Rotation area

13.1 Speed area
The speed area contains the speed display which indicates the preselected speed or the ACTUAL speed during
operation.
The speed can be preselected or changed during operation with the
display flashes in seconds until the lid is opened or a key is activated.
13.2 Rotation area
The rotation area contains the rotation display, which illuminates and rotates anti-clockwise whilst the rotor is turning.
When the symbols lights up, the rotor is stationary and the lid can be opened.
When the lid is unlocked, the
22/56
For rotor order no. 1224, the clamping nut must be tightened with the spanner
provided.
START
t
STOP
Time area Key pad
symbol lights up.
and arrow keys. At the end of operation, the