Loading Swing Out Rotors; Loading And Overloading Of Rotors; Lid Control; Lid Open - OHAUS Frontier 2000 Serie Handbuch

EN-6

3.1.3 Loading swing out rotors

Loading of the buckets / vessels must be made in accordance to the figure below.
It is allowed to operate e.g. a 4-place-rotor with 2 loaded buckets only. But the loaded buckets must be
opposite to each other. Make sure that the unloaded buckets also be put inside the rotor (see below).
In principle swing out rotors may not be taken into operation until all buckets or racks are put into the rotor.
The bolts at the rotor must be greased with the "High TEF oil". The sample tubes have to be filled evenly by
eye and put into the drillings or tube racks. The weight difference of the loaded buckets should not exceed
approx.1.0 g.
ATTENTION!
Swing out rotors may be taken in operation only if all locations are filled in with either
four buckets or four carriers – do not mix buckets and carriers together!!
ATTENTION!
Do not operate the centrifuge with rotors or buckets which show any signs of
corrosion or mechanical damage.
Do not operate with extremely corrosive substances, which could damage the rotor
and buckets. In case of any questions, please contact the manufacturer!

3.1.4 Loading and overloading of rotors

All approved rotors are listed with their maximum speed and maximum filling weight in "table 2 permissible
net weight" (See APPENDIX).
The maximum load permitted for a rotor, which is determined by the manufacturer, as well as the maximum
speed allowed for this rotor (See label on rotor), must not be exceeded. The liquids the rotors are loaded with
should have a maximum homogeneous density of 1.2 g/ml or less when the rotor is running at maximum
speed.
In order to spin liquids with a higher density, the speed has to be reduced according to the following formula:
Reduced speed
Example:
If in case of any questions, please contact the manufacturer!
To determine the relative centrifugal force(RCF/G-force) for a specific adapter, you can calculate per DIN 58
970 using the attached formula:
RCF = 1.117862*10 5*n2*rmax
n: revolutions per minute (RPM)
rmax: max centrifuging radius in cm by using the bottom of tubes

3.2 Lid control

3.2.1 Lid open

Press the button. After the mechanical lock is unlocked, the lid can be opened. Note: The top cover will
automatically pop open with a sound when unlocked.

3.2.2 Lid lock

Figure.9 WRONG
Frontier
Figure.10 CORRECT
of the rotor
TM
2000 Series Centrifuge