Labnet Z306 Hermle Universal Centrifuge - Manual (Page 22)

OPERATION
16 Z306 Instruction manual.docx
© Hermle Labortechnik GmbH
2.3 Preselection
2.3.1 Preselection of speed / RCF-value
Through the key „rpm/rcf“ (4) this pre-selection is activated. By pressing the key once the word „rpm“
(M5) flashes. By pressing the key once again the pre-selection of the centrifugal forces may be
chosen. Then it appears the flashing word „rcf“ (M6). You can set the desired values with the
adjusting knob (1). In the display (A-1) the regulated value is shown permanently, before, during and
after the run.
All with number marked passages refer to figure 17
Figure 17
As long as no rotor is inserted, the speed is adjustable between 200 rpm and maximum revolution of
the centrifuge.
If there is a rotor in the centrifuge the speed can only be pre-selected until the maximum permissible
revolution of that rotor. It is the same with the pre-selection of the RCF-value. The setting range is
between 20 xg and the maximum permissible centrifugal force of the rotor.
See „table 3: max. speed and RCF-values for permissible rotor“ (see APPENDIX P. VII). There are
listed all important values.
ATTENTION:
Please also check the maximum permissible revolutions of your test tubes! (Producer
Indication)
2.3.2 Preselection of running time
The running time can be pre-selected in three different ranges from 10 seconds up to 99 hours 59
minutes.
1. Range from 10 seconds up to 59 minutes 50 seconds in steps of 10 seconds
2. Range from 1 hour up to 99 hours 59 minutes in steps of 1 minutes
3. Range continuous run „cont”, which can be interupted by the key “stop” (10).