Refrigerated Centrifuge Sigma 3-30KS
6 Using the centrifuge
54 / 93
Version 07/2012, Rev. 1.22 of 02/06/2021
• sb
Translation of the original operating manual, part no. 0701302
Restrictions
• Acceleration and deceleration curves can include intervals with a
positive slope as well as intervals with a negative slope and also
intervals with 0 slope.
• The slope of the curve intervals can be 1 min
-1
/sec (rpm/sec) minimum
and 1000 min
-1
/sec (rpm/sec) maximum.
• Quadratic curve intervals are only possible between 0 and 1000 min
-1
(rpm) maximum. If a final speed > 1000 min
-1
(rpm) is selected, this
interval will automatically become linear above 1000 min
-1
(rpm).
• The possible runtime results from the maximum possible speed
(depending on the rotor) and from the slope limitation.
Example 1:
Start speed 0 min
-1
(rpm), final speed 100 min
-1
(rpm),
runtime 1 hour not possible, since the necessary slope < 0.03 min
-1
(rpm), which means that it is beyond the defined range.
Example 2:
Start speed 0 min
-1
(rpm), final speed 15000 min
-1
(rpm),
runtime 10 sec. not possible, since the necessary slope is 1500 min
-1
(rpm), which means that it is beyond the defined range.
→
6.3.2.10 Help menu
The help function is symbolised by the " " symbol on the menu bar. It
provides a short description of the control elements of the selected option.
Activating and deactivating the help function
• Select the question mark on the menu bar and press the function knob.
• Quit the help function by selecting the question mark and by pressing
the function knob again.
Parameters can still be changed when the help function is activated.
Fig. 25: Menu "Help"
