Laboratory centrifuge Sigma 2-7, Sigma 2-7 Cyto
Laboratory centrifuge Sigma 2-7 IVD
6 Using the centrifuge
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Version 07/2015, Rev. 1.12 of 16/07/2019
• sb
Translation of the original operating manual, part no. 0702802
6.3.7
Runtime
The preselected total runtime is displayed in the lower line of the display.
During centrifugation, the remaining runtime is displayed. The runtime of
the centrifuge can be set at one-second-intervals up to 99 minutes and 59
seconds.
• To select a runtime, press the set key repeatedly until the time unit
flashes on the display.
• Select the desired runtime by pressing the arrow keys.
• Confirm the selection by pressing the start/stop key.
The data will also be accepted and saved after approx. 20 seconds if no
other key is pressed within this time period.
6.3.7.1
Changing the runtime during centrifugation
The preselected runtime can be changed during centrifugation.
• Press the "set" key repeatedly until the time unit flashes on the display.
• Change the desired runtime by pressing the arrow keys. The
parameters will be accepted immediately.
NOTE
If the centrifugation time is changed during the run, the centrifuge will run
for the entire new time and will disregard the previous runtime that has
already elapsed.
6.3.7.2
Short run
During the short run, the centrifuge accelerates at maximum power until the
maximum speed is reached.
• Keep the quick run key pressed during the short run.
The message "short run" and the duration of the short run are displayed.
When the quick run key is released, the centrifuge decelerates at maximum
power to a standstill.
After the short run, the lid unlocks automatically and the program that was
set beforehand is displayed again.
6.3.7.3
Continuous run
During the continuous run, the runtime of the centrifuge is unlimited and
must be stopped manually. The centrifuge accelerates during the
continuous run until the set speed is reached.
• To start the continuous run, press the set key until the time unit flashes
on the display.
• Press the down-key (arrow key) until the display switches from "00:10"
to "--:--".
After 99 min 59 sec, any additional runtime will no longer be displayed, but
the centrifugation will continue.
• To stop a continuous run, press the start/stop key. The centrifugation
will end.
• Enter a runtime. The centrifugation will end after this time.
