1-14K
Using the Centrifuge
Version 05/2010, Rev. 1.8 of 01/09/2011- sb
29
Translation of the original operating manual
6.3.7.4
Temperature
The temperature in the rotor chamber is displayed in the lower third of
the centrifuge display. The display alternates between the
preselected temperature and the actual temperature. The actual
temperature is marked by the word “actual“in front of the temperature
value.
Temperatures between -10 °C and + 40 °C can be sele cted.
•
Press the “set” key until the temperature unit flashes on the
display.
•
Select the desired Temperature by pressing the arrow keys.
•
Confirm the selection by pressing the start key.
The data will also be accepted and saved after approx. 20 seconds if
no other key is pressed within this time period.
6.3.7.5
Precooling Program "Precool"
Depending on the substances to be centrifuged, it may make sense
to precool the centrifuge. The precooling prevents the cooled samples
in the uncooled centrifuge from heating up to an inadmissible
temperature.
Precooling at a standstill may distort the measurement results and
subsequently cause increased wear of the mechanical components.
This is why the centrifuge has a special program that precools the
centrifuge under defined conditions:
•
Press the "precool" key to load the precooling program. The
display shows 1/3 of the maximum rotor speed and the
corresponding RCF value, the runtime field indicates “
∞
”
(continuous run). ). If the set temperature is above the actual
temperature, it is limited to the actual temperature.
Once the precooling program is loaded, the set temperature can only
be set to values below the actual temperature. If the limits of the
setting range are reached during the setting process, the
temperature display flashes for approximately 1 second.
•
Press the start key to start the precooling program.
Once the set value is reached and remains stable for one minute, the
program ends with the indication "Precool OK".
•
Press the "precool" key to terminate the precooling program
prematurely. In this case, the indication "Precool off" flashes on
the display.
If the precooling program is selected and then deselected without
actually being started, the set temperature will be reset to the old
value. If, however, the precooling run is started, the limited set
temperature will also be used for the following runs, but it will not be
saved in the program.
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