Sigma 4-16KR, Руководство по эксплуатации

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4-16KR
Using the Centrifuge
Version 10/2010, Rev. 1.9 of 02/07/2012 31
Translation of the original operating manual
6.2.3.7 Relative Centrifugal Force (RCF)
The relative centrifugal force (RCF) is the acceleration, to which the
sample is subjected. The set value of this parameter is displayed in
the upper section of this field, with the actual value shown below. The
values are stated in g (gravitational acceleration) and depend on the
speed value (see 11.3 "Formulae – mathematical relation"). The
maximum RCF values depend on the rotor that is used. When the
maximum permissible RCF value of the rotor is reached, the "max"
display lights up.
To preselect the RCF value:
Turn the left function key until “set” appears in front of the
parameter “rcf” on the display (Fig. 6.10).
Select the option by pressing or turning the right function key.
"Set" will now flash.
Turn the right function key until the desired value is displayed.
Press the right function key to confirm the selected value. If this
is not done, the value will be automatically reset to the last
setting.
It is also possible to change the RCF value during a centrifugation
run.
Fig. 6.10:
Setting the rcf value
Changing the RCF Increments
In order to change the RCF value in steps of 1 x g (instead of in steps
of 10 x g):
Keep the stop key pressed while setting the desired RCF value
with the right function key.
6.2.3.8 Temperature
Temperatures between -10 °C and + 40 °C can be preselected.
The temperatures that can be reached depend on the rotor type,
speed, and ambient temperature.
In the centrifuges without an active heater, the temperatures above
room temperature depend on the air friction of the turning rotor.
To preselect the temperature (in steps of 1 °C):
Turn the left function key until “set” appears in the display field in
front of the parameter "Temp" (Fig. 6.11).
Select the option by pressing or turning the right function key.
"Set" will now flash.
Turn the right function key until the desired value is displayed.