45
6. In case of mechanical failure or not correct parameter during parameter setting process an
alarm will sound. Press button
to stop the alarm and review the selected parameters.
7. Press button
, the centrifuge will start running, time will gradually decrease and
when zero is reached the equipment will automatically stop (if the centrifuge needs to be
stopped during on half-way press the button
). Speed will also decrease (related to
the selected deceleration rate) and when zero is reached the centrifuge lid will
automatically open; an alarm of end of centrifugation will sound and it can be stopped by
pressing
. Centrifugation is over.
5.10 Other parameters and functions
1.
Centrifugal force setting: to set RCF instead of speed press
twice
→ Digits on
Speed/RCF will flash and RCF LED will light on → turn the parameter setting knob until
the desired value is displayed
2. For short spin of samples keep pressed button
, and the centrifuge will start running
until reached the selected speed and centrifugation time will be displayed. Once button
is released the centrifuge will stop.
3. Alarm setting: press the button
and
during 3 seconds, in the area Speed/Rcf will
be displayed “ACC00”, blinking, after that press the control 3 times quickly and “SONG0”
will appear, turn the control from “SONG1” to “SONG4” being these different sounds. The
last one “SONG5” is to cancel the alarm, wait 3 seconds without press any bottom and the
system will exit saving all settings.
4. Once speed becomes stable, the different parameters of RCF, speed, time or acceleration
and deceleration rates can be modified. After modification it is not necessary to confirm
manually since digits will flash 3 times to confirm they have been saved.
o
Before configuration of operation parameters it is necessary to install correctly the
rotor on the motor shaft.
o
In cases of errors in parameter setting process, it is possible to re-set the
parameters.
5. Calculation of relative centrifugal force (RCF)
Relative Centrifugal Force (RCF) is the necessary force to produce separation of particles
during centrifugation. The unit of this force is expressed in number of times the gravity (xg)
and its value is directly related to centrifugation speed and centrifugal radius.
The RCF is calculated by the following formula:
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