Centrifugation; Centrifugation With Pre-Set Time; Continuous Run; Short-Term Centrifugation - Hettich MIKRO 200 2400 Mode D'emploi

15

Centrifugation

When the centrifuge is running, according to IEC 61010-2-020, no persons, dangerous substances or objects
may be within the safety margin of 300 mm around the centrifuge.
If the permissible weight difference within the rotor loading has been exceeded, the drive shuts down during
the start-up, the unbalance display lights up, and IMBALANCE is displayed.
A centrifugation run can be stopped at any time by pushing the key
All parameters can be selected and altered during the centrifugation run (see Chapter "Programming").
You can switch-over at any time between the RPM and RCF display with the key
centrifugation radius is necessary if you are working with the RCF display.
If OPEN OEFFNEN is displayed, a further operation of the centrifuge is only possible after opening the lid
once.
• Turn on the mains switch. Switch position Ι.
•
Load the rotor and close the centrifuge lid.
15.1

Centrifugation with pre-set time

•
Adjusting time or recall a programme with pre-set time (see Chapter "Programming").
•
Press the key
START / IMPULS
•
After expiration of the time or with truncation of the centrifugation run by pushing the key
down is effected with the selected brake step. The brake step is displayed.
During the centrifugation run the rotational speed of the rotor or the subsequently resulting RCF value, the sample
temperature (only in centrifuges with cooling) and the remaining time will be displayed. After the centrifuge has ended
its run and the rotor has come to a halt, the lid opens automatically on centrifuges without cooling.
15.2

Continuous run

• Adjusting the symbol ∞ or recall a continuous run programme (see Chapter "Programming").
•
Press the key
START / IMPULS
time metering begins at 00:00.
•
Press the key
STOP / OPEN
brake step. The brake step is displayed.
During the centrifugation run the rotational speed of the rotor or the subsequently resulting RCF value, the sample
temperature (only in centrifuges with cooling) and the expired time will be displayed. After the centrifuge has ended
its run and the rotor has come to a halt, the lid opens automatically on centrifuges without cooling.
15.3

Short-term centrifugation

•
Hold down the key
START / IMPULS
time metering begins at 00:00.
•
Let go of the key
START / IMPULS
selected brake step. The brake step is displayed.
During the centrifugation run the rotational speed of the rotor or the subsequently resulting RCF value, the sample
temperature (only in centrifuges with cooling) and the expired time will be displayed. After the centrifuge has ended
its run and the rotor has come to a halt, the lid opens automatically on centrifuges without cooling.
16

Emergency Stop

•
Press the key
STOP / OPEN
With Emergency Stop the run-down is effected with brake step 9 (shortest run-down time). Brake step 9 is displayed.
. The LED in the button
START / IMPULS
. The LED in the button
START / IMPULS
in order to stop the centrifugation run. The run-down is effected with the selected
. The LED in the button
again in order to stop the centrifugation run. The run-down is effected with the
twice.
.
STOP / OPEN
lights up for as long as the rotor turns.
lights up for as long as the rotor turns. The
lights up for as long as the rotor turns. The
START / IMPULS
EN
. The input of the
RCF
, the run-
STOP / OPEN
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