Centrifugation; Centrifugation With Pre-Set Time; Continuous Run; Short-Term Centrifugation - Hettich ROTOFIX 46 Mode D'emploi

19

Centrifugation

When the centrifuge is running, according to EN / 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 "Entering centrifugation
parameter").
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.
If R xx n-max xxxxx is displayed, then no centrifugation run has taken place as the rotor was changed
beforehand, refer to Chapter " Rotor Identification ".
 Turn on the mains switch. Switch position .

Load the rotor and close the centrifuge lid.
19.1

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
effected with the selected brake step. The brake step is displayed.
During the centrifugation run, the rotor speed or the RCF value, the temperature in the centrifuging chamber (only in
centrifuges with heating), and the remaining time are displayed.
19.2

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 in order to stop the centrifugation run. The run-down is effected with the selected brake
STOP
step. The brake step is displayed.
During the centrifugation run, the rotor speed or the RCF value, the temperature in the centrifuging chamber (only in
centrifuges with heating), and the elapsed time are displayed.
19.3

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 rotor speed or the RCF value, the temperature in the centrifuging chamber (only in
centrifuges with heating), and the elapsed time are displayed.
20

Emergency Stop


Press the key twice.
STOP
With Emergency Stop the run-down is effected with brake step 9 (shortest run-down time). Brake step 9 is displayed.
If brake step 0 was pre-selected, the run-down time is technically longer than with brake step 9.
AB4600DEENFRIT
. The LED in the button
START / IMPULS
. The LED in the button
START / IMPULS
. The LED in the button
again in order to stop the centrifugation run. The run-down is effected with the
Rev. 07 / 05.2020
.
STOP
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-down is
STOP
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