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13.4.5 Brake de-energisation speed
•
Press the
key repeatedly until the parameter n
(•)
/RPM is displayed. The input field will be displayed inversely.
•
Set the desired value by means of the control knob .
13.5 Radius
•
Press the key repeatedly until the parameter r/mm is displayed and the input field is shown inversely.
•
Set the desired value by means of the control knob .
The value of the RCF/RZB adapts automatically when the radius is changed; this is shown by the indication flashing.
13.6 Automatic
buffer
The buffer comprises the program locations "
----
" and 90 to 99. Every time a centrifugation run is started, modified
centrifugation data are automatically stored in program location "
----
". The modified centrifugation data for the last 11
centrifugation runs are stored in the buffer and can be called up (see Chapter "Calling up programs").
14 Programming
14.1 Entering / modifying programs
•
Set the desired parameters (see Chapter "Entering centrifugation parameters").
•
Press the
PROG
key in order to select the parameter PROG-No. The input field will be displayed inversely.
•
Set the desired program location by means of the control knob .
If the program location indicator flashes, then this program location has already had centrifugation data assigned
to it. In this case, set a free program location or overwrite the centrifugation data by continuing.
•
Press the
STO
key once to save the settings in the desired program location.
Press the
STO
key twice to overwrite centrifugation data already stored.
14.2 Calling up programs
•
Press the
PROG
key in order to select the parameter PROG-No. The input field will be displayed inversely.
•
Set the desired program location by means of the control knob .
•
Press the
RCL
key. The centrifugation data for the selected program location will be displayed.
15 Centrifugation
If the permissible weight difference within the rotor loading has been exceeded, the drive shuts down during
the start-up, and
IMBALANCE / UNWUCHT
is displayed.
If the speed in the selected program is higher than the maximum speed of the rotor (n-max-Rotor), it will not
be possible to start a centrifugation run. The message
N > ROTOR MAX 96
will be displayed (see Chapter
"Faults").
A centrifugation run can be stopped at any time by pushing the key
STOP
.
It is possible to switch over between RPM and RCF display at any time using the
n
and
RCF
keys. When
working with the RCF display, it is necessary to enter the centrifuging radius.
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 ".
•
Switch on the mains supply switch. Switch position
Ι
.
•
Load the rotor and close the centrifuge lid.
15.1 Centrifugation
with time selection
•
Set the time or call up a program with a pre-set time (see Chapter "Entering centrifugation parameters" or
"Calling up programs").
•
Press the
START
key. The rotation indicator will appear as long as the rotor is turning.
•
When the time has expired or if the centrifugation run is interrupted by pressing the
STOP
key, run-down will take
place with the selected run-down parameters. When the rotor comes to a stop, the
symbol will flash in the
display until the lid is opened.
During the centrifugation run, the speed of the rotor or the RCF value resulting from this and the remaining time will
be displayed.
