Adjustment Possibilities; Entering Centrifugation Parameter - Hettich UNIVERSAL 320 Mode D'emploi

13.3

Adjustment possibilities

PROG RCL Program position of the called-up program.
t/min Running time. Settable from 0 - 99 min, in 1 min increments.
t/sec Running time. Settable from 0 - 59 s, in 1 second increments.
Continuous run "∞". Set parameter t/min and t/sec to zero.
RPM Revolutions per minute. A numerical value from 500 RPM up to the maximum speed of the rotor can be
set. Maximum speed of the rotor, see Chapter "Anhang/Appendix, Rotoren und Zubehör/Rotors and
accessories". Settable in increments of 10.
RAD/mm Centrifugation radius. Input in mm. For centrifugation radius see Chapter "Anhang/Appendix, Rotoren
und Zubehör/Rotors and accessories". The input of the radius is only possible if the RCF display
(> RCF <) is selected.
RCF Relative centrifugal force. A numerical value can be set, which gives a speed between 500 RPM and the
maximum speed of the rotor. Adjustable up to 100 in intervals of 1, and from 100 in intervals of 10. The
RCF value is automatically rounded up or rounded down with regard to the RPM interval. The input of
the RCF is only possible if the RCF display (> RCF <) is selected.
Starting steps 1 - 9. Step 9 = shortest starting time, Step 1 = longest starting time.
Brake steps 0 - 9. Step 9 = shortest run-down time, Step 1 = long run-down time,
Step 0 = longest run-down time (brakeless run-down).
T/°C Temperature Set Point (only in centrifuges with cooling). Adjustable from -20°C to +40°C, in 1°C
intervals. The lowest obtainable temperature depends on the rotor (see Chapter "Anhang/Appendix,
Rotoren und Zubehör/Rotors and accessories").
PROG STO Program position on which the program is stored. 9 programs can be stored (program positions 1 - 2 - 3 -
... 9). The programme position # serves as temporary storage for altered adjustments.
14

Entering centrifugation parameter

If no key is pressed for 8 seconds long after the selection or during the input of parameters, the previous
values will be shown in the display. The input of parameter then has to be executed again.
•
Select the RPM or RCF display with the key
•
Select the desired parameters using the button
In order to set continuous operation, the parameters t/min and t/sec must be set to zero with the
Continual running is represented in the display by the following symbol, "∞".
•
After input of all parameters, press the key
position #. As confirmation, ∗∗∗ ok ∗∗∗ will be displayed for a short period.
The data on the programme position # will be overwritten with every input of parameters and pressing of the
key .
START / IMPULS
. RCF values are displayed in > <.
RCF
and set using the knob
SELECT
in order to store the adjustments on the programme
START / IMPULS
.
knob.
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