Enter Centrifugation Parameters - Hettich ROTINA 420 Mode D'emploi

EN

Temperature (only for centrifuge with refrigeration)
T/°C
Adjustable in degrees Celsius (°C) or in degrees Fahrenheit (°F). For setting the temperature unit, see
chapter "Temperatur-Einheit einstellen/Setting the temperature unit".
Parameters T/°C = degrees Celsius (°C).
Adjustable from -20°C to +40°C, in 1°C increments (for the heat/cool option, adjustable in the range from -
20°C to +90°C).
Parameters T/°F = degrees Fahrenheit (°F).
Adjustable from 4°F to +104°F, in 1°F increments (for the heat/cool option, adjustable in the range from -
4°F to +194°F).
The lowest temperature that can be reached depends on the rotor (see chapter "Anhang/Appendix,
Rotoren und Zubehör/Rotors and accessories").

Activate or deactivate the heater, parameter Heater on/off (only with heating/cooling option).

Scroll backwards in the menus.

Call up programs and program linkages; parameter RCL.
PROG
Programs: Program locations 1 to 99 (for centrifuge without cooling) and program locations 1 to 98 and
PREC (for centrifuge with cooling). Program linkages: Program locations A to Z.

Save programs and program linkages; parameter STO.
99 programs can be saved (for centrifuges without refrigeration: program places 1 to 99, for centrifuges
with refrigeration: program places 1 to 98 and PREC). The program place PREC (PRECOOLING) is
reserved for the precooling program. Program place 0 is used for temporary storage for centrifuge data
from the last centrifugation run. No programs can be saved at this program place.
It is possible to save 25 program linkages (program locations A to Z; there is no program location J). A
program linkage can consist of 20 programs.

Link programs; parameter EDIT.

Call up the "Machine menu" (keep the key press for 8 seconds).

Scroll forwards in the menus.

Start centrifugation run for pre-cooling the rotor (only for centrifuges with cooling). The LED in the key is lit
during the centrifugation run, as long as the rotor is revolving.
The centrifugation run for pre-cooling the rotor is done automatically with the program PREC
(PRECOOLING).

Start centrifugation run. The LED in the key is lit during the centrifugation run, as long as the rotor is
START
revolving.

Short-time centrifugation.
The centrifugation run occurs while the key is kept pressed. The LED in the key is lit during the
centrifugation run, as long as the rotor is revolving.

Saving entries and changes.

In the "Machine Menu", call up the submenus.

End centrifugation run.
STOP
OPEN
The rotor decelerates with the preset run-down parameters. The right-hand LED in the button lights up
until the rotor is stationary. Once the rotor is stationary the left-hand LED flashes in the button. Pressing
the button twice triggers the EMERGENCY STOP.

Unlock the lid.
The left-hand LED in the button goes out.

Exit the parameter input and the menus.
18

Enter centrifugation parameters

It is not possible to input the centrifugation parameters if a program lock has been set. The functions of the
various program locks are described in the chapter "Setting program locks".
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.
If several parameters are input, the
accept all changes.
If parameters are changed, the program place number is displayed in parentheses (). This means that the
centrifugation data in the display no longer corresponds to the centrifugation data from the program place that
has been saved.
You can no discontinue entering parameters at any time by pressing the key
adjustments are not saved.
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key must be pressed after setting the last parameter in order to
START
Rev. 12 / 04.2020
. In this case the
OPEN / STOP
AB4701DEENFRIT