Hettich UNIVERSAL 320 Gebrauchsanweisung Seite 81

7.3 Rotor detection
7.4 Cooling (for centrifuges with cooling)
7.4.1 Instructions, cooling
7.4.2 Standby cooling
7.4.3 Precooling the rotor
Starting
Set
AB1401en
■
Rotor detection is performed after starting a centrifugation run.
■
If the rotor has been changed, the centrifugation run is cancelled after
rotor detection. The rotor code (red) is displayed.
■
If the maximum speed of the rotor used is less than the set speed, the
speed is limited to the maximum rotor speed.
The temperature setpoint can be adjusted from -20 °C to +40 °C.
The lowest achievable temperature is rotor dependent.
After a centrifugation run, standby cooling is delayed and the display shows
'Lid unlocked' .
The delay time is adjustable from 1 to 5 minutes, in 1-minute increments. It
is preset to 1 minute.
■
The rotor is stationary.
■
The lid is open
1. Press and hold the
't/min = X ' is displayed after 8 seconds.
��
[Rotary knob] to set the delay time.
2. Use the
[START/IMPULS] button.
3. Press the
�� The setting is stored.
'*** ok ***' is displayed briefly.
[STOP/OPEN] button twice or wait 8 seconds to exit the
4. Press the
menu.
The rotor is stationary.
[Cooling] button.
1. Press the
[STOP/OPEN] button.
2. Press the
�� Precooling of the rotor is terminated.
Ramp-down takes place with the selected brake level.
The brake level is displayed.
The precooling speed is adjustable from 500 RPM up to the maximum rotor
speed in increments of 10 RPM. It is preset to 10000 RPM.
■
The rotor is stationary.
■
The lid is open.
1. Press and hold the
't/min = X ' is displayed after 8 seconds.
��
[Cooling] button.
2. Press the
�� Precooling speed
3. Use the [Rotary knob] to set the precooling speed.
Rev.: 13 / 11.2023
[Cooling] button.
[Cooling] button.
'RPM = XXXX' is displayed.
Software operation
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