Delayed Cooling; Ramp-Down - Hettich Rotanta 460 R Mode D'emploi

7.4.4

Delayed cooling

7.4.5 Preventing the cooling system from switching on during ramp-down
AB5650en
[Cooling] button.
1. Press the
�� The button flashes until the rotor is read in for precooling.
The button lights up once the rotor has been read in.
The rotor speed or the resulting RCF value, the temperature in
the centrifuging chamber (only for centrifuges with cooling) and the
remaining or elapsed time are displayed during the centrifugation
run.
[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.
If required, the settings can be adjusted so that cooling takes place with
a time delay after the centrifugation run has started. The delay time is
adjustable from 15 to 900 seconds, in 1 second increments. No delay time
is set ex works.
1. Press and hold the
'***Machine Menu***' is displayed after 8 seconds.
��
[PROG] button repeatedly until '-> Settings' is displayed.
2. Press the
3. Press the [START] button.
'SOUND / BELL = on' or 'SOUND / BELL = off' is displayed.
��
[PROG] button repeatedly until 'Cool acc time = 0' is dis-
4. Press the
played.
5. Use the [Rotary knob] to set the desired value.
0 = no delay time
[START] button.
6. Press the
�� The setting is stored.
'Store Settings...' is displayed briefly.
'-> Settings' is then displayed.
[STOP/OPEN] button once to exit the 'Settings menu'
7. Press the
or
[STOP/OPEN] button twice to exit the 'Machine Menu' .
Press the
The settings can be adjusted so that the cooling no longer switches on
during the ramp-down at the end of the centrifugation run after reaching a
set speed.
This can prevent any potential stirring up of sediments in the sample.
This speed can be set from 0 RPM up to the maximum rotor speed (Nmax)
in increments of 10 RPM.
1. Press and hold the
'***Machine Menu***' is displayed after 8 seconds.
��
[PROG] button repeatedly until '-> Settings' is displayed.
2. Press the
[START] button.
3. Press the
'SOUND / BELL = on' or 'SOUND / BELL = off' is displayed.
��
Rev.: 24 / 01.2024
[PROG] button.
[PROG] button.
Software operation
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