Hettich ROTINA 420 R Mode D'emploi page 110

Software operation
Entering the maximum per-
missible number of run cycles
Resetting the cycle counter
and entering the maximum
permissible number of run
cycles
44 / 64
The cycle counter can be disabled for rotors and buckets that are not
marked with the maximum permissible number of run cycles. The number
of run cycles (centrifugation runs) of the rotor code used is displayed briefly
every time the lid is opened.
If the maximum permissible number of bucket run cycles entered is
'*MAX CYCLES PASSED*' is displayed after each start of a
exceeded,
centrifugation run.
The centrifugation run must be restarted. The buckets must be replaced
with new ones.
If the buckets have been replaced, the cycle counter must be reset to
The maximum permissible number of run cycles must be entered after
starting the first centrifugation run.
'Enter max cycles = á30000ñ' is displayed.
[Rotary knob] to set the maximum permissible number of run
1. Use the
cycles indicated on the bucket.
[START] button.
2. Press the
�� The setting is stored.
'Store max cycles ...' is displayed briefly.
The cycle counter must be reset to
maximum permissible number of run cycles must be entered.
1. Press and hold the
'***Machine Menu***' is displayed after 8 seconds.
��
[PROG] button repeatedly until '-> Operating Time' is dis-
2. Press the
played.
[START] button.
3. Press the
�� The external operating hours are displayed.
[PROG] button repeatedly until the run cycles are displayed.
4. Press the
[RCF] button.
5. Press the
�� The number of run cycles is displayed in brackets á ñ.
[Rotary knob] to the left to reset the number of run cycles to
6. Turn the
'0' .
[RCF] button.
7. Press the
�� The maximum permissible number of run cycles is displayed in
brackets á ñ.
[Rotary knob] to set the maximum permissible number of run
8. Use the
cycles indicated on the bucket.
[START] button.
9. Press the
�� The settings are stored.
'Store cycles ...' is displayed briefly.
The run cycles are displayed.
[OPEN/STOP] button twice to exit the 'Operating Time'
10. Press the
menu
or
[OPEN/STOP] button three times to exit the '***Machine
Press the
Menu***' .
Rev.: 19 / 02.2025
'0' after inserting new buckets. The
[PROG] button.
'0' .
AB4701en