Operators Handbook DCU3 – System
7., Main function „Batch Control“
BAEDCU3 - Rev. 4.6 - 0504
7 - 4
7.2.3
Operation Automatic Sterilization Control
1.
Carry out the operations at the fermentor required for preparing the sterilization sequence,
see the Operating Manual of the fermentor for details. If necessary, adjust the sterilization
parameters (sterilization temperature, time etc.)
2.
Start the sterilization program with [STATE: start]. When requested by the system, carry out
a necessary manual step according to instructions on the display and confirm the message.
3.
Confirm the message „Sterilization finished“ with the [ACK] key after completion of the
automatic sterilization process.
If necessary, you can stop the automatic sterilization with [STATE: stop]. This automatically
initiates the cooling phase.
7.2.4 Special
Notes
During the running sterilization program the top line displays the process status
„STATE:active“.
If the process time has not yet been activated, it will automatically start when the sterilization
program is started.
Running sterilization programs can be stopped at any time. In this case the cooling phase is
automatically started to cool down the fermentor to ambient or the previously adjusted proc-
ess temperature as soon as possible.
If required an interrupted sterilization program can be restarted before the fermentor
reaches the preset process temperature.
In some fermentors a separate temperature controller is configured for the control of the
sterilization temperature.
If the display shows „STATE: lock“, the sequence is locked and cannot be started. Another
program (sequence, recipe or batch control) is active at this time. The lock will be released
and the program starts, when the running program is finished. You will find the specific in-
formation about the programs, which will lock the sequence due to equal or superior priority,
in the configuration documentation.
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