Freeze-dryer Alpha 3-4 LSCbasic
6 Operation
Version 11/2018, Rev. 1.9 of 01/12/2021
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Translation of the original operating manuel
Viewing or editing the set values
• Press the button "Set" (see chapter 6.4.1.1 - "Main window "Process"").
The following dialogue box will be displayed:
1
Set value "Section time"
2
Set value "Vacuum"
3
Set value "Pressure
notification"
Fig. 54: Dialogue box "Set values: view/edit"
Section time (1)
The section time defines the duration of the individual phases and is stated
in hours and minutes (h:m).
Vacuum (2)
NOTE
The
→
working range
of the vacuum sensor during the freeze-drying
process is between 0.005 mbar and 1 mbar. The system cannot indicate
any values above 1 mbar.
NOTE
The capacitive vacuum sensors, which are necessary for the freeze-
drying of solvent-containing products, can only provide information about
part of the vacuum control range due to their design.
If a value beyond the working range is entered, an error message will be
issued (see the following illustration) and the system will automatically
correct the value.
