Freeze-dryer Alpha 3-4 LSCbasic
6 Operation
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Version 11/2018, Rev. 1.2 of 05/03/2019
• sb-pe
Translation of the original operating manuel
Button "Standard unit test"
Apart from the process phases of the freeze-drying process ("Freezing",
"Warm-up", "Main drying" and "Final drying") and the operating mode
"Defrosting", the button "Standard unit test" is also available. This button
opens a selection of tests with fixed parameters. After consultation with the
manufacturer, these tests can be performed in order to check the
functionality and processes of the freeze-dryer.
Fig. 30: Dialogue box "Standard unit test"
Performance test (1)
This test is used to determine the following performance parameters of a
freeze-dryer:
• vacuum decrease rate
• final vacuum
• minimum ice condenser temperature
NOTE
Prior to performing a test, ensure that the chamber is dry and unloaded
and that the ice condenser is defrosted!
Procedure:
• In the main window "Process", select the button "Standard unit test"
under "Operating mode: select/start".
• Select "Performance test" and start the test via the "Run" button.
The test will be performed. The parameters will be measured at defined
points of time, evaluated, and displayed in a dialog box (see the following
illustration).
