Freeze-dryer Gamma 1-16 LSCplus
Freeze-dryer Gamma 2-16 LSCplus
6 Operation
Version 04/2013, Rev. 2.10 of 09/03/2020
• sb-dc
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Translation of the original operating manual
Option: Leakage test (2)
The leakage test is used to test the chamber of the freeze-dryer for
tightness in view of any gaseous or liquid media. Since absolutely tight
components simply do not exist, a leak rate is determined.
Procedure:
• In the main window "Process", select the "Set" button to open the
dialogue box "Set values: view/edit". Then, select the button "Leakage
test".
• Enter the test time (value between 10 min and 18 h) and chamber
volume (see the technical data), accept the entries and return to the
main window.
• In the main window "Process", select the button "Standard unit test"
under "Operating mode: select/start".
• Select "Leakage test" and start the test via the "Run" button.
The parameters for the leakage test have been developed by Martin Christ
Gefriertrocknungsanlagen specifically for the freeze-dryers. In a first step,
these parameters (vacuum, ice condenser temperature) must be reached.
It is not until the conditions are fulfilled that the pressure control valve
closes. Then, the actual leakage test is performed in a second step. The
result will be indicated by way of a dialogue box.
Evaluation:
The leak rate that is calculated after the test provides information
concerning the tightness of the system. If the threshold value is not
reached, the test has been passed. If it is exceeded, the test has been
failed.
Button "Stop" (9)
Pressing this button stops the current process. The system switches to the
standby status.
