7 | Operating Pro control panel
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Operation Manual Lyovapor™ L-300/L-300 Pro
It is possible to use a single test or combine these tests.
It is possible to use the tests for automatic transition to the next phase.
Settings:
[Continue]
action setting
Explanation
Yes
The test is used for automatic transition.
No
The test is not used for automatic transi-
tion. Automatic transition relies on other
tests.
7.8.1
Pressure difference test
The pressure difference test establishes the difference between the readings from
two pressure sensors in the drying chamber. If the difference between the two
sensor readings is below a threshold, the freeze-drying phase can be ended.
Navigation path
➔
Method
Precondition:
R
A capacitive pressure sensor (Inficon Porter CDG020D) is connected to the
connection Vacuum Sensor 1. See Chapter 5.2.8 "Fitting pressure sensors
(option)", page 31
R
A Pirani pressure sensor (Inficon PSG55x) is connected to the connection Vacuum
Sensor 2. See Chapter 5.2.8 "Fitting pressure sensors (option)", page 31
u
Perform vacuum test. See Chapter 9.2 "Performing a vacuum test", page 98
u
Navigate to the
[Method]
menu via the navigation path.
u
Tap the name of the method that you wish to edit.
ð
The control panel highlights the selected method in green.
u
Tap the action
[[Phase]]
.
ð
The control panel shows the action Phase.
u
Tap the setting
[[End point definition]]
.
ð
The control panel shows the setting End point definition.
u
Tap
[[Pressure difference test]]
.
ð
The control panel shows the pressure difference test.
The following settings are available:
Setting
Option
Explanation
[[Pressure dif-
ference test]]
Yes/No
Switches the pressure difference
test on or off.
[[Start time]]
Enter value
Sets the time from which the
pressure difference test is to be
performed. The value relates to
the time before completion of
the primary drying phase or the
secondary drying phase.
