7 | Operating Pro control panel
Büchi Labortechnik AG
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Operation Manual Lyovapor™ L-300/L-300 Pro
u
Tap the setting
[End point definition]
.
ð
The control panel shows the setting End point definition.
u
Tap
[Temperature difference test]
.
ð
The control panel shows the temperature difference test.
The following settings are available:
Setting
Option
Explanation
[Temperature
difference test]
Yes/No
Switches the temperature differ-
ence test on or off.
[Start time]
Enter value
Sets the time from which the
temperature difference test is to
be performed. The value relates
to the time before completion of
the primary drying phase.
[Temperature
difference limit]
Enter value
Specifies the difference between
the two sensor readings below
which the end point is reached.
[Term]
Enter value
The period of time during which
the difference is not to be ex-
ceeded. If the threshold is not
exceeded for the full period of
time, the temperature difference
test is passed.
[Continue]
Yes/No
Yes : the method switches to the
next phase.
No: the phase is ended when the
set levels are reached.
[Message]
Yes/No
The control panel shows or does
not show a message as soon as
the temperature difference test
is passed.
7.8.3
Pressure rise test
NOTE
Take account of the result of the leak test in settings for
[Pressure limit]
and
[Duration]
.
Navigation path
➔
Method
Precondition:
R
A pressure sensor is fitted. See Chapter 5.2.8 "Fitting pressure sensors (option)",
page 31
R
A leak test has been successfully completed before the pressure rise test. See
Chapter 9.3 "Performing a leak test", page 99.
