9 | Cleaning and servicing
Büchi Labortechnik AG
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Operation Manual Lyovapor™ L-300/L-300 Pro
Component
Action
Interval
Heat exchanger
Heater
u
Remove dust and foreign objects from
the ventilation slots using compressed
air or a vacuum cleaner.
Monthly
View
u
Wipe down the display with a damp
cloth.
Monthly
Ice condenser
u
If samples have been proceed for 4
weeks, clean the ice condenser by
shutting down the instrument, start
defrost and restart at next day. See
Chapter 7.9.6 "Shutting down the
instrument", page 76.
Monthly
u
Clean the ice condenser. See
Chapter 9.4 "Cleaning the ice
condenser", page 103.
Every 6 months
9.2
Performing a vacuum test
The vacuum test checks the performance capacity of the vacuum system.
Time
re-
quired:
max. 10 min
Navigation path
➜
Configuration
➜
Servicing
➜
Vacuum test
Precondition:
R
Conditioning of the instrument has been completed.
R
A top-mount drying rack is fitted.
R
The top-mount drying rack does not contain sample.
u
Navigate to the action
[Vacuum Test]
via the navigation path.
u
Specify a required setting for the vacuum to be achieved.
u
Specify a required time within which the vacuum is to be reached.
u
Tap the function
[Start]
on the function bar.
ð
The vacuum test starts.
ð
The status bar shows the status Vacuum Test.
ð
If the vacuum pressure is not below 500 mbar after 30 s, the vacuum test
automatically aborts.
ð
After completion of the vacuum test, the
[Vacuum test]
line shows whether the
vacuum test has been passed or not.
Troubleshooting after failed vacuum test
Possible cause
Action
Top-mount drying rack not correctly fit-
ted
Fit the top-mount drying rack correctly.
Summary of Contents for Lyovapor L-300
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