BÜCHI Labortechnik AG Performing an extraction | 9
Operation Manual FatExtractor E-500 67/88
9.4.4 Starting a Hot Extraction
NOTE
Boiling retardation
4 The beakers contain an integrated boiling surface.
ðNo boiling aids are needed.
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Precondition:
R The instrument has been prepared.
R A method is selected.
R The sample is prepared (in the glass sample tube or in the thimbles).
u Switch on the connected chiller or open the water tap.
u Place the prepared glass sample tube or thimble with the corresponding holder in
the beaker.
u Put the beaker on the corresponding position on the heating plate.
u Close the protection shield.
u Navigate to the [Home] menu via the navigation path.
u Tap the function [Down] on the function bar.
ð The lift moves down.
u Wait until the lift is in the lower position.
u Make sure that all components of the glass setup are aligned.
Testing procedure:
Move each condenser a small distance forward and backward.
u Fill the solvent via the condenser. See Chapter "Adding solvent through the con-
denser with a funnel", page62
u Tap the function [Start] on the function bar.
ð The display shows the [Home] menu with a black background.
ð The instrument is starting the selected method.
u Wait until the solvent boils and condenses.
u Make sure that there are no leaks.
9.4.5 Ending a Hot Extraction
WARNING
Risk of dangerous vapors, hot parts and hot glassware.
A hot instrument can cause building fire, skin burns or death.
u Wait 15 min before opening the lift.
u Do not touch hot parts or surfaces.
u Use pliers to remove the glassware.
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