Buchi FatExtractor E-500 - Loss of solvent; Boiling retardation

12 | Help with faults BÜCHI Labortechnik AG
78/88 Operation Manual FatExtractor E-500
Problem Possible cause Action
Loss of solvent Seals wrong, deformed or
damaged
u Exchange the seals.
Incorrect positioning of the
beaker/ glassware and seals
u Move each condenser a
small distance forward and
backward.
u Check that the sealings
are correctly installed.
u Contact BUCHI Costumer
Service.
Not sufficient cooling u Make sure that the cooling
fits the requirements. See
Chapter3.5 "Technical
data", page22
Incorrect installed solvent col-
lector circuit
u Make sure that the solvent
collector circuit is correctly
installed. See Chapter5.7
"Connecting the coolant
tubes to the condenser
tank bottle", page30 and
Chapter5.6 "Connecting
the solvent tubes to the
condenser tank bottle",
page29
Incorrect installed extraction
glass chamber
u Make sure that the extrac-
tion glass chamber is cor-
rectly installed. See Chap-
ter5.9.2 "Preparing the ex-
traction glass chamber
Soxhlet", page31
Boiling retardation Incorrect positioning of the
beaker
u Make sure that the beakers
are correctly installed in
the beaker brackets and
on the heating plate.
Too long waiting time between
preparation of the instrument
and start
u Start the instrument quickly
after solvent was added
Boiling surface of the beaker
is dirty
u Clean the beaker
Boiling surface of the beaker
is worn
u Replace the beaker