Buchi Rotavapor R-100 - Page 43

BÜCHI Labortechnik AG Help with faults | 8
Operation Manual Rotavapor® R-100 43/60
Fault Possible cause Remedy
Optimum distilla-
tion not
achieved
Too much back-evaporation
from the receiving flask (espe-
cially with solvent mixtures)
u Empty receiving flask and
restart distillation (see Chap-
ter6.3.2 "Removing the re-
ceiving flask", page38,
Chapter6.1.4 "Fitting the re-
ceiving flask", page30 and
Chapter6.2 "Performing dis-
tillation", page32).
Other faults in distillation
process (e.g. sudden cooling,
too little heat flow, etc.)
u Check temperatures of heat-
ing bath and coolant and ad-
just as necessary (see
Chapter6.1.1 "Preparing the
heating bath", page27 and/
or cooler operating instruc-
tions).
u Lower pressure until distilla-
tion resumes (see vacuum
pump operating instruc-
tions).