BUCHI Rotavapo R-220 SE - Manual (Page 22)

4 Description of function
22 R-220 SE Operation Manual, Version F
Heating bath with
heating liquid
Evaporating solvent
Rotation drive for
evaporating flask
Cooler with
cooling medium
Optimal condensation
zone range
(~ 80% cooler height)
Condensated solvent
a
b
c
Safety reserve
a Evaporation area
The solvent is heated by means of a heating bath. The turbulent mixing inside the rotating
evaporating flask results in an increased evaporation rate.
The drive unit offers a wide range of rotational speeds to perfectly match different evapo-
ration tasks. It also leads to an even mixing of the sample, thus preventing stationary
overheating in the flask. When drying powders or pasty materials, the rotation ensures
smooth and
thorough drying.
b Cooling area
The solvent vapor quickly enters the condenser. Here, the energy in the solvent vapor is
transferred to the cooling medium (mostly water), so that the solvent condenses.
c Receiving flask
The receiving flask collects the condensed solvent.
NOTE
For information about optimum distillation conditions see section 6, Operation.