KD Scientific Centrifan PE - Manual (Page 12)

Chapter 1
1-2 Centrifan TM PE Personal Evaporator
1.2 Mode of Operation
The operation of the Centrifan TM PE involves spinning of the liquid samples via a rotor
and directing a gas flow from a fan over the solvent surface to accelerate evaporation.
The vaporized solvent is swept from the sample area and directed to the cold trap where
the vapors are condensed. The solvent free gas is then returned to the Centrifan
TM PE
enclosure to pick up more solvent vapor. The two circulation paths are traced in a basic
functional diagram of the instrument depicted in Figure 1-2.
Figure 1-2: Evaporation and Condensation Gas Flows
The actual circulation paths are traced through a cross section of the instrument depicted
in Figure 1-3.