KD Scientific Centrifan PE - Manual (Page 28)

Chapter 3
3-6 Centrifan TM PE Personal Evaporator
h) On a periodic basis, empty the round bottom flask. The waste solvent should be
disposed of in a manner that is consistent with local environmental regulations. In
some applications, the round bottom flask may contain the desired product. In
others, the condensate may be extraction solvent suitable for recycling.
Note: If you are evaporating different solvents in consecutive runs, rinse out the
flask to ensure that the previous solvent is not present if there is the possibility of
chemical interactions between the solvents.
Note: The Centrifan TM is designed so that the solvent is retained in the vials and
vapor is rapidly swept from the system. The components inside the Centrifan TM
are constructed from polypropylene, stainless steel, and other materials with
solvent resistant coatings so that the possibility of corrosion due to the
evaporated solvent is minimized. In the unlikely event of liquid spilling into the
stainless liner, mop up the liquid as soon as possible and rinse with water or a
miscible solvent such as isopropanol.
3.4 Setting the Temperature
When the system is powered up, the temperature controller will indicate the ambient
temperature. To change the temperature:
a) Press the SET button 2 (two) times to display the present set point.
b) Use the ▲ or ▼buttons to display the desired setpoint temperature.
c) Press the SET button again to accept the indicated temperature as the set point.
Note: If you do not press the SET button within one minute, the display will revert
to the ambient temperature and the edited setpoint change will be lost.
3.5 Setting the Timer
The Centrifan TM PE-T version of the Centrifan TM product includes a timer module
designed to shut off the unit and stop the evaporation process at a pre-determined time.
It also has a manual mode which allows the timer module to function like an on-off switch
for the unit.
3.5.1 Operating in Manual Mode
In the manual mode, the display will show the status of the switched output of the timer
as either ON or OFF.
a) Press the SET button to toggle the output between the ON and OFF states.
3.5.2 Operating in Timer Mode
If the display is showing OFF and pressing the SET button causes the number 0 to
appear, then the module is in the timer mode. To confirm that the module is in the timer
mode, no lighted dot will be visible at the lower left corner of the display.
a) Use the ▲ or ▼buttons to set the desired amount of time (in minutes) that the
Centrifan TM is to evaporate the samples.
b) When the display shows the desired run time for the samples, press the SET button
again to turn the module ON (the display will momentarily show RUN and then
display the time remaining until the module shuts off the Centrifan
TM ). While the timer