KD Scientific Centrifan PE - Manual (Page 23)

Centrifan TM PE Personal Evaporator 3-1
Chapter 3 Operation
3.1 Preparing the Centrifan TM for Operation
To prepare the system for initial operation:
Note: The Centrifan TM PE and the attached cold trap should be placed in a
convenient location for loading and removing sample vials and for the occasional
addition of dry ice to the cold trap.
a) Insure that all hoses are routed correctly and securely pressed onto their fittings.
b) Unlatch the lid and open the instrument for rotor access. Remove the splitter disk
and any vials. Make sure the thumbscrew in the center of the rotor is reasonably, but
not overly, tight.
c) Turn the centrifugal fan containing the rotor and look inside the Centrifan TM PE
enclosure to make sure there is no foreign material in the unit which could cause
damage to the equipment or your samples. The fan should turn freely and make no
sound. Spin the rotor again and latch the lid to insure there is no contact between
the rotor components and the heatsink on the underside of the lid.
Note: Ensure that the system is configured for the voltage supplied by the mains.
The voltage configuration in indicated on the rear of the unit.
d) Check that the power switch at the back of the system is set to off and plug the unit
into an appropriate AC power source. The line cord receptacle is located at the rear
of the unit.
e) Open the lid again, reach behind the unit just to the outside of the power cord and
turn on the main power switch. The temperature controller display will illuminate red
indicating that the power is on.
f) Latch the lid again which will cause the rotor to begin spinning. Allow the rotor about
5 seconds to achieve full speed and be aware of any unusual noise or vibration. The
instrument is extremely quiet and smooth running. One way to know that it is running
properly is to listen for the distinctive rushing sound of the trapped gas volume
circulating within the enclosure.
g) When it is clear that the unit is running properly, lift the lid. The motor brake will stop
the rotor in a few seconds. The unit is now ready to install the sample containers, the
splitter disk, and to dry samples.
Warning: Let the centrifugal fan and rotor come to a complete stop without using
your hand or any other object as a brake to stop the rotor assembly more quickly.
Some rotor configurations contain plastic and are relatively fragile and can be
damaged if they contact a solid object sharply. Replacement of carrier
components is not covered under the warranty.