ASXPRESS PLUS Rapid Sample Introduction System Operator’s Manual
Chapter 4: Preparing an ASX-260 or ASX-520 Autosampler
32
Notes
Leave one input of the external pump disconnected (open to the atmosphere).
The bubbles in the rinse solution improve the cleaning action of the rinse
station.
Rinse solution may be recycled by directing the waste tube into the rinse
solution container, if appropriate for your application.
Make sure that the end of the waste tube is above the surface of the liquid in
the container.
A short length of 1/4" OD tubing is used as an intake "straw."
Figure 4-7 Rinse Intake Tube
A short length of 5/16" OD tubing can be connected to the output port of the
rinse station, then connected with an adapter to the 1/4" OD tubing. This
makes it easier to remove the tubing from the rinse station.
The peristaltic pump built into the autosampler removes rinse solution. To
avoid overflowing the rinse station, both channels of the pump should be used,
and the pump must be running at its fastest speed. To set the pump speed,
open up the autosampler (page 34) then set the pump speed jumper (page 42).
If using an EXR-8 extended rack, tubing between the autosampler and
stationary objects (the external pump and rinse container) should run through
the "chain." Tubing on the autosampler should be secured using the tray and
clips, to prevent it from shifting as the autosampler moves. Bend the waste line
in a "U" shape so that it can be clipped in place, but be careful not to kink the
tubing.
The following photos show how the tubing might be arranged:
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