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ASX-112FR Autosampler Operator's Manual
Chapter 3: Installing the Autosampler
b) Take the free end of the Tygon
Insert the tubing carefully because the peristaltic pump fitting grips the tubing
tightly. If you apply too much force, the fitting can break off.
Drain - Connect the rinse station to the waste container by placing the free end
of the 3/16 inch (5-millimeter) I.D. Tygon
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station outlet (on top) into a waste container.
Ensure that the waste container is at least 30 to 60 centimeters lower than the
rinse station outlet.
Ensure that the tubing outlet is placed in the waste container so that it will not
be immersed in the waste solution. Immersion of the drain tube outlet may
cause the waste solution to back up and overflow. The drain tubing may be cut
to an appropriate length.
SUBMERGED DRAIN TUBING MAY CAUSE EQUIPMENT DAMAGE
CAUTION
Ensure that the rinse drain tubing is not submerged in the waste liquid. If the
tubing is submerged, waste liquid can back up in the rinse station, flooding the
sample tray and potentially damaging the electronics.
In the gas displacement pump arrangement, the rinse solutions are pushed by
Gas Displacement Pump Configuration
gas pressure through the dual inlets at the bottom of the rinse station. Excess
rinse solution drains at the top of the rinse station.
The gas displacement pump pressure can be adjusted with the flow
adjustment knob on the gas displacement pump panel. Pressure is adjustable
from 0 to 5 psi. Higher pressure results in a faster rinse speed.
CHEMICAL SPRAY HAZARD
WARNING
Tighten the fittings "finger-tight." Do not use any tool other than your
fingers to tighten the fittings. If the fitting is too loose, the tubing can leak
or come out of the fitting. If the fitting is too tight, the tubing and ferrules
To connect the rinse station tubing to the rinse station, complete the following
will deform and leak.
steps:
Remove the two thumbscrews that secure the rinse station and then remove
the rinse station from the autosampler by gently pulling it away from the
1
support guide posts.
Use two lengths of approximately 28 inches (72 centimeters) of the 0.020 inch
(0.5-millimeter) PFA tubing provided for the rinse solution uptake. Insert one
2
section of tubing onto each of the two lower fittings for the pre-rinse and main
rinse inputs on the side of the rinse station as noted in Figure 3-5 and Figure
3-7. Nuts and ferrules are supplied to attach the PFA-tubing. Apply gentle
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the inside channel fitting on the bottom of the peristaltic pump as
shown in Figure 3-6.
station input and insert it onto the outside channel fitting on the
bottom of the peristaltic pump as shown in Figure 3-6.
tubing protruding from middle rinse
®
tubing protruding from the rinse
®
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