7
the tubing firmly so that it completely covers the barb of the fitting. It helps to use your other
hand to apply counter-pressure.
Pumped Drain Arrangement
Normally, the peristaltic pump channel which is closest to the autosampler chassis is used to
pull liquid out of the rinse station and the channel which is farther from the autosampler is
used to feed in the fresh rinse solution.
To connect the rinse station using the pumped drain, complete the following steps. Repeat
this procedure for both the “Oils” and “Coolants” peristaltic pump.
1
Connect up to 1.8 meters of tubing from the outlet fitting of the pump (the lower fitting of the
channel closest to the autosampler) to the waste container.
3.33
F
IGURE
10
Connecting the Waste Line
Ensure that the tubing outlet is placed so that it will remain above the surface of the liquid in
the waste container. If the end of the tube is immersed, the waste solution might back up and
overflow.
2
Cut two pieces of tubing to go between the peristaltic pump and the rinse station; ensure
that the tubing is long enough to reach without any sharp bends or kinks. For the Oils side,
the tubing should be about 25 cm (10 inches) long; for the Coolants side, it should be about
28 cm (12 inches) long.
F
IGURE
11
Cutting Tubing
