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the proper vessel(s) before restarting and operating the
autosampler.)
b. (Gas displacement pump-equipped models)
i. Drain the rinse system by raising the rinse solution uptake tubing
to a position that is above the liquid level in each rinse vessel (Use
caution to ensure that each rinse solution vessel is not
pressurized while performing this operation).
pressure to each vessel. Allow the pump system to run until all
solution drains from tubing attached to the rinse station outlet.
ii. After the rinse station has been pumped empty, and while the
rinse pump function is still operating, shut off the gas supply to
the autosampler. Allow the rinse system to depressurize as it
operates. This will allow the system to be fully evacuated. (Be
sure to return the rinse uptake tubing to its proper position below
the rinse solution vessel liquid level, ensure that drain tubing is
properly placed/positioned, and to restore gas supply pressure to
the system before restarting and operating the autosampler.)
NOTE:
If using rinse solution other than deionized water, flush the rinse system with
deionized water prior to removing the rinse station. For more information, see
"Flushing the Rinse Station and Flow Path" on page 50.
Shut down and unplug the autosampler power cord.
6
Move the autosampler arm away from the rinse position by gently pushing it to
the far side.
7
Moving the autosampler arm ensures that the sample probe assembly will
not be damaged while you replace the rinse station.
Remove the two thumb screws on the back of the rinse block guide to release
the rinse station.
8
Gently pull the rinse station away from the rinse block guide.
9
Disconnect rinse tubing at the rinse station, using caution to prevent any
remaining rinse solution droplets from contacting personnel or autosampler
10
components not intended for this exposure.
Wipe the rinse guide block and rinse station clean before installing the new
rinse station.
11
Attach the rinse tubing to the replacement rinse station.
12
Align the pegs on the rinse guide block with the holes in the rinse station,
ensure the rinse tubing is connected and not impeded, and gently push the
13
rinse block into place.
Replace the two thumbscrews on the back of the rinse block guide to secure
the rinse station in place.
14
ASX-112FR Autosamplers Operator's Manual
Chapter 6: Maintaining the Autosampler
Reapply gas
59
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