3 • Operation and Maintenance
Doc. 065330-05 03/2020
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5. When the system pauses the first time, insert the sample lines into a
clean container filled with a solvent.
6. If the solvent used in
is immiscible in water: When the system
pauses the second time, remove the sample lines and insert them into
a clean container filled with an intermediate solvent. Press
CONT
when ready.
If the solvent is
not
immiscible in water: Go directly to
.
7. When the system pauses the last time, remove the sample lines and
insert them into a clean container filled with deionized water. Press
CONT
when ready.
3.7.7
Flushing the Solvent Lines
When using samples that tend to crystallize, or corrosive solvents that
could attack valves or other Dionex AutoTrace 280 parts over time, flush
the solvent and sample lines with water or an inert, soluble solution
whenever the system will not be processing samples.
The Prime Solvents diagnostic method (#29), which is typically used for
this purpose, flushes all five solvent lines. If necessary, you can create a
customized method that flushes fewer than five solvent lines (see
To flush the solvent lines:
1. Fill the solvent reservoirs with the solvent of choice for flushing.
2. Check that the tubing is fully submerged in the solvent.
3. Swirl the solvent in the containers to rinse the outside surface of the
tubing and weights.
4. Select the Prime Solvents diagnostic method:
a.
Press
LOAD
to display the
LOADING METHOD
screen.
b. Press
LOAD
to increment the displayed method to 29.
Do not use acetone as a solvent to clean the sample path; it is harmful
to the sample pumps.
