Thermo Scientific Dionex ICS-5000 Operator's Manual page 235

•
Inoperative check valves
Replace the check valve cartridges (see
•
Insufficient mixing (gradient pump only)
The static mixer may be dirty or contaminated. Flush with IPA (isopropyl
alcohol). If this does not eliminate the problem, install a new mixer (GM-
3, P/N 042126; GM-4, P/N 049135).
•
Eluent is contaminated
1. Clean all eluent reservoirs thoroughly (inside and out) with ASTM
Type I (18 megohm-cm) filtered and deionized water that meets the
specifications listed in
air. If a reservoir still appears dirty, or if there is a slimy film on the
interior, follow the cleaning instructions in
2. Flush the system with ASTM Type I (18 megohm-cm) filtered and
deionized water that meets the specifications listed in
3. Replace all end-line filters (P/N 045987). See
instructions.
4. Prepare new stock solution.
5. Prepare fresh eluent. To ensure eluent purity, prepare all eluents with
electrochemical-grade chemicals, and ASTM Type I (18 megohm-
cm) filtered and deionized water that meets the specifications listed in
Section
•
Problem unrelated to the pump
1. The eluent concentration may be wrong, or the eluent may have been
prepared with impure chemicals/eluents or water. To ensure eluent
purity, prepare all eluents with spectro-grade eluents, reagent-grade
chemicals, and ASTM Type I (or better) filtered and deionized water
that meets the specifications listed in
2. The column may be the source of the problem. Refer to the column
manual for troubleshooting assistance. Column manuals are provided
on the Thermo Scientific Reference Library DVD (P/N 053891).
3. The injection valve may be the source of the problem. Rebuild the
injection valve (see
Doc. 065342-06 12/11
Section
1.5.
Section 9.22).
8 • Troubleshooting
Section 9.6).
1.5. Dry with clean, particulate-free
Section 9.4.
Section 4.6
Section 1.5.
Section 1.5.
for
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