Dionex IonPac TCC Series, Руководство по эксплуатации продукта

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IonPac TCC-LP1, TCC-ULP1, and TCC-XLP1
Product Manual Page 15 of 17
Doc. No. 034973-06 ©2005 DIONEX September 2005
5. TROUBLESHOOTING GUIDE
The purpose of the Troubleshooting Guide is to help you solve operating problems that may arise while using the TCC-LP1,
TCC-ULP1, and TCC-XLP1 columns. For more information on problems that originate with the Ion Chromatograph, refer to
the Troubleshooting Guide in the appropriate operator’s manual. If you cannot solve the problem on your own, call your
nearest Dionex Regional Office (see, “Dionex Worldwide Offices” on the Dionex Reference Library CD-ROM).
5.1. High Backpressure from a Contaminated Inlet Bed Support
If the TCC-LP1, TCC-ULP1, or TCC-XLP1 column displays high backpressure, the bed support in the column inlet may be
contaminated. A contaminated bed support may also lead to loss of peak asymmetry.
WARNING
For proper operation in the SP10 Auto Neutralizer, the TCC columns should generate no more than
70 psi of backpressure at a flow rate of 0.5 mL/min.
WARNING
If any of the column packing becomes lodged between the end of the column and the bed support
washer assembly, no amount of tightening will seal the column. Be sure that the washer and the end
of the column are clean before screwing the end fitting back on to the column.
Follow the instructions below to change the bed support assembly using one of the two spare bed support assemblies
included in the ship kit provided with the column.
A. Disconnect the column from the system.
B. Using two open-end wrenches, carefully unscrew the inlet (top) column end fitting.
C. Turn the end fitting over and tap it against a bench top or other hard, flat surface to remove the bed support and
seal assembly. If the bed support must be pried out of the end fitting, use a sharp pointed object such as a pair
of tweezers, but be careful that you DO NOT SCRATCH THE WALLS OF THE END FITTING. Discard the
old assembly.
D. Place a new bed support assembly in the end fitting. Before assembling, clean the column body threads and the
end fitting threads of any resin particles. If any resin remains on the threads of either the column body or the
end fitting, the column may leak regardless of how tight the end fitting is turned onto the column body. Use the
end of the column to carefully start the bed support assembly into the end fitting.
E. Screw the end fitting back onto the column. Tighten it finger tight and then, using two open-end wrenches,
tighten it an additional 1/4 turn (25 in x lb). Tighten further only if leaks are observed.
F. Reconnect the column to the system and resume operation.
Column TCC-LP1 (P/N) TCC-ULP1 (P/N) TCC-XLP1 (P/N)
Bed Support Assembly 042955 042955 063688
End Fitting (10-32 Ferrule
Type)
052809 052809 048298