Thermo Scientific Dionex AS-DV, Руководство оператора

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5 • Service
This chapter describes Dionex AS-DV service and repair procedures that users
may perform. Procedures not included here, including electronics-related repair
procedures, must be performed by Thermo Fisher Scientific personnel. For
assistance, contact Technical Support for Dionex products. In the U.S. and
Canada, call 1-800-346-6390. Outside the U.S. and Canada, call the nearest
Thermo Fisher Scientific office.
Before replacing any part, refer to the troubleshooting information in Chapter 4 to
correctly identify the cause of the problem.
5.1 Replacing Tubing and Fittings
The Dionex AS-DV is plumbed with the needle and tubing assembly listed below:
Dionex AS-DVtubing connections use high-pressure 10-32 fitting bolts
(P/N 074449) and high-pressure double-cone ferrules (P/N 074373).
To tighten a high-pressure fitting bolt and ferrule:
1. Use your fingers to tighten the fitting bolt as tight as you can.
2. Then, use a wrench to tighten the fitting an additional three-quarter turn
(270 degrees).
3. If leaks occur, replace the fitting bolt, ferrule, and tubing.
Substituting non-Dionex/Thermo Scientific parts may impair a module’s
performance, thereby voiding the product warranty. Refer to the
warranty statement in the Dionex Terms and Conditions for more
information.
Tubing Assembly Used for
Dionex AS-DV Sampling Tip Kit
(P/N 071575) Connection from sampling head to
injection valve