System troubleshooting 4-3
• Loss of peak resolution
• Abnormal peak shape (smaller than expected, broad, tailing, etc.)
• Incorrect qualitative and/or quantitative results
4. For each isolated symptom, identify a list of suspected causes.
5. Run the performance tests for each chromatographic instrument to
quickly determine if a problem exists with a particular instrument.
6. Read the troubleshooting information in Troubleshooting hardware on
page 4-8. This table is organized according to the parameters in step 3
and allows you to narrow the possible causes of a symptom and find
suggested corrective actions.
If you determine that there is a problem related to another component, refer
to the appropriate operator's guide.
When to call Waters Technical Service
Many problems with a binary gradient module can be easily corrected.
However, if you cannot correct a condition, you can contact Waters Technical
Service. If you are in the USA or Canada, contact Waters Technical Service
(800 252-4752). If you are not in the USA or Canada, visit
http://www.waters.com
and click About Waters > Worldwide Offices, or phone
your local Waters subsidiary or Waters’ corporate headquarters at 34 Maple
Street, Milford, MA 01757, USA. When you call, have the following
information available:
• Completed normal operation checklist for the method you are using
• Nature of the symptom
• Waters Binary Gradient Module serial number
•Flow rate
• Operating pressure
• Mobile phase(s)
• Detector settings
• Type and serial number of column(s)
•Sample type
• Control mode (MassLynx, FractionLynx, No interaction, or other)
• Software versions and serial numbers
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