Waters 2489, Operator'S Manual

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User-selected diagnostic tests 5-11
Using the diagnostic tests
The detector employs both user-selectable and service diagnostic tests. You
access user diagnostic tests by pressing the DIAG key. Only qualified Waters
service personnel can access service diagnostic tests.
Contacting Waters Technical Service
If, after running the user diagnostic tests applicable to your problem and
troubleshooting the detector (see
“Troubleshooting” on page 5-19 ), you are
unable to correct an error condition, please contact Waters Technical Service
at 1-800-252-4752, U.S. and Canadian customers only. Other customers, call
your local Waters subsidiary or your local Waters Technical Service
Representative, or call Waters corporate headquarters for assistance at
1-508-478-2000 (U.S.).
Using the sample and reference energy diagnostic tests
You use the sample and reference energy diagnostic tests to plot the output of
the analog channels to examine noise fluctuations and to compare with the
4. Lamp, display & keypad >> List of diagnostic tests used to test lamp,
display, and keypad functions:
• Change lamp
• Test keypad
• Test display
• Previous choices <<
5. Service Diagnostic tests used by Waters Service
personnel.
6. Other diagnostics >> Diagnostic tests that allow you to
generate test peaks to check wavelength
accuracy or to override the default filter
setting:
• Generate test peaks
• Optical filter override
• Previous choices <<
Detector diagnostic tests
Diagnostic test Description