5-10 Error Messages, Diagnostic Tests, and Troubleshooting
The user-selectable sticky diagnostic tests are:
– Fix (Set) Voltage Output
– Fix (Set) Absorbance Input
– Generate Test Peaks
– Optical Filter Override
The table below lists the detector diagnostic tests by their number on the
choice list, followed by a brief description. See “Using the diagnostic tests” on
page 5-11, for more information.
Caution: Application of sticky diagnostic tests affects results. To clear
changes to the voltage output or absorbance input, or to make a
manual optical filter change, select 1, “Reset instrument” from the
Diagnostics choice list, or recycle power to the detector.
Detector diagnostic tests
Diagnostic test Description
1. Reset instrument Resets all diagnostic tests to defaults.
Removes sticky diagnostic tests and
wrench icon.
2. Sample & ref energy Allows you to view sample and reference
energy (displayed in nanoamps) on
channel A or B.
3. Input & output >> List of diagnostic tests to control four
contact closure inputs and two switch
outputs:
• Auto zero offset
• Fix absorbance
• Fix voltage
• Contact closures & events
• Previous choices <<
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