
1100 Series DAD and MWD Reference Manual 89
Troubleshooting and Test Functions 3
Intensity Test Evaluation
The Aligent ChemStation evaluates four spectral ranges automatically, and
displays the limits for each range, the measured intensity counts, and passed
or failed for each spectral range (see Figure 24).
Test Failed
Probable Causes
• Absorbing solvent or air bubble in flow cell.
• Dirty or contaminated flow cell.
• Dirty or contaminated optical components (achromat, windows).
• Old or non-Agilent lamp.
Suggested Actions
✔ Ensure the flow cell is filled with water, and free from air bubbles.
✔ Run the cell test (see “Cell Test” on page 90). If the test fails, exchange the
flow cell windows.
✔ Clean optical components with alcohol and lint-free cloth.
✔ Exchange the lamp.
Figure 24 Intensity Test Results
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