180 1220 Infinity II LC System User Manual
9
Test Functions and Calibration
Diode Array Detector (DAD)
Figure 55 Holmium Oxide Test Results (report)
Test Failed
Probable cause Suggested actions
1
Absorbing solvent or air bubble
in flow cell.
Ensure the flow cell is filled with water.
2
Incorrect calibration
Recalibrate (see “Wavelength Verification and
Recalibration” on page 188) and repeat the test.
3
Dirty or contaminated flow cell.
Run the cell test (see “Cell Test” on page 184). If the test fails,
exchange the flow cell windows.
4
Dirty or contaminated optical
components (achromat, windows).
Clean optical components with alcohol and lint-free cloth or
replace the parts (see “Intensity Test” on page 177).
5
Old or non-Agilent lamp.
Exchange the UV lamp.
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