176 Agilent 1260 Infinity DAD and MWD User Manual
9 Test Functions
Holmium Oxide Test
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 183) and repeat the test.
3 Dirty or contaminated flow cell.
Run the cell test (see “Cell Test” on page 179). 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 170).
5 Old or non-Agilent lamp.
Exchange the UV lamp.
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