"Wavelength verification failure" on ACQUITY PDA - WKB60814

SYMPTOMS

• "Wavelength verification failure" error observed on startup in console
• No air in flow cell per wkb3130

ENVIRONMENT

• ACQUITY UPLC PDA Detector
• ACQUITY UPLC PDA eλ Detector
• 2998 Photodiode Array Detector
• ACQUITY Premier PDA

CAUSE

Dirty flow cell

FIX or WORKAROUND

First check the detector using a shunt flow cell .

1. Clean the flow cell per wkb520
2. If cleaning did not help -> replace flow cell

ADDITIONAL INFORMATION