QDa missing from the console - WKB5502

SYMPTOMS

• The UPLC is present in the console, but the QDa is missing. 

ENVIRONMENT

• MassLynx 4.1
• ACQUITY QDa Mass Detector

CAUSE

Not waiting long enough after powering-on the QDa for the QDa to run through its diagnostics before starting MassLynx

FIX or WORKAROUND

1. Close all MassLynx related windows - the inlet method editor, the MS console, and the main MassLynx window
2. Power-off the QDa (power button on the top left of the front panel)
3. Power-off the MassLynx PC
4. Wait at least one minute
5. Power-on the PC and log in
6. Power-on the QDa
7. Wait at least 10 minutes
8. Confirm that the left status light is green and the right status light is off on the front panel, top left corner of the QDa
9. If not, wait longer
10. If the status lights are correct, then open MassLynx. It should say instrument present at the bottom of the MassLynx window
11. Open the ms console and observe all of the ACQUITY components and the QDa

ADDITIONAL INFORMATION