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QDa is not communicating in MassLynx; instrument not present - WKB17931

Article number: 17931

SYMPTOMS

  • "Instrument not present" warning in MassLynx
  • No control over the QDa

ENVIRONMENT

  • MassLynx
  • ACQUITY QDa Mass Detector

CAUSE

Improper or too rapid boot sequence

FIX or WORKAROUND

  1. Close out of MassLynx.
  2. Power-off the QDa.
  3. Reboot the PC and log in to Windows, but do not start MassLynx.
    • Allow the loading of all required services and processes to complete.
    • Power-on all other components, starting with the 515/PCM or makeup pump.
  4. Power-on the QDa and leave it for 15 minutes to go through the boot sequence.
    • Allow time for the detector to perform startup checks properly and for the MS to pump down.
  5. Start MassLynx and verify that the QDa connects.

ADDITIONAL INFORMATION

 

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