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Stop Flow Input Activated error triggered on Quaternary Solvent Manager when starting a sample set in Empower - WKB256571

Article number: 256571

SYMPTOMS

  • Method is created to acquire only PDA data, no QDa data
  • QDa is on but set to Standby
  • Cannot start the flow; QSM gives a Stop Flow Input Activated error
  • QDa is put into Operate
  • QSM flow starts at the correct flow rate
  • Sample set starts, QSM immediately goes to Stop Flow Input Activated

ENVIRONMENT

  • Empower
  • ACQUITY Arc system
  • ACQUITY QDa Mass Detector

CAUSE

QDa parameters in the Instrument Method are set for the QDa to be in Standby.

FIX or WORKAROUND

Modify the Instrument method so that the QDa remains in Operate.

ADDITIONAL INFORMATION

The QDa detector must be in Operate for the API gas to remain on. If the Instrument Method has the QDa set to Standby, the API gas will turn off as soon as the method is downloaded to the instrument, thus triggering the Stop Flow Input signal.

 

id256571, EMP2LIC, EMP2OPT, EMP2SW, EMP3GC, EMP3LIC, EMP3OPT, EMP3SW, EMPGC, EMPGPC, EMPLIC, EMPOWER2, EMPOWER3, EMPSW, QDA, SUP, UPAQSM, UPARBQSM, UPARBSMFTN, UPARCH30, UPARHQSM, UPARQSM, UPARSMFTN, UPPDAARCB

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