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Waters

No beam in negative ion mode on Xevo G2-XS in MassLynx - WKB16473

Article number: 16473

SYMPTOMS

  • No ions observed in negative ion mode for either resolution mode
  • Detector gain has not run for a long time in negative ion mode

ENVIRONMENT

  • Xevo G2
  • Xevo G2-S
  • Xevo G2-XS
  • SYNAPT G2
  • SYNAPT G2-S
  • SYNAPT G2-Si
  • MassLynx

CAUSE

The detector voltage is too low to see a beam

FIX or WORKAROUND

  1. Manually increase the detector voltage in negative ion mode by going to the tune page dropdown menu > setup > system view. The password is access.
  2. Go to System > Auto Values, and increase the detector voltage by 50 to 100 V until the beam is visible.

ADDITIONAL INFORMATION

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