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Probe temperature fails to settle with QDa detector - WKB28920

Article number: 28920

SYMPTOMS

  • Probe temperature fails to settle when the instrument is in Operate mode
  • N2 supply pressure is 6.5 bar

ENVIRONMENT

  • ACQUITY QDa Detector

CAUSE

Precipitates in the ESI enclosure area where the capillary probe penetrates

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FIX or WORKAROUND

  1. Shut down the QDa.
  2. Remove the ESI enclosure.
  3. Clean the ESI enclosure of precipitates.
  4. Install the ESI enclosure.
  5. Power-on the QDa detector; wait for two green LEDs, power and status
  6. Open MassLynx or Empower.
  7. Verify that the probe temperature is okay.

ADDITIONAL INFORMATION

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