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Waters

"Blocked Aperture" error in UNIFI for RDa - WKB53240

Article number: 53240

SYMPTOMS

  • Error in UNIFI: "Blocked Aperture"
  • Backing pressure readback is lower than expected at 1.0 mbar

ENVIRONMENT

  • RDa detector

CAUSE

Blocked aperture

FIX or WORKAROUND

  1. Sonicate the aperture.
  2. Reinstall the aperture and confirm good backing pressure (usually 1.5–2.2 mbar).

ADDITIONAL INFORMATION

 

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