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Waters

QDa turbo power too low- WKB61163

Article number: 61163

SYMPTOMS

  • Turbo power too low

ENVIRONMENT

  • ACQUITY QDa Mass Detector

CAUSE

(partially) Blocked aperture disk

FIX or WORKAROUND

Replace the aperture disk.

ADDITIONAL INFORMATION

The QDa does not have a vacuum gauge; the vacuum is monitored from the amount of power that the turbo pump needs to maintain its operating speed. The software has upper and lower limits to alert the user if there is a problem. If there is a leak, more power is needed. If the vacuum is too good, the need for power is lower.

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