What is the aperture disc dimension on a QDa detector? - WKB2319

ENVIRONMENT

• ACQUITY QDa Mass Detector

ANSWER

• Standard (S) mode uses a 0.09-mm aperture disc, sold as Aperture Disc Assembly, 0.09 mm
  • Part number 700009769 for the "APERTURE DISK ASSEMBLY S"
• Performance (P) mode uses a 0.2-mm aperture disc, sold as Aperture Disc Assembly, 0.2 mm
  • Part number 700009768 for the "APERTURE DISK ASSEMBLY P"

Note: It is not recommended to clean the aperture disk if blocked or dirty. It should be replaced.

ADDITIONAL INFORMATION

• The size of the aperture is dependent on the type of vacuum pump used with the installed configuration.
  • Standard QDa uses an integrated diaphragm pump powered by the QDa MS Detector.
  • Performance QDa uses an external rotary pump which sits on the floor with its own power source.