Nitrogen (N2) gas failure error on a Xevo Source mass spectrometer - WKB90328

SYMPTOMS

• Nitrogen (N2) gas failure error.
• Output pressure from N2 generator low.

ENVIRONMENT

• 3100 Mass Detector
• ACQUITY SQD system
• SQ Detector
• ACQUITY TQD system
• TQ Detector
• SQ Detector 2
• Xevo TQ MS
• Xevo TQD
• Xevo TQ-S
• Xevo TQ-S cronos
• Xevo TQ-S micro
• Xevo TQ-XS
• Synapt G2-Si

CAUSE

Nitrogen supplied to the instrument is below the required pressure of 100 PSI.

FIX or WORKAROUND

1. Confirm the Nitrogen generator output is 100psi, adjust if needed.
2. If the error still exists, set all gas flows to the maxiumum and recheck pressure. 
   1. If the output pressure drops the nitrogen generator likely needs service.
   2. If the output pressure does not drop, the MS Nitrogen inlet valve may need to be adjusted.  See respective technical reference for instructions.

ADDITIONAL INFORMATION