Waters Xevo G2-XS QTof Overview And Maintenance Manual page 287

Nitrogen exhaust-trap bottle:
From
instrument
exhaust
connection
Cap
Nitrogen
exhaust-trap
bottle
To avoid gas leaks, use the sharp knife to cut the PTFE
Notice:
tubing squarely (that is, perpendicular to its horizontal axis).
2. Cut a length of 4-mm tubing long enough to connect the instrument to
the nitrogen exhaust-trap bottle.
3. Connect one end of the tubing to the pilot valve port on the instrument's
rear panel.
4. Connect the free end of the tubing to the pilot valve port on the nitrogen
exhaust-trap bottle.
5. Cut a length of 12-mm tubing long enough to connect the instrument to
the nitrogen exhaust-trap bottle.
Connecting the nitrogen exhaust line
To laboratory
exhaust port
From instrument
pilot valve port
April 2, 2015, 715004496 Rev. B 287