Waters Xevo G2-XS QTof Overview And Maintenance Manual page 60

3 Configuring the LockSpray Source
8. Secure the union with a PEEK finger-tight nut and ferrule.
Recommendation:
for sample flow rates ≤1.2 mL/min; use 0.005-inch ID tubing for sample
flow rates >1.2 mL/min.
Requirements:
• If you are replacing the tubing supplied with the instrument, you
must minimize the length of the tube connecting the diverter valve
to the ESI probe. Doing so minimizes delays and dispersion.
• When cutting the tubing to length, cut it squarely (that is,
perpendicular to its horizontal axis).
Long finger-tight fitting and PEEK, finger-tight nut and ferrule:
Warning:
fittings at the top of the probe.
9. Close the access door to the fluidics valves.
60 April 2, 2015, 715004496 Rev. B
Diverter valve
Tubing connection
To reduce peak broadening, use 0.004-inch ID tubing
To avoid electric shock, only use natural (beige) PEEK
ESI probe
Probe adjuster
assembly