Waters Xevo G2 QTof Operator's, Overview And Maintenance Manual page 48

ESI probe, mounted on the LockSpray source enclosure:
ESI probe cable
High voltage connector
Source window
Caution:
ring.
4. Tighten the probe locking ring to secure the probe in place.
An automatic pressure test is performed when the probe is correctly
Tip:
seated in position.
5. Connect the ESI probe's cable to the high voltage connector.
6. Open the access door to the IntelliStart Fluidics system (see the figure
on page
Warning:
to connect the diverter valve to the ESI probe; use the PEEK
tubing supplied with the instrument.
7. Using a long "finger-tight" fitting, connect 0.004-inch ID (or greater)
tubing, from port 2 (the top port) of the diverter valve to the ESI probe,
where you use a PEEK, "finger-tight" nut and ferrule to connect to the
union.
3-4 Configuring the LockSpray Source
To avoid nitrogen leakage, fully tighten the probe locking
1-12).
To avoid electric shock, do not use stainless steel tubing
Vernier probe adjuster
ESI probe
TP03128
Probe locking ring
Vertical probe
adjuster
Source enclosure
release