Maintaining The Esi Probe; Replacing The Esi Probe Tip And Gasket - Waters Xevo G2-XS QTof Overview And Maintenance Manual

Tip:
If contamination is present, use 1:1 methanol/water, applied to a lint-free cloth, to
carefully clean the grooves.
2. Fit the O-rings (new ones, if you disposed of the old O-rings) to the PEEK ion block
support.
Tip:
To fit an O-ring in its groove, start fitting the O-ring at the notch in the groove, and
then progressively work the ring into the groove, in either direction from the notch.
3. Fit the PEEK ion block support to the instrument's housing.
4. Use the 3-mm hex wrench to fit and tighten the four PEEK ion block support securing
screws.
5. Fit the ion block assembly to the PEEK ion block support (see
assembly to the source assembly (Page
6. Fit the source enclosure to the instrument (see
instrument (Page

7.17 Maintaining the ESI probe

Maintaining the ESI probe involves replacing the following components of the probe when
required.
Note:
To maintain a tool-free ESI probe, see the Waters Tool-Free Probe Maintenance Guide
Supplement (715005492).
Table 7–2: ESI probe consumables
Component
1
2
3
4
5
6
If the ESI probe tip is damaged or blocked, follow the procedure
gasket (Page 146).
If replacing the ESI probe tip and gasket fails to increase sensitivity, or if a performance issue can
be traced to capillary blockage, contamination, or damage, follow the procedure
ESI probe capillary (Page

7.17.1 Replacing the ESI probe tip and gasket

Replace the probe tip if it becomes blocked or damaged.
92)).
Name
ESI probe tip
Nickel gasket
PTFE liner tube
Ferrule
Conductive sleeve
Capillary
149).
March 31, 2021, 715004496 Ver. 04 (previously released as Rev. D)
130)).
Fitting the source enclosure to the
Page 146
Fitting the ion block
Part number
700004207
700004208
700000640
700000343
700000969
700004206
Replacing the probe tip and
Replacing the