Waters Xevo G2 QTof, Operator'S, Overview And Maintenance Manual, Page: 105 / 248

Cleaning the sampling cone assembly 5-29
Cleaning the sampling cone assembly
You can remove the sampling cone assembly (comprising the sample cone,
O-ring, and cone gas nozzle) for cleaning without venting the instrument.
Removing the sampling cone assembly from the source
Required materials
Chemical-resistant, powder-free gloves
To remove the sampling cone assembly from the source:
1. Close the source isolation valve (see page 5-14 ).
2. Grasp the cone gas nozzle handle, and use it to rotate the sampling cone
assembly 90 degrees, moving the handle from the vertical to horizontal
position.
Warning:
The source components can be contaminated with
biohazardous and/or toxic materials. Always wear
chemical-resistant, powder-free gloves while performing this
procedure.
Warning:
To avoid electric shock, ensure that the instrument is in
Standby mode before commencing this procedure.
Warning:
To avoid puncture wounds, take great care while working with
the source enclosure open if one or both of these conditions apply:
• An ESI probe is fitted (the probe tip is sharp).
• A corona pin is fitted (the pin tip is sharp).
Warning:
The source can be hot. To avoid burn injuries, take great care
while working with the source enclosure open.