Waters Xevo TQD, Operator'S, Overview And Maintenance Manual

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4-28 Maintenance Procedures
Cleaning the sampling cone assembly
You can remove the sampling cone assembly (the sample cone, O-ring, and
cone gas nozzle) for cleaning without venting the instrument.
Removing the sampling cone assembly from the source
Required material
Chemical-resistant, powder-free gloves
To remove the sampling cone assembly from the source
1. Close the source isolation valve (see page 4-16 ).
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.