Waters Xevo TQD Overview And Maintenance Manual page 97

3. Close the source isolation valve by moving its handle counterclockwise,
to the vertical position.
Warning:
toxic materials, and to avoid spreading contamination to
uncontaminated surfaces, wear clean, chemical-resistant,
powder-free gloves when working with the source components.
Warning:
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).
To open the source isolation valve after completing a maintenance
procedure:
1. Open the source isolation valve by moving its handle clockwise to the
horizontal position.
To avoid personal contamination with biohazards or
To avoid puncture wounds, take great care while
March 14, 2014, 715004387 Rev. B
Operating the source isolation valve
Isolation valve handle
in closed position
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