92 Operation Manual
5 Using the Removable Ion Source
The Removable Ion Source
The Removable Ion Source
The removable ion source (RIS) is a feature of the Agilent 7200
Q-TOF GC/MS that allows changing of the ion source without
venting the instrument through the use of the RIS probe
extractor tool. The source must be removed from the MS
periodically for routine cleaning and maintenance, or for
changing ionization modes, and the new RIS minimizes the
downtime necessary to complete these tasks. This process is
guided by the MassHunter Workstation software, which
performs the purging, valve operation, and pump down steps
automatically.
The RIS probe extraction tool consists of a RIS bayonet that
attaches to the source, a handle for moving the source in and
out of the instrument, and a cooling chamber for cooling the
source prior to removal (Figure 24). The entire process is
guided by the MassHunter Workstation Software.
The RIS cooling chamber is attached to the instrument to
provide a place to vent and purge the source with nitrogen
during source changing. An automatic gate valve closes off the
cooling chamber from the instrument to eliminate the need for
venting the instrument during this process. Only the small RIS
cooling chamber is vented.
CAUTION
The software and firmware are revised periodically. If the steps in
these procedures do not match your MassHunter Workstation
software, refer to the manuals and online help supplied with the
software for more information.
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