Cleaning The Ion Source Cartridge; Removing The Ion Source Cartridge - Thermo Scientific ISQ 7000 Hardware Manual

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Performing Routine Maintenance

Cleaning the Ion Source Cartridge

Cleaning the Ion Source Cartridge

Removing the Ion Source Cartridge

Removing the Extractabrite Ion Source Cartridge from the ISQ 7000 Mass Spectrometer with a VPI
48 ISQ 7000 Hardware Manual
The ion source should be cleaned according to your laboratory's schedule, but you should also
clean it if you notice deterioration in the performance of your instrument. The frequency of
cleaning is determined by the number of samples you run, as well as the types of samples you
run. Since the ion source is the component closest to the sample, it needs to be cleaned more
often.
The goal of cleaning the ion source cartridge is to remove any contamination from its
surfaces, which restores its electrostatic properties. You can clean the ion source cartridge with
an abrasive, sonic, or electropolishing method, but we recommend using abrasives.
Note See Ion Source Cartridge
any of its components.
The steps for removing the ion source cartridge are different depending on whether or not
your ISQ 7000 mass spectrometer has a vacuum probe interlock (VPI). Depending on your
instrument, refer to either
7000 Mass Spectrometer with a VPI"
the ISQ 7000 Mass Spectrometer with no VPI"
 To remove the ion source cartridge from the ISQ 7000 Mass Spectrometer with a VPI
1. Twist off the round vacuum interlock knob located on the interior front panel and set it
aside. As you can see, the knob covers access to a long tunnel that goes into the
instrument. This tunnel is called the vacuum interlock.
Figure 31. Removing the Vacuum Interlock Knob
for information about replacing the ion source cartridge or
"Removing the Extractabrite Ion Source Cartridge from the ISQ
on page 48 or"Removing the Ion Source Cartridge from
on page 60.
Vacuum Interlock
Knob
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