Thermo Scientific ISQ 7000 Hardware Manual page 88

1
Performing Routine Maintenance
Cleaning the Ion Source Cartridge
Removing the Ion Source Cartridge from the ISQ 7000 Mass Spectrometer with no VPI
60 ISQ 7000 Hardware Manual
 To remove the ion source cartridge from the ISQ 7000 mass spectrometer with no VPI
1. Click Shut Down on the ISQ 7000 Dashboard or on the ISQ status page within the
instrument software.
2. Click Yes to continue the shutdown process. The high voltages, heaters, and
turbomolecular pump power off. Once the turbomolecular pump reaches 50% speed, or
five minutes elapses, the foreline pump powers off and you may vent the system.
Note The amber vacuum light on the front of the instrument starts blinking rapidly,
indicating the mechanical pump has powered off after a five minute period with the
turbomolecular pump off (such as when the instrument is shut down), or due to a
sustained vacuum fault lasting five minutes. When the turbomolecular pump spins down
below 50% speed due to the shut down process, the vacuum light turns off.
3. Reach around the right side to the back of the instrument and push down on the power
switch to power-off the instrument.
4. Open the front door of the mass spectrometer.
5. Open the front door of the instrument.
6. Twist the vent valve knob one and a half times in a counter-clockwise direction to open
the vent.
Figure 47. Venting the Mass Spectrometer
7. Wait five minutes for venting to complete.
Vent Valve Knob
Thermo Scientific