5
Changing Ionization Modes
Installing the Ion Volume
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TSQ Quantum XLS Series User Guide
Thermo Scientific
13. Remove the guide bar by rotating it 90° counterclockwise and sliding it out of the entry
housing.
14. Replace the inlet valve plug. Orient the plug to indicate whether an EI or CI ion volume
is installed.
15. Tighten the inlet valve knob clockwise to create a leak-tight seal.
16. (Optional) To prevent the inlet valve from being opened accidentally, pull free and
remove the inlet valve lever.