Internal Gas Supply - Thermo Scientific TSQ Altis Hardware Manual

Internal Gas Supply

Thermo Scientific
The inlet gas hardware controls the flow of gases into the MS.
• Argon Gas Valves—The data system controls the valves that regulate the argon gas
pressure. You can set the collision gas pressure (CID gas) in the Tune application.
Argon gas enters the left side of the MS through a 1/8 in. port. The valves for the collision
gas control the flow of argon gas into and out of the Q2 collision cell. When activated, a
solenoid valve shuts off the argon gas flow to the cell.
• Nitrogen Gas Valves—The data system controls the valves that regulate the nitrogen
pressure. You can set the gas flow rates in the Ion Source pane of the Tune application.
Dry nitrogen gas enters the left side of the MS through a 1/4 in. port. The valves for the
sheath, auxiliary, and sweep gases control the flow of dry nitrogen gas into the API source
(Figure 5).
– Sheath gas is the inner-coaxial nitrogen gas that helps nebulize the sample solution
into a fine mist as the solution exits the API spray insert nozzle.
– Auxiliary gas is the outer-coaxial nitrogen gas that helps the sheath gas to nebulize
and evaporate the sample solution by focusing the vapor plume and lowering the
humidity in the API source.
– Sweep gas is the off-axis nitrogen gas that flows out from behind the optional ion
sweep cone to aid in solvent declustering and adduct reduction. The optional ion
sweep cone has an inlet for the sweep gas.
• Vent Valve—The solenoid-operated vent valve vents the
air. The vent valve is closed when the solenoid is energized. The vents opens when the MS
no longer receives external power, as with a power failure or when you turn off the main
power switch.
vacuum manifold
TSQ Altis, Quantis, and Fortis Hardware Manual
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with filtered
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