Nitrogen Gas Valves - Stellar MS - Stellar Mass Spectrometer Operating Manual - Inlet Gas Supply Hardware - Vacuum System and Inlet Gases - Main Components - Hardware Components - Nitrogen Gas Valves - Stellar MS

The valves for the sheath, auxiliary, and sweep gases control the flow of dry nitrogen gas into the API source. You can set the gas flow rates from the Ion Source pane in the Tune application.

HP nitrogen gas and UHP nitrogen gas enter the left side of the MS through two ports:

• 1/4 in. port for the HP nitrogen gas, which functions as the sheath, auxiliary, and sweep gases.
• 1/8 in. port for the UHP nitrogen gas, which functions as both the collision gas and venting gas.

For information about the nitrogen gas, see Sheath Gas, Auxiliary gas, and Sweep gas.