PerkinElmer Clarus SQ 8 MS Series, Hardware Manual

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Maintenance
73
Leak Checking
Checking for leaks is actually checking the integrity of the vacuum system. You
observe masses 4 (helium), 18 (water), 28 (nitrogen), and 32 (oxygen).
To leak-check the system, follow this procedure:
1.
Ensure that all connections are made to the mass spectrometer.
2.
Set the GC split flow to 50 mL/min by pressing the PSSI injector icon on the
Clarus GC touch screen. On the next screen, press the split flow setpoint and
use the up and down arrow or keypad
buttons to set the split flow
to 50mL. For example, if the capillary injector is in position 1 and you selected
split flow in the PPC configuration software, the following screen is displayed.
The total flow (split vent + septum purge + column) is displayed in the lower
left of the screen. The split vent flow setpoint is displayed in the setpoint box
in the lower right.
3.
Start the TurboMass software by clicking on the Windows
Start
button at the
bottom left of the screen and select
TurboMass
under the
Programs/TurboMass/TurboMass path, or double-click on the TurboMass icon if
it is on your Windows desktop.
The initial TurboMass window is displayed.