To Operate the Reagent Gas Flow Control Module
After the system has been switched from EI to CI mode, or vented for any other reason,
C A U T I O N
the MS must be baked out for at least 2 hours before tuning.
Continuing with CI autotune if the MS has an air leak or large amounts of water will
C A U T I O N
result in severe ion source contamination. If this happens, you need to vent the MSD
and clean the ion source.
Procedure
1 In the Manual Tune dialog, click the CI Gas tab to access the parameter
Figure 41
5977B Series MSD Operating Manual
settings for controlling the CI gas flow. (See
Manual tune CI tab
Operating in CI Mode
Figure
41.)
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