Analyzers and Collision Cell 7
Troubleshooting and Maintenance Manual 153
Filament care
Like the filaments in incandescent light bulbs, the ion source filaments will
eventually burn out. Certain practices will reduce the chance of early failure:
• Use the ion vacuum gauge to verify that the system has an adequate vacuum
before turning on the analyzer, especially after any maintenance was
performed.
• When setting up data acquisition parameters, set the solvent delay so that
the analyzer will not turn on while the solvent peak is eluting.
• When the software prompts Override solvent delay? at the beginning of a run,
always select NO.
• Higher emission current will reduce filament life.
• Higher electron energy will reduce filament life.
• Leaving the filament on for short times (<
1 minute) during data acquisition
will reduce filament life.
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