46 Troubleshooting and Maintenance Manual
2 General Troubleshooting
There is no emission current
• Check tune file to be certain that emission current is not = 0
• Filament is not connected properly; try the other filament
• Filament has failed; try the other filament
• MS electronics are not working correctly
There is not enough signal to begin tune
• Corrupted tune file
• Poor mass axis calibration
• Width gain or offset is too high
• Calibration vial(s) empty or almost empty
• Excessive pressure in the analyzer chamber
• Air leak
• Electron multiplier voltage is too low
• Signal cable is not connected
• Electrical leads to the detector are not connected correctly
• Electrical leads to the ion source are not connected correctly
• Filament shorted to the source body
• Collision cell gas flow
• Collision cell voltages
To Next Page
Loading...
