Thermo Scientific ISQ 7000 Hardware Manual page 168

2
Troubleshooting
Investigating Sensitivity Issues
Possible Remedies
Remove the ion volume and check if the ion burn is centered around the small electron entrance hole. Be sure the filament is properly
inserted into the connector. Carefully bend the filament wire to better align it with the ion volume.
While running the instrument, you can push on the ion volume with the source exchange tool. Be sure to monitor the pressure to ensure
that you get a good seal around the tool. Otherwise, you may damage the filament. An increase in signal for the calibration gas as you
push on the ion volume usually indicates that the filament is not aligned properly.
140 ISQ 7000 Hardware Manual Thermo Scientific