Thermo Scientific ISQ 7000 Hardware Manual page 134

1
Performing Routine Maintenance
Replacing the Electron Multiplier
106 ISQ 7000 Hardware Manual
Figure 103. Reconnecting the Electron Multiplier Cables
Electrometer
Board Cable
25. Reattach the top cover panel and tighten the screw holding the top cover panel in place.
26. Close the front door of the instrument.
27. Twist the vent valve clockwise to close the valve. Be sure not to pinch the vent valve
o-ring.
28. If you are using hydrogen as a carrier gas, replace the front panel screw.
29. Replace all remaining hydrogen safety screws if you are using hydrogen.
30. Power on the ISQ 7000 mass spectrometer.
31. If the GC is powered off, power it on and make sure vacuum compensation is on for the
carrier gas flowing into the mass spectrometer.
WARNING FIRE HAZARD: If you are using hydrogen, do NOT reach over the top of the
instrument to power it on. Instead, reach around the right side or go to the back of the
instrument and flip up the power switch.
AVERTISSEMENT RISQUE D'INCENDIE : si vous utilisez de l'hydrogène, ne passez PAS la
main par-dessus l'instrument pour le mettre sous tension. Passez-la plutôt par le côté droit
ou placez-vous derrière l'instrument et activez l'interrupteur d'alimentation.
32. On the ISQ Dashboard click Air & Water/Tune.
33. ISQ 7000 Manual Tune opens. Click Reset Multiplier.
34. Close ISQ 7000 Manual Tune.
Electron Multiplier
Plate
Thermo Scientific