Reconnecting The Electron Multiplier Cables - Thermo Scientific TSQ 9000 Hardware Manual

1
Performing Routine Maintenance
Replacing the Electron Multiplier
86 TSQ 9000 Hardware Manual
Figure 77. Reconnecting the Electron Multiplier Cables
Electrometer
Board Cable
24. Reattach the top cover panel and tighten the screw holding the top cover panel in place.
25. Close the front door of the instrument.
26. Twist the vent valve clockwise to close the valve. Be careful not to pinch the o-ring.
27. Reinsert the column to the proper length and tighten the transfer line nut. See
a Column" on page 12
28. If you are using hydrogen, replace the front panel screw.
29. Replace the ion source cartridge. See
for more information.
30. Replace all hydrogen safety screws.
31. Power-on the TSQ 9000 mass spectrometer.
32. 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 left side or go to the back of the
instrument and flip up the power switch.
for more information.
"Reinserting the Ion Source Cartridge"
Large
Feedthrough
Cables
Electrometer
Shield
Electron Multiplier
on
Thermo Scientific
"Replacing
page 61