Removing The Vacuum Manifold's Top Cover Plate; Figure 70. Electrical Connections To The Top Cover Plate Of The Vacuum Manifold - Thermo Scientific LTQ Series Hardware Manual

Removing the Vacuum Manifold's Top Cover Plate

Thermo Scientific
To access the MP0 and MP1 ion guides, mass analyzer, and ion detection system, remove the
top cover plate of the vacuum manifold. The top cover is held in place by gravity and by the
pressure differential between vacuum and atmosphere. Six cables connect to the vacuum
manifold's top cover plate.
 To remove the vacuum manifold's top cover plate
1. Disconnect the two electron multiplier HV coaxial cables at the back of the plate
(Figure 70).

Figure 70. Electrical connections to the top cover plate of the vacuum manifold

Electron multiplier HV cables
2. Use a small slotted screwdriver to loosen the screws that secure the electrometer cable, and
then disconnect the cable.
3. Disconnect the three cables connected to the top cover PCB.
5
Maintenance
MP0 and MP1 Ion Guides Maintenance
Electrometer
cable
Top cover
PCB cables
Handle (front)
LTQ Series Hardware Manual 101