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Transpector XPR 3+ Operating Manual
Do not, under any circumstances, remove the
quadrupole assembly from the ion source base plate.
Doing so will require factory realignment.
Use finger cots or talc free latex gloves when changing
the filament assembly. Do not use nylon gloves when
handling a Transpector XPR 3+ Sensor.
The Total Pressure circuit must be recalibrated after
changing the filament.
Neither the filament assembly or the ion source can be
cleaned. When dirty, they must be replaced.
1 Install the filament so that the face of the repeller is parallel to the face of the
anode and the filament is approximately centered to the two mounting screws
(per steps 2 and 3 below). See Figure 7-3.
Figure 7-3 Filament assembly
2 Align the holes in the filament blocks with those on the base plate.
3 Place the lock washers on the screws, and then insert the screws through the
filament assembly and into the holes in the ion source base plate. Alternately
tighten the screws until the screw heads just touch the lock washers. See
Figure 7-4.
NOTE: Both screws must have lock washers to maintain mechanical
connection and therefore electrical connection from the traces to the
filament assembly.
Faces to
center of ion
source plate
Repeller
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