6
Maintenance
Disassembling and Reassembling the TSQ Quantum XLS Ion Source Completely
Thermo Scientific
TSQ Quantum XLS and TSQ Quantum GC User Guide
109
8. Remove the EI/CI Source PCB.
a. Place the ion source on a clean surface with the cartridge heaters down and the EI/CI
Source PCB up.
b. Press down on the ion source block to separate it from the EI/CI Source PCB.
9. Remove the retainer clip that secures the filament and centering ring to the ion source
block.
10. Remove the filament and centering ring from the ion source block.
11. Clean the ion source block and lenses. See
“Cleaning Stainless Steel Parts”
.
Clean non-stainless steel parts as described in
“Cleaning Non-Stainless Steel or Hybrid
Y
To reassemble the ion source
1. Reinstall the EI/CI Source PCB and filament.
a. Align and insert the cartridge heaters and temperature sensor on the EI/CI Source
PCB with the corresponding holes in the ion source block.
b. Reinstall the three base studs.
c.
Align the filament leads with the EI/CI Source PCB connectors and gently press the
leads into the connectors. Normally, there is a small gap (about 0.016 in.) between
the filament and the connectors. The gap allows the ceramic centering ring to
properly position and align the electron lens hole with the ion volume.
2. Press the heater ring and lens assemblies onto the ion source block.
3. Use the retainer clip and threaded standoff to secure the lens assembly to the ion source.
4. Reinstall the ion source into the vacuum manifold. See
.
5. Restart the system. See
“Starting Up the System after a Complete Shutdown”
CAUTION
Do not pull the EI/CI Source PCB out of the ion source block. This
might damage the EI/CI Source PCB.
IMPORTANT
Ensure that the temperature sensor is seated snugly.
IMPORTANT
For accurate temperature readings of the heater block, fully screw the
threaded standoff into the ion source to ensure contact between the temperature
sensor with the heater block.