Assembling The Source Ion Block Assembly - Waters Xevo TQ-S Operator's, Overview And Maintenance Manual

Assembling the source ion block assembly

Required materials
• Chemical-resistant, powder-free gloves
• Combined 2.5-mm Allen wrench and cone extraction tool
• Isopropyl alcohol in small container
• 1:1 methanol/water
• Lint-free cloth
Caution:
• To avoid recontaminating the ion block assembly, wear clean,
chemical-resistant, powder-free gloves during this procedure.
• To avoid damaging the heater cartridge assembly wires, do not bend
or twist them when fitting the assembly and ceramic heater
mounting block to the ion block.
To assemble the ion block assembly:
1. Carefully fit the PEEK terminal block and ceramic heater mounting
block, complete with heater cartridge assembly, to the ion block.
2. Use the combined 2.5-mm Allen wrench and cone extraction tool to
tighten the captive PEEK terminal block securing screw.
3. Ensure that the grooves for the cover seal, cone gas O-ring, and isolation
valve O-ring are free from dirt and debris.
If contamination is present, use 1:1 methanol/water, applied to a
Tip:
lint-free cloth, to carefully clean the grooves.
4. Fit the cover seal (a new one if you disposed of the old seal) to the ion
block, ensuring that it is correctly seated.
5. Fit the cone gas O-ring (a new one if you disposed of the old O-ring) to
the ion block, ensuring that it is correctly seated.
6. Fit the O-ring to the isolation valve.
If you use a new O-ring, first soak it for several minutes in isopropyl
Tip:
alcohol, so that it better fits the isolation valve.
7. Fit the isolation valve to the ion block assembly, so that it is in the
closed position.
Cleaning the ion block assembly
February 28, 2014, 715002212 Rev. C 149