9 Maintaining the PTV Inlet
To Replace the Filter in the Split Vent Trap for the PTV Inlet
160 Maintaining Your GC
To Replace the Filter in the Split Vent Trap for the
PTV Inlet
1 Gather the following:
• New split vent filter cartridge, see “Consumables and Parts for the Programmable
Temperature Vaporization Inlet” on page 144.
2 Launch the GC maintenance wizard: Maintenance > Inlets, select the PTV inlet, then select
Perform Maintenance > Replace Split Vent Trap > Start Maintenance. The wizard will walk
through the steps needed to replace the filter (those same steps are repeated below).
Be careful! The oven and/or inlet may be hot enough to cause burns. If either is hot, wear
heat-resistant gloves to protect your hands.
The split vent trap may contain residual amounts of any samples or other chemicals you
have injected into the GC. Follow your company’s safety procedures for handling these types
of substances while replacing the trap filter cartridge.
3 Remove the “To Remove the Pneumatics Cover” on page 19 (top, back of GC).
4 Completely loosen the knurled nut that secures the split vent trap in place as shown in
Figure 34.
Figure 34. Loosen knurled nut
5 Slide the trap assembly back from the guided mounting bracket and tilt up to expose the
filter as shown in Figure 35.
Knurled nut secured
Knurled nut loosened
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