112 Maintaining Your GC
7 Maintaining the COC Inlet
To Change a Septum on the COC Inlet
1 Gather the following:
• Replacement septum. (See “Consumables and Parts for
the COC Inlet” on page 102.)
• Tweezers
• A thin wire (0.2- inch diameter) for removing septum
from inlet
• Lint- free gloves
2 Load the inlet maintenance method and wait for the GC
to become ready.
3 Replace the septum.
• If you are using a septum nut, grasp the knurling and
unscrew. Remove the old septum with tweezers. Use
tweezers to install a new septum. Push the septum into
the septum nut until properly seated. Firmly tighten
the nut.
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.
Wear clean, lint-free gloves to prevent contamination of parts with
dirt and skin oils.
For 250/320-µm
automated injections
For 530-µm automated
injections
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