INFICON Explorer Portable Gas Chromatograph - Manual (Page 247)

Explorer Operator Manual
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4. Ensuring that you do not touch the new septum with your fingers, place the
new septum, Teflon face down, in the injection port.
Tweezers should be used.
NOTE: Touching the septum with your fingers will lead to contamination of the system.
5. Position the septum in the injection port with the syringe needle and then
carefully screw the black retainer back in place.
Finger-tighten the retainer.
NOTE: The septum retainer must not be over tightened. This will cause unusual resistance
to needle penetration and may result in needle blockage.
6. The retainer should be tightened so that the septum is seated against the lower
half of the injection port assembly.
Coring of the septum can be reduced by using sidebore syringe needles.
Cleaning the Injection Port Assembly
CAUTION
Do not remove the injection port assembly. Removal opens Explorer’s
analytical engine to the environment.