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Agilent Technologies Agilent 7890 Series User Manual

Agilent Technologies Agilent 7890 Series
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Maintaining the PTV Inlet 9
Maintaining Your GC 165
To Clean the Septum Seat in the Septum Head Assembly of the PTV Inlet
1 Gather the following:
Replacement septum (See “Consumables and Parts for
the PTV Inleton page 152.)
5/8- inch wrench
Tweezers
Compressed, filtered, dry air or nitrogen
Lint- free gloves
2 Load the inlet maintenance method and wait for the GC
to become ready.
3 Remove the septum retainer nut or Merlin cap. If the
septum head begins to turn during removal, support it
manually while removing the cap.
4 Unscrew the septum head assembly from the inlet and
move it up and away from the inlet.
5 Use tweezers to remove the septum or Merlin Microseal
from the retainer nut. Do not gouge or scratch the
interior of the septum head.
6 Scrub the residue from the retainer nut and septum
holder with a small piece of rolled- up steel wool and
tweezers. Do not do this over the inlet.
7 Use compressed air or nitrogen to blow away the pieces
of steel wool and septum.
8 Replace the septum head assembly on the inlet.
Finger- tighten the septum head and then tighten an
additional 1/2 turn with a wrench.
9 Firmly press the new septum or Merlin Microseal into the
fitting. (See “To Change the Septum on the PTV Inlet” on
page 163.)
WARNING
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.
CAUTION
Wear clean, lint-free gloves to prevent contamination of parts with
dirt and skin oils.

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Agilent Technologies Agilent 7890 Series Specifications

General IconGeneral
BrandAgilent Technologies
ModelAgilent 7890 Series
CategoryMeasuring Instruments
LanguageEnglish

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