To Change The Septum On The Ptv Inlet - Agilent Technologies Agilent 7890 Series Maintenance Manual

To Change the Septum on the PTV Inlet

WA R N I N G
Merlin Microseal and cap
C A U T I O N
Maintaining Your GC
1 Gather the following:
• Replacement septum. (See
the PTV Inlet"
• 5/8- inch wrench
Load the inlet maintenance method
2
to become ready.
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.
Remove the septum retainer nut or Merlin cap. If the
3
septum head begins to turn during removal, support it
manually while removing the cap.
Use tweezers to remove the septum or Merlin Microseal
4
from the retainer nut. Do not gouge or scratch the
interior of the septum head.
5 Firmly press the new septum or Merlin Microseal into the
fitting. The metal parts side of the Merlin Microseal
should face down (toward the oven).
6 Replace the septum retainer nut or Merlin cap and
finger- tighten. Tighten the septum retainer nut until the
C- ring is about 1 mm above the nut.
Overtightening the septum nut can cause contamination.
Maintaining the PTV Inlet
"Consumables and Parts for
on page 152.)
and wait for the GC
Standard septum
9
163