To Clean The Septum Seat In The Septum Head Assembly Of The Ptv Inlet - Agilent Technologies 8890 Maintaining Manual

9 Maintaining the PTV Inlet

To Clean the Septum Seat in the Septum Head Assembly of the PTV Inlet

To Clean the Septum Seat in the Septum Head
Assembly of the PTV Inlet
1 Gather the following:
2 Manually set the inlet and oven temperature to < 40 °C, and wait for the inlet, oven, and
Be careful! The oven and/or inlet may be hot enough to cause burns. If either is hot, wear
WAR N IN G
heat-resistant gloves to protect your hands.
Wear clean, lint-free gloves to prevent contamination of parts with dirt and skin oils.
C AU T I O N
3 Remove the septum retainer nut or Merlin cap. If the septum head begins to turn during
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
6 Scrub the residue from the retainer nut and septum holder with a small piece of rolled-up
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
9 Firmly press the new septum or Merlin Microseal into the fitting. See
10 Replace the septum retainer nut or Merlin cap and finger-tighten. See
11 Perform an inlet Leak & Restriction test and reset the maintenance counters.
12 Exit maintenance mode. Select Maintenance > Instrument > Perform Maintenance >
13 Restore the analytical method.
Maintaining Your GC
• Replacement septum, see
Temperature Vaporization Inlet"
• 5/8-inch wrench
• Tweezers
• Compressed, filtered, dry air or nitrogen
• Lint-free gloves
other parts you might come into contact with inside the oven, to cool before continuing.
Alternately, place the GC in maintenance mode: Maintenance > Instrument > Perform
Maintenance > Maintenance Mode > Start Maintenance.
removal, support it manually while removing the cap.
gouge or scratch the interior of the septum head.
steel wool and tweezers. Do not do this over the inlet.
tighten an additional 1/2 turn with a wrench.
Septum on the PTV Inlet"
Septum on the PTV Inlet"
Maintenance Mode > Finished.
"Consumables and Parts for the Programmable
on page 144.
on page 154.
on page 154.
"To Change the
"To Change the
155