Agilent Technologies 6850 Series II User Information page 145

If you are using capillary columns:
•
•
•
If you are using packed columns:
•
•
Warning
Be careful! The oven and/or inlet may be hot enough to cause burns.
This test requires either a Control Module or a ChemStation/Cerity Chemical to
edit setpoints.
Procedure
1.
2.
3.
4.
5.
Released: March 2004
No-hole ferrule, 5020-8294
Column nut, 5181-8830
7/16-inch wrench
Solid Vespel plug, 0100-1372
9/16-inch wrench
Load the SERVICE method or reset the inlet and oven temperatures to
OFF. Let the heated zones cool to room temperature. Also, make sure that:
• If you have entered parameters that you do not want to lose, store
them as a method
• If the detector is on, turn it off
Turn the inlet pressure off at the source.
Remove the column, if one is installed, and cap the column fitting. If you
are using a capillary column, insert a no-hole ferrule in the column nut to
create a plug. If you are using a packed column, use the Vespel plug.
Remove the old septum and replace it with a new one. For instructions on
changing septa, see
Inspect the O-ring and replace it if it is hard and brittle or cracked. See
"Changing the O-ring" on page 142
6850 Series II GC User Information
"Changing septa" on page
for instructions on changing the O-ring.
Routine Maintenance: Inlets
Maintaining a purged packed inlet
139.
page 145 of 256