Agilent Technologies Agilent 7890 Series, Maintenance Manual

Page: 90 / 354

90 Maintaining Your GC
6
Maintaining the Purged Packed Inlet
To Install a Packed Metal Column
1
Gather the following:
• 7/16- inch, 9/16- inch, and 1/2- inch wrenches
• Lint- free gloves
2
Load the GC maintenance method and wait for the GC to
become ready.
3 Prepare the packed metal column. (See “To Install
Ferrules on a Packed Metal Column” on page 99.)
4
Install the 1/8- inch or 1/4- inch packed column inlet
adapter, if necessary. (See
“To Install an Adapter on the
Purged Packed Inlet” on page 81.)
5
Attach the column to the inlet adapter. Finger- tighten the
nut.
6 Tighten the nut an additional 1/4 turn with a wrench (for
a 1/8- inch column) or an additional 3/4 turn (for a
1/4- inch column).
Use two wrenches, one on the column nut and the other
on the adapter, to prevent the adapter from rotating.
7 Press
[Config]
,
[Column 1]
or
[Column 2]
, enter
0.00
in either
Length or Diameter , and identify the inlet and detector to
which the column is attached.
8
Condition the column, if necessary. (See “To Condition a
Packed Column” on page 97.)
WA R N I N G
Be careful! The oven, inlet, and/or detector may be hot enough to
cause burns. If the oven, inlet, or detector is hot, wear
heat-resistant gloves to protect your hands.
C A U T I O N
Wear clean, lint-free gloves to prevent contamination of parts with
dirt and skin oils.
WA R N I N G
Do not use hydrogen as the carrier for conditioning! It could vent
into the oven and present an explosion hazard.