Agilent Technologies 7820A Manual page 258

13
Maintaining the G3435A/G3436A FPD
Score column here
Column measuring tool
Ferrule
Column nut
258
5 Tighten the column nut until it grips the column. Tighten the
nut an additional 1/8 to 1/4 turn with a pair of wrenches.
Snug the septum against the base of the column nut.
6 Use a wafer cutter at 45° to score the column.
7 Snap off the column end. The column may protrude about
1 mm beyond the end of the tool. Inspect the end with a
magnifying loupe to make certain that there are no burrs or
jagged edges.
Remove the column, nut, and swaged ferrule from the tool.
8
Wipe the column walls with a tissue dampened with
9
isopropanol to remove fingerprints and dust.
10 Verify that a capillary adapter is installed in the detector
fitting. (See "To Install a Capillary Column Adapter in the
FPD" on page 255.)
11 Carefully thread the swaged column up into the adapter.
Finger-tighten the column nut, then use a wrench to tighten
an additional 1/8 turn.
145 mm
Bad
Good
Maintaining Your GC