To Install A Fused Silica Column Into The Transfer Line - Agilent Technologies 7697A Maintenance Manual

To Install a Fused Silica Column into the Transfer Line

C A U T I O N
C A U T I O N
Maintenance
Wear clean, lint-free gloves to prevent contamination of parts with
dirt and skin oils.
Transfer line bends with a bend radius of less than 75 mm are not
recommended. However, if a sharp bend is necessary to route the
transfer line, be sure the bend radius is at least 35 mm.
1 Gather the following:
• 3/16- inch open end wrench
• Column cutting wafer
• 1/4- inch open end wrench
• Wrench, angled, septum nut (GC inlet wrench)
• Polyimide ferrule sized for this column (or, use a new
1/16- inch internal reducer union)
• 530 µm, 250 µm, or 320 µm fused silica column (at
least 1.2 m length)
• 11- mm septum for GC inlet
• Septum nut adapter (G3452- 60835)
• Isopropanol
• Lab tissue
• Lint- free gloves
Remove the existing fused silica from the transfer line.
2
See "To Remove the Fused Silica Column from the
Transfer Line".
If no fused silica is currently installed, cool the transfer
line, 6 port valve (sample loop), and GC inlet and oven to
safe handling temperatures.
Remove the pneumatics front cover. See
3
Pneumatics Front Cover".
3
Maintenance
"To Remove the
61