To Clean The Purged Packed Inlet - Agilent Technologies 7820A Manual

5
Maintaining the Purged Packed Inlet

To Clean the Purged Packed Inlet

WA RN IN G
C AU TI O N
78
Gather the following:
1
• Replacement O-ring (See
Purged Packed Inlet"
• Replacement glass liner
• Replacement septum
• Solvent that will clean the type of deposits in your inlet
• Compressed, filtered, dry air or nitrogen
• Beaker
• Cleaning brushes—The FID cleaning kit (part number
9301-0985) contains appropriate brushes
Lint-free gloves
•
2 Load the inlet maintenance method
become ready.
Be careful! The oven and/or inlet may be hot enough to cause
burns. If the inlet is hot, wear heat-resistant gloves to protect your
hands.
Remove the column.
3
4 Remove the septum nut and septum.
5 Remove the top insert weldment.
6 Remove the glass liner and O-ring.
7 If used, remove the adapter.
8 Ultrasonically clean the septum nut, top insert weldment,
and adapter (if used) in a suitable solvent.
Place a beaker in the oven under the inlet to catch the
9
solvent.
Wear clean, lint-free gloves to prevent contamination of parts with
dirt and skin oils.
10 Soak a cleaning brush with the solvent and vigorously scrub
the interior walls of the inlet.
Blow the inside of the inlet dry with compressed air or
11
nitrogen.
"Consumables and Parts for the
on page 60.)
and wait for the GC to
Maintaining Your GC