Agilent Technologies 7820A - To Replace the µECD Fused Silica Indented Mixing Liner and Install the Makeup Gas Adapter

Maintaining the µECD 10
Maintaining Your GC 197
To Replace the µECD Fused Silica Indented Mixing Liner and Install the
Makeup Gas Adapter
1 Gather the following:
• Fused silica indented mixing liner (See “Consumables and
Parts for the µECD” on page 194.)
• 1/4-inch Swagelok nut
• 1/4-inch Vespel/graphite ferrule
• 9/16-inch wrench
• Methanol
• Lint-free gloves
2 Load the GC maintenance method and wait for the GC to
become ready.
3 Remove the insulating cup from the detector base.
4 Remove the column from the makeup gas adapter.
5 Remove the makeup gas adapter.
a Loosen the adapter nut with a wrench and slide out the
makeup gas adapter from the µECD. Remove the ferrule.
The makeup gas adapter will remain attached to the
supply tubing and hang suspended in the oven.
b Adjust the adapter’s position so that maintenance can be
performed on the adapter easily and without obstruction.
WARNING
Be careful! The oven and/or detector may be hot enough to cause
burns. If the detector is hot, wear gloves to protect your hands.
WARNING
Wear safety glasses to protect your eyes from flying particles
while handling, cutting, or installing glass or fused silica capillary
columns. Use care in handling these columns to prevent puncture
wounds.
CAUTION
To prevent damage avoid flexing/bending the tubing on the makeup
gas adapter.