Maintaining the FID 11
Maintaining Your GC 229
To Bakeout the FID
1 Bakeout the FID with the column installed or uninstalled.
If uninstalled, gather the following (see “Consumables and
Parts for the FID” on page 196):
• Capillary adapter (adaptable FID only)
• Column nut
• No- hole ferrule
2 Load the GC maintenance method and wait for the GC to
become ready.
3 If the column is uninstalled, plug the detector connection
with the capillary adapter, column nut, and no- hole
ferrule.
Maintain inert carrier gas flow through the column, or
remove the column from the GC.
4 Set the detector temperature at 350 to 375 °C.
5 Set normal operating flows.
6 Light the FID flame.
7 Set the oven temperature to 250 °C or 25 °C above the
normal maximum operating temperature. Do not exceed
the column’s temperature limit.
If using hydrogen as a carrier gas, turn off the hydrogen supply
and cap the end of the column to prevent an oven explosion.
Be careful! The detector may be hot enough to cause burns. If the
detector is hot, wear heat-resistant gloves to protect your hands.
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