To Replace The Septumless Head Ptfe Ferrule On The Ptv Inlet - Agilent Technologies Agilent 7890 Series Maintenance Manual

To Replace the Septumless Head PTFE Ferrule on the PTV Inlet

WA R N I N G
Maintaining Your GC
1 Gather the following:
• Syringe with 23- gauge needle (See
Parts for the PTV Inlet"
• Replacement PTFE ferrule
Load the inlet maintenance method
2
to become ready.
Be careful! The oven and/or inlet may be hot enough to cause
burns. If either is hot, wear heat-resistant gloves to protect your
hands.
Unscrew the guide cap from the septumless head and
3
remove the PTFE ferrule.
Push the guide cap and replacement ferrule over the
4
syringe needle so that at least 10 mm of the needle tip is
exposed.
5 Guide the end of the needle into the septumless head
until the ferrule meets the septumless head.
Loosely install the guide cap.
6
If not configured, configure the column.
7
Put the inlet into Splitless mode.
8
Set the column flow to 5 mL/min and the purge flow to
9
60 mL/min.
Maintaining the PTV Inlet
"Consumables and
on page 152.)
and wait for the GC
9
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