To Check The Needle-To-Column Size On The Coc Inlet - Agilent Technologies Agilent 7890 Series Maintenance Manual

7
Maintaining the COC Inlet

To Check the Needle-to-Column Size on the COC Inlet

WA R N I N G
WA R N I N G
110
1 Gather the following:
• Insert (See "Consumables and Parts for the COC Inlet"
on page 102.)
• Syringe needle
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.
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.
Check that the needle is the correct size for the desired
3
column id. If needed, replaced the needle with one of the
correct size. See "Consumables and Parts for the COC
Inlet" on page 102, and
Syringe" on page 122 or
Needle in a Syringe for the COC Inlet"
Identify the correct insert for the column size. (See
4
"Consumables and Parts for the COC Inlet"
Use the insert that is the same size as the syringe needle
to verify that the column you plan to use is the correct
size.
Make a clean cut on the end of the column. (See
5
Install a Capillary Column with the COC Inlet"
page 107.)
Insert the column into one end of the insert.
6
and wait for the GC
"To Replace a Needle in a
"To Replace the Fused Silica
on page 123.
on page 102.)
Maintaining Your GC
"To
on