240 Programmed Temperature Vaporization Inlet (PTV)
Replacement procedures
28 of 46
Jun 2001
Inlets
Agilent 6890 Gas Chromatograph Service Manual
Installing the column
Graphpack–2M ferrules are sized to the column outer diameter.
1. Place the appropriate Graphpack ferrule onto the column inlet end and
pull it at least 30 mm from the end.
2. With a glass knife or other fused silica cutter, remove approximately 10
mm from the column end to eliminate graphite contamination.
3. Position the ferrule so that it is 17 mm from the column end. Place a small
mark (typewriter correction fluid is useful) at the back of the ferrule and,
making sure that the column is correctly positioned, insert the column
end into the adapter.
Column
ID
Graphpack ferrule
hole ID
Quantity Part no.
200 mm 0.31 mm 10 5182-9756
250 mm 0.40 mm 10 5182-9768
320 mm 0.45 mm 10 5182-9769
530 mm 0.70 mm 10 5182-9770
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