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• Proportional valve 2 could be stuck par-
tially closed or have contamination that
is partially plugging the orifice of the
valve (in this case, the valve or EPC mod-
ule would need to be replaced)
Released: April 2004
Suggested solutions
1. Select an appropriate liner for the split appli-
6850 Series Gas Chromatograph Service Procedures
cation. Depicted below are the two inlet
liners shipped by Agilent Technologies with
the 6850 GC. One is for split, the other for
splitless analysis. There are very specific
design differences in the two glass liners to
make them optimum for their respective
operating modes.
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