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Jun 2001
Inlets
Agilent 6890 Gas Chromatograph Service Manual
Volatiles Interface 250
Replacement procedures
Note If the transfer line is from a G1900A Purge and Trap, install the transfer line
support nut assembly up and inside the metal sleeve of the heated line
assembly to prevent damage to the fused silica line.
Figure 250-8 Installing the G1900A Purge and Trap transfer line
10. After the column is installed at both the interface and the detector,
establish a flow of carrier gas through the interface and maintain it for
10 to 15 minutes. Check for leaks. Heat the interface to operating
temperatures and retighten the fittings, if necessary.
Replacing the heater/sensor assembly
WARNING Turn off the oven and the interface and allow them to cool. Turn off all flows
at the initial gas supply. Then turn off the main power switch and unplug the
power cord.
1. Disconnect the transfer line. Loosen the nut with a 1/4-inch wrench and
remove the line.
Transfer line
Support hangar
Metal sleeve
Transfer line
support
nut assembly
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