Inlets and valves
6850
6850
Released: April 2004 6850 Series Gas Chromatograph Service Procedures 66
When reinstalling the shell weldment:
• Tighten the 3/4-inch nut on the base of the
heater block assembly finger-tight.
• Install a new gold seal in the reducing nut.
• When done, check for leaks using the Control
Module inlet leak and the inlet split vent
test.
Purged packed inlet service
Inlet assembly and flow module
removal
WARNING
High temperature. The inlet and oven may be
very hot. Before beginning, turn off the inlet
and oven heated zones and allow them to
cool.
1. Load the SERVICE method, or turn off the
inlet and oven heated zones and allow them
to cool, or turn off the instrument and allow
the heated zones to cool.
2. Turn off the carrier gas at its source.