210 Split/Splitless Inlet
Leak testing—EPC and manual inlets
22 of 30
Jun 2001
Inlets
Agilent 6890 Gas Chromatograph Service Manual
3. Set the inlet’s Total Flow to 60 mL/min.
4. Set the pressure to 25 psi.
Scroll to Pressure and enter “25” in the “Pressure” field.
5. Wait 10 minutes for pressure equilibration.
If pressure cannot be achieved, either a very large leak is present in the
system, or the supply pressure is not high enough.
6. After 10 minutes, turn the inlet pressure “Off.”
Press
[Front Inlet] (or [Back Inlet]), scroll to the “Pressure” field,
and press
[Off]. Both the flow controller and the back pressure valves
will close.
Note When the inlet pressure or flow is turned off, the safety shutdown feature,
including the audible alarm, is not functional. The inlet will not automatically
shut down. This will provide you with unlimited time to locate leaks.
Press [Front Inlet] or [Back Inlet] and enter “60” in the “To t flow ” field.
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