62 Troubleshooting
4 GC Not Ready Symptoms
The Inlet Pressure or Flow Fluctuates
A fluctuation in inlet pressure causes variations in the flow rate
and retention times during a run. Do the following:
• Check if the gas purifier or gas generator is operating at or
near capacity.
• Check the supply gas for sufficient delivery pressure.
• Verify that the supply pressure regulator is functioning
properly.
• Check for leaks. (See “Checking for Leaks” .)
• Check for large restrictions in the inlet liner or split vent
trap.
• Verify that the correct liner is installed.
• Check for a restriction in headspace, purge and trap, and any
other external sampling devices.
To Next Page
Loading...
