64 Troubleshooting
4 GC Not Ready Symptoms
The Measured Column Flow Does Not Equal the Displayed Flow
If the actual column flow does not match the calculated flow
displayed on the GC, do the following:
• Verify that the measured flows are corrected to 25 °C and
1 atmosphere.
• Verify that the correct column dimensions are configured
accurately, including the actual (trimmed) column length.
• The split vent line or trap may be partly plugged, creating an
actual inlet pressure higher than the setpoint pressure.