This Information Applies To: Agilent Intuvo 9000, 8860, 8890, 7890A/B, 7820A, 6890, 6850 GC Systems with Split/Splitless, or Multimode Inlets.
This article describes how to replace the inlet septum for Split/Splitless and multimode inlets for all Agilent GC Systems. Regular replacement of the septum can reduce small leaks in the inlet, allow for more reproducible chromatography, and protect the column from degradation. Replacement intervals should be every 100 to 400 injections depending on the septum part number and can be replaced sooner if experiencing symptoms of a leak.
Steps To Follow:
Warning: The oven and/or inlet may be hot enough to cause burns. If the inlet is hot, wear heat-resistant gloves. If possible, set the temperatures to cooler values during maintenance activities
Tips: Steps 9 to 11 of this procedure are executed automatically in the Intuvo 9000, 8890 and 8860 GC systems if the septum replacement was performed from the Maintenance section of the touchpad, or browser interface.
Learn how to effectively maintain your Split/Splitless and Multimode Inlet:
GC-7890-2240s - Agilent 7890 Series GC: Preparing for Maintenance and Maintenance Utilities
GC-7890-2245s - Agilent 7890 Series GC: Split/splitless inlet Troubleshooting
GC-8890-2200s - Agilent 8890 GC Maintenance and Troubleshooting e-learning available from Agilent education.
Replacing your septum, liner and O-ring Video on Agilent.com