Routine Maintenance: Inlets
Maintaining a split/splitless inlet
Released: March 2004 6850 Series II GC User Information page 122 of 256
Septum lifetime depends on injection frequency and needle quality; burrs,
sharp edges, rough surfaces, or a blunt end on the needle decrease septum
lifetime. When the instrument is in steady use, daily septum replacement is
recommended.
The type of septa you use depends on your chromatography needs. You can
order septa directly from Agilent Technologies; see the Agilent catalog for
consumables and supplies for ordering information.
Table 25. Recommended Septa for the Split/Splitless Inlet
Tools and materials
• New septum
• Septum nut wrench (part no. 19251–00100)
• 0- or 00-grade steel wool (optional)
Procedure
Warning Be careful! The oven and/or inlet may be hot enough to cause burns.
1. Load the SERVICE method or reset the inlet and oven temperatures to
OFF or turn the main power switch off. Let the heated zones cool to room
temperature.
2. Turn the inlet pressure off at the source.
Description Part no.
11-mm septum, low-bleed red 5181—1263
11-mm septum with partial through-hole, low-bleed red 5181—3383
11-mm septum, low-bleed gray 5080—8896
Merlin microseal septum 5181—8815
11-mm high-temperature silicon septum (350°C and higher) 5182—0739
To Next Page
Loading...
Need help?
General
