Collecting Subsamples from the LI-8100A

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Assemble the Trace Gas Sampling Kit for the LI-8100A using the T-shaped compression fitting, two sets of ferrules, a septum, and tubing lengths with quick-connect fittings according to the following instructions.

  1. Remove the brass nuts from the compression fitting.
  2. Locate the tubing with quick-connect fittings and two sets of ferrules.
  3. Install a brass nut on each end of the tubing assemblies, and then install one set of ferrules on each assembly as shown.
  4. Note the orientation of the ferrules. The smaller, beveled piece must be installed first, facing the correct direction. When installed, the end of the tube should extend approximately 3 mm (1/8") beyond the ferrules.
  5. Insert the septum into the remaining nut.
  6. The septum has a self-sealing plastic coating on one side (identified by the glossy coating). For optimum sealing, install the septum with the glossy side facing the T-fitting.
  7. Tighten the nuts on the T-fitting.
  8. Do not over-tighten them, as this could create leaks around the septum and ferrules.
  9. Install the assembly in line between the LI-8100/A and the flux chamber.