Sample Port Frit Replacement

 

The equipment images in this topic may differ slightly from your equipment; however, the instructions are the same unless otherwise noted.

A frit is located in the connecting nut attached to each analysis port. If the frit becomes contaminated, the contaminant may adsorb or desorb during analysis, affecting the results. A contaminated frit on the analysis port may be indicated as a leak or a free space reading much lower than normal.

 

Use the proper size frit for the sample port. The analyzer will not operate properly if an incorrect size is used.

  1. Use a wrench to remove the connecting nut from the sample port. Pry out the filter (frit) and O-ring.
  To avoid degassing problems, the frit should be clean and should not be touched with bare hands.
  1. Place a new frit into the connecting nut.
  1. O-ring
  2. Filter (frit)
  3. Sample tube fitting
  1. Replace the filter and O-ring. Carefully reassemble the sample tube fitting and reinstall on the sample port. Tighten by hand, then with a wrench to prevent leaks.