Sample Port Frit Replacement
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The equipment images in this topic may differ slightly from your equipment; however, the instructions are the same unless otherwise noted.
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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.
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Use the proper size frit for the sample port. The analyzer will not operate properly if an incorrect size is used.
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- Use a wrench to remove the connecting nut from the sample port. Pry out the filter (frit) and O-ring.
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To avoid degassing problems, the frit should be clean and should not be touched with bare hands. |
- Place a new frit into the connecting nut.
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- O-ring
- Filter (frit)
- Sample tube fitting
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- 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.