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. |
- Go to Unit [n] > Enable Manual Control. Ensure a checkmark displays to the left of the menu item. If the analyzer schematic does not display, go to Unit [n] > Show Instrument Schematic.
- Right click on the valve of the appropriate port. If the valve is open, click Close to close the valve.
- 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. |
- Place a new frit into the connecting nut.
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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.
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