Micromeritics GEMINI VII KEYPAD, Руководство оператора, Страница: 131 / 159

Recover from a Power Failure
The analyzer saves entered and collected data in case of power failure. File parameters and any
other data entered will still be present when power is restored. If an analysis was in progress when
the power failure occurred, it will be canceled when the analyzer restarts. Any data collected
during the analysis will still be present, but the analysis should be restarted in order to produce
complete results.
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.
2. Place a new frit into the connecting nut.
A. O-ring
B. Filter (frit)
C. Sample tube fitting
3. 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.
Check and Clean the Dewar
Gemini VII Keypad Operator Manual
239-42801-01 (Rev E) — July 2021
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