Maintain Mercury Level

Each analysis may extract from 3 to 15 mL of mercury from the reservoir depending on the penetrometer and sample size used. When running a low pressure analysis, a pop-up message displays on the Low Pressure Analysis window when the level of mercury drops below the minimum level. The mercury level should be within 0.5 to 1.0 in. (1 to 3 cm) below the top of the mercury viewing window. It must never reach above the viewing window. To avoid delays, check the mercury level, adding mercury when necessary, at the beginning of each day.

  Ensure the use of triple distilled mercury that is at least 99.999% pure.

The analyzer requires approximately 5 lbs of mercury (minimum) to begin analyses. Do not use more than 10 lbs.

A spilled-mercury container, located in the center of the analyzer work surface behind the high pressure chambers, is provided so that any accidentally spilled mercury can be immediately brushed into it. Pour approximately 1.0 to 2.0 cc of oil into the container to prevent the mercury from vaporizing.

  1. Remove the mercury reservoir cap.
  2. Slowly pour the mercury into the reservoir to within 0.5 to 1.0 in. (1 to 3 cm) from the top of the viewing window.
  3. Replace the reservoir cap.
  Overfilling may interfere with the vacuum system. Reservoir cap should be finger tight only.
  Ensure that the mercury filling funnel is tightly secured. If it is necessary to tighten the funnel, use an appropriate tool. If the funnel is not tightened, there could be a gas leak and the vacuum will not pull properly.
 
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