Why do nuclear density gauges suffer from corrosion?

Nuclear density gauges are exposed to extreme, moisture-rich environments. From the torrential downpours and hurricanes of Texas, to the arid deserts of Arizona, nuclear density gauges are expected to perform in a variety of conditions. For the most part, these instruments are rugged and can withstand much of what nature has to offer; however, this is only true if the instrument is well-maintained. There are several points-of-entry on the gauge, and each point has a gasket to prevent moisture and dirt from getting inside; however, these gaskets breakdown, and when they do, they will need to be replaced. Aged, damaged gaskets allow water and humidity to contact the sensitive electronics contained within the gauge. The resulting corrosion is destructive and costly.

Four simple ways to prevent corrosion..

  • Ensure all screws are tightly fastened at all times
  • Replace gaskets frequently (at least every two years)
  • Have your instrument serviced at regular intervals (usually every 6-12 months)
  • Promptly send your instrument in for service if it gets wet

Corrosion can be a destructive force. In fact, corrosion causes more damage to nuclear density gauges than emergency situations involving unfocused operators. Therefore, it is important to keep your gauge dry, service your instrument regularly, and replace gaskets often.

If you would like more information, please contact Qal-Tek Associates.

by John Walker of Qal-Tek

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