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Fluke 1625-2 GEO Earth Ground Tester





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The Fluke 1625-2 GEO Earth Ground Tester can perform all four types of earth ground measurement:

  • 3-and 4-pole Fall-of-Potential (using stakes)
  • 4-pole soil resistivity testing (using stakes)
  • Selective testing (using 1 clamp and stakes)
  • Stakeless testing (using 2 clamps only)


The Fluke 1625-2 offer such as advanced features as:

  • Automatic Frequency Control (AFC) - identifies existing interference and chooses a measurement frequency to minimize its effect, providing more accurate earth ground value.
  • R* measurement - calculates earth ground impedance at 55 Hz to more accurately reflect the earth ground resistance that a fault-to earth ground would see.
  • Adjustable limits - for quicker testing