The Fluke 1625 is a distinctive earth ground tester that can perform all four types of earth ground measurement.

Specifically, the Fluke 1625 tester is able to measure earth ground loop resistances using only clamps “ called Stakeless testing.

This method doesn™t require the use of earth ground stakes or the disconnection of ground rods.

Testing Methods:

• 3- and 4-Pole Fall of Potential “ standard earth ground testing using two ground stakes
• 4-Pole Soil Resistivity testing “ determine soil resistivity using four ground stakes
• Selective testing “ without disconnecting ground rods, a technician can measure ground resistance using a combination of stakes and a clamp
• Stakeless testing “ innovative solution using only clamps, instead of ground stakes, to measure earth ground loop resistance