The Fluke 1625 Earth Ground Tester not only measures ground resistance using the classic “fall of potential test,” but also enables time saving testing using “selective” and “stakeless” methods. “Selective” testing doesn’t require the electrode under test to be disconnected during the measurement, thus increasing safety. The simple “stakeless” method quickly checks ground connections using two current transformers (probes) clamped around the ground conductor under test. The Fluke 1625 is a distinctive earth ground tester that can perform all four types of earth ground measurement. Specifically, the 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. The testing methods of this tester include 3 and 4 pole fall of potential which is standard earth ground testing using two ground stakes; selective testing without disconnecting ground rods, a technician can measure ground resistance using a combination of stakes and a clamp, and stakeless testing which is an innovative solution using only clamps, instead of ground stakes, to measure earth ground loop resistance.
Performs stakeless. 3-pole and 4-pole fall-of-potential soil resistivity, and selective, earth ground testing for commercial and industrial applications
Advanced automatic frequency control (AFC) identifies interference and selects the best frequency to avoid corruption of measurements by ground currents and their harmonics
Meter uses resistance measurements to calculate earth ground impedance at 55 Hz for a more precise reflection of earth ground resistance that is provided by fault-to-earth grounding
Displays which stakes and clamps need to be connected after selecting type of test to be performed
Stakeless earth ground rod-testing using 2 clamps