Description
The Fluke 1625-2 earth ground tester measures earth ground loop resistances using only clamps, only stakes, or one clamp and stakes. With the stakeless test method, the Fluke 1625-2 is able to measure earth ground loop resistances for multi-grounded systems using only current clamps. This technique eliminates the dangerous, and time-consuming job of disconnecting parallel grounds, and finding suitable locations for auxiliary ground stakes.
Measurement methods
• Tests 3- and 4-pole fall-of-potential, and 4-pole soil resistivity (with stakes)
• Performs selective earth ground rod testing (one clamp + stakes)
• Performs stakeless earth ground rod testing (two clamps)
Fluke 1625-2’s improved new functions:
• 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
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