HOME > FLUKE > EARTHGROUND > INDEX fluke logo

Fluke Earth Ground Testers

Most facilities have grounded electrical systems, so that in the event of a lightning strike or utility overvoltage, current will find a safe path to earth. A ground electrode provides the contact between the electrical system and the earth. To ensure a reliable connection to earth, electrical codes, engineering standards, and local standards often specify a minimum impedance for the ground electrode. The International Electrical Testing Association specifies ground electrode testing every three years for a system in good condition with average up-time requirements.

Fluke earth ground testers provide quick, accurate impedance measurements through several test methods: 3- and 4-pole Fall-of-Potential testing, selective testing, stakeless testing and 2-pole testing.
Click here for a larger image of the Fluke 1621Click for larger image
Fluke 1621 Shown

Product Information
Application Notes HTML
PDF Help

Model Image Description More Info Buy Online
1621 Fluke 1621 Earth Ground Tester
  • 3-pole Fall-of-Potential earth testing for basic measurements
  • 2-pole resistance measurements for added versatility
  • Easily capture values with single-button operation
  • Ensure accurate measurements with automatic 'noise' voltage detection
  • Hazardous voltage warning offers increased user protection
  • Clearly read and record data with a large, backlit display
More Info >> Buy Now
Sale $899.96
(Reg. $999.95)
1623 Fluke 1623 Basic GEO Earth Ground Tester
  • One-button measurement concept
  • 3 & 4-pole earth ground measurement
  • 4-Pole soil resistivity testing
  • 2-pole resistance measurement AC
  • Selective testing, no disconnection of ground conductor (1 clamp)
  • Stakeless testing, quick ground loop testing (2 clamps)
  • Measuring frequency 128 Hz
More Info >> Buy Now
$1,699.95
Fluke 1625 Fluke 1625 Advanced GEO Earth Ground Tester
  • 3 & 4-pole earth ground measurement
  • 4-Pole soil resistivity testing
  • 2-pole resistance measurement AC
  • 2 & 4-pole resistance measurement DC
  • Selective testing, no disconnection of ground conductor (1 clamp)
  • Stakeless testing, quick ground loop testing (2 clamps)
  • Earth impedance measurement at 55 Hz
  • Automatic frequency control (AFC) (94, 105, 111, 128 Hz)
  • Measuring voltage switchable 20/48V
  • Programmable limits, settings
More Info >> Buy Now
$2,799.95
1623-2 Fluke 1623-2 GEO Earth Ground Tester - Basic
  • USB data storage and transfer (512kB flash memory)
  • 3 & 4 pole Fall of Potential, earth resistance loop testing
  • 4-pole Soil Resistivity testing
  • Selective earth ground rod testing using 1 clamp
  • Stakeless earth ground rod testing using 2 clamps
  • Selective testing, no disconnection of ground conductor (1 clamp)
  • Measuring frequency 128 Hz
  • IP56 rated for outdoor use
More Info >> Buy Now
$1,699.95
1625-2 Fluke 1625-2 GEO Earth Ground Tester - Advanced
  • USB data storage and transfer (512kB flash memory)
  • 3 & 4 pole Fall of Potential, earth resistance loop testing
  • 4-pole Soil Resistivity testing
  • Selective earth ground rod testing using 1 clamp
  • Stakeless earth ground rod testing using 2 clamps
  • IP56 rated for outdoor use
  • Automatic frequency control (AFC) (94, 105, 111, 128 Hz)
  • Measuring voltage switchable 20/48V
  • Programmable limits, settings
More Info >> Buy Now
$2,799.95
Fluke 1630 Fluke 1630 Earth Ground Clamp
  • Quick and easy use - no earth ground stakes are necessary
  • Large, 35 mm (1.35 in) jaw opening
  • Measures ground resistance from 0.025 Ω to 1500 Ω
  • Measures ground leakage current from 0.2 mA to 30 A
  • High and low alarming
  • Automatic self calibration
More Info >> Buy Now
$1,799.95