38 www.fluke.com/egt Earth Ground Testers Fluke 1625-2 and 1623-2 Geo Earth Ground Testers Simpler, faster testing Grounding testers, like the Fluke 1623-2 and 1625-2, help maintain uptime and lower the risk of electric shock to users while helping solve intermittent power quality problems. The Fluke earth ground testers perform all four essential earth ground test methods that users demand: • 3- and 4-pole Fall of Potential, earth resistance loop testing • 4-pole soil resistivity testing • Selective earth ground testing using one clamp • Stakeless earth ground testing using two clamps The 1623-2 and 1625-2 also make earth grounding tests faster and easier than previous methods because of automatic data collection and storage and faster setup. Color coded wires for easier identification and deploying of wire reels and stakes. • IP56 rated for outdoor use • USB data storage and transfer • 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 These products are for unpowered installations measuring grounding connections. Selection guide 1630 1621 1623-2 1625-2 2-Pole (ac) resistance measurement • • • 3-Pole earth measurement • • • Measurement frequency—128 Hz • • 4-Pole earth ground and soil resistivity measurement • • Selective testing • • Stakeless testing (ground loop resistance) • • • Memory • • USB port • • Automatic Frequency Control (AFC) 94 Hz to 128 Hz • R* measurement • Adjustable limits • Ordering information Models Included accessories FLUKE-1625-2 Advanced GEO Earth Ground Tester Two test leads, USB cable, batteries, quick reference guide, users manual FLUKE-1623-2 Basic GEO Earth Ground Tester Two test leads, USB cable, batteries, quick reference guide, users manual FLUKE-1625-2 KIT Advanced GEO Earth Ground Tester Kit Two test leads, USB cable, 2 clamps (1 source, 1 sensing), carrying case, 4 earth ground stakes, 3 color coded cable reels, batteries, quick reference guide, users manual FLUKE-1623-2 KIT Basic GEO Earth Ground Tester Kit Kits—buy more, save more Recommended accessories Fluke 1625-2 Kit ES-162P4-2 Stake/reel set for 4-pole measurement EI-1625 Selective/ stakeless clamp set for 1625-2 EI-162BN 320 mm (12.6 in) Split Core Transformer for use with Fluke 1625-2 Clamp-on transformer accessory for ground loop measurements on transmission pylons. Faster setup, easier testing and deployment of wire reels and stakes. EARTH GROUND TESTERS