39 Earth Ground Testers www.fluke.com/egt Fluke 1630 Earth Ground Clamp Meter Safely measures ground loop resistance The Fluke 1630 Earth Ground Clamp Meter is able to measure ground loop resistances—using the stakeless testing method. This test technique eliminates the dangerous, and time consum- ing activity, of disconnecting parallel grounds. You can also perform earth ground tests: inside buildings, on power pylons or anywhere you don’t have access to soil. With the stakeless testing method, no earth ground stakes are used at all. A known voltage is induced by one half of the clamp and the current is measured by the other half. The tester auto- matically determines the ground loop resistance at this grounding connection. • 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 • Rugged carrying case and resistance check loop included • Two-year warranty • CAT III 300 V, CAT II 600 Fluke 1621 Basic Earth Ground Tester Earth ground tester for resistance measurement The Fluke 1621 Earth Ground Tester is a rugged, easy-to-use tester for three-pole ground resistance measurements and two-pole ac resistance measurements. Earth ground resistance is measured by installing earth ground test electrodes, and testing. With a simple user interface and intuitive functionality, the large, clear LCD display provides high visibility results in daylight or poor lighting conditions. • Three-pole earth resistance measurements • Two-pole AC resistance measurements • Large dual backlit display • Limit settings for automatic measurement evaluation • CAT II 600 V • Two-year warranty Kits—buy more, save more Recommended accessories Fluke 1621 Tester Cable Reel 50 m Ground/earth wire (162.5 ft) for 1621 Cable Reel 25 m Ground/earth wire (81.25 ft) for 1621 ES-162P3 Stake/ reel set for 3-pole measurements for 1621 Ordering information Models Included accessories FLUKE-1621 Basic Earth Ground Tester Two measuring leads with alligator clips, 2 m (6 ft), yellow protective holster, 9 V alkaline battery (LR61), users manual, CD Ordering information Models Included accessories FLUKE-1630 Earth Ground Clamp Meter Rugged carrying case with belt, resistance test loop, 9 V battery, users manual Take leakage current or ground measurements on grounding systems with multiple parallel grounding electrodes (transformers, utility grounds, transmission tower grounds, and communication ground systems). EARTH GROUND TESTERS