Fluke 1630-2 FC FE 1630 Users Manual - Page 13

Ground resistance measurements principle: Earth Ground Clamp Using the Clamp 1630 OFF mA A 30C0AVT FUNC REC EARTH GROUND CLAMP HOLD Rg Equivalent circuit diagram: 1630 EARTH GROUND CLAMP R1 R2 R1 R2 R3 .....Rn .....Rn HOLD mA A OFF CA3T00 V REC FUNC Rg 1630 HOLD mA A OFF CA3T00 V EARTH GROUND CLAMP Rg REC FUNC Figure 3. Ground Resistance Measurement Principles eht03f.eps 7