FLUKE 1625-2 User Manual for the Fluke 1625-2 GEO Earth Ground Tester, -10 to 50°C

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List of Figures

Figure Title Page

1. External Current Transformer EI-162BN ................................................................ 6

2. Battery Insertion ..................................................................................................... 14

3. Method for Earthing Resistances Measurement .................................................... 20

4. 3-Pole/4-Pole Measurement of Earthing Resistance - Process ............................. 21

5. Measurement of Single Earth Electrode Resistances in Mesh Operated

Earthing Systems ................................................................................................... 23

6. 3-Pole/4-Pole Measurement of Single Earth Electrode Resistances ..................... 24

7. Earthing Resistance without Disengaging the Overhead Earth Wire ..................... 26

8. Correcting Clip-on Transformer Errors ................................................................... 29

9. Clip-on Transformer Connection ............................................................................ 30

10. Compensation of Earth Electrode Connecting Lead .............................................. 31

11. Measurement of Soil Resistivity ............................................................................. 32

12. Resistance Measurement (R~) .............................................................................. 34

13. Resistance Measurement (R) ............................................................................. 35

14. Compensation of Measuring Lead Resistance ...................................................... 36

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FLUKE 1625-2 GEO Earth Ground Tester, -10 to 50°C