iii 
List of Tables 
Table Title Page 
1.  1630 Earth Ground Clamp Features...................................................... 4 
2. Display Features ................................................................................... 5
 
 
List of Figures 
Figure Title Page 
1.  1630 Earth Ground Clamp Features...................................................... 4 
2. Display Features ................................................................................... 5
 
3.  Ground Resistance Measurement Principles.........................................  7 
4.  Ground Leakage Current Measurement ................................................  8 
5. Alarm Functions ................................................................................... 9 
6. Setting the Sampling Interval................................................................ 11 
7. Stored Data Display..............................................................................  12