8 Digital Ground Resistance Tester Model 4500C2P2P1C167 8 9 10111213141615543212.3 Control Features1. Test button2. Input Terminal (Z)-(C2)3. Input Terminal (Y)-(P2)4. Input Terminal (Xv)-(P1)5. Shorting strip6. Input Terminal (X)-(C1)7. Incorrect measurement indicator8. Low battery indicator9. Display10. Battery charge indicator11. Supply voltage indicator12. Jack for power supply cord13. Connecting terminals for power supply from external battery(12VDC)14. Range selector switch15. Test Current selector switch16. Adhesive label (C-1, P-1, P-2, C-2) supplied with each instrumentFigure 3