The EI-162AC is used along with the Fluke 1623 or 1625 to perform selective and stakeless testing.
- Selective testing: using one clamp along with earth ground stakes to provide earth ground loop resistance values for one earth ground electrode.
- Stakeless testing: using two clamps to perform earth ground loop resistance measurement with out stakes.
Both test have the advantage of providing measurements with no disconnection from the grounding system.
The Fluke EI-162AC has a 50.8 mm (2-inch) inner diameter.