The Fluke EI-162X Clip-On Current Transformer (Sensing) is used along with the Fluke 1623 or 1625 to perform Selective and Stakeless testing. Selective testing means using one clamp along with earth ground stakes to provide earth ground loop resistance values for one earth ground electrode. Stakeless testing uses two clamps to perform earth ground loop resistance measurements without stakes. Both tests have the advantage of providing measurement with no disconnection from the grounding sustem. Safer and quicker.
