Grounding resistance meter MRU-30

Available measurements:

of the grounding by the technical method 3P / 4P,
grounding by the technical method with use of additional clamps,
of the continuity of equipotential and protective connections with automatic zeroing function with a current of 200 mA,
grounding by the two-clamp method without the need to place the auxiliary electrodes,
of the soil resistivity.