Sonel MPI-530-IT - Measuring Soil Resistivity

OPERATING MANUAL MPI-530-IT version 1.06
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3.5.5 Measuring soil resistivity
For soil resistivity measurements - used as preparation for the designing the earthing system or
in geology measurements - a separate function is provided: measurement of soil resistivity.. This
function is identical to 4-pole measurement of earth resistance, however, it contains an additional
procedure of entering the distance between the electrodes. The measurement result is the resistivity
value, calculated automatically according to the following formula: ρ = 2LR
E
, applied in Wenner
method. This method assumes equal distances between the electrodes.
Four probes driven into the ground along one line and in equal distances must be connected as
shown in the picture above.
Settings
Set the rotary switch of function selection at R
E
posi-
tion.
To select the resistivity measurement, press F2
.
Use and to select Resistivity, confirm by
pressing ENTER.