MRU-200-GPS OPERATING MANUAL Version 1.06
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Use buttons and to select the
type of clamp and press
ENTER
.
Notes:
- Current measurements are continuous and there is no possibility of them being saved.
- Flexible Rogowski current probe F-1 is used for measurement of current > 1A.
3.10 Earth resistivity measurements
Earth resistivity measurements
are used to make preliminary measurements for the design of
earth ground system installations, or for geological studies. The function is metrologically identical to
the four-pole earth ground resistance measurement, but includes an additional procedure for storing
the distance between the electrodes. The result gives the resistivity value which is calculated auto-
matically in accordance with the following formula:
ρ = 2
LR
E
, (
Wenner’s measurement method.) The
method assumes equal distances between electrodes.
Turn the meter on.
Set the rotary
function selector switch at
ρ
.
E
L
L
L
S H
ES
