MI 3102(H) BT
Eurotest
XE
Technical specifications
97
10.8.3
Specific earth resistance measurements
Measuring range (
m)
Resolution (
m)
Accuracy
0.0
99.9
0.1
See accuracy note
100
999
1
1.00 k
9.99 k
0.01 k
10.0 k
99.9 k
0.1 k
100 k
9999 k
1 k
Measuring range (
ft)
Resolution (
ft)
Accuracy
0.0
99.9
0.1
See accuracy note
100
999
1
1.00 k
9.99 k
0.01 k
10.0 k
99.9 k
0.1 k
100 k
9999 k
1 k
Principle:
= 2·
·distance·Re,
with Re as measured resistance in 4-wire method.
Accuracy note:
Accuracy of the specific earth resistance result depends on measured resistance Re and
is as follows:
Measuring range (
)
Accuracy
1.00
1999
5 % of measured
2000
19.99k
10 % of measured
>20k
20 % of measured
Additional error:
See
Earth resistance three-wire method.
