GEOHM 5
Technical specification
35
Earth Resistance using two clamps
Display range RE (
)
Resolution (
)
Accuracy*
0,0
19,9
0,1
(10 % rdg. +2 D)
20
100
1
(20 % rdg.)
*Distance between test clamps >30 cm
Additional error at lowest noise curr. where noise curr. symbol is already displayed
(10 % of r. + 10 D)
Noise current indication starts to be displayed at
Inoise / Isignal > 100
Additional clamp error is to be considered.
Specific Earth Resistance (resistivity)
All technical data listed under four-lead method are valid, except display range table,
see adapted one below.
Display range
(
m)
Resolution (
m)
Accuracy
0,00
19,99
0,01
Consider accuracy of RE
measurement
= 2
aRE
20,0
199,9
0,1
200
1999
1
2,00 k
19,99 k
10
20,0 k
199,9 k
0.1k
(5 % rdg.)
200 k
999 k (a
8 m)
200 k
1999 k (a
8 m)
1k
Display range
(
ft)
Resolution
(
ft)
Accuracy
0,00
19,99
0,01
Consider accuracy of RE
measurement
= 2
aRE
20,0
199,9
0,1
200
1999
1
2,00 k
19,99 k
10
20,0 k
199,9 k
0.1 k
(5 % rdg.)
20 k
999 k (a
8 ft)
200 k
1999 k (a
8 ft)
1 k
Distance between test rods 1 up to 30 m or 1 up to 90 ft