Fluke 1625 FE 1625 Users Manual - Page 55
Curve 2:
View all Fluke 1625 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 55 highlights
Earth/Ground Tester Procedure of Measurements 1 2 3 Soil restivity E A Distances of Probe edw021.eps Curve 1: As ρE decreases only deeper down, a deep earth electrode is advisable Curve 2: As ρE decreases only down to point A, an increase in the depth deeper than A does not improve the values. Curve 3: With increasing depth ρE is not decreasing: a strip conductor electrode is advisable. As measuring results are often distorted and corrupted by underground pieces of metal, underground aquifers etc, a second measurement, in which the spike axis is turned by an angle of 90 ° , is always advisable (see picture). 47
Earth/Ground Tester
Procedure of Measurements
47
Distances of Probe
Soil restivity
E
A
1
2
3
edw021.eps
Curve 1: As
ρ
E decreases only deeper down, a deep earth electrode is advis-
able
Curve 2: As
ρ
E decreases only down to point A, an increase in the
depth
deeper than A does not improve the values.
Curve 3: With increasing depth
ρ
E is not decreasing: a strip conductor elec-
trode is advisable.
As measuring results are often distorted and corrupted by underground pieces
of metal, underground aquifers etc, a second measurement, in which the spike
axis is turned by an angle of 90 ° , is always advisable (see picture).