taking care not to form loops, and to avoid placing the cables near or parallel to
metallic conductors (cables, rails, fences, etc.).
5.
Start the measurement by pressing the START/STOP button.
To display the measurement parameters, press DISPLAY several times.
The device displays the following parameters:
ρ
, R
W
S-ES
To measure the resistances of the auxiliary electrodes H (Z), S (Y), ES (Xv) and E
(X), or if the resistance of the electrodes is too high (see § 10.1), start the measure-
ment by a long press of the START/STOP button.
R
and R
P-E
P-H
> 2s
5.6.5
Schlumberger Method
1.
Set the switch to
2.
Place electrodes S (Y) and ES (Xv) at a distance A apart, then place elec-
trodes H (Z) and E (X) in the same straight line, at a distance d measured from
the midpoint of distance A. Distance d must be between 2 and 30m.
3.
Drive the electrodes to a depth p of not more than 1/20 of d.
4.
Connect the cables to the electrodes, then to terminals H (Z), S (Y), ES (Xv),
and E (X).
Ground Resistance Tester Model 6471
Shop for AEMC products online at:
, d, U
, I
, U-Act (U
S-ES
H-E
, then R
and R
P-ES
P-S
ρ
H
W
d
S
d
ES
d
E
AUTO
.
ShopAEMC
www.
ρ
H
W
d
S
d
ES
d
E
ρ
= 2.π.d.R
W
and its frequency, U
S-ES
will be displayed.
Ω
k
m
kΩ
kΩ
.com
Ω
k
m
Ω
m
AUTO
S-ES
and its frequency).
H-E
ρ
H
W
d
S
d
ES
d
E
AUTO
1.888.610.7664
Ω
k
m
kΩ
kΩ
41