ETCR ETCR2000+ Manual page 26

So, if the measurement value of the Meter is smaller than the
allowable value of the grounding resistance, then the two
grounding bodies are qualified for grounding resistance.
(2) Three-Point Method
As shown in the figure below, in the vicinity of the measured
grounding body R
better grounding state R
First, link R and R
A
reading R .
1
Second, have R
Use the Meter to get the second reading R
Third, have R
Use the Meter to get the third reading R
find two independent grounding bodies of
A,
and R
B
with a test line; use the Meter to get the first
B
and R linked up, as shown in the following figure.
B C
and R linked up, as shown in the following figure.
C A
C.
.
2
.
3
-23-