Amprobe DMIII-Multitest Power-Quality-Recorder - Manual (Page 34)

AMPROBE
DMIII MULTITEST
EN-32
6.4.2. Measurement procedure and results of "

" mode
1. Select

measurement mode by means of the F1 key.
2. Select the distance d between the earth rods by means the F3 and F4 keys.
The Distance measuring unit comply with Country setting (see par. 5.4).
3. Connect the 4 Black, Red, Blue and Yellow connectors of the single cables in the
corresponding input terminals of the instrument T1, T2, T3, T4.
d d d d
T1 T2 T3 T4
I1 I2 I3
(V1) (V2) (V3) ( COM)
Instrument connection for Earth resistivity measurement
4. Press the START key. The instrument starts the test.
 At the end of the test
the instrument emits a
double
beep
indicating that the
test is correctly
terminated and
displays the values to
the right.
EARTH 05.06.01
Ground Resistivity value
expressed in

m.
1.77

m
Vd= 1V
Test:04
 AVG=0.74 
 DIST= 2m 
Voltage value of electrical
noise
Number of Test
Average Value of Ground
Resistivity calculated over the
Number of Test displayed.
FUNC CLR  
"

" Working mode
5. The instrument will show automatically the Average value of the Ground Resistivity
calculate over the tests performed. Press F2 to RESET this value and the number of
Test.
This result can be stored by pressing the SAVE key twice (refer to paragraph 9.1).
START
STOP