HT instruments SIRIUS89N - Manual (Page 53)

SIRIUS89N
EN - 51
6.5.2. Measurement procedure and results of " ρ" mode
1. Select
ρ
measurement mode by means of the F1 key.
2. Select the distance
d between the earth rods by means the F3 and F4 keys.
3. Connect the 4 Black, Red, Green and Blue connectors of the single cables in the
corresponding input terminals of the instrument
B1, B2, B3, B4.
Instrument connection for Earth resistivity measurement
4. Press the START key. The instrument starts the test.
EARTH 05.06.01 Earth Resistivity value
expressed in
Ωm.
Voltage value of electrical
noise
Number of Test
1.77
Ωm
Vd= 1V
Test:04
ρAVG=0.74Ω
ρ DIST= 2m!
At the end of the test
the instrument emits a
double sound signal
indicating that the
test is correctly
terminated
and
displays the values
alongside.
FUNC CLR
↑ ↓
Average Value of Earth
Resistivity calculated over the
Number of Test displayed.
"
ρ" Working mode
5. The instrument will show automatically the Average value of the Earth Resistivity
calculate over the tests performed. Press
F2 to RESET this value and the number of
Test.
This result can be stored pressing the SAVE key twice (according to paragraph 9.1).
START
STOP