MI 3290 Earth Analyser
Tests and Measurements
83
Notes:
Consider displayed warnings when starting the measurement!
High noise currents and voltages in earth could influence the measurement results. The
tester displays the
“noise” warning in this case.
Notes (Probes):
High impedance of S and H probes could influence the measurement results. In this
case,
“Rp” and “Rc” warnings are displayed. There is no pass / fail indication in this
case.
Probes must be placed at a sufficient distance from the measured object.
Note to SER/PAR Model parameter (Example):
Series
– Activates the series equivalent circuit model. Re value is derivate based on the
series model. Test objects description and schematics wiring diagram:
Test Object
Re
Lo
Rc
Rp
10
100 µH
200
200
Test
Results
Re
Ze
Rc
Rp
Ie
ϕ
Series
model
10,6
18,95
201
201
49,7 mA 56°
R
e
Lo
Rp
Rc
H
S
E
S
er
ie
s m
od
el
Parallel
– Activates the parallel equivalent circuit model. Re value is derivate based on the
parallel model. Test objects description and schematics wiring diagram:
Test Object
Re
Lo
Ro
Rc
Rp
10
100 µH
1
200
200
Test
Results
Re
Ze
Rc
Rp
Ie
ϕ
Parallel
model
9,8
8,20
201
201
50,1 mA 33°
R
e
Lo
R
o
Rp
Rc
H
S
E
P
ar
all
el
m
od
el
