MI 3152(H)
Eurotest
XC (2,5 kV)
Technical specifications
150
12.11
Earth – Earth resistance (3-wire measurement)
Re
– Earth resistance
Measuring range according to EN61557-5 is 2.00
... 1999
.
Measuring range (
)
Resolution (
)
Accuracy
0.00 ... 19.99
0.01
(5 % of r 5 digits)
20.0 ... 199.9
0.1
200 ... 9999
1
Max. auxiliary earth electrode resistance R
C
...........100
R
E
or 50 k
(whichever is lower)
Max. probe resistance R
P
.........................................100
R
E
or 50 k
(whichever is lower)
Additional probe resistance error at R
Cmax
or R
Pmax.
.
(10 % of r 10 digits)
Additional error at 3 V voltage noise (50 Hz) ...........
(5 % of r 10 digits)
Open circuit voltage ..................................................< 30 VAC
Short circuit current ..................................................< 30 mA
Test voltage frequency .............................................125 Hz
Test voltage shape ...................................................sine wave
Noise voltage indication threshold ...........................1 V (< 50
, worst case)
Automatic measurement of auxiliary electrode resistance and probe resistance.
Automatic measurement of voltage noise.
12.12
Earth 2 clamp – Contactless earthling resistance
measurement (with two current clamps)
Re
– Earth resistance
Measuring range (
)
Resolution (
)
Accuracy
*)
0.00 ... 19.99
0.01
(10 % of r 10 digits)
20.0 ... 30.0
0.1
(20 % of reading)
30.1 ... 39.9
0.1
(30 % of reading)
*)
Distance between current clamps > 30 cm.
Additional error at 3 V voltage noise (50 Hz) ...........
10 % of reading
Test voltage frequency .............................................125 Hz
Noise current indication ............................................yes
Low clamp current indication ....................................yes
Additional clamp error has to be considered.
