MI 3100 s, MI 3100 SE
Eurotest
EASI
Technical specifications
79
10.7 Resistance to earth
10.7.1 Standard earthing resistance measurement
– 3-wire
measurement
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.
