Technical Data; Basic Data - Sonel MRU-200 User Manual


The specified accuracy applies to meter terminals.

The abbreviation „m.v." in the accuracy definition means the measured value.

10.1 Basic data

Interference voltage measurement U
Range
0...100 V

measurement for f

frequency of measurements – minimum two measurements/s
Interference frequency measurement f
Range
15...450 Hz

measurement for interference voltage >1 V (for interference voltage <1 V the following is
displayed: f=---)
Measurement of resistance of protective conductors and equipotential bonding (2P)
The measurement method: in accordance with IEC 61557-5
Range of measurement in accordance with IEC 61557-4: 0,045  ... 19,99 k
Range
0,000...3,999 Ω *
4,00...39,99 Ω
40,0...399,9 Ω
400...399 9Ω
4,00...19,99 kΩ
* In 0,000...0,045 Ω range uncertainty is unspecified.
Measurement of earth resistance – 3-pole method (R
The measurement method: 3-pole, in accordance with IEC 61557-5
Range of measurement in accordance with IEC 61557-5: 0,100  ... 19,99 k
Range
0,000...3,999 Ω *
4,00...39,99 Ω
40,0...399,9 Ω
400...3999 Ω
4,00...19,99 kΩ
* For 3-pole method in 0,000...0,045 Ω range uncertainty is unspecified.
Measurement of resistance of auxiliary electrodes R
Range
0...999 Ω
1,00...9,99 kΩ
10,0...19,9 kΩ

10 Technical data

(RMS)
N
Resolution
15...450 Hz
N
N
Resolution
Resolution
Resolution
Resolution
MRU-200 ● MRU-200-GPS – USER MANUAL
1 V
1 Hz
0,001 Ω
0,01 Ω
0,1 Ω
1 Ω
0,01 kΩ
3P), 4-wire method (R
E
0,001 Ω
0,01 Ω
0,1 Ω
1 Ω
0,01 kΩ
and R
H S
1Ω
0,01 kΩ ±(5% (R
0,1 kΩ
Accuracy
±(2% m.v. + 3 digits)
Accuracy
±(1% m.v. + 2 digits)
Accuracy
±(2% m.v. + 4 digits)
±(2% m.v. + 2 digits)
±(5% m.v. + 2 digits)
4P)
E
Accuracy
±(2% m.v. + 4 digits)
±(2% m.v. + 2 digits)
±(5% m.v. + 2 digits)
Accuracy
+R +R ) + 8 digits)
E H S
51