Máy đo điện trở đất và điện trở suất Sonel MRU-30
Measurement of interference voltage UN (RMS)
Range |
Resolution |
Accuracy |
0...100 V |
1 V |
±(10% m.v. + 1 digit) |
Measurement of continuity of equipotential bondings and protective conductors (Rcont)
measurement range to IEC 61557-4:2007: 0,13 Ω...1999 Ω
Range |
Resolution |
Accuracy |
0,00...9,99 Ω |
0,01 Ω |
±(2% m.v. + 3 digits) |
10,0...99,9 Ω |
0,1 Ω |
100...1999 Ω |
1 Ω |
• measurement current: under short circuit >200mA
• frequency of measurement current: 125 Hz (for networks 50 Hz) and 150 Hz (for networks 60 Hz)