Thiết bị kiểm tra lắp đặt điện đa chức năng Sonel MPI-540
Measurement of short circuit loop impedance ZL-PE, ZL-N, ZL-L
Test current: 23/40 A; measuring range acc. to IEC 61557: 0,13...1999,9 Ω (for 1.2 m test lead):
Display range |
Resolution |
Accuracy |
0,000...19,999 Ω |
0,001 Ω |
±(5% m.v. + 30 digits) |
20,00...199,99 Ω |
0,01 Ω |
±(5% m.v. + 30 digits) |
200,0...1999,9 Ω |
0,1 Ω |
±(5% m.v. + 30 digits) |
- rated voltage: 95...270 V (for ZL-PE and ZL-N) and 95...440 V (for ZL-L)
- frequency: 45...65 Hz
Measurement of short circuit loop impedance ZL-PE in RCD mode
Test current: 15 mA, measuring range acc. to IEC 61557: 0,50...1999 Ω
Display range |
Resolution |
Accuracy |
0,00...19,99 Ω |
0,01 Ω |
±(6% m.v. + 10 digits) |
20,0...199,9 Ω |
0,1 Ω |
±(6% m.v. + 5 digits) |
200...1999 Ω |
1 Ω |
±(6% m.v. + 5 digits) |
- rated voltage: 95...270 V
- frequency: 45...65 Hz
Measurement of earth resistance RE with the 3p and 4p method
Measuring range acc. to IEC 61557-5: 0,50 Ω…1,99 k Ω for test voltage 50 V 0,56 Ω …1,99 k Ω for test voltage 25 V
Display range |
Resolution |
Accuracy |
0,00...9,99 Ω |
0,01 Ω |
±(2% m.v. + 4 digits) |
10,0...99,9 Ω |
0,1 Ω |
±(2% m.v. + 3 digits) |
100...999 Ω |
1 Ω |
±(2% m.v. + 3 digits) |
1,00...1,99 kΩ |
0,01 kΩ |
±(2% m.v. + 3 digits) |
- test voltage: 25 V or 50 V rms
- test current: 20 mA, sinusoidal rms 125 Hz (for fn = 50 Hz) and 150 Hz (for fn = 60 Hz)
- measurement blocked at interference voltage UN > 24 V
- maximum measured interference voltage Unmax = 100 V
- maximum resistance of auxiliary earth electrodes 50 kΩ
Selective earth resistance measurement with clamp (3p + clamp)
Measuring range acc. to IEC 61557-5: 1 Ω…1,99 kΩ
Display range |
Resolution |
Accuracy |
0,00...9,99 Ω |
0,01 Ω |
±(2% m.v. + 4 digits) |
10,0...99,9 Ω |
0,1 Ω |
±(2% m.v. + 4 digits) |
100...999 Ω |
1 Ω |
±(2% m.v. + 4 digits) |
1,00...1,99 kΩ |
0,01 kΩ |
±(2% m.v. + 4 digits) |
- measurement with additional current clamp
- interference current measuring range: up to 9,99 A