The MPI-520 multifunction meter is dedicated to perform diagnosis of electrical installation according to IEC 61557 standards. Digital meter MPI-520 is designed to measure impedance of a short cicuit loop also without triggering RCD, parameters of RCD, insulation resistance, earthing resistance, continuity and also for phase sequence testing. Furthermore to measure and logging of AC voltage and current, frequency and power.
Wide range of standard accessories enable to perform all necessary measurements and safety test. Highly professional portable multifunction meter with memory of measured parameters.
MPI-520 is equipment to perform complete test and verify on electrical installations according to the most common safety standards (IEC 61557, VDE 0100, BS7671).

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Possible measurements :

Short-circuit loop measurement:

  • impedance measurement with 23 A current (44 A phase-to-phase) - short-circuit resistor R=10 Ω,
  • measurement range: 95...440 V, frequency 45...65 Hz,

Short-circuit loop measurement with resolution 0,01 Ω, in distribution network without tiggering RCD (IΔn≥30 mA):

  • automatic calculation of short-circuit, detection of phase voltage and phase-to-phase voltage,
  • additional UNI-Schuko plug for automatic measurement, AGT adapter for 3 phase network measurement.

Testing of general and selective RCD with the rated differential current of 10,30,100,300,500 and 1000 mA. (Type AC, A and B).

Measurement of insulation resistance:

  • with test voltage 250 V, 500 V, 1000 V,
  • measurement range up to 3 GΩ,
  • UNI-Schuko plug for insulation measurement,
  • automatic discharging after measurement,
  • automatic measurement of all resistences in 3,4,5-wire cables using optional adapter AUTO-ISO,
  • acoustic signals in 5 sec intervals for insulation resistance characteristic,
  • safety measurement - protection against overvoltage.

Measurement of earthing resistance.

Bi-directional testing of PE wire continuity using 200 mA current.

  • Autocalibration of test leads.

Phase sequence testing.

Memory is divided into 10 memory banks each of them containing 99 memory cells.

Battery charge indicator.

AUTO-OFF function.

USB interface.

Short-circuit loop impedance measurement Z L-PE , Z L-N , Z L-L 
Measurement using 23/40 A current measurement range in accordance with IEC 61557: 0,13...1999,9 Ω 
(for 1,2 m lead ):

Range Resolution Accuracy
0,00...19,99 Ω 0,01 Ω ±(5% m.v. + 3 dgt)
20,0...199,9 Ω 0,1 Ω
200...1999 Ω 1 Ω

rated voltage: 95...270 V (for Z L-PE i Z L-N ) and 95...440 V (for Z L-L
frequency: 45...65 Hz

Short-circuit loop impedance measurement Z L-PE RCD 
Measurement using 15 mA current measurement range in accordance with 
IEC 61557: 0,50...1999,9 Ω

Range Resolution Accuracy
0,00...19,99 Ω 0,01 Ω ±(6% m.v. + 10 dgt)
20,0...199,9 Ω 0,1 Ω ±(6% m.v. + 5 dgt)
200...1999 Ω 1 Ω

rated voltage: 95...270 V 
frequency: 45...65 Hz

Measurement of earthing R
Rated voltage in accordance with IEC 61557 - 5:

  • 0,5 Ω…1,99 kΩ for 50 V
  • 0,56 Ω…1,99 kΩ for 25 V
Range Resolution Accuracy
0,00...9,99 Ω 0,01 Ω ±(2% m.v. + 4 dgt)
10,0...99,9 Ω 0,1 Ω ±(2% m.v. + 3 dgt)
100...999 Ω 1 Ω
1,00...1,99 kΩ 0,01 kΩ

Insulation resistance measurement 
Measurement range in accordance with IEC 61557 - 2:

  • for U N = 50 V: 50 kΩ...250 MΩ
  • for U N = 100 V: 100 kΩ...500 MΩ
  • for U N = 250 V: 250 kΩ...1 GΩ
  • for U N = 500 V: 500 kΩ...2 GΩ
  • for U N = 1000 V: 1 MΩ...3 GΩ
Display range* ) Resolution Accuracy**)
0...1999 kΩ 1 kΩ ±(3% m.v. + 8 dgt)
2,00...19,99 MΩ 0,01 MΩ
20,0...199,9 MΩ 0,1 MΩ
200...999 MΩ 1 MΩ
1,00...3,00 GΩ 0,01 GΩ ±(4% m.v. + 6 dgt)

*) limited to measurement range. 
**) with UNI-Schuko additional error ±2%.

Phase sequence

  • phase sequence indicator: forward, reverse
  • mains voltage range UL-L: 100...440 V (45…65 Hz) UL-L: 100...440 V (45...65 Hz)
  • display of pase-to-phase voltages

Measurement of the active P, passive Q and apparent S power and cosφ

  • Range of voltages ULN: 0...440 V
  • Nominal frequency of the network: 45...65 Hz
  • frequency measurement for voltage 50...440 V in range 45,0...65,0 Hz (accuracy max. ± 0,1%m.v. + 1 digit)

- measurement cosφ: 0,00...1,00 (resolution 0,01)

Low voltage test of the circuit and insulation continuity 
Test of PE wire continuity using a ±200 mA current

Range Resolution Accuracy
0,00...19,99 Ω 0,01 Ω ±(2% m.v. + 3 dgt)
20,0...199,9 Ω 0,1 Ω
200...400 Ω 1

Voltage on open terminals: 4…9 V 
Test current at R<2 Ω: min. 200 mA at rated battery voltage 
Autocalibration of test leads 
Measurements for both polarizations of the current

RCD trigger and response time test t A (for t A mode) Measurement ranges 
in accordance with IEC 61557: 0 ms ... up to the upper bound of the displayed value

Breaker Type Test Current
Multiplier
Measurement
Range
Resolution Accuracy
Standard 0,5*I Δn 0...300 ms

1 ms

± (2% m.v. + 2 dgt)

1*I Δn
2*I Δn 0...150 ms
5*I Δn 0...40 ms
Selective 0,5*I Δn 0...500 ms
1*I Δn
2*I Δn 0...200 ms
5*I Δn 0...150 ms

Precision of the differential current: for 0,5*I Δn :-8...0% dla 1*I Δn , 2*I Δn , 5*I Δn : 0...8%

Measurement of the RCD triggering current (I A ) for sine waveform testing current

Selected
Current
Range Resolution Test
Current
Accuracy
10 mA 3,3...10,0 mA 0,1 mA 0,3xI Δ ..1,0xI Δ ± 5%I Δn
30 mA 9,0...30,0 mA
100 mA 33...100 mA 1 mA
300 mA 90...300 mA
500 mA 150...500 mA
1000 mA 330...1000 mA 1 mA

It is possible to start the measurement from the positive or negative half of the forced leaking current

Measurement of the RDC triggering current (I A ) for a unidirectional half period sine 
waveform test current with a 6 mA direct current offset

Selected
Current
Range Resolution Test
Current
Accuracy
10 mA 4...20,0 mA 0,1 mA 0,4xI Δn ..2,0xI Δn ±10%I Δn
30 mA 12,0...42,0 mA 0,4xI Δn ..1,4xI Δn
100 mA 40,0...140 mA 1 mA
300 mA 120...420 mA
500 mA 200...700 mA
  • a measurement is possible for a positive or negative forced leakage current

Measurement of the RCD triggering current (I A ) for direct testing current

Selected
Current
Range Resolution Test
Current
Accuracy
10 mA 4,0...20,0 mA 0,1 mA 0,4xI Δn ..2,0xI Δn ±10%I Δn
30 mA 12,0...60,0 mA 1 mA
100 mA 40...200 mA
300 mA 120...600 mA
500 mA 200...1000 mA
  • a measurement is possible for a positive or negative forced leakage current

„m.v.” measured value.

Complete device information
Manufacturer site:

Link

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Sonel MPI-520 Multifunction Electrical Installations Meter

  • Brand: Sonel S.A.
  • Model: MPI-520
  • Product Number: WMGBMPI520
  • Availability: 1 to 7 days order processing
  • 0.00€


Tags: Sonel, MPI-520, Multifunction, Electrical, Installations, Meter