MPI-525 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, 2500 V,
    • measurement range up to 10 GΩ,
    • 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,
    • elapsing T 1 , T 2 , T 3 times (0...600 s) form measurement of absorption coefficients (DAR, PI or Ab 1 , Ab 2 )
    • 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.
Rated operational conditions: 
  • operation temperature 0...+50°C
Electric security: 
  • type of insulation: double, according to PN-EN 61010 - 1and IEC 61557, EMC 
  • measurement category: IV 300 V acc. to PN-EN 61010 - 1 
  • protection class acc. to PN-EN 60529: IP54
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 (forZ 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...1999 Ω

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 
- for U N = 2500 V: 2,5 MΩ...9,99 GΩ

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)
1,00...9,99 GΩ 0,1 GΩ

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

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

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 (IA ) 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:

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Sonel MPI-525 Multifunction Electrical Installations Meter

  • Brand: Sonel S.A.
  • Model: MPI-525
  • Product Number: WMGBMPI525
  • Availability: 2 to 14 days order processing
  • 0.00€


Tags: Sonel, MPI-525, Multifunction, Electrical, Installations, Meter