MPI-530 Multifunction Electrical Installation Meter WMGBMPI530

$3,600.00 including GST


MPI-530 meter is a multi-functional instrument for electric shock protection measurements including the option of various methods for measuring earthing and earthing resistance. Additionally the meter enables its user to analyse power supply parameters, records and displays them on its screen. The instrument automatically measures the insulation resistance in a socket and in 3 -, 4 – and 5-wire cables when used with AutoISO-1000C adapter. Measurement results may be continuously verified, depending on user’s demand or according to binding regulations. Memory of the instrument may store tens of thousands of measurements allowing users to store them in a structure of a protocol and describe individual measurement points.


 Measurement of short circuit loop impedance:

  • impedance measurement with resolution 0,001 Ω and 23 A current (44 A phase-to-phase) – short-circuit resistor RZW=10 Ω,
  • measurement range: 95…440 V, frequency 45…65 Hz,
  • measurement of short circuit loop impedance with resolution 0,01 Ω, in protected systems without tripping the RCD’s with IΔn ≥ 30 mA,
  • automatic calculation of short-circuit current, differentiating between phase-to-phase and phase-to-neutral voltage,
  • measurements using UNI-Schuko plug with measurement triggering  button (also when L and N leads are exchangeable) or 1,2 m, 5 m, 10 m, 20 m test leads, with optional use of  3-phase socket adapters (AGT),
  • selection of installation protections and automatic evaluation of measurements results.

Tests of residual current devices (RCD), types AC, A, F, B and B+:

  • measurement of general, short-time delay and selective RCD’s with rated residual current of 10, 30, 100, 300, 500 and 1000 mA,
  • automatic measurement of all RCD parameters (when the START button is pressed, the meter performs the whole measurement cycle, including the.

L-PE short circuit loop impedance measurement with 15 mA current),

  • user selected waveform of forced leakage current: sinusoidal (start from increasing or decreasing edge), unidirectional pulsating (positive or negative), unidirectional pulsating with DC bias (positive and negative), direct (positive and negative),
  • measurement of tripping current IA using the ramp current,
  • measurement of tripping time tA at  ½IΔn, 1IΔn, 2IΔn and 5IΔn ,
  • measurement of touch voltage UB and protective conductor resistance RE without the RCD tripping,
  • detection that L and N conductors are switched in the socket; will not affect the measurement,
  • measurement of tripping current  IA and actual tripping time tAI at single activation of RCD,
  • measurement for 95…270 V voltage.

Insulation resistance measurements:

  • test voltage values: 50 V, 100 V,  250 V,  500 V  and 1000 V,
  • insulation resistance measurements up to 10 GΩ,
  • in-socket measurements using the UNI-Schuko adapter,
  • meter is protected against voltage on the tested object and voltage appearing during the measurement,
  • auto-discharge of the object after the measurement,
  • automatic measurement of all resistance combinations in three-, four- and five core leads using the additional AutoISO-1000C adapter,
  • acoustic signalling of five-second periods to enable determining the time profile during the insulation resistance measurements.

Low-voltage resistance measurement of equipotential and protective bonding:

  • continuity measurement  of protective conductor with  ≥200 mA current in both directions,
  • low current measurement  with sound signal,
  • autocalibration of test leads – leads of any length can be used.

Earth resistance measurements:

  • measurement with 3- and 4-pole methods with 2 additional electrodes,
  • measurement with the 3-pole method with and additional clamp,
  • measurement with 2-clamp method.

Soil resistivity measurements.
Illuminance measurements.
Quick check of PE connection correctness.
Measurement and recording of voltage, frequency, AC, cosφ and power (active,reactive and apparent), voltage and current harmonics up to 40,  THD.
Checking reactive phase sequence and motor direction of rotation.
Innovative memory with possibility of description of: measurement points, facilities, names of customers.
Power supply from rechargeable of disposable batteries (optional)
The meter conforms to EN 61557.

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 rangeResolutionAccuracy
0,000…19,999 Ω0,001 Ω±(5% m.v. + 0,03 Ω)
20,00…199,99 Ω0,01 Ω±(5% m.v. +0,3 Ω)
200,0…1999,9 Ω0,1 Ω±(5% m.v. + 3 Ω)

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 rangeResolutionAccuracy
0,00…19,99 Ω0,01 Ω±(6% w.m. + 10 digits)
20,0…199,9 Ω0,1 Ω±(6% w.m. + 5 digits)
200…1999 Ω1 Ω

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 kΩ for test voltage 50 V
  • 0,56 Ω…1,99 kΩ for test voltage 25 V
Display rangeResolutionAccuracy
0,00…9,99 Ω0,01 Ω±(2% m.v. + 4 digits)
10,0…99,9 Ω0,1 Ω±(2% m.v.. + 3 digits)
100…999 Ω1 Ω
1,00…1,99 kΩ0,01 kΩ
  • 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)

Display rangeResolutionAccuracy
0,00…9,99 Ω0,01 Ω±(8% m.v. + 4 digits)
10,0…99,9 Ω0,1 Ω
100…999 Ω1 Ω
1,00…1,99 kΩ0,01 kΩ
  • measurement with additional current clamp
  • interference current measuring range: up to 9,99 A

Selective earth measurement with two clamps

Display rangeResolutionAccuracy
0,00…9,99 Ω0,01 Ω±(10% m.v. + 4 digits)
10,0…99,9 Ω0,1 Ω
100…999 Ω±(20% m.v. + 4 digits)
  • measurement with transmitting and receiving clamps
  • interference current measuring range: up to 9,99 A

Soil resistivity mesurement (ρ)

Display rangeResolutionAccuracy
0,0…99,9 Ωm0,1 ΩmDepending on accuracy
of RE measurement
100…999 Ωm1 Ωm
1,00…9,99 Ωm0,01 kΩm
10,0…99,9 kΩm0,1 kΩm
  • measurement with Wenner’s method
  • distance settable in metres or feet
  • distance range: 1…30 m (1…90 feet)

Phase sequence indication

  • Phase sequence indication: conforming, non-conforming
  • Mains voltage range UL-L: 100…440 V (45…65 Hz)
  • Display of phase-to-phase voltage values

Measurements of RCD parameters (voltage range 95…270 V):
RCD tripping test and measurement of tripping time tA (for tA measurement function)

RCD typeCurrentRange ResolutionAccuracy
General and
0,5*IΔn0…300 ms1 ms± (2% m.v. + 2 digits)

(for RCD with IΔn=10 mA
and 0,5xIΔn uncertainty:
±(2% m.v. + 3 digits)

2*IΔn0…150 ms
5*IΔn0…40 ms
Selective0,5*IΔn0…500 ms
2*IΔn0…200 ms
5*IΔn0…150 ms

accuracy of residual current application: for 0,5*IΔn:-8…0% for 1*IΔn, 2*IΔn, 5*IΔn: 0…8%

Measurement of RCD tripping current IA for sinusoidal residual current (AC type)

Meas. range ResolutionTest currentAccuracy
10 mA3,3…10,0 mA0,1 mA0,3 x IΔ..1,0 x IΔ± 5%IΔn
30 mA9,0…30,0 mA
100 mA33…100 mA1 mA
300 mA90…300 mA
500 mA150…500 mA
1000 mA330…1000 mA

The measurement can be started from positive or negative half-period of forced leakage current

Measurement of RCD tripping current IA for unidirectional residual current and unidirectional
with the 6 mA DC bias (type A)

Meas. rangeResolutionTest currentAccuracy
10 mA3,5…20,0 mA0,1 mA0,35 x IΔn..2,0 x IΔn±10%IΔn
30 mA10,5…42,0 mA0,35 x IΔn..1,4 x IΔn
100 mA35,0…140 mA1 mA
300 mA105…420 mA
500 mA175…700 mA

Measurement for positive or negative half-periods of forced leakage current

Measurement of RCD tripping current IA for direct residual current (type B)

Meas. range Resolution Test current Accuracy
10 mA2,0…20,0 mA0,1 mA0,4 x IΔn..2,0 x IΔn±10%IΔn
30 mA6…60 mA1 mA
100 mA20…200 mA
300 mA60…600 mA
500 mA100…1000 mA

Measurement for positive or negative half-periods of forced leakage current
IΔn – rated residual current

Insulation resistance measurements
Measuring range acc. to IEC 61557 – 2:

  • for UN = 50 V: 50 kΩ…250 MΩ
  • for UN = 100 V: 100 kΩ…500 MΩ
  • for UN = 250 V: 250 kΩ…999 MΩ
  • for UN = 500 V: 500 kΩ…2 GΩ
  • for UN = 1000 V: 1,000 MΩ…9,99 GΩ
Display range*)ResolutionAccuracy
0…1999 kΩ1 kΩ±(3% m.v. + 8 digits)
2,00…19,99 MΩ0,01 MΩ
20,0…199,9 MΩ0,1 MΩ
200…999 MΩ1 MΩ
1,00…9,99 MΩ0,01 GΩ±(4% m.v. + 6 digits)

*) not greater than measuring range for given voltage

Low-voltage measurement of resistance and circuit continuity
Measurement of protective conductor continuity with the ±200 mA current

0,00…19,99 Ω0,01 Ω±(2% m.v. + 3 digits)
20,0…199,9 Ω0,1 Ω
200…400 Ω1 Ω
  • voltage on open terminals: 4…9 V
  • output current at R < 2 Ω: min. 200 mA
  • autocalibration of test leads
  • measurements for both current polarities

Illuminance measurement

0,1…99,9 lx0,1 lx±(5% m.v. + 2 digits)
100…999 lx1 lx
1,00…9,99 klx0,01 lx
10,0…19,9 klx0,1 lx

– – measurement in luxes (lx) or feet-candles (fc)



  • Voltage measurement ULN: 0…500 V
  • Frequency range of measured voltages: 45,0…65,0 Hz
  • Frequency measurement range for 50…500 V voltages: 45,0…65,0 Hz (basic uncertainty max. ± 0,1% m.v. + 1 digit)
  • cosφ measurement: 0,00…1,00 (resolution 0,01)
  • Measurement and recording in single-phase system


Current measurement (True RMS)

C-3, C-60,0…99,9 mA0,1 mA±(5% m.v. + 3 digits)
100…999 mA1 mA
F-1, F-2, F-3
1,00…9,99 A0,01 A±(5% m.v. + 5 digits)
(C-3, C-6)
±(0,1% In + 2 digits)
(F-1, F-2, F-3)
10,0…99,9 A0,1 A
100…999 A1 A
F-1, F-2, F-31,00…3,00 kA0,01 kA

* the accuracy of current clamps must also be taken into account

Measurement of active power P, reactive power Q, apparent power S and cosφ

[W], [VA], [var]
[W], [VA], [var]
0…9991±(7% m.v. + 3 digits)
1,00…9,99 k0,01 k
10,0…99,9 k0,1 k±(7% m.v. + 5 digits)
100…999 k1 k
1,00…1,50 M0,01 M
  • voltage range: 0…500 V
  • current range: 0…1000 A (3000 A)
  • mains rated frequency fn: 50 Hz, 60 Hz

Voltage harmonics measurement

RangeResolutionNr harm.Accuracy
0,0…500 V0,1 (1*) V1,2,…15±(5% m.v. + 3 digits)
16,…40±(5% m.v. + 10 digits)
  • in addition display of h02…h40 values as percent of h01 (up to 999%)

*) from 300 V to 500 V

THD (in relation to the 1 st harmonics)

THD-F voltage
(h = 2…40)
for URMS ≥ 1% Unom
THD-F current
(h = 2…40)
for IRMS ≥ 1% Inom


NOTE: “m.v.” means “ measured value”

The instruments conforms to:

  • EN 61010 – 1 (general safety requirements)
  • EN 61010 – 031 (detailed safety requirements)
  • EN 61326 (electromagnetic compatibility)
  • EN 61557 – 10 (requirements for combined instruments)
  • IEC 60364 – 6-61 / HD 60364 – 6 (measurements – verification)
  • IEC 60364 – 4-41 / HD 60364 – 4-41 (measurements – protection against electric shock)
  • EN 04700 (measurements – acceptance tests)
  • EN 12464 (lighting of work places)
  • DIN VDE 0100
  • DIN VDE 0413
  • BS 7671


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