MPI-520
Index: WMGBMPI520
Multifunction Electrical Installations Meter
Description
Technical Specification
Files
  • Description
    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).

  • Technical Specification

    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 ZL-PE, ZL-N, ZL-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 ±(5% m.v. + 3 dgt)
    200...1999 Ω 1 Ω ±(5% m.v. + 3 dgt)
    • rated voltage: 95...270 V (for ZL-PE i ZL-N) and 95...440 V (for ZL-L)
    • frequency: 45...65 Hz

     

    Short-circuit loop impedance measurement ZL-PERCD
    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 ±(6% m.v. + 5 dgt)
    • rated voltage: 95...270 V
    • frequency: 45...65 Hz

     

    Measurement of earthing RE
    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 ±(2% m.v. + 3 dgt)
    1,00...1,99 kΩ 0,01 kΩ ±(2% m.v. + 3 dgt)

     

    Insulation resistance measurement
    Measurement range in accordance with 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...1 GΩ
    • for UN = 500 V: 500 kΩ...2 GΩ
    • for UN = 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 ±(3% m.v. + 8 dgt)
    20,0...199,9 MΩ 0,1 MΩ ±(3% m.v. + 8 dgt)
    200...999 MΩ 1 MΩ ±(3% m.v. + 8 dgt)
    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 ±(2% m.v. + 3 dgt)
    200...400 Ω 1 ±(2% m.v. + 3 dgt)
    • 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 tA (for tA 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*IΔn 0...300 ms 1 ms ± (2% m.v. + 2 dgt)
    Standard 1*IΔn 0...300 ms 1 ms ± (2% m.v. + 2 dgt)
    Standard 2*IΔn 0...150 ms 1 ms ± (2% m.v. + 2 dgt)
    Standard 5*IΔn 0...40 ms 1 ms ± (2% m.v. + 2 dgt)
    Selective 0,5*IΔn 0...500 ms 1 ms ± (2% m.v. + 2 dgt)
    Selective 1*IΔn 0...500 ms 1 ms ± (2% m.v. + 2 dgt)
    Selective 2*IΔn 0...200 ms 1 ms ± (2% m.v. + 2 dgt)
    Selective 5*IΔn 0...150 ms 1 ms ± (2% m.v. + 2 dgt)

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

     

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

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

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

     

    Measurement of the RDC triggering current (IA ) 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 0,4xIΔn..2,0xIΔn ±10%IΔn
    30 mA 12,0...42,0 mA 0,1 mA 0,4xIΔn..1,4xIΔn ±10%IΔn
    100 mA 40,0...140 mA 1 mA 0,4xIΔn..2,0xIΔn ±10%IΔn
    300 mA 120...420 mA 1 mA 0,4xIΔn..1,4xIΔn ±10%IΔn
    500 mA 200...700 mA 1 mA 0,4xIΔn..1,4xIΔn ±10%IΔn
    • 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 0,4xIΔn..2,0xIΔn ±10%IΔn
    30 mA 12,0...60,0 mA 1 mA 0,4xIΔn..2,0xIΔn ±10%IΔn
    100 mA 40...200 mA 1 mA 0,4xIΔn..2,0xIΔn ±10%IΔn
    300 mA 120...600 mA 1 mA 0,4xIΔn..2,0xIΔn ±10%IΔn
    500 mA 200...1000 mA 1 mA 0,4xIΔn..2,0xIΔn ±10%IΔn
    • a measurement is possible for a positive or negative forced leakage current

    „m.v.” measured value.

  • Files
    • Changes in 2.94.1 version.

      • Fixed a rare issue of showing RCD tripping current, despite that breaker has not tripped.
      • Fixed lack of indication of voltage Ub in the measurement of the RCD.
      • Fixed problem of short circuit loop impedance measurement at 60 Hz and 115 V.
      • Fixed a problem with the measurement of certain RCD type B for time ta x 5.

      Changes in 2.93.1 version.

      • Improved meter's immunity in measurement of short circuit loop.

      Changes in 2.92.1 version.

      • Increased voltage measurement Ub to 99.9 V.
      • Fixed minor typing errors.

Extra accessories