MPI-502

Multifunction Electrical Installations Meter

MPI 502 P V2 0

Short circuit loop parameters measurements:

  • measurements of short circuit loop impedance in networks with rated voltage: 220/380 V, 230 V/400 V, 240/415 V and frequency 45…65 Hz,
  • measurements of short circuit loop impedance with current 15 mA without tripping the circuit breaker.

Testing the RCD breakers of AC, A types:

  • testing of prompt, short-delay (general) and selective RCDs for the rated current values 10, 30, 100, 300, 500 mA,
  • IA measurement
  • RE and UB measurement without tripping the circuit breaker,
  • extended RCD test function AUTO, with measurement of ZL-PE with current 15 mA – measurement of IA and tA during one RCD tripping.

Detection of the replacement L and N in the socket and automatic conversion in the meter.

Low voltage resistance measurements of protective circuits and junctions:

  • measurement of resistance with ±200 mA current
  • calibration of test leads – possibility of using any length of test leads,
  • low current resistance measurement with accoustic signalling

Rapid check for the correct connection of PE wire using touch electrode.

Measurement of mains voltage and frequency.

Power supply from LR6 batteries or NiMH accumulators (option).

The device meets the requirements of IEC 61557 standard.

MPI-502 is equipment to perform complete test and verify on electrical installations according to the most common safety standards (IEC 61557, VDE 0100, BS7671).

Short circuit loop impedance measurement ZL-PE, ZL-N, ZL-L

 

Measurment using 7,6/13,3 A current – Measurement range according to
IEC 61557: 0,13…1999 Ω
(for 1,2 m lead) and 0,19…1999 Ω (for WS-01 and WS-04).

 

Display rangeResolutionAccuracy
0,00…19,99 Ω0,01 Ω±(5% m.v. + 3 dgt)
20,0…199,9 Ω0,1 Ω
200…1999 Ω1 Ω
  • Nominal work voltage: UnL-N/ UnL-L: 220/380 V, 230/400 V, 240/415 V,
  • Voltage operating range: 100…264 V (for ZL-PE i ZL-N) and 100…440 V (for ZL-L),
  • Nominal network frequency fn: 50 Hz, 60 Hz,
  • Max. test current: 23 A (230 V), 44 A (440 V),
  • PE terminal connection corectores check with the help of touch electrode

Readings of fault loop impedance R and fault loop reactance XL

Display rangeResolutionAccuracy
0,00…19,99 Ω0,01 Ω±(5% m.v. + 5 digits) of ZS value
20,0…199,9 Ω0,1 Ω

calculated and displayed for ZS<200 Ω.

Short circuit loop impedance ZL-PE in mode RCD – without RCD tripping
Measurement using <15 mA,current measurement range in accordance with IEC 61557: 0,51…1999,9 Ω

Display rangeResolutionAccuracy
0,00…19,99 Ω0,01 Ω±(6% m.v. + 10 dgt)
20,0…199,9 Ω0,1 Ω±(6% m.v. + 5 dgt)
200…1999 Ω1 Ω
  • test without tripping the RCD for IΔn ≥ 30 mA,
  • nominal work voltage: Un: 220 V, 230 V, 240 V,
  • voltage operating range:180…270 V,
  • frequency operating range fn: 50 Hz, 60 Hz
  • PE terminal connection correctness check with the help of touch electrode

Readings of fault loop impedance R and fault loop reactance XL (without tripping the RCD)

Display rangeResolutionAccuracy
0,00…19,99 Ω0,01 Ω±(6% m.v + 10 dgt) of ZS value
20,0…199,9 Ω0,1 Ω±(6% m.v + 5 dgt) of ZS value
  • calculated and displayed for ZS<200 Ω.

RCD parameters test (voltage range 180…270 V):
RCD tripping test and measurment of tripping time tA (for tA function)

Breaker TypeTest Current
Multiplier
RangeResolutionAccuracy
Standard0,5*IΔn0…300 ms1 ms± (2% m.v. + 2 dgt)

 

1*IΔn
2*IΔn0…150 ms
5*IΔn0…40 ms
Selective0,5*IΔn0…500 ms
1*IΔn
2*IΔn0…200 ms
5*IΔn0…150 ms
  • Precision of the differential current: 0,5*IΔn:-8…0% for 1*IΔn, 2*IΔn, 5*IΔn: 0…8%

Voltage measurement

RangeRangeAccuracy
0,0 V…299,99 V0,1 V±(2% m.v. + 6 dgt)
300 V…500 V1 V±(2% m.v + 2 dgt)

Frequency measurement

RangeRangeAccuracy
45,0 V…65,0 Hz0,1 Hz±(1% m.v. + 1 dgt)

 

Touch voltage measurement referred to the rated residual current (UB)

RangeResolutionTest
Current
Accuracy
0..9,9 V0,1 V0,4 x IΔn10% m.v. ± 5 dgt
10,0..99,9 V0…15% m.v.

Measurementof the RCD disconection current IA for sine waveform testing current

Selected
Current
RangeResolutionTest
Current
Accuracy
10 mA3,3…10,0 mA0,1 mA0,3 x IΔn…1,0 x IΔn±5%IΔn
30 mA9,0…30,0 mA
100 mA33…100 mA1 mA
300 mA90…300 mA
500 mA150…500 mA
  • It is posible to start the measurement from the positive or negative half of the forced leaking current

RCD IA tripping current measurement for unidirectional pulsating residual current

Selected
Current
RangeResolutionTest
Current
Accuracy
10 mA4…20,0 mA0,1 mA0,35xIΔn..2,0xIΔn±10%IΔn
30 mA12,0…42,0 mA0,35xIΔn..1,4xIΔn
100 mA40,0…140 mA1 mA
300 mA120…420 mA
  • Measurement is possible for a positive or negative forced leakage current.

Low voltage test of the circuit and insulation continuity
Measurement range in accordance with IEC61557:0,12…400 Ω
Test of PE wire continuity using a ±200 mA current

RangeResolutionAccuracy
0,00…19,99 Ω0,01 Ω±(2% m.v + 3 dgt)
20,0…199,9 Ω0,1 Ω
200…400 Ω1 Ω
  • Voltage on open terminals: 4…9 V,
  • Test current at R<2 Ω: min. 200 mA,
  • Autocalibration of test leads
  • Measurements for both polarizations of the current

The device meets the requirements of EMC standards EN 61326 – 1:2006 and EN 61326 – 2-2:2006.

Electric safety:

  • type of insulation: double, according to EN 61010 – 1 and IEC 61557
  • measurement category: IV 300 V (III 600 V) according to EN 61010 – 1
  • protection class acc. to EN 60529: IP67

Other technical data:

  • dimentions: 220 x 98 x 58 mm
  • weight: ~1 kg
  • Auto OFF time: 300, 600, 900 second
  • number of measurements Z and RCD (for NiMH batteries): >5000 (2 per minute)

„m.v.” measured value.

backtotop
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