Sonel – MPI-540 Multifunction Electrical Installations Meter

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Datasheet - SONEL MPI-540


The MPI-540 meter is designed for checking home and industrial electrical installations. The measurements that can be made, by using the device, provides the results which determine the safety of the installation. In addition, the user has the possibility to register the parameters of electrical networks located at these facilities.

This allows verification of the quality of electricity, and measurement of the parameters of protection against electric shock using a single universal device. Significant automation of measurements of the meter makes possible to test functioning of residual current circuit breakers in the Auto mode, as well as in pre-programmed measuring sequences (so-called auto-tests), which can also be extended with own sequences. Automatic measurement of insulation resistance of 3-, 4- and 5-wire conductors is possible by using additional the AUTO ISO-1000C adapter.

Largest 7″ touch screen on the market

  • Measurement of short circuit loop impedance ZL-PE , ZL-N, Z L-L  0 to 2000 ohm
  • Measurement of short circuit loop impedance ZL-PE in RCD mode 0 to 2000 ohm
  • Measurement of earth resistance RE with the 3p and 4p method 0 to 2 kohm
  • Selective earth resistance measurement with clamp (3p + clamp) 0 to 2 kohm
  • Selective earth measurement with two clamps 0 to 100 ohm
  • Soil resistivity mesurement (ρ) 0 to 2 kohm
  • Phase sequence indication
  • Measurements of RCD parameters (voltage range 95…270 V)
  • Measurement of RCD tripping current IA for unidirectional residual currentand unidirectional with the 6 mA DC bias (type A)
  • Measurement of RCD tripping current I for direct residual current (type B)
  • Insulation resistance measurements 50 V, 100 V, 250 V, 500 V, 1000 V
  • Low-voltage measurement of resistance and circuit continuity 0 to 400 ohm
  • Illuminance measurement 0.1 t 19.9 klux
  • Three-phase recorder of electrical network parameters 
  • Voltages L1, L2, L3, – average values in the range up to 500 V,
  • Currents L1, L2, L3  – average values, current measurement in the range up to 3 kA (depending on the current clamps used)
  • Frequency in the range of 40Hz – 70Hz
  • Active (P), reactive (Q) and apparent (S) power
  • Power factor (PF), cosφ
  • Harmonics (up to 40 in voltage and current)
  • Total harmonic distortion (THD) for current and voltage