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MPI-540-PV  Multifunction Electrical Installation Meter
About the MPI-540-PV

The MPI-540 is a multifunction meter designed to test the safety and performance of both residential and industrial electrical installations. It measures critical parameters like insulation resistance, RCDs, earth resistance, fault loop impedance, and more. It also features a built-in three-phase power quality recorder, a 7” touchscreen, and automated test sequences for fast, accurate assessments.

Functions:

  • Comprehensive multifunction tester for electrical installations and photovoltaic systems

  • Combines power quality analysis, electrical safety verification, and PV performance diagnostics

  • Integrated memory and reporting software support

  • User-friendly interface with color touchscreen

  • Ideal for electricians, solar technicians, and compliance inspectors

Specifications:
Electrical installation testing capabilities

touchscreen display

  • 7” color TFT LCD

  • 800×480 resolution

  • Stylus compatible for gloved use

  • Built-in help diagrams for measurements

memory & storage

  • Removable microSD memory card

  • USB data transfer

  • Bluetooth and Wi-Fi support

  • Compatible with Sonel Reports PLUS and Sonel Analysis

protection & durability

  • IP51 ingress protection

  • Shock-resistant housing with screen cover

  • Suitable for fieldwork in harsh environments
     

View Data Sheet For compatible clamps & current measurements + detailed specifications

  • Insulation resistance measurement up to 1000 V

  • Continuity of protective and equipotential bonding conductors with 200 mA current

  • Loop impedance measurement (with and without tripping RCDs)

  • Measurement of prospective short-circuit current (PSC/IK)

  • Measurement of fault loop impedance with high current and low current methods

  • RCD testing (general, selective, and programmable)

  • Earth resistance measurement (3- and 4-pole method)

  • Phase sequence and rotation indication

  • Testing of residual voltage and disconnection time

  • Voltage, frequency, and current measurement

Power quality recording:

  • Voltage measurement (L–L and L–N)

  • Current measurement using clamp meters or Rogowski coils

  • Power measurement: active, reactive, and apparent (per phase and total)

  • Energy consumption and demand logging

  • Harmonic analysis up to 40th harmonic

  • THD (Total Harmonic Distortion) for voltage and current

  • Inrush current capture

  • Event recording: voltage dips, swells, interruptions

  • Logging interval configurable from 1s to 60min

  • Large internal memory for long-term recording

  • Export to PC for reporting and analysis

Solar System Testing

  • Measurement of open-circuit voltage (Voc) and short-circuit current (Isc)

  • PV system compliance testing according to EN 62446

  • Measurement of operating voltage and current under load

  • Automatic detection of PV string polarity and wiring faults

  • IV curve tracing and analysis (with optional accessories)

  • Recording of irradiance and PV module temperature using IRF-1 meter

  • Auto calculation of fill factor and PV performance ratio

  • Reporting via Sonel Reports PLUS software

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