The meter has high quality functionality. It combines the measuring capabilities

of multiple devices, while ensuring great accuracy.

The MPI-540-PV instrument can measure photovoltaic installations in accordance with the EN 62446 standard:

• continuity of protective and equipotential bondings,
• earth resistance,
• insulation resistance on the DC side,
• open circuit voltage UOC,
• short circuit current ISC,
• work currents and powers on both DC and AC side,
• inverter efficiency.

MPI-540 / MPI-540-PV can record 50/60 Hz power quality parameters in accordance to S class of EN 61000-4-30:

• voltage L1, L2, L3, – average values in the range up to 500 V,
• L1, L2, L3 currents, – average values, current measurement in the range
• up to 3 kA (depending on the current probes used),
• frequency in the range of 40 Hz – 70 Hz,
• active (P), reactive (Q) and apparent (S) power,
• power factor (PF), cosφ, tanφ,
• harmonics (up to 40th for voltage and current),
• total harmonic distortion (THD) for current and voltage,
• recording of events for current and voltage,
• energy flow – 4 quadrants.

MPI-540 / MPI-540-PV can be used for all measurements for commissioning of electrical installations in accordance with applicable regulations:

• short circuit loop impedance (also in circuits secured with RCDs),
• RCD parameters,
• insulation resistance,
• earth resistance (4 measurement methods + soil resistivity measurement),
• continuity of protective and equipotential bondings,
• light intensity measurement,
• phase sequence test,
• motor rotation direction test.