Sonel MPI-540-PV

• The largest touch screen on the market (7”) – remarkable ergonomics and ease of use
• Removable microSD memory card – easy increase of memory capacity
• Li-Ion battery – longer operation of the meter
• Measurement of photovoltaic installations according to EN 62446 standard
• Cooperation with solar radiation and temperature meter
• Photovoltaic installation test report with Sonel Reports PLUS software
• Three-phase power recorder – advanced power quality diagnostics
• Real time display of network parameters – immediate evaluation of the test site conditions
• Parameters measured in accordance to class S of EN 61000-4-30 standard – high accuracy of measurements
• Energy cost calculator – quick evaluation of potential savings
• Measurement of all parameters related to earthing and protection against electric shock – one device instead of several
• Quick measurement of the fault loop impedance in networks secured with RCD without triggering (up to several seconds) – time saver
• Auto measurements – the ability to perform automatic measurements in sequence – simplified measurements
• Fast path from measurements to report – time saver

The meter has above-average functionality. It combines the measuring capabilities of several devices, while ensuring equally good 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 U_OC,
  • short circuit current I_SC,
  • work currents and powers on both DC and AC side,
  • inverter efficiency.
•  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), cos?, tan?,
  • 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-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

MPI-540 / MPI-540-PV allow safety control of residential, commercial and industrial electrical installations. Measurements can be easily automated with:

• auto mode of residual current devices (RCD) tests,
• auto measurements – freely configurable measuring sequences,
• AutoISO-1000C adapter for automatic insulation resistance test of 3-, 4- and 5-conductor cables, without switching.

MPI-540-PV is an extremely universal meter, designed in particular for testing photovoltaic installations. The device allows a complete set of tests on the DC and AC side – in accordance with the guidelines of EN 62446 standard.

Measuring parameters related to the photovoltaic installation, the instrument will automatically convert them to the STC (Standard Test Conditions) reference conditions. Measurements of voltage, current and power on the AC and DC side of the inverter allow to verify its efficiency. Sonel Reports PLUS software enables creating PV installation test report with measurement results saved meter’s in memory.

The device has a three-phase power quality recorder with the LIVE mode view and the possibility to register electrical network parameters such as voltage, current, power, harmonics and THD. The meter enables reading of selected parameters and their graphic presentation on the screen in real time. These parameters are measured and displayed concurrently with the recording on the memory card. In the LIVE mode, the user can see:

• voltage and current waveforms (oscilloscope),
• voltage and current timeplots,
• a phasor graph,
• display of multiple parameters in tabular form,
• spectrum graph of current and voltage harmonics.