MPI-540 + EVSE-01
Index: WMGBMPI540EVSE01
Multi-function meter of electrical system parameters & adapter
    Description
    Technical specification
    Standard accessories
    Optional accessories
    Files
    • Description

      SONEL MPI-540 + SONEL EVSE-01 SET

      1. Multi-function meter of electrical system parameters Sonel MPI-540

      The Sonel MPI-540 multifunctional meter is intended for testing home and industrial electrical installations. The instrument can be used to carry out measurements, the results of which determine the safety status of the installation. In addition, the user is able to record the parameters of the electrical networks located at these sites. This makes it possible to control the quality of electricity, and to measure electric shock protection parameters, using a single universal device.

      Significant automation of measurements is made possible by the function of testing residual current circuit breakers in Auto mode, as well as measurement sequences pre-programmed by the manufacturer (so-called self-tests), which can also be extended with own sequences. Automatic measurement of insulation resistance of 3-, 4- and 5-core cables will be carried out with the Sonel AutoISO-1000C adapter. 

       

      2. Adapter for testing vehicle charging stations Sonel EVSE-01

      Sonel EVSE-01 adapter allows to perform comprehensive measurements of electric vehicle charging stations - quickly and in accordance with applicable regulations. Simulating the charging cable (proximity pilot line - PP) and vehicle connection status (control pilot line - CP), it will bring the station into different operating states. This will enable measurements in the field of electric shock protection: ZS fault loop impedance, RISO insulation resistance and checking the parameters of RCD residual current devices.

      To facilitate diagnostics, one of the Sonel EVSE-01 sockets is provided with pulse width modulation signal (PWM).

      Application

      The Sonel EVSE-01 adapter enables measurements of AC electric vehicle charging stations with type 2 connector. Tests for 1-phase and 3-phase stations are available - both with and without ventilation.

      Much more than a multifunctional meter

      • 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
      • 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

      Features

      The meter has above-average functionality. It combines the measuring capabilities of several devices, while ensuring equally good accuracy.

      • MPI-540 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 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.

      Automatic installation safety test

      MPI-540 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.

      Three-phase power quality recorder

      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.

      Ease of reading

      The device is equipped with a color TFT LCD touch screen with a resolution of 800x480 pixels and a diagonal of 7”, which allows for convenient operation and easy reading of parameters and plotted waveforms. This screen size enables displaying more information, available at any time of use. The interface is visible in all conditions – also thanks to the appropriate size of displayed symbols. Included stylus allows to work also with dielectric gloves.

      Built-in help system

      The device has built-in help screens with measurement diagrams. Thanks to this you can easily and quickly check and make sure how to connect to a given system depending on the type of performed measurement.

      Increased resistance to environmental conditions

      The MPI-540 meter will cope well in difficult environmental conditions. Protection against penetration of dust and water is ensured by a unique housing with a level of protection IP51. It is resistant to mechanical damage, and a special design allows you to easily protect the touch screen by shielding using the cover of the meter. In addition to the fact that it protects against damage, it also allows you to conveniently carry and use the device in different positions.

      Communication and software

      A very strong feature of the device is the multitude of communication interfaces and cooperation with external software. You can easily transfer measurement data to your computer via USB port, removable SD memory card, or wireless communication (Bluetooth, Wi-Fi ). In order to generate a report on measurements for electric shock protection, use Sonel Reports PLUS software. Saving the downloaded data to the simplest formats and printing is provided by free Sonel Reader software. The specialized, free Sonel Analysis software is used to read and analyze data from the power quality recorder.

    • Technical specification

      MPI-540 | Specifications – electrical installation parameters


      Measurement functionsMeasurement rangeDisplay rangeResolutionAccuracy
      Fault loop impedance
      Fault loop ZL-PE, ZL-N, ZL-L0.13 Ω…1999.9 Ω acc. to IEC 615570.00 Ω…1999 Ωfrom 0.001 Ω±(5% m.v. + 30 digits)
      Fault loop ZL-PE in RCD modefrom 0.50 Ω…1999 Ω acc. to IEC 615570.00 Ω…1999 Ωfrom 0.01 Ωfrom ±(6% m.v. + 5 digits)
      Measurements of RCD parameters
      RCD tripping test and measurement of tripping time tA measuring current 0.5 IΔn, 1 IΔn, 2 IΔn, 5 IΔn
      general and short-time delay RCD0 ms…300 ms0 ms…300 ms1 msfrom ±(2% m.v. + 2 digits)
      selective RCD0 ms…500 ms0 ms…500 ms1 msfrom ±(2% m.v. + 2 digits)
      Measurement of RCD tripping current IA measuring current 0 0.2 IΔn…2.0 IΔn
      for sinusoidal residual current (AC type)3.3 mA…1000 mA3.3 mA…1000 mAfrom 0.1 mA±5% IΔn
      for unidirectional residual current and unidirectional with the 6 mA DC bias (type A)3.5 mA…700 mA3.5 mA…700 mAfrom 0.1 mA±10% IΔn
      for direct residual current (type B))2.0 mA…1000 mA2.0 mA…1000 mAfrom 0.1 mA±10% IΔn
      Earth resistance
      3- and 4-pole methodfrom 0.50 Ω…1.99 kΩ acc. to IEC 61557-50.00 Ω…1,99 kΩfrom 0.01 Ωfrom ±(2% m.v. + 3 digits)
      3-pole + clamp method0.00 Ω…1.99 kΩ0.00 Ω…1.99 kΩfrom 0.01 Ωfrom ±(2% m.v. + 4 digits)
      2-clamp method0.00 Ω…99.9 kΩ0.00 Ω…99.9 kΩfrom 0.01 Ωfrom ±(10% m.v. + 4 digits)
      Resistance-to-earth0.0 Ω m…99.9 kΩm0.0 Ωm…99.9 kΩmfrom 0.1 ΩmDepending on accuracy of RE measurement
      Insulation resistance
      Measuring voltage 50 V 50 kΩ…250 MΩ acc. to IEC 61557-20 kΩ…250 MΩfrom 1 kΩfrom ±(3% m.v. + 8 digits)
      Measuring voltage 100 V100 kΩ…500 MΩ acc. to IEC 61557-20 kΩ…500 MΩfrom 1 kΩfrom ±(3% m.v. + 8 digits)
      Measuring voltage 250 V250 kΩ…999 MΩ acc. to IEC 61557-20 kΩ…999 MΩfrom 1 kΩfrom ±(3% m.v. + 8 digits)
      Measuring voltage 500 V500 kΩ…2.00 GΩ acc. to IEC 61557-20 kΩ…2.00 GΩfrom 1 kΩfrom ±(3% m.v. + 8 digits)
      Measuring voltage 1000 V1000 kΩ…9.99 GΩ acc. to IEC 61557-20 kΩ…9.99 GΩfrom 1 kΩfrom ±(3% m.v. + 8 digits)
      Resistance of protective conductors and equipotential bondings
      Measurement of resistance of protective conductors and equipotential bondings with ±200 mA current0.12 Ω…400 Ω acc. to IEC 61557-40.00 Ω…400 Ωfrom 0.01 Ω±(2% m.v. + 3 digits)
      Measurement of resistance with low current0.0 Ω…1999 Ω0.0 Ω…1999 Ωfrom 0.1 Ω±(3% m.v. + 3 digits)
      Light intensity
      Measurement in luxes (lx)0 lx…399.9 klx0 lx…399.9 klxfrom 0.001 lxfrom ±(2% m.v. + 5 digits)
      Measurement in feet-candles (fc)0 fc…39.99 kfc0 fc…39.99 kfcfrom 0.001 fcfrom ±(2% m.v. + 5 digits)
      Phase sequence indicationin the same direction (correct), opposite direction (incorrect), UL-L voltage: 95 V…500 V (45 Hz…65 Hz)

      “m.v.” - measured value

      MPI-540 | Specifications – 3-phase power quality recorder


      The device is designed to work with mains:

      • with nominal frequency 50/60 Hz
      • with nominal voltage: 64/110 V, 110/190 V, 115/200 V, 127/220 V, 220/380 V, 230/400 V, 240/415 V, 254/440 V, 290/500 V
      • DC networks

      Supported systems:

      • single-phase
      • split-phase with common N
      • three-phase – WYE with and without N conductor
      • three-phase – Delta
      ParameterMeasuring rangeMax. resolutionAccuracy
      Alternating voltage (TRMS)0.0…500 V0.01% Unom±0,5% Unom
      Alternating current (TRMS)depending on clamp*0.01% Inom±2% m.v. if m.v. ≥ 10% Inom, ±2% Inom if m.v. < 10% Inom , (error does not account for clamp error)
      Frequency40.00…70.00 Hz0.01 Hz±0.05 Hz
      Active, reactive, apparent and distortion powerdepending on configuration (transducers, clamps)4 significant digitsdepending on configuration (transducers, clamps)
      Active, reactive and apparent energydepending on configuration (transducers, clamps)4 significant digitsas power error
      cosφ and power factor (PF)0.00…1.000.01±0.03
      Harmonics
      Voltageas for alternating voltage True RMSas for alternating voltage True RMS±5% m.v. if m.v. ≥ 3% Unom, ±0,15% Unom if m.v. < 3% Unom
      Currentas for alternating current True RMSas for alternating current True RMS±5% m.v. if m.v. ≥ 10% Unom, ±0,5% Unom if m.v. < 10% Unom
      THD
      Voltage0.0…100.0% (relative to RMS value)0.1%±5%
      Current0.0…100.0% (relative to RMS value)0.1%±5%
      Unbalance factor0.0…10.0%0.1%±0.15% (absolute error)

      *

      • F-1A, F-2A, F-3A clamp: 0…3000 A AC (10 000 Ap-p)
      • C-4A clamp: 0…1200 A AC
      • C-5A clamp: 0…1000 A AC/0…1400 A DC
      • C-6A clamp: 0…12 A AC
      • C-7A clamp: 0…100 A AC

      EVSE-01 | Functional comparison


      MPI-540-PV MPI-540 MPI-536 MPI-535MPI-530-IT MPI-530 MPI-525 MPI-520MPI-507 MPI-506MPI-502F
      auto measurements---
      automatic threephase measurement via multiplug---
      visual inspection---
      fault loop ZL-PE, ZL-N parameters measurement
      6 mA RCD test---
      RCD testAC, A, F, B, B+, EVAC, A, F, B, B+AC, AAC, A
      insulation resistance RISO measurement-
      measurements report
    • Standard accessories
    • Optional accessories
    • Files
      • Version 4.7.1:

        New features:

        • Added support for HWh hardware revision (applies to PQM-710/711).

        Version 4.7.0:

        New features:

        • Added ability to enter higher Isc value for IEEE and Chilean reports.

        Version 4.6.9:

        New features:

        • Added "sum of currents" parameter on phasors diagram in Live mode for PQM-700 (requires at least firmware 1.19).
        • Added 50 harmonics support in Polish standards for PQM-700 (requires at least firmware 1.19).
        • Added recording of supplied and received active powers (15-min) for user recordings and configurations with Polish and GOST standards for PQM-700 (requires at least firmware 1.19).

        Fixes:

        • Improved data export for CSV file.
        • Improved backward compatibility.
        • Minor bug fixes.

        Version 4.6.8:

        New features:

        - Updated EN 50160:2022 standards settings.

        Fixes:

        - Fixed application crash which could occur during some recorded data loading.

        - Fixed application crash during plots printing.

        - Minor bug fixes.

        Version 4.6.7:

        New features:

        - Updated Polish standards settings.

        Fixes:

        - Minor bug fixes.

        Version 4.6.6:

        New features:

        - Added report generation according to IEEE 519:2022 standard for PQM-702(x)/703/710/711 (requires at least firmware 1.56).

        Fixes:

        - Improved recalculation of IL for TDD value in data analysis table.

        - Minor bug fixes.

        Version 4.6.5:

        Fixes:

        - Fixed mechanism for selecting 15-min samples in norm reports.

        Version 4.6.4:

        New features:
        - Added new nominal voltage Un 346/600 V.
        - Expanded micro-installations recommendation report.
        Fixes:
        - Fixed data exclusion in standards reports for PQM-702(x)/703/710/711 (requires at least firmware 1.55) and PQM-700 (requires at least firmware 1.18) recorded data.
        - Fixed possibility to enable detection of waveshape variations and phase jumps events in half-period recording configurations for PQM-702(x)/703/710/711 (requires at least firmware 1.55).
        - Improved recovery data mechanism.
        - Minor bug fixes.

        Version 4.6.2:

        New features
        - added support for 4-quadrant energy meters for MPI-540 and MPI-540-PV recorded data (requires at least firmware 3.21);
        - added new nominal voltage Un 462/800 V;
        - increased micro-installations recommendation report.
        Fixes:
        - improved standard reports export;
        - minor bug fixes.

        Version 4.5.0:
        New features:
        - Added support for the PQM-702/703 analyzers without the OR-1 interface.
        Fixes:
        - Translation fixes in Ukrainian language.

        Version 4.4.9:
        New features:
        - Added Ecuadorian standards for PQM-702(x)/703/710/711.
        - Increased edit ability of the reports header.
        Fixes:
        - Implemented A3:2019 amendment to EN 50160 standard (requires restoring default values for "EN 50160:2010 + A3:2019 low voltage" standard in Program settings module).
        - Fixed problem with reading NEC220.87 data.
        - Improved user interface.
        - Minor bug fixes.

      • Version 4.7.0:

        New features:

        • Added ability to enter higher Isc value for IEEE and Chilean reports.

        Version 4.6.9:

        New features:

        • Added "sum of currents" parameter on phasors diagram in Live mode for PQM-700 (requires at least firmware 1.19).
        • Added 50 harmonics support in Polish standards for PQM-700 (requires at least firmware 1.19).
        • Added recording of supplied and received active powers (15-min) for user recordings and configurations with Polish and GOST standards for PQM-700 (requires at least firmware 1.19).

        Fixes:

        • Improved data export for CSV file.
        • Improved backward compatibility.
        • Minor bug fixes.

        Version 4.6.8:

        New features:

        - Updated EN 50160:2022 standards settings.

        Fixes:

        - Fixed application crash which could occur during some recorded data loading.

        - Fixed application crash during plots printing.

        - Minor bug fixes.

        Version 4.6.7:

        New features:

        - Updated Polish standards settings.

        Fixes:

        - Minor bug fixes.

        Version 4.6.6:

        New features:

        - Added report generation according to IEEE 519:2022 standard for PQM-702(x)/703/710/711 (requires at least firmware 1.56).

        Fixes:

        - Improved recalculation of IL for TDD value in data analysis table.

        - Minor bug fixes.

        Version 4.6.5:

        Fixes:

        - Fixed mechanism for selecting 15-min samples in norm reports.

        Version 4.6.4:

        New features:
        - Added new nominal voltage Un 346/600 V.
        - Expanded micro-installations recommendation report.
        Fixes:
        - Fixed data exclusion in standards reports for PQM-702(x)/703/710/711 (requires at least firmware 1.55) and PQM-700 (requires at least firmware 1.18) recorded data.
        - Fixed possibility to enable detection of waveshape variations and phase jumps events in half-period recording configurations for PQM-702(x)/703/710/711 (requires at least firmware 1.55).
        - Improved recovery data mechanism.
        - Minor bug fixes.

        Version 4.6.2:

        New features
        - added support for 4-quadrant energy meters for MPI-540 and MPI-540-PV recorded data (requires at least firmware 3.21);
        - added new nominal voltage Un 462/800 V;
        - increased micro-installations recommendation report.
        Fixes:
        - improved standard reports export;
        - minor bug fixes.

        Version 4.5.0:
        New features:
        - Added support for the PQM-702/703 analyzers without the OR-1 interface.
        Fixes:
        - Translation fixes in Ukrainian language.

        Version 4.4.9:
        New features:
        - Added Ecuadorian standards for PQM-702(x)/703/710/711.
        - Increased edit ability of the reports header.
        Fixes:
        - Implemented A3:2019 amendment to EN 50160 standard (requires restoring default values for "EN 50160:2010 + A3:2019 low voltage" standard in Program settings module).
        - Fixed problem with reading NEC220.87 data.
        - Improved user interface.
        - Minor bug fixes.

      • Wersja 5.0.0:

        New features:

        • Automatic time change functionality added for PQM-702(x)/703/710/711.
        • Updated the EN 50160 standard to version EN 50160:2022 + A1:2025.
        • Added the event sorting by columns feature.
        • Withdrawn support for PQM-701(x).

        Improvements:

        • Modernized user report presentation.
        • Optimized data export to CSV file.
        • Fixed minor bugs.

        Version 4.7.1:

        New features:

        • Added support for HWh hardware revision (applies to PQM-710/711).

        Version 4.7.0:

        New features:

        • Added ability to enter higher Isc value for IEEE and Chilean reports.

        Version 4.6.9:

        New features:

        • Added "sum of currents" parameter on phasors diagram in Live mode for PQM-700 (requires at least firmware 1.19).
        • Added 50 harmonics support in Polish standards for PQM-700 (requires at least firmware 1.19).
        • Added recording of supplied and received active powers (15-min) for user recordings and configurations with Polish and GOST standards for PQM-700 (requires at least firmware 1.19).

        Fixes:

        • Improved data export for CSV file.
        • Improved backward compatibility.
        • Minor bug fixes.

        Version 4.6.8:

        New features:

        - Updated EN 50160:2022 standards settings.

        Fixes:

        - Fixed application crash which could occur during some recorded data loading.

        - Fixed application crash during plots printing.

        - Minor bug fixes.

        Version 4.6.7:

        New features:

        - Updated Polish standards settings.

        Fixes:

        - Minor bug fixes.

        Version 4.6.6:

        New features:

        - Added report generation according to IEEE 519:2022 standard for PQM-702(x)/703/710/711 (requires at least firmware 1.56).

        Fixes:

        - Improved recalculation of IL for TDD value in data analysis table.

        - Minor bug fixes.

        Version 4.6.5:

        Fixes:

        - Fixed mechanism for selecting 15-min samples in norm reports.

        Version 4.6.4:

        New features:
        - Added new nominal voltage Un 346/600 V.
        - Expanded micro-installations recommendation report.
        Fixes:
        - Fixed data exclusion in standards reports for PQM-702(x)/703/710/711 (requires at least firmware 1.55) and PQM-700 (requires at least firmware 1.18) recorded data.
        - Fixed possibility to enable detection of waveshape variations and phase jumps events in half-period recording configurations for PQM-702(x)/703/710/711 (requires at least firmware 1.55).
        - Improved recovery data mechanism.
        - Minor bug fixes.

        Version 4.6.2:

        New features
        - added support for 4-quadrant energy meters for MPI-540 and MPI-540-PV recorded data (requires at least firmware 3.21);
        - added new nominal voltage Un 462/800 V;
        - increased micro-installations recommendation report.
        Fixes:
        - improved standard reports export;
        - minor bug fixes.

        Version 4.5.0:
        New features:
        - Added support for the PQM-702/703 analyzers without the OR-1 interface.
        Fixes:
        - Translation fixes in Ukrainian language.

        Version 4.4.9:
        New features:
        - Added Ecuadorian standards for PQM-702(x)/703/710/711.
        - Increased edit ability of the reports header.
        Fixes:
        - Implemented A3:2019 amendment to EN 50160 standard (requires restoring default values for "EN 50160:2010 + A3:2019 low voltage" standard in Program settings module).
        - Fixed problem with reading NEC220.87 data.
        - Improved user interface.
        - Minor bug fixes.

        NOTE: Program version 5.0.0 and later does not support the Sonel PQM-701(x) series analyzers. For proper operation, use the latest version of Sonel Analysis 4.
      • Changes in version 4.0.26.0 compared to the previous one:

        • Improvements in the configuration of the PAT-10 meter.

        Changes in version 4.0.25.0 compared to the previous one:

        • Improved Excel export for the MRU‑200-GPS device.
        • Enhanced data reading from meters with MeasureEffect system.
        • Improved file reading from the MPI‑535 device.
        • Improved the general Excel export mechanism.

        Changes in version 4.0.24.0 compared to the previous one:

        • Data export to Excel has been improved.
        • The integration of the meters with the MeasureEffect system has been optimized in version 1.26.1.103.
        • The display of results for the MRU-120 has been updated.
        • Usability of the MZC-304F has been improved.

        Changes in version 4.0.23.0 compared to the previous one:

        • Improved communication with the MPI‑540.
        • Updated libraries and applied minor fixes.
        • Added support for MMR-6500E and MMR-6700E.

        Changes in version 4.0.22.0 compared to the previous one:

        • Improved communication with the MRU-30.
        • Added serial number reading for the MPI-520 and MPI-525.
        • Fixes realted to chart rendering and translations.
        • Minor improvements enhancing overall program stabiltiy.

        Changes in version 4.0.21.0 compared to the previous one:

        • Improved visibility of the client selection window.

        Changes in version 4.0.20.0 compared to the previous one:

        • Improved communication with meters.
        • Improved chart generation.
        • Improved visibility of the client selection window.
      • Changes in version 4.0.25.0 compared to the previous one:

        • Improved Excel export for the MRU‑200-GPS device.
        • Enhanced data reading from meters with MeasureEffect system.
        • Improved file reading from the MPI‑535 device.
        • Improved the general Excel export mechanism.

        Changes in version 4.0.24.0 compared to the previous one:

        • Data export to Excel has been improved.
        • The integration of the meters with the MeasureEffect system has been optimized in version 1.26.1.103.
        • The display of results for the MRU-120 has been updated.
        • Usability of the MZC-304F has been improved.

        Changes in version 4.0.23.0 compared to the previous one:

        • Improved communication with the MPI‑540.
        • Updated libraries and applied minor fixes.
        • Added support for MMR-6500E and MMR-6700E.

        Changes in version 4.0.22.0 compared to the previous one:

        • Improved communication with the MRU-30.
        • Added serial number reading for the MPI-520 and MPI-525.
        • Fixes realted to chart rendering and translations.
        • Minor improvements enhancing overall program stabiltiy.

        Changes in version 4.0.21.0 compared to the previous one:

        • Improved visibility of the client selection window.

        Changes in version 4.0.20.0 compared to the previous one:

        • Improved communication with meters.
        • Improved chart generation.
        • Improved visibility of the client selection window.
      • Changes in version 4.01.16 compared to the previous one:

        • Added export of measurement data to USB storage.
        • Improved stability of data export to SD card.
        • Fixed USB storage operation issues.
        • Stability fixes.
        • Improved reliability.

        Changes in version 4.01.14 compared to the previous one:

        • French language added.
        • Improved sending of data from the meter via email.
        • Improved transfer of structure from reporting programs to the meter.
        • Improved stability.

        Changes in version 3.26.06 compared to the previous one:

        • Improvements in RISO measurements
        • Improvements in ZRCD measurements.
        • Improvements Z (EVSE) measurements.
        • Improvements regarding sounds.
        • Keyboard improvements.
        • Ability to add folders in auto measurements.
        Notes on the update from version 4.00.21: 1. Updating the meter from an older system version (below 4.0) to a newer one is only possible using an update file on a USB flash drive. 2. Updating the meter from an older system version to a newer one is irreversible for the user. You can only roll back updates within a given system version.