MPI-540-PV Start

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The multifunctional meter of electrical installation parameters Sonel MPI-540-PV is an advanced tool designed in particular for measuring the parameters of photovoltaic installations. With the help of one device, it is possible to perform a whole series of tests on the DC and AC side in accordance with the guidelines of PN-EN 62446. In addition, Sonel MPI-540-PV is also used to carry out all measurements to determine the safety status of home and industrial electrical installations. The presented meter is a device with advanced capabilities, dedicated to specialists operating in the installation and electrical industry.

When measuring the parameters of a photovoltaic installation, the meter automatically recalculates the parameters to the STC (Standard Test Conditions) reference conditions. Measurements of voltage, current and power on the AC and DC sides of the inverter will allow you to verify its efficiency. After transferring the data stored in the meter's memory to the Sonel PE6 software, it is possible to generate a report on the tests of the parameters of photovoltaic installations.

In order to automate the measurements, the Sonel MPI-540-PV meter has been additionally enriched with the function of testing residual current devices in Auto mode. The device also has pre-programmed measurement sequences by the manufacturer (so-called self-tests), which can be expanded with your own sequences if necessary. The possibilities and functionality of the meter will be additionally increased by a properly selected additional accessory, e.g. in the form of the AutoISO-1000C adapter, which enables automatic measurements of the insulation resistance of 3-, 4- and 5-core cables.

Sonel MPI-540-PV in version S is not equipped with 3 pcs of 3-F flexible current clamps
Much more than a multifunction meter
The largest touch panel on the market (7 ”) - extraordinary ergonomics and ease of use

Removable microSD card - easy to increase memory capacity

Li-Ion battery - longer operation of the meter

MPI-540-PV: measurements of photovoltaic installations in accordance with the PN-EN 62446 standard

MPI-540-PV: test report of photovoltaic installations after data transfer to Sonel Pomiary Elektryczne software

Three-phase power network parameters recorder - advanced power quality diagnostics

Reading the data of current network parameters - immediate evaluation of the tested device

Parameters measured in class S of the PN-EN 61000-4-30 standard - high accuracy of measurements

Energy loss calculator - quick diagnosis of potential savings

Measurement of all parameters of electric shock protection - one device instead of several

Fast fault loop measurement with RCD without tripping (up to a few seconds) - saving time

Self-tests - the ability to perform automatic measurements in sequence - simplification of measurements

Fast track from measurement to report - save time
Characteristics
The meter is characterized by above-average possibilities in the field of functionality. It combines the measurement capabilities of several devices, while ensuring equally good accuracy.

The MPI-540-PV instrument can perform measurements of photovoltaic installations in accordance with the PN-EN 62446 standard:

continuity of protective connections,

earthing resistance,

insulation resistance on the DC side,

open circuit voltage U _OC ,

short- circuit current I _SC ,

operating currents and powers on the DC and AC side,

inverter efficiency.

The MPI-540-PV device can record 50/60 Hz power quality parameters in class S of the EN 61000-4-30 standard:

L1, L2, L3 voltages - 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 clamps used),

frequency in the range of 40 Hz - 70 Hz,

active power (P), reactive power (Q), apparent power (S),

power factor (PF), cosφ,

harmonics (up to the 40th in voltage and current),

THD for current and voltage.

The MPI-540-PV instrument can be used to perform all acceptance measurements of electrical installations in accordance with the applicable regulations:

fault loop impedance (also in circuits with RCDs),

RCD parameters,

insulation resistance,

earthing resistance (4 measurement methods + soil resistivity measurement),

continuity of protective and equipotential bonding,

illuminance,

phase sequence test,

motor rotation direction test.
Installation safety check
Thanks to the device, you can control domestic and industrial electrical installations in terms of safety. Measurements can be easily automated by:

testing of RCDs in Auto mode,

self-tests - i.e. freely configurable measurement sequences,

using the AutoISO-1000C adapter to test the insulation resistance of 3-, 4- and 5-core cables.
Photovoltaics under supervision

The MPI-540-PV is an extremely universal meter, designed in particular for testing photovoltaic installations. With the device, we will perform a complete set of tests on the DC and AC side - in accordance with the guidelines of PN-EN 62446. By measuring the parameters related to the photovoltaic installation, the device will automatically convert them to the STC (Standard Test Conditions) reference conditions. Measurements of voltages, currents and power on the AC and DC sides of the inverter will allow you to verify its efficiency. Saving the results in the memory of the meter will allow you to report on the tests carried out in the Sonel Pomiary Elektryczne software.
Comprehensive analysis of network parameters
The built-in three-phase recorder allows you to observe the current state of the network and record its parameters, such as voltage, current, powers, harmonics, THD. The meter enables the reading of selected quantities and displaying their graphic presentation on the screen in real time. The parameters are measured independently of the registration saved on the memory card. The device can present:

graphs of voltage and current waveforms (oscilloscope),

graphs of voltage and current over time,

phasor diagram,

measurements of many parameters in tabular form,

graph of harmonics in current and voltage.
Easy to read

The device is equipped with a 7 ”color LCD touch screen with a resolution of 800x480 pixels. This guarantees ease of use and easy reading of parameters and time waveforms. The large screen means more information is available when using the meter. The interface is readable in all conditions - also thanks to the appropriate size of displayed symbols. The included stylus also allows you to work 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 how to connect a given system depending on the type of measurement being made.

Increased resistance to environmental conditions

The MPI-540-PV meter will perfectly cope with difficult environmental conditions. Protection against the ingress of dust and water is ensured by a unique housing with IP51 tightness level. It is resistant to mechanical damage, and the special design allows you to easily protect the touch display by sliding 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 various positions.

Communication and software

The advantage of the device is the multitude of communication interfaces and cooperation with external software. Measurement data can be transferred to a computer via a USB port, a removable SD memory card or via wireless communication (Bluetooth *, Wi-Fi). In order to generate a report on tests in the field of electric shock protection, use the Sonel Pomiary Elektryczne software. Saving downloaded resources to the simplest formats and printing is provided by Sonel Reader . The specialist Sonel Analysis software is used to read and analyze data from the recorder .

Specification - parameters of electrical installations

Measurement functions	Measurement range	Display range	Resolution	Accuracy
Fault loop impedance
Short- circuit loop Z _L-PE , Z _L-N , Z _L-L	0.13 Ω… 1999.9 Ω according to IEC 61557	0.00 Ω… 1999 Ω	from 0.01 Ω	± (5% m + 30 digits)
Short- circuit loop Z _L-PE in RCD mode	from 0.50 Ω… 1999 Ω according to IEC 61557	0.00 Ω… 1999 Ω	from 0.01 Ω	from ± (6% m + 5 digits)
Measurements of RCD parameters
RCD tripping test and measurement of tripping time t _A test current 0.5 I _Δn , 1 I _Δn , 2 I _Δn , 5 I _Δn
General type and short time delay RCD	0 ms… 300 ms	0 ms… 300 ms	1 ms	from ± (2% in m + 2 digits)
Selective RCD	0 ms… 500 ms	0 ms… 500 ms	1 ms	from ± (2% in m + 2 digits)
Measurement of RCD tripping current I _A test current 0.2 I _Δn … 2.0 I _Δn
for sinusoidal residual current (AC type)	3.3 mA… 1000 mA	3.3 mA… 1000 mA	from 0.1 mA	± 5% I _Δn
for 1-way and 1-way residual current with 6 mA DC bias (type A)	3.5 mA… 700 mA	3.5 mA… 700 mA	from 0.1 mA	± 10% I _Δn
for DC differential current (type B)	2.0 mA… 1000 mA	2.0 mA… 1000 mA	from 0.1 mA	± 10% I _Δn
Earth resistance
3- and 4-wire method	from 0.50 Ω… 1.99 kΩ according to IEC 61557-5	0.00 Ω… 1.99 kΩ	from 0.01 Ω	from ± (2% in m + 3 digits)
3-wire method + clamps	0.00 Ω… 1.99 kΩ	0.00 Ω… 1.99 kΩ	from 0.01 Ω	from ± (2% in m + 4 digits)
2-clamp method	0.00 Ω ... 99.9 kΩ	0.00 Ω ... 99.9 kΩ	from 0.01 Ω	from ± (10% in m + 4 digits)
Soil resistivity	0.0 Ω m… 99.9 kΩm	0.0 Ωm ... 99.9 kΩm	from 0.1 Ωm	Depends on the accuracy of the measurement R _E
Insulation resistance
Measuring voltage 50 V	50 kΩ… 250 MΩ according to IEC 61557-2	0 kΩ… 250 MΩ	from 1 kΩ	from ± (3% m + 8 digits)
Measuring voltage 100 V	100 kΩ… 500 MΩ according to IEC 61557-2	0 kΩ… 500 MΩ	from 1 kΩ	from ± (3% m + 8 digits)
Measuring voltage 250 V	250 kΩ… 999 MΩ according to IEC 61557-2	0 kΩ… 999 MΩ	from 1 kΩ	from ± (3% m + 8 digits)
Measuring voltage 500 V	500 kΩ… 2.00 GΩ according to IEC 61557-2	0 kΩ… 2.00 GΩ	from 1 kΩ	from ± (3% m + 8 digits)
Measurement voltage 1000 V	1000 kΩ… 9.99 GΩ according to IEC 61557-2	0 kΩ… 9.99 GΩ	from 1 kΩ	from ± (3% m + 8 digits)
Resistance of protective and equalizing conductors
Continuity measurement of protective connections and equipotential bonding with ± 200 mA current	0.12 Ω… 400 Ω according to IEC 61557-4	0.00 Ω… 400 Ω	from 0.01 Ω	± (2% in m + 3 digits)
Low current resistance measurement	0.0 Ω… 1999 Ω	0.0 Ω… 1999 Ω	from 0.1 Ω	± (3% in m + 3 digits)
Illuminance
Measurement in lux (lx)	0 lx… 399.9 klx	0 lx… 399.9 klx	from 0.001 lux	from ± (2% m + 5 digits)
Measurement in feet (fc)	0 fc… 39.99 kfc	0 fc… 39.99 kfc	from 0.001 fc	from ± (2% m + 5 digits)
Phase sequence indications	compatible, opposite, voltage U _L-L : 95 V ... 500 V (45 Hz ... 65 Hz)

"in m" - measured value

3-phase recorder

The device is designed to work in networks:

with a rated frequency of 50/60 Hz
with rated voltages: 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
direct current

Supported network systems:

single phase
two-phase with common N
three-phase star with and without N conductor
three-phase delta

Parameter	Measurement range	Maximum resolution	Accuracy
Alternating Voltage (TRMS)	0.0… 500 V	0.01% U _nom	± 0.5% U _nom
Alternating current TRMS	depending on clamps *	0.01% I _nom	± 2% in m if in m ≥ 10% I _nom, ± 2% I _nom if in m <10% I _nom (the error does not include the clamps error)
Frequency	40.00… 70.00 Hz	0.01 Hz	± 0.05 Hz
Active, reactive, apparent and distortion power	depending on configuration (transformers, clamps)	4 significant figures	depending on configuration (transformers, clamps)
Active, reactive and apparent energy	secondo la configurazione (sensori, pinze)	4 significant figures	like a power error
cosφ and power factor (PF)	0.00… 1.00	0.01	± 0.03
Harmonics
Tension	same as for alternating voltage True RMS	same as for alternating voltage True RMS	± 5% in m if in m ≥ 3% U _nom , ± 0.15% U _nom if in m <3% U _nom
Electricity	same as for alternating current True RMS	same as for alternating current True RMS	± 5% in m if in m ≥ 10% U _nom , ± 0.5% of U _nom if in m <10% U _nom
THD
Tension	0.0 ... 100.0% (relative to the rms value)	0.1%	± 5%
Electricity	0.0 ... 100.0% (relative to the rms value)	0.1%	± 5%
The asymmetry factor	0.0… 10.0%	0.1%	± 0.15% (absolute error)

Clamps F-1A, F-2A, F-3A: 0 ... 3000 A AC (10,000 A _p-p )
Clamps C-4A: 0… 1000 A AC (3600 A _p-p )
Clamps C-5A: 0… 1000 A AC / DC (3600 A _p-p )
Clamps C-6A: 0..10 A AC (36 A _p-p )
Clamps C-7A: 0… 100 A AC (360 A _p-p )

Measurement of alternating current (True RMS) using the clamp

	C-4A	C-5A	C-6A	C-7A	F-1A	F-2A	F-3A
Rated current	1000 A AC	1000 A AC, 1400 A DC	10 A AC	100 A AC	3000 A AC	3000 A AC	3000 A AC
Frequency	30 Hz… 10 kHz	DC… 5 kHz	40 Hz… 10 kHz	40 Hz… 1 kHz	40 Hz… 10 kHz	40 Hz… 10 kHz	40 Hz… 10 kHz
Output signal level	1 mV / 1 A	1 mV / 1 A	100 mV / 1 A	5 mV / 1 A	77.6 μV / 1 A	38.8 μV / 1 A	19.4 μV / 1 A
Diameter of measured cable	52 mm	39 mm	20 mm	24 mm	360 mm	235 mm	120 mm
Minimum basic accuracy	≤0.5%	≤1.5%	≤1%	0.5%	1%	1%	1%
Battery powered	-	√	-	-	-	-	-
Cable length	2.2 m	2.2 m	2.2 m	3 m	2.2 m	2.2 m	2.2 m
Measurement category	IV 300 V	IV 300 V	IV 300 V	III 300 V	IV 600 V	IV 600 V	IV 600 V
The degree of protection of the housing	IP40	IP40	IP40	IP40	IP67	IP67	IP67

Parameters of photovoltaic installations

Measurement functions	Display range	Resolution	Accuracy
Open circuit voltage U _OC	0.0 Ω… 1000 V	FROM 0.1 V	from ± (3% in m + 2 digits)
Short-circuit current I _SC	0.00 Ω ... 20.00 A	0.1 A	± (3% m + 0.10 A)