MPI-520
Catalog index: WMGBMPI520
Multi-Function Meter Of Electrical System Parameters
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Professional measurements for every budget
Versatile yet simple to use, the Sonel MPI-520 multifunctional meter for electrical installations performs its tasks flawlessly when measuring the parameters of electrical installations. The instrument has been developed to meet the needs of installers as well as measurement engineers. Intuitive operation will allow beginners to use the device, while advanced measuring capabilities will meet the expectations of the most demanding specialists. A number of modern solutions have been applied in the meter, which translate into additional functions and greater capabilities of the device.
In this way the Sonel MPI-520 meter significantly improves the performance of measurements of electrical installations.
The cost-effective and versatile Sonel MPI-520 meter is a proven choice for users looking for a simple to use, precise instrument that combines functions of several devices for electric shock measurements. With the use of one meter, it is possible to perform the measurement of short-circuit loop impedance (also in circuits with RCD switches), the measurement of earth resistance as well as testing of parameters of residual current devices, types AC, A and B. Extended capabilities, precision of measurements and application of pioneer solutions combined with a favourable price make this model of the meter a proven and reliable choice.
Features
The meter offers a wide range of functionalities. It combines the measuring capabilities of several devices, while ensuring equally good accuracy. The device 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 (3-pole method),
- continuity of protective and equipotential bondings,
- phase sequence test,
- AC voltage and AC current, frequency,
- cosφ, active (P), reactive (Q) and apparent (S) power (using clamp).
Additional functions
- Checking the correctness of PE connection using a contact electrode.
- Measurement of voltage (0 … 500 V) and network frequency.
- Memory of 990 results.
- Wireless data transmission to a computer.
Application areas
MPI-520 is simple in design and use, providing user with many measurement options. It may be successfully used to test household and industrial electrical systems.
Inspection of electrical safety
Measurements can be easily automated with:
- auto mode of residual current devices (RCD) tests,
- the WS adapter that can be used for testing systems via standard 230 V sockets,
- AutoISO-1000C adapter for automatic insulation resistance test of 3-, 4- and 5-conductor cables, without switching.
Increased resistance to environmental conditions
The 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 IP54. It is resistant to mechanical damage, and a special design allows you to easily protect the 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
You can easily transfer measurement data to your computer via USB port or wireless communication. 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.
Specification
Possible measurements:
Short-circuit loop measurement:
- impedance measurement with 23 A current (44 A phase-to-phase) – short-circuit resistor R=10 Ω,
- measurement range: 95…440 V, frequency 45…65 Hz,
Short-circuit loop measurement with resolution 0,01 Ω, in distribution network without tiggering RCD (IΔn≥30 mA):
- automatic calculation of short-circuit, detection of phase voltage and phase-to-phase voltage,
- additional UNI-Schuko plug for automatic measurement, AGT adapter for 3 phase network measurement.
Testing of general and selective RCD with the rated differential current of 10,30,100,300,500 and 1000 mA. (Type AC, A and B).
Measurement of insulation resistance:
- with test voltage 250 V, 500 V, 1000 V,
- measurement range up to 3 GΩ,
- UNI-Schuko plug for insulation measurement,
- automatic discharging after measurement,
- automatic measurement of all resistences in 3,4,5-wire cables using optional adapter AUTO-ISO,
- acoustic signals in 5 sec intervals for insulation resistance characteristic,
- safety measurement – protection against overvoltage.
Measurement of earthing resistance.
Bi-directional testing of PE wire continuity using 200 mA current.
- Autocalibration of test leads.
Phase sequence testing.
Memory is divided into 10 memory banks each of them containing 99 memory cells.
Battery charge indicator.
AUTO-OFF function.
USB interface.
Short-circuit loop impedance measurement ZL-PE, ZL-N, ZL-L
Measurement using 23/40 A current measurement range in accordance with IEC 61557: 0,13…1999,9 Ω
(for 1,2 m lead ):
| Range | Resolution | Accuracy |
| 0,00…19,99 Ω | 0,01 Ω | ±(5% m.v. + 3 dgt) |
| 20,0…199,9 Ω | 0,1 Ω | |
| 200…1999 Ω | 1 Ω |
rated voltage: 95…270 V (for ZL-PE i ZL-N) and 95…440 V (for ZL-L)
frequency: 45…65 Hz
Short-circuit loop impedance measurement ZL-PERCD
Measurement using 15 mA current measurement range in accordance with
IEC 61557: 0,50…1999,9 Ω
| Range | Resolution | Accuracy |
| 0,00…19,99 Ω | 0,01 Ω | ±(6% m.v. + 10 dgt) |
| 20,0…199,9 Ω | 0,1 Ω | ±(6% m.v. + 5 dgt) |
| 200…1999 Ω | 1 Ω |
rated voltage: 95…270 V
frequency: 45…65 Hz
Measurement of earthing RE
Rated voltage in accordance with IEC 61557 – 5:
- 0,5 Ω…1,99 kΩ for 50 V
- 0,56 Ω…1,99 kΩ for 25 V
| Range | Resolution | Accuracy |
| 0,00…9,99 Ω | 0,01 Ω | ±(2% m.v. + 4 dgt) |
| 10,0…99,9 Ω | 0,1 Ω | ±(2% m.v. + 3 dgt) |
| 100…999 Ω | 1 Ω | |
| 1,00…1,99 kΩ | 0,01 kΩ |
Insulation resistance measurement
Measurement range in accordance with IEC 61557 – 2:
- for UN = 50 V: 50 kΩ…250 MΩ
- for UN = 100 V: 100 kΩ…500 MΩ
- for UN = 250 V: 250 kΩ…1 GΩ
- for UN = 500 V: 500 kΩ…2 GΩ
- for UN = 1000 V: 1 MΩ…3 GΩ
| Display range*) | Resolution | Accuracy**) |
| 0…1999 kΩ | 1 kΩ | ±(3% m.v. + 8 dgt) |
| 2,00…19,99 MΩ | 0,01 MΩ | |
| 20,0…199,9 MΩ | 0,1 MΩ | |
| 200…999 MΩ | 1 MΩ | |
| 1,00…3,00 GΩ | 0,01 GΩ | ±(4% m.v. + 6 dgt) |
*) limited to measurement range.
**) with UNI-Schuko additional error ±2%.
Phase sequence
- phase sequence indicator: forward, reverse
- mains voltage range UL-L: 100…440 V (45…65 Hz) UL-L: 100…440 V (45…65 Hz)
- display of pase-to-phase voltages
Measurement of the active P, passive Q and apparent S power and cosφ
- Range of voltages ULN: 0…440 V
- Nominal frequency of the network: 45…65 Hz
- frequency measurement for voltage 50…440 V in range 45,0…65,0 Hz (accuracy max. ± 0,1%m.v. + 1 digit)
– measurement cosφ: 0,00…1,00 (resolution 0,01)
Low voltage test of the circuit and insulation continuity
Test of PE wire continuity using a ±200 mA current
| Range | Resolution | Accuracy |
| 0,00…19,99 Ω | 0,01 Ω | ±(2% m.v. + 3 dgt) |
| 20,0…199,9 Ω | 0,1 Ω | |
| 200…400 Ω | 1 |
Voltage on open terminals: 4…9 V
Test current at R<2 Ω: min. 200 mA at rated battery voltage
Autocalibration of test leads
Measurements for both polarizations of the current
RCD trigger and response time test tA (for tA mode)Measurement ranges
in accordance with IEC 61557: 0 ms … up to the upper bound of the displayed value
| Breaker Type | Test Current Multiplier |
Measurement Range |
Resolution | Accuracy |
| Standard | 0,5*IΔn | 0…300 ms | 1 ms | ± (2% m.v. + 2 dgt) |
| 1*IΔn | ||||
| 2*IΔn | 0…150 ms | |||
| 5*IΔn | 0…40 ms | |||
| Selective | 0,5*IΔn | 0…500 ms | ||
| 1*IΔn | ||||
| 2*IΔn | 0…200 ms | |||
| 5*IΔn | 0…150 ms |
Precision of the differential current: for 0,5*IΔn:-8…0% dla 1*IΔn, 2*IΔn, 5*IΔn: 0…8%
Measurement of the RCD triggering current (IA) for sine waveform testing current
| Selected Current |
Range | Resolution | Test Current |
Accuracy |
| 10 mA | 3,3…10,0 mA | 0,1 mA | 0,3xIΔ..1,0xIΔ | ± 5%IΔn |
| 30 mA | 9,0…30,0 mA | |||
| 100 mA | 33…100 mA | 1 mA | ||
| 300 mA | 90…300 mA | |||
| 500 mA | 150…500 mA | |||
| 1000 mA | 330…1000 mA | 1 mA |
It is possible to start the measurement from the positive or negative half of the forced leaking current
Measurement of the RDC triggering current (IA ) for a unidirectional half period sine
waveform test current with a 6 mA direct current offset
| Selected Current |
Range | Resolution | Test Current |
Accuracy |
| 10 mA | 4…20,0 mA | 0,1 mA | 0,4xIΔn..2,0xIΔn | ±10%IΔn |
| 30 mA | 12,0…42,0 mA | 0,4xIΔn..1,4xIΔn | ||
| 100 mA | 40,0…140 mA | 1 mA | ||
| 300 mA | 120…420 mA | |||
| 500 mA | 200…700 mA |
- a measurement is possible for a positive or negative forced leakage current
Measurement of the RCD triggering current (IA ) for direct testing current
| Selected Current |
Range | Resolution | Test Current |
Accuracy |
| 10 mA | 4,0…20,0 mA | 0,1 mA | 0,4xIΔn..2,0xIΔn | ±10%IΔn |
| 30 mA | 12,0…60,0 mA | 1 mA | ||
| 100 mA | 40…200 mA | |||
| 300 mA | 120…600 mA | |||
| 500 mA | 200…1000 mA |
- a measurement is possible for a positive or negative forced leakage current
„m.v.” measured value.
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