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MPI-520 – USER MANUAL

The MPI-520 meter is a modern, easy and safe in use measuring device. Please acquaint yourself with

the present manual in order to avoid measuring errors and prevent possible problems related to opera-

tion of the meter.

Main Page

Table of Contents5
Safety7
Menu8
Wireless Transmission8
Settings of Measurements9
Network Voltage and Frequency9
Main Result of Short Circuit Loop Impedance Measurement10
Measurement Settings10
Cell Autoincrementing10
Settings of the Meter11
LCD Contrast11
LCD Backlight12
Auto-OFF Settings12
Date and Time12
Factory (Default) Settings13
Program Update13
Language Selection13
Information about Manufacturer13
Measurements14
Measurement of Alternating Voltage and Frequency14
Checking Correctness of PE (Protective Earth) Connections14
Measurement of Current, Active Power, Reactive Power, Apparent Power and Cosφ Coefficient15
Measurement of Short Circuit Loop Parameters16
Measurement of Short Circuit Loop Parameters in L-N and L-L Circuit16
Measurement of Short Circuit Loop Parameters in L-PE Circuit18
Measurement of Short Circuit Loop Impedance in L-PE Circuit Protected with Residual Current Device (RCD)20
Prospective Short-Circuit Current21
Measurement of Resistance-To-Earth22
Measurement of RCD Parameters25
Measurement of RCD Disconnection Current25
Measurement of RCD Disconnection Time27
Automatic Measurement of RCD Parameters29
Measurement of Insulation Resistance32
Double-Lead Measurement32
Measurements with Autoiso-1000C Adapter35
Measurements by Means of Leads with UNI-Schuko Outlet Plug (WS-03 and WS-04)36
Low-Voltage Measurement of Resistance38
Measurement of Resistance of Protective Conductors and Equipotential Bonding with ±200 Ma Current38
Measurement of Resistance40
Calibration of Test Leads41
Checking Sequence of Phases42
Memory of Measurement Result Data44
Recording Measurement Result Data in the Memory44
Viewing Memory Data45
Deleting Memory Data48
Data Transmission49
Computer Connection Accessories49
Data Transmission with USB Joint49
Data Transmission with OR-1 Radio Module49
Power Supply51
Monitoring of the Power Supply Voltage51
Replacement of Batteries (Accumulators)52
Charging of Accumulators52
General Principles Regarding Using Ni-MH Accumulators54
Cleaning and Maintenance54
Storage55
Dismantling and Utilisation55
Technical Data55
Basic Data55
Additional Data63
Additional Uncertainties According to IEC 61557-263
Additional Uncertainties According to IEC 61557-3 (Z)63
Iso )63
Additional Uncertainties According to IEC 61557-4 (R ±200 Ma)63
Additional Uncertainties According to IEC 61557-564
Additional Uncertainties According to IEC 61557-6 (RCD)65
Accessories65
Standard Accessories65
Optional Accessories65
Positions of the Meter's Cover66
Manufacturer66

Sonel MPI-520 - Page 4

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