Name: Sonel MPI-536
Brand: Sonel
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MPI-536 – USER MANUAL

3.4.4 Fault loop impedance in L-PE circuit protected with a residual cur-

rent device (RCD)

Connect test leads according to Fig. 3.3 , Fig. 3.4 lub Fig. 3.5.

Fig. 3.3 Measurement in the TN-S system

Fig. 3.4 Measurement in the TT system

Table of Contents5
Safety8
Main Menu9
Meter Settings10
Setting Date and Time11
Automatic Shutdown12
Display Parameters13
Settings of Measurements14
Sub-Menu Measurement Settings14
Sub-Menu Edit Fuses16
Adding Fuse Characteristics16
Adding Fuses21
Communication23
USB Communication23
Connection to a Wi-Fi Network23
E-Mail Settings23
Update24
Update Via USB24
Update Via Wi-Fi24
Regional Settings25
Meter Information25
Measurements26
Diagnostics Performed by the Meter - Limits27
Measurement of Alternating Voltage and Frequency27
Checking the Correctness of PE (Protective Earth) Connections28
Fault Loop Parameters29
Settings of Measurements29
Fault Loop Parameters in the L-N and L-L Circuits31
Fault Loop Parameters in the L-PE Circuit34
Fault Loop Impedance in L-PE Circuit Protected with a Residual Current Device (RCD)37
Prospective Short-Circuit Current40
Measurement of Fault Loop Impedance in IT Networks41
Voltage Drop42
Resistance-To-Earth44
Settings of Measurements44
Earth Resistance Measurement with 3-Pole Method (R 3P)45
Earth Resistance Measurement with 4-Wire Method (R 4P)49
Earth Resistance Measurement with 3-Pole Method with Additional Clamp (R E 4P)49
Earth Resistance Measurement with 3-Pole Method with Additional Clamp (R 3P+C)53
E 3P+C)53
Earth Resistance Measurement with Two-Clamp Method (2C)57
Soil Resistivity60
Settings of Measurements60
Main Elements of the Screen61
Soil Resistivity Measurements (Ρ)62
RCD Parameters66
Settings of Measurements66
RCD Tripping Current69
RCD Tripping Time72
Measurements in IT Networks75
Automatic Measurements of RCD Parameters76
Setting Automatic Measurements of RCD Parameters76
Automatic Measurement of Rcds77
Insulation Resistance82
Settings of Measurements82
Measurement Using Probes85
Measurements Using UNI-Schuko Adapter (WS-03 and WS-04)87
Measurements Using Autoiso-250090
Graph of Measured Quantities as a Function of Time93
Low-Voltage Resistance Measurement94
Resistance Measurement94
Measurement of Resistance of Protective Conductors and Equipotential Bonding with ±200 Ma Current96
Phase Sequence100
Motor Rotation Direction101
Illuminance103
Auto Measurements105
Proceeding Auto Measurements105
Creating Measurement Procedures107
Memory of the Meter109
Memory Settings109
Structure of the Memory110
Fundamentals of Navigating the Memory Menu111
Adding a New Measurements Tree113
Entering the Measurement Result118
Viewing Saved Measurements119
Sharing Recorded Measurements121
Searching the Meter Memory122
Power Supply123
Monitoring of the Battery Charge Status123
Replacing Rechargeable Batteries123
Charging the Rechargeable Batteries124
General Rules for Using Li-Ion Rechargeable Batteries125
Cleaning and Maintenance126
Storage126
Dismantling and Utilisation126
Technical Data127
Basic Data127
Measurement of Alternating Voltages (True RMS)127
Frequency Measurement127
Measurement of Fault Loop Impedance Z127
L-Pe , Z L-N , Z L-L127
Measurement of Fault Loop Impedance Z128
L-Pe[Rcd]128
Measurement of Parameters of RCD129
Measurement of Resistance-To-Earth R132
Low-Voltage Measurement of Continuity of Circuit and Resistance133
Measurement of Insulation Resistance134
Light Measurements135
Phase Sequence136
Motor Rotation136
Other Technical Data137
Additional Data138
Additional Uncertainties According to IEC 61557-2138
Iso )138
Additional Uncertainties According to IEC 61557-3 (Z)138
Additional Uncertainties According to IEC 61557-4 (R ±200 Ma)138
Additional Uncertainties of Earth Resistance Measurement138
Additional Uncertainties According to IEC 61557-6 (RCD)139
List of Reference Standards140
Accessories140
Positions of the Meter's Cover141
Manufacturer141

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Sonel MPI-536 Specifications

General

Brand	Sonel
Model	MPI-536
Category	Measuring Instruments
Language	English

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Sonel MPI-536 User Manual

Table of Contents

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Sonel MPI-536 Specifications

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