Sonel MPI-540 - Resistance-to-earth

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MPI-540 – USER MANUAL

3.5 Measurement of resistance-to-earth

3.5.1 Settings of measurements

Select item R

Touch the parameter drop-down

menu Un (measuring voltage se-

lection).

Select the required measuring

voltage from the list.

Main Page

Table of Contents5
Safety9
Main Menu10
Meter Settings11
Setting Date and Time12
Automatic Shutdown13
Display Parameters15
Settings of Measurements16
Sub-Menu Measurement Settings16
Sub-Menu Edit Fuses18
Adding Security Characteristics18
Adding Fuses22
Communication26
USB Communication26
Update26
Regional Settings27
Meter Information28
Measurements29
Diagnostics Performed by the Meter - Limits30
Measurement of Alternating Voltage and Frequency30
Checking the Correctness of PE (Protective Earth) Connections31
Measurement of Fault Loop Parameters32
Settings of Measurements32
Measurement of Fault Loop Parameters in the L-N and L-L Circuits35
Measurement of Fault Loop Parameters in the L-PE Circuit39
Measurement of Fault Loop Impedance in L-PE Circuit Protected with a Residual Current Device (RCD)42
Prospective Short-Circuit Current45
Measurement of Fault Loop Impedance in IT Networks47
Measurement of Resistance-To-Earth48
Settings of Measurements48
Measurement of Resistance to Earth Using 3P Method51
Measurement of Resistance to Earth Using 4P Method55
Measurement of Resistance to Earth Using 3P + Clamps Method59
Measurement of Resistance to Earth Using Double Clamp Method63
Measuring Soil Resistivity66
Settings of Measurements66
Main Elements of the Screen68
Soil Resistivity Measurements69
Measurement of RCD Parameters73
Settings of Measurements73
Measurement of RCD Disconnection Current78
Measurement of RCD Disconnection Time81
Measurements in IT Networks84
Measurement of Insulation Resistance85
Settings of Measurements85
Measurement Using Probes90
Measurements Using UNI-Schuko Adapter (WS-03 and WS-04)92
Measurements Using Autoiso-1000C95
Low-Voltage Measurement of Resistance99
Measurement of Resistance99
Measurement of Resistance of Protective Conductors and Equipotential Bonding with ±200 Ma Current102
Checking Sequence of Phases106
Checking the Motor Rotation Direction108
Illuminance Measurements110
Recorder112
Functional Description112
Main Elements of the Screen114
Top Bar115
Title Bar115
Main Window116
Information Bar on the Parameters of the Current Network116
Help116
Connecting the Measuring System117
Measuring Arrangements117
Verifying the Connection120
Recording Configuration121
Configuration Using the Meter121
Recording Configuration122
Analyzer Settings124
Hardware Settings - Clamps (Manner of Connecting)124
Settings - Regional Settings125
Managers - File Manager126
Data Viewing127
Data Preview128
LIVE Mode of the Network129
Transient Waveforms of Current and Voltages (Waveforms)129
Timeplot of Effective Values131
Live" Mode - Tabular View132
Vector Diagram of Fundamental Components (Phasor)134
Harmonics Graph/Table135
Switching the Recording On/Off137
Approximate Recording Times137
Recording Guidelines138
Recording Analysis138
Recording Timeplot141
Functional Description141
Selecting Parameters for the Timeplot142
Creating and Managing a Timeplot144
Harmonics Waveform Graph146
Energy Costs Calculator148
Functional Description148
Settings of the Energy Cost Calculator149
Energy Loss Calculator151
Functional Description151
Configuration of the Loss Calculator152
Memory of the Meter154
Memory of Measurements154
Memory Settings154
Structure of the Memory155
Fundamentals of Navigating the Memory Menu156
Adding a New Measurements Tree158
Entering the Measurement Result163
Viewing Saved Measurements164
Searching the Meter Memory166
Recorder Memory167
Microsd Memory Card167
USB External Memory (Flash Drive)167
Compatibility with Sonel Analysis Software168
PC Connection and Data Transmission168
Power Supply169
Monitoring of the Battery Charge Status169
Replacing Rechargeable Batteries169
Charging the Rechargeable Batteries170
General Rules for Using Li-Ion Rechargeable Batteries171
Cleaning and Maintenance172
Storage172
Dismantling and Utilisation172
Technical Data173
Basic Data173
Measurement of Alternating Voltages (True RMS)173
Frequency Measurement173
Measurement of Fault Loop Impedance Z173
L-Pe , Z L-N , Z L-L173
Measurement of Fault Loop Impedance Z174
L-Pe[Rcd]174
Measurement of Parameters of RCD175
Measurement of Resistance-To-Earth R177
Low-Voltage Measurement of Continuity of Circuit and Resistance178
Measurement of Insulation Resistance179
Light Measurements180
Phase Sequence181
Motor Rotation181
Recorder Data181
Inputs181
Sampling and RTC182
Voltage Measurement182
Measurement of Current (True RMS)183
Frequency Measurement183
Measuring Harmonics184
Unbalance184
Power and Energy Measurement184
Estimated Measurement Uncertainty Values for Power and Energy185
Other Technical Data186
Additional Data187
Additional Uncertainties According to IEC 61557-2187
Additional Uncertainties According to IEC 61557-3 (Z)187
Iso )187
Additional Uncertainties According to IEC 61557-4 (R ±200 Ma)187
Additional Uncertainties of Earth Resistance Measurement187
Additional Uncertainties According to IEC 61557-6 (RCD)188
List of Reference Standards189
Accessories189
Standard Accessories189
Additional Accessories190
Clamps196
Clamps C-4A197
Clamps C-5A198
Clamps C-6A200
Clamps C-7A201
Clamps F-1A, F-2A, F-3A202
Clamps N-1204
Positions of the Meter's Cover205
Manufacturer205
Laboratory Services206

Sonel MPI-540 - Resistance-to-earth

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