Sonel MPI-530-IT - Default Chapter; Table of Contents

OPERATING MANUAL MPI-530-IT version 1.06
3
CONTENTS
1 SAFETY .................................................................................................................... 6
2 MENU ........................................................................................................................ 7
2.1 WIRELESS TRANSMISSION ........................................................................................ 7
2.2 MEASUREMENT SETTINGS....................................................................................... 8
2.2.1 Earthing system, voltage and frequency ........................................................ 8
2.2.2 Main result of fault loop impedance measurement ........................................ 9
2.2.3 Measurement settings .................................................................................... 9
2.2.4 RCD AUTO measurement mode .................................................................. 10
2.2.5 Cell autoincrementing ................................................................................. 10
2.2.6 Resistivity measurement settings .................................................................. 11
2.2.7 Calibration of C-3 clamps ........................................................................... 11
2.2.8 Setting limits ................................................................................................ 12
2.3 METER SETTINGS ................................................................................................. 12
2.3.1 LCD contrast ............................................................................................... 13
2.3.2 LCD Backlight ............................................................................................. 14
2.3.3 Automatic shut-off (Auto-OFF) ................................................................... 14
2.3.4 Date and time............................................................................................... 15
2.3.5 Key sounds ................................................................................................... 15
2.3.6 Factory (default) settings ............................................................................. 16
2.3.7 Software update ........................................................................................... 16
2.3.8 Wireless communication .............................................................................. 16
2.4 LANGUAGE SELECTION ......................................................................................... 17
2.5 INFORMATION ABOUT MANUFACTURER ................................................................. 17
3 MEASUREMENTS ................................................................................................ 18
3.1 DIAGNOSTICS PERFORMED BY THE METER - LIMITS ................................................ 18
3.2 MEASUREMENT OF ALTERNATING VOLTAGE AND FREQUENCY ................................ 18
3.3 CHECKING THE CORRECTNESS OF PE (PROTECTIVE EARTH) CONNECTIONS ............ 19
3.4 MEASUREMENT OF FAULT LOOP PARAMETERS ....................................................... 19
3.4.1 Measurement of fault loop parameters in the L-N and L-L circuits ............ 20
3.4.2 Measurement of fault loop parameters in the L-PE circuit ......................... 23
3.4.3 Measurement of fault loop impedance in L-PE circuit protected with a
residual current device (RCD) .................................................................... 25
3.4.4 Prospective short-circuit current ................................................................. 26
3.4.5 Measurements in IT networks ...................................................................... 27
3.5 MEASUREMENT OF RESISTANCE TO EARTH ............................................................ 28
3.5.1 Measurement of resistance to earth using 3p method.................................. 28
3.5.2 Measurement of resistance to earth using 4p method.................................. 32
3.5.3 Measurement of resistance to earth using 3p + clamps method .................. 36
3.5.4 Measurement of resistance to earth using double clamp method ................ 40
3.5.5 Measuring soil resistivity ............................................................................. 44