Sonel MPI-520 User Manual

MPI-520 – USER MANUAL
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CONTENTS
1 Safety ................................................................................................................ 5
2 Menu .................................................................................................................. 6
2.1 Wireless transmission .............................................................................................. 6
2.2 Settings of measurements ........................................................................................ 7
2.2.1 Network voltage and frequency ......................................................................................... 7
2.2.2 Main result of short circuit loop impedance measurement ................................................. 8
2.2.3 Measurement settings ....................................................................................................... 8
2.2.4 Cell autoincrementing ....................................................................................................... 8
2.3 Settings of the meter ................................................................................................ 9
2.3.1 LCD contrast ..................................................................................................................... 9
2.3.2 LCD backlight .................................................................................................................. 10
2.3.3 Auto-OFF settings ........................................................................................................... 10
2.3.4 Date and time .................................................................................................................. 10
2.3.5 Factory (default) settings ................................................................................................. 11
2.3.6 Program update .............................................................................................................. 11
2.4 Language selection ................................................................................................ 11
2.5 Information about manufacturer ............................................................................. 11
3 Measurements ................................................................................................ 12
3.1 Measurement of alternating voltage and frequency ............................................... 12
3.2 Checking correctness of PE (protective earth) connections ................................... 12
3.3 Measurement of current, active power, reactive power, apparent power and cosφ
coefficient ............................................................................................................... 13
3.4 Measurement of short circuit loop parameters ....................................................... 14
3.4.1 Measurement of short circuit loop parameters in L-N and L-L circuit ............................... 14
3.4.2 Measurement of short circuit loop parameters in L-PE circuit .......................................... 16
3.4.3 Measurement of short circuit loop impedance in L-PE circuit protected with residual
current device (RCD) ...................................................................................................... 18
3.4.4 Prospective short-circuit current ...................................................................................... 19
3.5 Measurement of resistance-to-earth ...................................................................... 20
3.6 Measurement of RCD parameters ......................................................................... 23
3.6.1 Measurement of RCD disconnection current ................................................................... 23
3.6.2 Measurement of RCD disconnection time ....................................................................... 25
3.6.3 Automatic measurement of RCD parameters .................................................................. 27
3.7 Measurement of insulation resistance .................................................................... 30
3.7.1 Double-lead measurement .............................................................................................. 30
3.7.2 Measurements with AutoISO-1000c adapter ................................................................... 33
3.7.3 Measurements by means of leads with UNI-Schuko outlet plug (WS-03 and WS-04) ...... 34
3.8 Low-voltage measurement of resistance ................................................................ 36
3.8.1 Measurement of resistance of protective conductors and equipotential bonding with ±200
mA current ...................................................................................................................... 36
3.8.2 Measurement of resistance ............................................................................................. 38
3.8.3 Calibration of test leads ................................................................................................... 39
3.9 Checking sequence of phases ............................................................................... 40
4 Memory of measurement result data ........................................................... 42
4.1 Recording measurement result data in the memory ............................................... 42
4.2 Viewing memory data ............................................................................................. 43

Sonel MPI-520 Specifications

General

Brand	Sonel
Model	MPI-520
Category	Measuring Instruments
Language	English