Table Of Contents - Sonel MPI-502 Operation Manual

1 SAFETY .................................................................................................................... 5
2 MEASUREMENTS .................................................................................................. 6
2.1 S
WITCHING ON AND OFF
2.2 S
ELECTING GENERAL MEASUREMENT PARAMETERS
2.3 R
EMEMBERING THE LAST MEASUREMENT RESULT
2.4 A
LTERNATING VOLTAGE MEASUREMENT
2.5 V
OLTAGE AND FREQUENCY MEASUREMENT
2.6 V
ERIFYING THE PROTECTIVE CONDUCTOR CONNECTION CORRECTNESS
2.7 M
EASUREMENTS OF FAULT LOOP PARAMETERS
2.7.1 Selecting the lead length ................................................................................ 9
2.7.2 Prospective short-circuit current ................................................................. 10
2.7.3 Measurement of fault loop parameters in the L-N and L-L systems ............ 11
2.7.4 Measurement of fault loop parameters in the L-PE system ......................... 13
2.7.5 Measurement of fault loop impedance in the L-PE system protected by an
RCD ............................................................................................................. 15
2.8 M
EASUREMENT OF RESISTANCE TO EARTH
2.9 M
EASUREMENT OF THE RESIDUAL CURRENT DEVICE PARAMETERS
2.9.1 Measurement of the RCD tripping current .................................................. 18
2.9.2 Measurement of the RCD tripping time ....................................................... 20
2.9.3 Automatic RCD parameters measurement ................................................... 22
2.10 L -
OW VOLTAGE RESISTANCE MEASUREMENT
2.10.1 Continuity measurements of protective conductors and equipotential
bonding (with the
2.10.2 Low-current resistance measurement .......................................................... 29
Test leads resistance compensation - auto-zeroing ..................................... 31
2.10.3
3 MEMORY OF MEASUREMENT RESULTS..................................................... 32
3.1 E
NTERING THE MEASUREMENT RESULTS TO TE MEMORY
3.2 C
HANGING THE CELL AND BANK NUMBER
3.3 B
ROWSING THE MEMORY
3.4 C
LEARING THE MEMORY
3.4.1 Clearing the bank ........................................................................................ 36
3.4.2 Clearing the whole memory ......................................................................... 37
3.5 C
OMMUNICATION WITH COMPUTER
3.5.1 Package for cooperation with computer ...................................................... 38
3.5.2 Data transmission ........................................................................................ 38
4 TROUBLESHOOTING ......................................................................................... 39
5 POWER SUPPLY .................................................................................................. 40
5.1 M
ONITORING THE POWER SUPPLY VOLTAGE
CONTENTS
,
DISPLAY BACKLIGHT

200mA current) ............................................................. 28
.................................................................................... 34
..................................................................................... 36
MPI-502 OPERATING MANUAL, version 1.16
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