MPI-506 –USER MANUAL
CONTENTS
1Safety ................................................................................................................5
2Quick start ........................................................................................................6
2.1 Switching on and off, display backlight ....................................................................6
2.2 Selecting general measurement parameters ...........................................................6
2.3 Remembering the last measurement result .............................................................6
3Measurements..................................................................................................8
3.1 AC voltage measurement.........................................................................................8
3.2 Voltage and frequency measurement...................................................................... 8
3.3 Checking the correctness of PE (protective earth) connections ..............................9
3.4 Fault loop parameters............................................................................................ 10
3.4.1 Selecting the lead length................................................................................................10
3.4.2 Prospective short-circuit current ....................................................................................11
3.4.3 Fault loop parameters in the L-N and L-L circuits...........................................................12
3.4.4 Fault loop parameters in the L-PE circuit.......................................................................15
3.4.5 Fault loop impedance in L-PE circuit protected with a residual current device (RCD) ....17
3.5 RCD parameters....................................................................................................19
3.5.1 RCD tripping current......................................................................................................19
3.5.2 RCD tripping time ..........................................................................................................22
3.5.3 Automatic measurements of RCD parameters...............................................................25
3.5.3.1 FULL mode.........................................................................................................25
3.5.3.2 STANDARD mode..............................................................................................29
3.6 Insulation resistance..............................................................................................32
3.6.1 Measurement of individual objects.................................................................................32
3.6.2 Additional information ....................................................................................................34
3.7 Low-voltage resistance measurement ...................................................................35
3.7.1 Test leads resistance compensation –auto-zeroing.......................................................35
3.7.2 Low-current resistance measurement............................................................................36
3.7.3 Measurement of resistance of protective conductors and equipotential bonding with
±200 mA current............................................................................................................38
3.8 Phase sequence .................................................................................................... 40
4Memory of measurement results..................................................................42
4.1 Entering the measurement results to the memory ................................................. 42
4.2 Changing the cell and bank number ......................................................................44
4.3 Browsing the memory ............................................................................................44
4.4 Clearing the memory.............................................................................................. 46
4.4.1 Clearing the bank...........................................................................................................46
4.4.2 Clearing the whole memory ...........................................................................................47
4.5 Communication with computer............................................................................... 48
4.5.1 Package for cooperation with computer.........................................................................48
4.5.2 Data transmission with Bluetooth 4.2 module ................................................................48
5Troubleshooting.............................................................................................49
6Power supply..................................................................................................51
6.1 Monitoring the power supply voltage......................................................................51
6.2 Replacing the batteries ..........................................................................................51
6.3 General rules of using the Nickel Metal Hydride (Ni-MH) batteries...........................52
7Cleaning and maintenance ...........................................................................52
