Sonel MPI-506 - Safety

MPI-506 – USER MANUAL
3
CONTENTS
1 Safety ................................................................................................................ 5
2 Quick 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
3 Measurements .................................................................................................. 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
4 Memory 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
5 Troubleshooting ............................................................................................. 49
6 Power 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
7 Cleaning and maintenance ........................................................................... 52