METREL EurotestXC MI 3152, Instruction Manual

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MI 3152(H) Eurotest XC (2,5 kV) Table of contents
5
7.24 llumination ............................................................................................................... 147
7.25 AUTO TT
– Auto test for TT earthing system .......................................................... 149
7.26 AUTO TN (RCD)
– Auto test for TN earthing system with RCD ............................... 151
7.27 AUTO TN
– Auto test for TN earthing system without RCD ..................................... 153
7.28 AUTO IT
– Auto test for IT earthing system (MI 3152 only) .................................... 155
7.29 Z auto - Auto test for fast line and loop testing......................................................... 157
7.30 Locator .................................................................................................................... 159
7.31 Functional inspections ............................................................................................. 161
8 Auto Sequences
® ......................................................................................................... 162
8.1 Select
ion of Auto Sequences® ................................................................................ 162
8.1.1 Searching in Auto Sequences
® menu ................................................................. 163
8.2
Organization of an Auto Sequence® ....................................................................... 165
8.2.1 Auto Sequences
® view menu.............................................................................. 165
8.2.2 Step by step execution of Auto Sequences
® ....................................................... 167
8.2.3 Auto Sequence
® result screen ............................................................................ 168
8.2.4 Auto Sequence
® memory screen ........................................................................ 169
9 Communication ............................................................................................................. 171
9.1 USB and RS232 communication ............................................................................. 171
9.2 Bluetooth communication ........................................................................................ 171
9.3 Bluetooth and RS232 communication with scanners ............................................... 172
10 Upgrading the instrument ............................................................................................ 173
11 Maintenance .................................................................................................................. 174
11.1 Fuse replacement ................................................................................................... 174
11.2 Cleaning .................................................................................................................. 174
11.3 Periodic calibration .................................................................................................. 175
11.4 Service .................................................................................................................... 175
12 Technical specifications ............................................................................................... 176
12.1 R iso
– Insulation resistance .................................................................................... 176
12.2 Diagnostic test (MI 3152H only)............................................................................... 177
12.3 R low
– Resistance of earth connection and equipotential bonding ......................... 177
12.4 Continuity
– Continuous resistance measurement with low current ......................... 177
12.5 RCD testing ............................................................................................................. 178
12.5.1 RCD Uc
– Contact voltage ............................................................................... 178
12.5.2 RCD t
– Trip-out time ....................................................................................... 179
12.5.3 RCD I
– Trip-out current .................................................................................. 179
12.6 RCD Auto ................................................................................................................ 180
12.7 Z loop
– Fault loop impedance and prospective fault current ................................... 180
12.8 Zs rcd
– Fault loop impedance and prospective fault current in system with RCD ... 181
12.9 Z loop m

– High precision fault loop impedance and prospective fault current ...... 181
12.10 Z line
– Line impedance and prospective short-circuit current ................................. 182
12.11 Z line m

– High precision line impedance and prospective short-circuit current .... 182
12.12 Voltage Drop ........................................................................................................... 183
12.13 Z auto, AUTO TT, AUTO TN, AUTO TN (RCD), AUTO IT ....................................... 183
12.14 Rpe
– PE conductor resistance ............................................................................... 184
12.15 Earth
– Earth resistance (3-wire measurement) ...................................................... 184
12.16 Earth 2 clamp
– Contactless earthing resistance measurement (with two current
clamps) ............................................................................................................................... 185
12.17 Ro
– Specific earth resistance ................................................................................. 185
12.18 Voltage, frequency, and phase rotation ................................................................... 186
12.18.1 Phase rotation ................................................................................................. 186