Gx Series
EN - 2
6.5. SEQ: Phase sequence and phase concordance test ...................................................... 66
Anomalous situations ............................................................................................................. 69
6.5.1.
6.6. LEAKAGE: Leakage current measurement ..................................................................... 70
6.7. EARTH: Measurement of earth resistance ...................................................................... 72
3-wire or 2-wire earth measurement and 4-wire ground resistivity ........................................ 72
6.7.1.
3-wire or 2-wire earth measure – USA, Extra Europe and Germany countries ..................... 78
6.7.2.
Earth measurement with optional clamp T2100 .................................................................... 81
6.7.3.
Anomalous situations in 3-wire and 2-wire earth measurements .......................................... 84
6.7.4.
6.8. AUX: Measure of ambient parameters via external probes ............................................. 85
6.9. ∆V%: Voltage drop of main lines ..................................................................................... 87
Anomalous situations ............................................................................................................. 91
6.9.1.
6.10. AUTO TEST: automatic test sequence (NoTrip , RCD, M) ........................................ 93
AutoTest in TT systems ........................................................................................................ 94
6.10.1.
AutoTest in TN systems ........................................................................................................ 96
6.10.2.
Anomalous situations ............................................................................................................. 98
6.10.3.
6.11. PQA: Real time measurement of main parameters ....................................................... 101
6.12. EVSE: Safety test for electric car charging stations ...................................................... 104
7.
OPERATIONS WITH THE MEMORY ....................................................................... 124
7.1. Saving measurements ................................................................................................... 124
7.2. Recalling measurements and deleting the memory ...................................................... 125
Anomalous situations ........................................................................................................... 126
7.2.1.
8.
CONNECTING THE INSTRUMENT TO A PC OR MOBILE DEVICES .................... 127
8.1. Connection to iOS/Android devices through WiFi ......................................................... 127
9.
USE OF STRAP SET ............................................................................................... 128
10.
MAINTENANCE ....................................................................................................... 131
10.1. General information ....................................................................................................... 131
10.2. Replacement of the batteries ........................................................................................ 131
10.3. Cleaning the instrument ................................................................................................ 131
10.4. End of life ...................................................................................................................... 131
11.
TECHNICAL SPECIFICATIONS .............................................................................. 132
11.1. Technical characteristics ............................................................................................... 132
11.2. Reference guidelines ..................................................................................................... 137
11.3. General characteristics .................................................................................................. 137
11.4. Environment .................................................................................................................. 137
Environmental conditions for use ......................................................................................... 137
11.4.1.
11.5. Accessories ................................................................................................................... 137
12.
SERVICE .................................................................................................................. 138
12.1. Warranty conditions ....................................................................................................... 138
12.2. Service .......................................................................................................................... 138
13.
THEORETICAL APPENDIXES ................................................................................. 139
13.1. Continuity of protective conductors ............................................................................... 139
13.2. Insulation resistance ...................................................................................................... 140
13.3. Checking circuit separation ........................................................................................... 141
13.4. Test on differential switches (RCD) ............................................................................... 143
13.5. Verify of the breaking capacity of protection devices .................................................... 144
13.6. Verify of protection against indirect contacts in TN systems ......................................... 145
13.7. No trip test in TN systems ............................................................................................. 147
13.8. Verify of protection against indirect contacts in TT systems ......................................... 148
13.9. Verify of protection against indirect contacts in IT systems ........................................... 149
13.10. Verify of protection coordination L-L, L-N and L-PE ...................................................... 150
13.11. Verify of the protection against short circuits – Test I2t ................................................. 152
13.12. Verification of voltage drop on main lines ...................................................................... 153
13.13. Measurement of earth resistance in TN systems .......................................................... 154
13.14. Voltage and current Harmonics ..................................................................................... 159
Presence of harmonics: causes ........................................................................................... 160
13.14.1.
Presence of harmonics: consequences ............................................................................... 161
13.14.2.
13.15. Calculation of powers and power factors ...................................................................... 162
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