HT instruments MACROTEST G3 User Manual
Page 2
MACROTESTG3 - COMBIG3
EN - 1
Table of contents:
1.
PRECAUTIONS AND SAFETY MEASURES ............................................................... 3
1.1.
Preliminary instructions ..................................................................................................... 3
1.2.
During use ......................................................................................................................... 4
1.3.
After use ............................................................................................................................ 4
1.4.
Definition of measurement (overvoltage) category ............................................................ 4
2.
GENERAL DESCRIPTION ........................................................................................... 5
2.1.
Foreword ........................................................................................................................... 5
2.2.
Instrument functions .......................................................................................................... 6
3.
PREPARATION FOR USE ........................................................................................... 7
3.1.
Initial checks ...................................................................................................................... 7
3.2.
Instrument power supply ................................................................................................... 7
3.3.
Calibration ......................................................................................................................... 7
3.4.
Storage .............................................................................................................................. 7
4.
NOMENCLATURE ........................................................................................................ 8
4.1.
Instrument description ....................................................................................................... 8
4.2.
Description of measuring leads ......................................................................................... 8
4.3.
Keyboard description ......................................................................................................... 9
4.4.
Display description ............................................................................................................ 9
4.5.
Initial screen ...................................................................................................................... 9
5.
GENERAL MENU ....................................................................................................... 10
5.1.
Instrument settings .......................................................................................................... 10
5.1.1.
Language ............................................................................................................................... 10
5.1.2.
Automatic Power OFF for display and key sound ................................................................. 11
5.1.3.
System ................................................................................................................................... 11
5.1.4.
Operator name entry .............................................................................................................. 11
5.1.5.
System date/time setting ........................................................................................................ 11
6.
OPERATING INSTRUCTIONS ................................................................................... 12
6.1.
LOW
: Continuity of protective conductors .................................................................... 12
6.1.1.
Anomalous situations ............................................................................................................. 15
6.2.
M
: Measurement of insulation resistance ..................................................................... 16
6.2.1.
Anomalous situations ............................................................................................................. 19
6.3.
RCD: Test on differential switches .................................................................................. 20
6.3.1.
AUTO mode ........................................................................................................................... 24
6.3.2.
x½, x1, x2, x5 modes ............................................................................................................. 25
6.3.3.
Mode x1 – Test on RCDs with delay time .............................................................................. 25
6.3.4.
Mode ................................................................................................................................. 26
6.3.5.
Test on earth leakage relay RCD .......................................................................................... 27
6.3.6.
Anomalous situations ............................................................................................................. 28
6.4.
LOOP: Line impedance/Loop and overall earth resistance ............................................. 31
6.4.1.
Test types ............................................................................................................................... 33
6.4.2.
STD Mode – Generic test ...................................................................................................... 34
6.4.3.
Mode kA – Verify of breaking capacity of protection device .................................................. 37
6.4.4.
Mode I
2
t – Verify of protection against short-circuit ............................................................... 39
6.4.5.
Mode
- Verify of protection coordination ..................................................................... 42
6.4.6.
Verify of protection against indirect contacts (TN system) .................................................... 44
6.4.7.
Verify of protection against indirect contacts (IT systems) .................................................... 46
6.4.8.
Verify of protection against indirect contacts (TT systems) ................................................... 47
6.4.9.
Impedance measurement by means of the accessory IMP57 .............................................. 49
6.4.10.
Anomalous situations ............................................................................................................. 51
6.5.
SEQ: Phase sequence and phase concordance test ...................................................... 53
6.5.1.
Anomalous situations ............................................................................................................. 56
6.6.
LEAKAGE: Leakage current measurement ..................................................................... 57
6.7.
EARTH: Measurement of earth resistance ...................................................................... 59
6.7.1.
3-wire or 2-wire earth measurement and 4-wire ground resistivity ....................................... 59
6.7.2.
Earth measurement with optional clamp T2100 .................................................................... 65
6.7.3.
Anomalous situations in 3-wire and 2-wire earth measurements .......................................... 68
6.8.
AUX: Measure of ambient parameters through external probes ..................................... 69