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GroundTest
M71
EN – 1
Table of contents:
1.
SAFETY PRECAUTIONS AND PROCEDURES ......................................................... 2
1.1.
Preliminary instructions ..................................................................................................... 3
1.2.
During use ........................................................................................................................ 3
1.3.
After use ........................................................................................................................... 3
1.4.
Definition of measurement category (OVERVOLTAGE) .................................................. 4
2.
GENERAL DESCRIPTION .......................................................................................... 5
3.
PREPARING THE INSTRUMENT ............................................................................... 5
3.1.
Initial check ....................................................................................................................... 5
3.2.
Power supply .................................................................................................................... 5
3.3.
Calibration ......................................................................................................................... 5
3.4.
Storage ............................................................................................................................. 5
4.
WORKING INSTRUCTIONS ....................................................................................... 6
4.1.
Instrument description ...................................................................................................... 6
4.2.
Function keys description ................................................................................................. 6
4.2.1.
Switching on............................................................................................................................... 7
4.2.2.
Auto Power OFF ........................................................................................................................ 7
4.3.
Auto mode ........................................................................................................................ 7
4.4.
EARTH 2W:Two-wire earth resistance measurement ...................................................... 8
4.4.1.
EARTH 2W- Zero setting of cables ........................................................................................... 8
4.4.2.
EARTH 2W- Measurement procedure ..................................................................................... 10
4.4.3.
Message description for EARTH 2W measurement ................................................................ 12
4.5.
EARTH 3W: Three wire earth resistance measurement ................................................. 13
4.5.1.
EARTH 3W- Zero setting of cables ......................................................................................... 13
4.5.2.
EARTH 3W- Measurement procedure ..................................................................................... 15
4.5.3.
Message description for EARTH 3W measurement ................................................................ 17
5.
MAINTENANCE ........................................................................................................ 19
5.1.
General ........................................................................................................................... 19
5.2.
Battery replacement ........................................................................................................ 19
5.3.
Cleaning .......................................................................................................................... 19
5.4.
End of life ........................................................................................................................ 19
6.
TECHNICAL SPECIFICATIONS ............................................................................... 20
6.1.
Technical features .......................................................................................................... 20
6.1.1.
Safety standards ...................................................................................................................... 21
6.1.2.
General features ...................................................................................................................... 21
6.2.
Environment .................................................................................................................... 21
6.2.1.
Environmental conditions ......................................................................................................... 21
6.3.
Accessories .................................................................................................................... 21
7.
SERVICE................................................................................................................... 22
7.1.
Warranty terms ............................................................................................................... 22
7.2.
After sales service .......................................................................................................... 22
8.
PRACTICAL REPORTS FOR ELECTRICAL TESTS ................................................ 23
8.1.
Earth resistance measurement in TT systems ............................................................... 23
8.2.
Earth resistance measurement, volt ampere metric method .......................................... 24