Manual
M72 - M73 - M74 - M75
EN - 1
Table of contents
1. SAFETY PRECAUTIONS AND PROCEDURES ...................................................................... 2
1.1. Preliminary instructions .................................................................................................................... 2
1.2. During use ........................................................................................................................................ 3
1.3. After use ........................................................................................................................................... 3
1.4. Overvoltage categories - definitions ................................................................................................. 3
2. GENERAL DESCRIPTION ....................................................................................................... 4
2.1. Features ........................................................................................................................................... 4
2.2. TRMS value and mean value - Definitions ....................................................................................... 4
2.3. True root measn square value and crest factor - Definitions ........................................................... 4
3. PREPARATION FOR USE ....................................................................................................... 5
3.1. Preliminary checks ........................................................................................................................... 5
3.2. Power supply .................................................................................................................................... 5
3.3. Calibration ........................................................................................................................................ 5
3.4. Storage ............................................................................................................................................. 5
4. OPERATING INSTRUCTIONS ................................................................................................. 6
4.1. Instrument description ...................................................................................................................... 6
4.2. Switch on the instrument .................................................................................................................. 7
4.3. Disable Auto Power OFF.................................................................................................................. 7
4.4. Modify full scale of external transducers .......................................................................................... 7
4.5. Set minimum limit threshold on insulation measurement ................................................................. 7
4.6. HOLD, MAX/MIN/AVG, PEAK± ........................................................................................................ 8
4.6.1. HOLD ......................................................................................................................................................... 8
4.6.2. MAX/MIN/AVG ........................................................................................................................................... 8
4.6.3. PEAK± ....................................................................................................................................................... 8
4.7. V Hz: DC/AC voltage and frequency measurement .................................................................... 9
4.7.1. Anomalous cases which may occur during V Hz measurements ........................................................... 11
4.8. A Hz: DC/AC current and frequency measurement .................................................................. 12
4.8.1. Anomalous cases which may occur during A Hz measurements .......................................................... 14
4.9. : Resistance measurement and continuity test ....................................................................... 15
4.9.1. "CAL" mode ............................................................................................................................................. 15
4.9.2. Anomalous cases which may occur during measurement .............................................................. 16
4.10. : Phase sequence and phase conformity measurement ............................................................ 17
4.10.1. Anomalous cases which may occur during tests ..................................................................................... 20
4.11. LAN: Cabling test (M75) ................................................................................................................. 21
4.11.1. Anomalous cases which may occur during LAN tests .............................................................................. 22
4.11.2. SPLIT PAIRS - explication note ............................................................................................................... 22
4.11.3. Cabling errors detected by the instrument ............................................................................................... 23
4.12. 0.2A: Continuity test on earth conductors (M72, M74, M75) ....................................................... 24
4.12.1. "CAL" mode ............................................................................................................................................. 25
4.12.2. Anomalous cases which may occur during 0.2A tests ........................................................................... 27
4.13. M: Insulation measure (M72, M74, M75) ..................................................................................... 28
4.13.1. Anomalous cases which may occur during M tests ............................................................................... 29
4.14. RCD: Tests on AC type RCDs (M73, M74, M75) ........................................................................... 30
4.14.1. Anomalous cases which may occur during RCD tests ............................................................................. 31
4.15. Ra : Measurement of global earth resistance (M73, M74, M75) ................................................ 33
4.15.1. Anomalous cases which may occur during Ra tests ............................................................................ 35
4.16. AUTO: Automatic cycle of measurements (M74, M75) .................................................................. 37
5. MAINTENANCE ...................................................................................................................... 39
5.1. General ........................................................................................................................................... 39
5.2. Battery replacement ....................................................................................................................... 39
5.3. Cleaning ......................................................................................................................................... 39
5.4. End of life ....................................................................................................................................... 39
6. TECHNICAL SPECIFICATIONS ............................................................................................. 40
6.1. Reference guidelines ...................................................................................................................... 42
6.2. General specifications .................................................................................................................... 42
6.3. Environment ................................................................................................................................... 42
6.3.1. Environmental conditions ......................................................................................................................... 42
6.4. Accessories .................................................................................................................................... 42
7. SERVICE ................................................................................................................................ 43
7.1. Warranty conditions ........................................................................................................................ 43
7.2. After-sale service ............................................................................................................................ 43