During Use ............................................................................................................................................................... 5
After Use .................................................................................................................................................................. 5
2. GENERAL DESCRIPTION ........................................................................................................................... 6
3. PREPARATION FOR USE ........................................................................................................................... 7
Initial Control ............................................................................................................................................................ 7
Power Supply ........................................................................................................................................................... 7
How To Adjust The Contrast .................................................................................................................................. 11
How To Set Date And Time ................................................................................................................................... 11
How To Set The Language .................................................................................................................................... 11
How To Adjust The Country ................................................................................................................................... 11
Calibrating the test leads ("CAL" Mode) ..........................................................................................................................14
Results of "AUTO" mode .................................................................................................................................................17
Results of "RT+" and "RT-" modes ..................................................................................................................................17
Results of "MAN" mode ...................................................................................................................................................23
Results of "TMR" mode....................................................................................................................................................24
"MAN" and "TIMER" mode faulty cases ...........................................................................................................................25
4.3. Backlight function ................................................................................................................................................... 10
6. SAFETY TEST FUNCTIONS .......................................................................................................................13
6.1. LOW: Continuity Test with 200mA Test Current ................................................................................................. 13
6.4. GROUND TEST: Soil Resistance and Resistivity Measurements ......................................................................... 30
6.4.1. Measurement procedure and results of "2-W"and "3-W" mode .......................................................................................30
6.4.3. "2-W", "3-W" and " " faulty cases ..................................................................................................................................34
7. POWER QUALITY .......................................................................................................................................36
Type of electrical system under test ................................................................................................................................37
How to set the fundamental frequency ............................................................................................................................37
How to set the Clamp Type..............................................................................................................................................38
How to set the current range............................................................................................................................................38
How to set the value of the transformer voltage ratio (TV RATIO) ..................................................................................38
How to enable/disable the password ...............................................................................................................................38
POWER QUALITY FUNCTIONS ........................................................................................................................... 46
EN-1
AMPROBE
7.4.1.
7.4.2.
7.4.3.
7.4.4.
7.5.1.
7.5.2.
7.5.3.
7.5.4.
DMIII MULTITEST
7.4. "VOLTAGE" function .............................................................................................................................................. 47
7.5. "CURRENT" function ............................................................................................................................................. 52
7.6. "POWER" function ................................................................................................................................................. 57
8.1. Using the instrument in a single-phase system...................................................................................................... 63
8.2. Using the Instrument in a three-phase 4-wire system ............................................................................................ 64
8.3. Using the Instrument in a three-phase 3-wire system ............................................................................................ 65
9.1. Saving Safety Test Results .................................................................................................................................... 67
9.2. Saving Displayed Values of POWER QUALITY Function ...................................................................................... 67
10.1. Start A Recording................................................................................................................................................... 68
10.2. During A Recording................................................................................................................................................ 70
10.2.1. MENU key ........................................................................................................................................................................70
10.2.2. Rotary Switch during a recording .....................................................................................................................................71
13.1. General Instruction................................................................................................................................................. 75
14.1. Technical Features ................................................................................................................................................ 76
14.1.1. Safety Test functions .......................................................................................................................................................76
14.1.2. POWER QUALITY function .............................................................................................................................................77
14.2.1. General ............................................................................................................................................................................78
14.2.2. Safety Test .......................................................................................................................................................................78
14.2.3. POWER QUALITY ...........................................................................................................................................................78
14.3.1.
14.3.2.
14.3.3.
14.3.4.
Mechanical Data ..............................................................................................................................................................79
Power supply ...................................................................................................................................................................79
10.3. Stopping a Recording / Energy Measurement ....................................................................................................... 71
11.1. SAFETY TEST MEMORY...................................................................................................................................... 72
14.3. General Specifications ........................................................................................................................................... 79
15. SERVICE .....................................................................................................................................................81
16. PRACTICAL REPORTS FOR ELECTRICAL TESTS .................................................................................82
15.2. SERVICE ............................................................................................................................................................... 81
16.1. Continuity Test On Protective Conductors ............................................................................................................. 82
16.2. Check of the Circuit Separation ............................................................................................................................. 83
16.3. Measurement Of Floor Insulation Resistance In Medical Rooms Cei 64-4 ............................................................ 86
16.6. Voltage Anomalies (Voltage Sag and Surge)......................................................................................................... 91
16.7. Voltage and current Harmonics ............................................................................................................................. 91
16.7.1.
16.7.2.
16.7.3.
16.7.4.
Theory ..............................................................................................................................................................................91
Limit values for harmonics ...............................................................................................................................................93
Presence of harmonics: causes .......................................................................................................................................93
Presence of harmonics: consequences ...........................................................................................................................94
16.8. Power and Power Factor definition ........................................................................................................................ 94
16.8.1. Conventions on powers and power factors ......................................................................................................................96
16.8.2. 3 Phase 3 Wire System ...................................................................................................................................................97
16.9.1. Integration periods ...........................................................................................................................................................98
16.9.2. Power factor calculations .................................................................................................................................................98
16.9.3. Voltage Anomalies and Periods Analysis comparison .....................................................................................................98
