METREL MI 2885, Manual

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MI 2893 / MI 2892 / MI 2885 Table of contents
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1 Introduction ............................................................................................................................ 14
1.1 Main Features ......................................................................................................................... 15
1.2 Safety considerations .............................................................................................................. 16
1.3 Applicable standards ............................................................................................................... 17
1.4 Abbreviations .......................................................................................................................... 18
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Description .............................................................................................................................. 28
2.1 Front panel .............................................................................................................................. 28
2.2 Connector panel ...................................................................................................................... 29
2.3 Bottom view ............................................................................................................................ 30
2.4 Accessories .............................................................................................................................. 30
2.4.1 Standard accessories ............................................................................................................. 30
2.4.2 Optional accessories ............................................................................................................. 30
3 Operating the instrument ........................................................................................................ 31
3.1 Instrument status bar .............................................................................................................. 32
3.2 Instrument keys ....................................................................................................................... 33
3.3 Instrument memory (microSD card) ......................................................................................... 34
3.4 Instrument Main Menu ............................................................................................................ 34
3.4.1 Instrument submenus ........................................................................................................... 35
3.5 U, I, f ....................................................................................................................................... 37
3.5.1 Meter ..................................................................................................................................... 37
3.5.2 Scope ..................................................................................................................................... 39
3.5.3 Trend ..................................................................................................................................... 41
3.5.4 Voltage and current trends ................................................................................................... 41
3.6 Power ..................................................................................................................................... 44
3.6.1 Meter ..................................................................................................................................... 44
3.6.2 Trend ..................................................................................................................................... 47
3.7 Energy ..................................................................................................................................... 50
3.7.1 Meter ..................................................................................................................................... 50
3.7.2 Trend ..................................................................................................................................... 52
3.7.3 Efficiency ............................................................................................................................... 53
3.8 Harmonics / inter-harmonics ................................................................................................... 55
3.8.1 Meter ..................................................................................................................................... 55
3.8.2 Histogram (Bar) ..................................................................................................................... 57
3.8.3 Harmonics Average Histogram (Avg Bar) .............................................................................. 58
3.8.4 Trend ..................................................................................................................................... 60
3.9 Flickers .................................................................................................................................... 62
3.9.1 Meter ..................................................................................................................................... 62
3.9.2 Trend ..................................................................................................................................... 63
3.10 Phase Diagram ........................................................................................................................ 64
3.10.1 Phase diagram................................................................................................................... 64
3.10.2 Unbalance diagram ........................................................................................................... 65
3.10.3 Unbalance trend ............................................................................................................... 66
3.11 Temperature ........................................................................................................................... 67
3.11.1 Meter ................................................................................................................................ 68
3.11.2 Trend ................................................................................................................................. 68
3.12 Under deviation and over deviation ......................................................................................... 69
3.12.1 Meter ................................................................................................................................ 69