IT9121 User’s Manual
Copyright © Itech Electronics Co., Ltd.
v
Content
Quality Certification and Assurance ....................................................................................................................... 1
Warranty ............................................................................................................................................................... 1
Limitation of Warranty .......................................................................................................................................... 1
Safety Symbols ...................................................................................................................................................... 1
Safety Precautions ................................................................................................................................................. 2
Environmental Conditions ..................................................................................................................................... 2
Regulatory Markings ............................................................................................................................................. 3
Waste Electrical and Electronic Equiment (WEEE) Directive ................................................................................... 3
Compliance Information ........................................................................................................................................ 4
Chapter1
Introduction ..................................................................................................................................... 1
1.1 Brief Introduction ............................................................................................................................................ 1
1.2 Introduction of front panels............................................................................................................................. 2
1.3 Introduction to keyboard ................................................................................................................................. 2
1.4 Introduction of Menu Function........................................................................................................................ 3
1.5 Introduction of Interface Display Information .................................................................................................. 5
1.6 Introduction of Interface Symbols.................................................................................................................... 5
1.7 Introduction of rear panels .............................................................................................................................. 6
Chapter2
Measurement Conditions ................................................................................................................. 7
2.1 Setting of Measurement Range ....................................................................................................................... 7
2.2 Setting of Measurement Interval ..................................................................................................................... 9
2.3 Setting of Filter and Crest Factor .................................................................................................................... 11
2.4 Setting of Averaging Function ........................................................................................................................ 12
Chapter3
Basic Measurement Functions ....................................................................................................... 15
3.1 Basic Concepts .............................................................................................................................................. 15
3.2 Setting of Measurement Function and Interface Display ................................................................................ 16
Chapter4
Waveform Display Function ........................................................................................................... 18
4.1 Basic Concepts .............................................................................................................................................. 18
4.2 Adjustment of Measurement Parameters ...................................................................................................... 21
4.3 Setting of Trigger Configuration ..................................................................................................................... 21
Chapter5
Integral Operation Function ........................................................................................................... 23
5.1 Basic Concepts .............................................................................................................................................. 23
5.2 Setting of Integral Measurement Configuration ............................................................................................. 27
5.3 Integration..................................................................................................................................................... 29
Chapter6
Harmonic Measurement Function .................................................................................................. 32
6.1 Basic Concepts .............................................................................................................................................. 32
6.2 Setting of Harmonic Measurement Configuration .......................................................................................... 35
Chapter7
Routine Maintenance ..................................................................................................................... 38
7.1 Self-inspection ............................................................................................................................................... 38
7.2 Error Information References ........................................................................................................................ 38
7.3 Daily maintenance ......................................................................................................................................... 40
7.4 Contact of ITECH Engineers............................................................................................................................ 40
Chapter8
Technical Specifications .................................................................................................................. 42
8.1 General Specification ..................................................................................................................................... 42
8.2 Screen Display ............................................................................................................................................... 42
8.3 Input Parameters ........................................................................................................................................... 42
8.4 Voltage and Current Accuracy ........................................................................................................................ 44
8.5 Active Power Accuracy .................................................................................................................................. 44
8.6 Voltage Current and Power measurements.................................................................................................... 45
8.7 Frequency Measurement............................................................................................................................... 47
8.8 Harmonic Measurement ................................................................................................................................ 47
