YUSHI YUT-2620 Manual page 3

3.7.4 Full Screen .................................................................................................................................................... 23
Chapter 4 Application of Testing.................................................................................................................... 23
4.1 Calibration Method and Steps of the Instrument ....................................................................................................... 23
4.2 Zero Calibration of the Straight Beam Probe ............................................................................................................ 24
4.2.1 Calibration Procedures .................................................................................................................................. 24
4.2.2 Operation Steps ............................................................................................................................................. 24
4.2.3 Measurement of the Sound Velocity of the Material ..................................................................................... 26
4.3 Calibration of the Angle Beam Probe ........................................................................................................................ 26
4.3.1 Calibration Procedures .................................................................................................................................. 26
4.3.2 Operation Steps ............................................................................................................................................. 27
4.4 MAKING OF DAC CURVE ................................................................................................................................... 29
4.5 MAKING OF AVG CURVE ..................................................................................................................................... 30
Chapter 5 Skills of Using the Instrument ...................................................................................................... 31
5.1 Flexible Usage of the Gate ........................................................................................................................................ 32
5.2 Making the best of the prompting messages on the screen druing the operation process .......................................... 32
5.3 Saving and calling the instrument status and the detection parameters ..................................................................... 32
5.4 Using batteries to reduce interference ....................................................................................................................... 32
5.5 Switching the display modes ..................................................................................................................................... 33
5.6 Peak value memory function ..................................................................................................................................... 33
Chapter 6 Application and Practice of Flaw Dectetion ................................................................................ 34
6.1 Application on steel plate flaw detection ................................................................................................................... 34
6.1.1 The adjustment of testing scope .................................................................................................................... 34
6.1.2 The adjustment of sensitivity ........................................................................................................................ 34
6.1.3 the identification of flaws .............................................................................................................................. 35
6.1.4 Flaw Evaluation ............................................................................................................................................ 35
6.1.5 Flaw Quantify ............................................................................................................................................... 35
6.1.6 the identification of the defect location ......................................................................................................... 36
6.2 the application on the welding line flaw detection .................................................................................................... 36
6.2.1 Operating steps .............................................................................................................................................. 37
6.2.2 Measurement of the flaw length .................................................................................................................... 37
Chapter 7 Maintenance and Repairing ......................................................................................................... 38
7.1 Operators' Training................................................................................................................................................. 38
7.2 instrument maintenance ............................................................................................................................................. 38
7.3 Environment requirements ........................................................................................................................................ 38
7.4 Maintenance of rechargeable battery ......................................................................................................................... 39
7.5 Batteries replacement ................................................................................................................................................ 39
7.6 Repairing ................................................................................................................................................................... 40
Chapter 8 Communication between the Instrument and the Computer .................................................... 40
8.1 The Communication between YUT-2620 and the computer and the use of data processing software ....................... 40
8.2 Main Functions .......................................................................................................................................................... 41
YUSHI INSTRUMENTS
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