YUSHI YUT-2620 Manual Download Page 4 | Manualshive

Page: 4 / 48

YUSHI YUT-2620 Manual Download Page 4

YUSHI INSTRUMENTS

IV

Appendix I Flaw Detection Reports

............................................................................................................... 42

Appendix II TERMINOLOGY

...................................................................................................................... 43

«
...
2
3
4
5
6
...
»

Summary of Contents for YUT-2620

Page 1: ...onal Keys 4 Chapter 2 Functions features and parameters of the instrument 4 2 1 Basic functions of the instrument 4 2 2 Features of the instrument 5 2 3 Specifications 6 Chapter 3 Detailed Operation I...

Page 2: ...5 3 4 4 Front Distance 16 3 4 5 Work piece thickness 16 3 4 6 Probe type 17 3 4 7 Probe frequency 17 3 4 8 Probe diameter 17 3 5 Curve menu 17 3 5 1 DAC echo 18 3 5 2 Gate A start 18 3 5 3 Distance co...

Page 3: ...nterference 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 a...

Page 4: ...YUSHI INSTRUMENTS IV Appendix I Flaw Detection Reports 42 Appendix II TERMINOLOGY 43...

Page 5: ...shed entirely by the keypad With the process of the keypad operation the instrument is able to identify various meanings of each key according to different conditions and then to carry out the instruc...

Page 6: ...ed through up and down keys among the operation pages The selected menu is highlighted and its value can be adjusted through left and right keys 1 4 1 Power Supply Using AC Adapter Alternating current...

Page 7: ...rument 1 4 4 Restore the Initial Parameters of the Instrument If the instrument crashes or some functions are in disorder or the parameters of the instrument need resetting press twice before press up...

Page 8: ...y real time envelopes show the highest wave of the flaws and record the maximum value of the flaws it is helpful to position the flaws precisely and scan the work piece quickly With the help of envelo...

Page 9: ...ft or right hand The probe interface is optional for BNC or Lemo The D shaped ring on the instrument is convenient for you to install a cheststrap The nice surface of the casing is antiskid with erode...

Page 10: ...level 10 Battery types high power lithium battery Power supply 220VAC 11VDC Working hours of the batteries 8 hours Casing pan seal design of IP67 standard real waterproof dampproof and dustproof Exter...

Page 11: ...r 2260m s 4700m s Organic Glass 1460m s 2730m s Aluminum 3080m s 6300m s Steel 3230m s 5920m s Iron 3230m s 5900m s Epoxy Resin 1100m s 2500m s 3 1 3 Displacement The displacement submenu displays the...

Page 12: ...0 3 1 6 Scale This function enables you to adjust the display mode of the screen coordinate On the parameter menu press to activate the function Press up or down to select the scale submenu then press...

Page 13: ...o DAC curve then it displays SL Hint on the parameter menu the 8 submenus are shown on two screens the former five ones on one screen and the latter three ones on the other screen You can switch among...

Page 14: ...is function to set the percentage of the height of the automatic gain waveform on the screen The default status is 80 Select the setting menu press up or down to select the automatic wave height subme...

Page 15: ...easured The instrument handles and computes the echo inside the gate as well as displays all the data of the highest echo including data of the sound path the horizontal distance the vertical distance...

Page 16: ...full scale on the screen When you adjust the values you can press Ok to adjust the steps which are divided into 0 5 2 5 and 5 3 3 1 4 Mode of Gate A Select Gate A menu press up or down to select the...

Page 17: ...ion off Close display dBb The dB difference from the echopeak in Gate B to the gate level position 3 3 2 Gate B Menu 3 3 2 1 Starting of Gate B Press for even times to select the Gate B menu then pres...

Page 18: ...unctions Positive Afferent Echo Alarm In the coverage of Gate B if the echo exceeds the preset gate height and the alarm is on the alarm will sound Negative Echo Loss Alarm In the coverage of Gate B i...

Page 19: ...is 0 99 99 s In the adjustment you can press Ok to adjust the steps which are divided into 0 025 0 1 and 1 3 4 3 Probe K Value When the angle beam probe is used the included angle value between the s...

Page 20: ...t that the instrument might produce an outcome that the vertical depth value is larger than the actual thickness of the work piece when it automatically measure the vertical depth Select the probe men...

Page 21: ...diagram mode displays the influences and the changes When the DAC curve is being made the material of the reference block with artificial flaws should be same as the work piece to be tested Note When...

Page 22: ...nsitivity so as to improve the testing range of the device significantly Before using this function DAC curve should be made first Select the DAC menu press up or down to select the TVG submenu Then p...

Page 23: ...mode submenu Then press left or right to change between the two modes 3 5 9 Gate A start The instruction is the same with that in DAC menu See 3 6 2 for details 3 5 10 Sensitivity When making AVG curv...

Page 24: ...umber submenu Then press left or right to adjust the values Note the memory number can be chosen recurrently in the data set ranging from 1 to 1000 When setting the memory if there is a before the dat...

Page 25: ...ou can delete the set 3 6 5 Communication The flaw detector can exchange data with PC For more information see Chapter 8 The default status is on 3 7 Operation of Other Special Functional Keys 3 7 1 A...

Page 26: ...e freezing mode all the adjustable parameters gain sound velocity can not be adjusted 3 7 3Wave Peak Memory Wave peak memory is a function that the instrument compares the new with the old highest dyn...

Page 27: ...he straight beam probe of the general flaw detector generally speaking there is no emphasis on zero bias control as long as you aim the start pulse at the left side line of the display grid any zero b...

Page 28: ...ress left or right to set the value as 125mm 2 Press up or down to select the sound velocity submenu Then press left or right to set the value as 5920m s 3 Put the straight beam probe on the test bloc...

Page 29: ...t this point the sound velocity is the sound velocity of the material 4 3 Calibration of the Angle Beam Probe Concerning the contact detection by angle beam probe distance calibration is a must before...

Page 30: ...the probe on the test block and move it till the reflector echo of the hollows of R100mm reach the highest level measure 89mm of the front face of the probe with a ruler at this point the front edge...

Page 31: ...ure 4 7 till the reflection echo of the circle of 50mm reaches the highest level use a steel ruler to measure L and calculate K value according to k L X 35 30 As shown in Figure 4 9 press to enter the...

Page 32: ...ctor is the more precise the calibration is but the difficulty of calibration increases correspondingly When you use a pinhole to do calibration you can measure the depth and the horizontal position o...

Page 33: ...tomatically 5 Move the probe to make the level of the echo of the next reference point be highest move the gate to catch the echo and repeat step 4 At this point the value of the DAC echo on the subme...

Page 34: ...locity can be adjusted The AVG curve will then change according to the parameters and the detecting result will not be influenced B Hole mode 1 Calibrate the instrument first Check Straight beam probe...

Page 35: ...rm gate 5 2 Making the best of the prompting messages on the screen druing the operation process When you operate the instrument and some operations need confirming by the operator on the upper part o...

Page 36: ...n menu and the submenu are hidden as shown in Figure 5 2 In the full screen mode except the functions of automatic gain wave peak memory and freezing are available other functions will be locked and u...

Page 37: ...dentify and quantify the flaws 6 1 1 The adjustment of testing scope The adjustment of testing scope is mainly based on the thickness of the steel plate By adopting contact method when the thickness o...

Page 38: ...can be identified as flaws The first reflected waves of flaws F1 50 First bottom waves B1 100 the ratio between first flaw waves F1 and first bottom waves B1 being F1 B1 50 First bottom waves B1 50 6...

Page 39: ...e and the flaw the minimum distance between the down side of the steel plate and the flaw and the maximum indicated length L3 Based on the figure work out the defect area See the picture below Fill in...

Page 40: ...e the probe to find the highest echo After you find the highest wave keep the probe steady Now observe the data display area on the screen to get the flaw depth reading x x ie H as well as the area wh...

Page 41: ...eration and study the Operator s Manual carefully beforehand Lacking special knowledge in ultrasonic flaws detecting may cause unpredictable erroneous results To operate the instrument safely and corr...

Page 42: ...time may cause irrevocable damage to the instrument If the batteries has run out unplug the power adapter and then plug it in two minutes later to continue to recharge the batteries Repeat until the...

Page 43: ...b The keyboard or the display screen can t work normally c It is kept in a place of high temperature high humidity or corrosivity Chapter 8 Communication between the Instrument and the Computer 8 1 T...

Page 44: ...nnect the PC 3 Open the communication software DDIclient exe and tap in the file scopes for download Then press the download button Note 1 Pulling out the communication cable or shutting down the soft...

Page 45: ...flaw detection report a When connected with YUT 2620 download the flaw detecting information graphs and data saved in the instrument to PC b Select the data information for print in data interface Cli...

Page 46: ...YUSHI INSTRUMENTS 42 Appendix I General Flaw Detection Report...

Page 47: ...between the maximum and minimum reflection area which can be identified on the screen of ultrasonic defectometer Pulse Repetition Frequency the pulse frequencies produced per second when the impulsat...

Page 48: ...for evaluating the property and flaw detecting sensitivity of the ultrasonic system Standard test block the blocks whose materials shapes and sizes having been appraised by the authoritative organiza...

Reviews:

No comments