DMTA-10055-01EN, Rev. A, February 2015
Calibration
149
Figure 9-3 Example of a gated signal for velocity calibration
9.
Couple the transducer to the thick calibration block step.
In this example, the transducer is coupled to the 0.500 in. step.
10. Use the GATES key to position gate 1 so that the first back-wall echo from the
known thickness step exceeds the gate threshold.
11. Press dB to adjust the gain setting so that the echo amplitude is at approximately
80 %.
A thickness measurement reading appears in large text above the A-scan.
12. Once a steady reading is achieved, choose
Auto Cal > Cal-Vel
.
The screen freezes and the
Enter Value for Velocity Cal
box appears (see
Summary of Contents for EPOCH 650
Page 12: ...DMTA 10055 01EN Rev A February 2015 List of Abbreviations xii...
Page 30: ...DMTA 10055 01EN Rev A February 2015 Introduction 18...
Page 54: ...DMTA 10055 01EN Rev A February 2015 Chapter 1 42...
Page 84: ...DMTA 10055 01EN Rev A February 2015 Chapter 3 72...
Page 126: ...DMTA 10055 01EN Rev A February 2015 Chapter 5 114...
Page 148: ...DMTA 10055 01EN Rev A February 2015 Chapter 7 136...
Page 154: ...DMTA 10055 01EN Rev A February 2015 Chapter 8 142...
Page 236: ...DMTA 10055 01EN Rev A February 2015 Chapter 10 224...
Page 332: ...DMTA 10055 01EN Rev A February 2015 Appendix B 320...
Page 342: ...DMTA 10055 01EN Rev A February 2015 Appendix C 330...
Page 346: ...DMTA 10055 01EN Rev A February 2015 Appendix D 334...
Page 362: ...DMTA 10055 01EN Rev A February 2015 Index 350...
