DMTA-10055-01EN, Rev. A, February 2015
Chapter 9
172
Figure 9-22 Example of a gated signal for velocity calibration
Another echo might be present on the screen at approximately the 200 mm (8 in.)
point. Disregard this echo as it is usually the result of beam spreading and sound
bouncing off the side of the block. Ensure that gate 1 is not over this echo.
8.
Press dB, and then adjust the gain so that the echo amplitude is at approximately
80 %.
The sound path measurement reading appears in the Reading 2 box.
9.
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...
