DMTA-10055-01EN, Rev. A, February 2015
Chapter 9
170
1.
Select
Auto Cal > Type =
Soundpath
.
2.
Couple the transducer to the calibration block so that the BIP is directly over the
0 mark on the ASTM test block. Do not move the transducer from this point
during the distance calibration step.
3.
Use the G1Start button (P5 key) to position gate 1 so that the first reflection from
the arc of the block is exceeding the gate threshold.
This reflection should be close to 100 mm (4 in.).
4.
Press dB, and then adjust the gain setting so that the echo amplitude is at
approximately 80 %.
The AUTO XX% can be used to automatically adjust the gain to set the gated echo
amplitude to XX% of full screen height (the default XX value is 80 %). To activate this
feature, press 2
ND
F, (AUTO XX%).
The sound path measurement reading appears in the Reading 2 box (see
Figure 9-20 on page 170).
Figure 9-20 Example of a gated signal for zero calibration
Sound path
measurement
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...