910-269-EN, Rev. B, June 2011
Calibrating the EPOCH 1000 Series (Conventional UT Mode) 139
8. Adjust the value to match the known thickness of the gated indication (0.200 in. in
this example), and then choose Continue to continue to the second calibration
step (see
Figure 9-3 on page 139).
If for any reason you need to exit without acquiring calibration data, use the
[RIGHT] and [LEFT] arrow keys to highlight Cancel, and then press [CHECK].
Figure 9-3 The second gated calibration signal
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 [GATE] key to position gate 1 so that the first back-wall echo from the
known thickness step exceeds the gate threshold.
11. Press [GAIN] to adjust the gain setting so that the echo amplitude is at
approximately 80
%.
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