910-269-EN, Rev. B, June 2011
Calibrating the EPOCH 1000 Series (Conventional UT Mode) 159
If for any reason you need to exit without acquiring calibration data, use the
[RIGHT] or [LEFT] arrow key to highlight Cancel, and then press [CHECK].
8. Use the [GATE] key to position gate 1 so that the second echo reflection from the
arc of the block is within the gated region. This reflection should be close to 9
in.
(225
mm).
Figure 9-17 The second gated calibration signal
Another echo might be present on the screen at approximately the 8 in. (200 mm)
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.
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