DMTA-10084-01EN, Rev. 2, November 2018
Chapter 11
156
Figure 11-2 DAC/TCG dialog box
11.3.3 Building a DAC Curve in Standard or ASME III Mode
Building a DAC curve in Standard or ASME III mode involves the same series of
steps, but the modes produce different visual results:
•The Standard DAC mode draws a single DAC curve from peak-to-peak on
reference reflectors.
• The ASME III (or ASME-3) mode draws three DAC curves: one main curve from
peak-to-peak on the reference reflectors and two warning curves at −6dB and
−14 dB compared to the main curve.
The example used in this section to set up and build a DAC curve assumes the
instrument is in ASME-3 mode.
To set up ASME-3 DAC mode
1. Activate the DAC/TCG feature (see “Enabling the DAC/TCG Feature” on
page 154).
2. Turn the adjustment knob to set the DAC/TCG Mode to ASME-3.
3. Press the Shift, Tab key sequence to return to the live A-scan display.
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