Using Software Options
Part # 910-250C
93
All curves displayed in DAC view are carried over to straight lines in TVG view to show
the main curve and any corresponding reference curves seen in DAC.
Figure 47 DAC Curves
All gain functions described in the previous section are functional with ASME and
ASME-3 curves. This includes transfer correction, scanning gain manipulation and curve
gain adjustment. Unlike the standard DAC/TVG options, the EPOCH 4PLUS and ADT
now allow the operator to adjust the RANGE, ZERO OFFSET, and ANGLE settings after
completing the DAC curve. This allows for greater flexibility while inspecting parts after
calibration.
Additionally, a new feature of the DAC setup allows the operator to manually bring each
echo to 80% of FSH prior to taking a DAC point. This is accomplished using the [F5] key,
AUTO-80, during DAC setup. Once the DAC curve is completed and the operator presses
the DONE key [F2], the gain level returns to the base level.
Note: The instrument automatically takes each DAC point from 80% FSH, even if
the operator does not use the AUTO-80 function manually. When the
instrument does this automatically, the gain level returns to the base gain
after each point is taken.
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