YUSHI INSTRUMENTS
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Note: When the DAC curve has been made, press the automatic gain, the instrument will
automatically adjust the compensating gain so as to make the echo inside the gate reach 80% of
the screen. The changes of echoes do not mean the changes of DAC curve. However, if the option is
on the parameter menu and on the gain option, press the automatic gain, the instrument will
adjust the gain automatically. The echo and the DAC cure change simultaneously.
3.7.2 Freezing
The function can freeze and lock the display on the current screen. In the freezing mode, you can
move the gate to measure the echoed signal frozen on the screen.
If you want to freeze the current display, press . If you want to return the normal mode,
press again to unfreeze.
Note: in the freezing mode, all the adjustable parameters (gain, sound velocity) can not be adjusted.
3.7.3Wave Peak Memory
Wave peak memory is a function that the instrument compares the “new” with the “old” highest
dynamic echoes automatically and preserves the highest still echo.
First use the gate to lock the echo needed, press to activate the wave peak memory status.
When you move the probe, if there emerges a dynamic echo which is higher than the previous static
wave displayed, the instrument can catch the new echo as the current highest echo displayed. Press
again to exit the wave peak memory.
3.7.4 Full Screen
Press to enlarge the waveform display area to full screen so that you can observe the echo
and the measurement values conveniently. At this moment, the main menu display is canceled. If you
want to return to the normal display mode, press again.
Note: in full screen mode, except the functions of automatic gain, wave peak memory, and freezing
Figure 3-1
Figure 3-2