Operation Steps - YUSHI YUT-2820 Manual

Note: the lower the sound path value is, the more accurate the calibration is.

4.2.2 Operation Steps

The instrument requires the echo with an known sound path as the calibration wave of the incident
zero. We choose the CSK-IB test block kept flat to do the distance calibration, as shown in Figure 4-1.
1. Press to enter the parameter menu, press
path submenu. Then press
2. Press (up) or
(right) to set the value as 5920m/s.
3. Put the straight beam probe on the test block and keep good coupling, at this point, five echoes appear
on the screen, as shown in Figure 4-2.
4. Set Gate A to lock the first echo. Press
sound path value is displayed on the screen. If the vertical sound path is not 25mm, press
press (up) or
YUSHI INSTRUMENTS
(left) or
(down) to select the sound velocity submenu. Then press
((down) to select the probe zero submenu. Then press
Keep Calibration block flatwise
The thickness is 25mm
Figure 4-1
(up) or
(right) to set the value as 125mm.
to make the highest echo reach 80% of the screen. The
26
(down) to select the sound
(left) or
Figure 4-2
, then
(left) or (right) to