Operation Steps - YUSHI YUT-2620 Manual

Lock the first echo with Gate A, then adjust the probe zero submenu on the probe menu till the
measured data show the correct sound path value of the echo calibrated.
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
The sound path value is displayed on the screen. If the vertical sound path is not 25mm, press
then press (up) or
adjust the value till the vertical sound path is 25mm. At this point, the probe zero is the zero after
calibration, as shown in Figure 4-3.
YUSHI INSTRUMENTS
Keep Calibration block flatwise
The thickness is 25mm
(left) or (right) to set the value as 125mm.
(down) to select the sound velocity submenu. Then press
to make the highest echo reach 80% of the screen.
(down) to select the probe zero submenu. Then press
24
(up) or (down) to select the sound
Figure 4-2
Figure 4-3
Figure 4-1
(left) or
,
(right) to