
YUSHI INSTRUMENTS
13
Display
Meaning
Display
Meaning
Sa
The sound path value of the echo in Gate
A
Ha
The height of the echo in Gate A
Sb
The sound path value of the echo in Gate
B
Hb
The height of the echo in Gate B
ba
The path difference of the echoes in Gate
A and B
Da
The vertical distance from the surface
of the work piece to the flaw echo in
Gate A
Ra
The projection distance from the probe
front edge to the flaw echo in Gate A.
Db
The vertical distance from the surface
of the work piece to the flaw echo in
Gate B
Rb
The projection distance from the probe
front edge to the flaw echo in Gate B
dBa
The dB difference from the echopeak
in Gate A to the gate level position
off
Close display
dBb
The dB difference from the echopeak
in Gate B to the gate level position
3.3.2 Gate B Menu
3.3.2.1 Starting of Gate B
Press for even times to select the Gate B menu, then press (up) or (down) to
select the starting of Gate B submenu. Then press (left) or (right) to adjust the values.
Note: the starting of Gate B is the forward position of Gate B. The adjustment range: 0-9998mm.
When you adjust the values, you can press Ok to adjust the steps which are divided into 1, 5, and 10.
3.3.2.2 Width of Gate B
Select Gate B menu, press (up) or (down) to select the width of Gate B submenu,
then press (left) or (right) to adjust the values.
Note: the width of Gate B is the backward position of Gate B. Minimum adjustment range is
2mm, while the maximum one is same as the sound path value. When you adjust the values, you can
press Ok to adjust the steps which are divided into 1, 5, and 10.