YUSHI INSTRUMENTS
12
3.4 Gate Menu
The most outstanding feature of the digital flaw detector is the ability to display all the analogue
values of echoes on the screen by digital signals. When the instrument is required to compare and
compute a signal wave, "human" is needed to tell it which echo to trace. We appoint "gate" for locking
the echo to be measured. The instrument handles and computes the echo inside the gate as well as
displays all the data of the highest echo (including data of the sound path, the horizontal distance, the
vertical distance, and the height).
The instrument works in a dual-gate mode with Gate A and Gate B. The reading mode of the gate is
single gate one. The user can choose Gate A as the current gate. Next, we are going to introduce the
adjustment of the position, width, and height of the gate based on the current gate.
Press
to activate the gate menu. Press it for odd times to select Gate A, even times to select
Gate B.
3.4.1 Gate A Menu
3.4.1.1 Starting of Gate A
Press
for odd times to select the Gate A menu, then press
(up) or
(down) to
select the starting of Gate A submenu. Then press
(left) or
(right) to adjust the values.
Note: the starting of Gate A is the forward position of Gate A. 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.
3.4.1.2 Width of Gate A
Select Gate A menu, press
(up) or
(down) to select the width of Gate A submenu, then
press
(left) or
(right) to adjust the values.
Note: the width of Gate A is the backward position of Gate A. 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.
3.4.1.3 Height of Gate A
Select Gate A menu, press
(up) or
(down) to select the height of Gate A submenu, then
press
(left) or
(right) to adjust the values.
Note: the height of Gate A is the response and measurement thresholds. You can adjust the value in
the 2%-98% range of the vertical full-scale on the screen. When you adjust the values, you can press Ok
to adjust the steps which are divided into 0.5, 2.5, and 5.