
38
easily and quickly.
- Position the selected gate over the echo from the backwall of the
workpiece.
- Activating the SIZE submenu locating in the GATE menu by pressing the
corresponding key below it.
- Select the BACK GAIN function. Then press the corresponding function
key next to it to trigger the back-echo recording and analysis process.
The instrument will record the echo and calculate the required gain
sensitivity automatically. And then the instrument will automatically
adjust the gain to the calculation result.
- Position the selected gate over the echo from the flaw.
- Select the CALC function. Then press the corresponding function key
next to it to calculate the equivalent size.
The calculation result (the equivalent size of the flaw) will be displayed in
the CALC bar.
5.7 Crack Height Measuring Feature
This feature allows measuring the height of a crack found inside the workpiece.
Before starting to use the Crack Height Measure function, the instrument and
the probe must be correctly calibrated.
- Activate the CRACK submenu
locating in the GATE menu by
pressing the corresponding key
below it.
- Position the selected gate over
the echo from the first point of the
crack. Then record this position
using the A-POINT function.
- Position the selected gate over
the echo from the second point of
the crack. Then record this
position in the B-POINT function.
- The instrument will automatically
calculate the crack height using
the recorded parameters and
displays the result in the HEIGHT
bar.
Crack Height
5.8 Envelope Function
When the Envelope function is activated, the echoes with the highest amplitude
within selected gate will be recorded and displayed statically on the screen
additionally to the live A-Scan. And the
icon will appear near the down right
of the display.
NDTzone • Non-Destructive Testing Equipment Specialists
Tel.: +1.877.363.4243 • eMail: [email protected] • Web: www.NDTzone.com