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the actual velocity is calculated and calibrated "speed/delay" is set
automatically. After that, the calibration is finished.
Figure 6-6 Move Gate A to Capture the Echo of R100 Arc
6.1.3 Angle (K value) Auto-Calibration of Angle Probe
The specific operation steps are as follows.
(1) Make angle probe tightly coupled on the test block. Refer to Figure 6-7.
Figure 6-7 Angle Auto-Calibration of the Angle Probe
(2) Enter the CAL main menu, choose: CAL SET: angle/ k value; HOLE DEPTH:
30.0mm; HOLE DIAM: 50.0mm. Adjust gain appropriately and move the probe
to find the highest echo of ¢50.0mm hole.
(3) Move Gate A to capture the highest reflected echo of ¢50mm hole (refer to
Figure 6-8). Enter the CAL submenu and press [+] key to finish calibration, and
then the result will be displayed in "angle/K value" submenu.