UT Lack Of Root Penetration Signal

This video demonstrates the Ultrasonic Testing signal when inspecting a weld with lack of root penetration. Equipment: Olympus EPOCH 1000i UT tester, 70 degree, 4Mhz, 10mm diameter transducer, 0.625" thick base metal single V welded plate.
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[@ronaldomaalat5234]

can i ask question..if u scan for example 9.7mm base metal thickness ..how much is my range for scanning.im using usm35x .thanks for the response sir.

[@amarmahabir4729]

Will a 45 degree give a better signal

[@pandurangwaghmare9912]

Hindi