Calibrating For Sensitivity; Figure 9-23 Entering The Velocity Cal Thickness Value - Olympus EPOCH 650 User Manual

Figure 9-23 Entering the Velocity Cal thickness value

10. Adjust the value to match the known thickness of the gated indication (9.000 in. in
this example), and then press Done to complete the calibration process.
9.8.4

Calibrating for Sensitivity

The final step in the angle beam calibration is to calibrate for sensitivity. This allows
you to set up a reference gain level for your inspection.
To calibrate for sensitivity
1. Couple the probe to the IIW calibration block so that the transducer is aiming at
the 1.5 mm (0.060 in.) diameter side-drilled hole, used as a reference-reflector.
DMTA-10055-01EN, Rev. A, February 2015
Calibration 173