Activating The Aws D1.1 Software Option - Olympus EPOCH 650 User Manual

DMTA-10055-01EN, Rev. A, February 2015
where:
A = Discontinuity indication level (dB)
B = Reference indication level (dB)
C = Attenuation factor: 2 * (sound path – 25.4 mm [– 1 in.]) (dB)
D = Indication rating (dB)
The AWS D1.1 inspector must take the Indication Rating (D) that is calculated based
on A, B, and C to an "Ultrasonic Acceptance – Rejection Criteria" table produced by
the AWS in order to classify the severity of the discontinuity that has been located. As
an inspection is performed, you are required to develop an AWS report that lists the
values for all variables listed above as well as transducer information, discontinuity
length and location, and your overall evaluation of the discontinuity.
For further details regarding the test equipment, methods, interpretation, and
classification requirements for these inspections, refer to the AWS D1.1 Code Book.
The goal of the AWS D1.1 software feature is that of simplifying inspector tasks and
lowering the overall inspection time. The EPOCH 650 does this by automatically
performing required calculations. It also by permits the inspector to document
discontinuities in the data logger for reporting purposes.
The EPOCH 650 can also transfer inspection data through GageView Pro to aid in
report generation. This program allows an inspector to view the instrument's setup
parameters, the waveform generated by a discontinuity, the sound path and location
information of the discontinuity, and all values for the AWS D1.1 formula variables.
11.4.1

Activating the AWS D1.1 software option

The first step in operating the EPOCH 650 ultrasonic flaw detector for AWS D1.1
inspections is to calibrate the instrument for the transducer and test conditions. For
information on the angle beam calibration of the EPOCH 650, see "Calibration" on
page 143, or follow the appropriate guidelines from the American Welding Society.
To activate the AWS software feature
1. Select AWS > Setup.
The AWS setup page appears (see Figure 11-18 on page 251).
2. Set AWS = On.
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