Aws D1.1 In Dac/Tcg; Sensitivity Correction - GE USM 36 Series Technical Reference And Operating Manual

Distance-amplitude correction (DAC)

AWS D1.1 in DAC/TCG

The function group AWS D1.1 is available as an add-on
to DAC/TCG for angle-beam probes.
You can use the 1st reference echo to set the reference
gain by means of the function B REFERENCE.
For detailed information on AWS D1.1, see Chapter
5.11 Rating of welds (function group AWS D1.1),
page 5-40.
USM 36

Sensitivity correction

You can use the function TRANSFER CORR. to com-
pensate for transfer losses in the material to be tested.
A correction is necessary if the test object and the refer-
ence standard have different surface qualities.
You have to determine the adjustment value for the
compensation of transfer losses by way of experiment.
In this connection, the gain is varied accordingly but the
curve shape remains the same.
– Select the function group OFFSETS.
– Select the function TRANSFER CORR. and set the
required value.
Issue 2 (12/2013)
5 Operation
5-101