ACS A1212 MASTER, Operation Manual

Page: 29 / 64

Ultrasonic flaw detector А1212 MASTER
Operation Manual
29
ACOUSTIC
CONTROL
SYSTEMS
2
Adjustment of DGS
Do the following to adjust DGS:
- select the line with required type of DGS amplitude correction and press
. A DGS configuration window will be
opened (Figure 21).
- install the PT onto the V2/25 sample and direct it to the hole, make the guide line of the angle of incident of the PT on the
sample to coincide with the beam index of PT.
- move the PT with reference to the guide line and generate the time envelope of the signal from the hole. Adjust am-
plification and move the strobe on the
screen so that to make the envelope
to cross the strobe and be within the
limits of the top edge of the screen. At
that the measuring cursor will auto-
matically go to the maximum ampli-
tude and its value will be displayed in
the result panel.
- to save the settings, press the
key. A confirmation window will
be opened (Figure 22).
Upon pressing the key the
instrument exits the configuration
window of DGS, and the settings will
not be saved.
If parameters are set correctly,
then the three DGS curves will be
displayed on the screen after exiting
Figure 21 Figure 22