ACS A1212 MASTER - Page 19

Ultrasonic flaw detector А1212 MASTER
Operation Manual
19
ACOUSTIC
CONTROL
SYSTEMS
2
The calibration consists of two stages: determination of the delay in the PT’s prism and
calculation of the angle of incident of the PT.
Note: do not severely offset the PT relative to the guidelines of the corresponding angle to
prevent false measurement results.
Prior to entering the calibration mode always set the certified value of the angle of incident
of the transducer.
Do the following to calibrate with the V2/25 sample:
- select the “Angle of incident” parameter line and press the key;
- to determine the delay in the transducer’s prism, scan the radial part (R50) of the V2/25
sample on the side of the longer edge (Figure 9); receive the time envelope of the signals
(Figure 10) and press the key;
- scan the hole in the sample (Figure 11), get the time envelope of the signals (Figure 12)
and press the key ;
Figure 9
Figure 10
Figure 11
Angle of the PT being calibrated
is less than or equal to 62˚
Angle of the PT being calibrated
is more than 62˚