TM 1-1520-264-23
2-38.2 Change 1
2.16.1.1.3.5 NDI Equipment Settings.
a. Make the following initial settings on the Ultrasonic Inspection Unit, USD 15S:
(SETUP – DEFAULT SETTINGS)
(BASICS)
DIALOG
ENGLISH
GAIN
58 dB
UNIT
INCH
RANGE
1.770 in
GAT-SEL
Gate-A
MTL VEL
233.0 in/ms
A-OUT
amplit
D-DELAY
0.00 in
A-LOGIC
pos
P-DELAY
0.00 ms
A-HORN
on
A-ALARM
short
(PULSER)
(RECEIVER)
DAMPING
50 ohm
FREQ
15 MHz
ASCAN
NORMAL
REJECT
0%
PRF-MOD
AUTOLOW
RECTIF
FULL-W
PRF-VAL
See Note 1
DUAL
OFF
(GATES)
(MEASURE)
GAT-SEL
Gate-A
GATE-SEL
Gate-A
A-START
0.500 in.
A-TOF
peak
A-WIDTH
1.100 in.
A-AMPLI
%
A-THRSH
40%
MEAS_VA
none
(KEYS)
See Note 2
(DATALOG) See Note 2
(ANGLE)
See Note 2
(DAC)
See Note 2
NOTES:
(1)
WHEN THE PULSE REP FREQUENCY IS IN AN AUTOMATIC MODE,
THE VALUE IS ELECTRONICALLY DETERMINED.
(2)
NOT USED - LEAVE AT DEFAULT VALUES.
b. Refer to the Ultrasonic Method, paragraph 1.4.12. Calibrate the ultrasonic
instrument as follows:
NOTE
The transducer guide holes are a snug fit. Make sure the set screw is completely
backed out of the bore prior to inserting the transducer.
