88 Chapter 5
echoes. Usually the range is from 0.010 inch to 0.500 inch, but it can go up to 0.750 inch.
The measurement is made between the echoes (for best accuracy, the 1st and 2nd back echoes).
The thickness gauge offsets, and sound velocity must be recalibrated, each time the instrument
is powered up.
Figure 21: Delay Line Test Echoes
The following accessories are required for this procedure:
STEP BLOCK:
Sonic
®
#1920105.00 Steel Step Block or equal (0.100, 0.200, 0.300,
0.400, 0.500 inch steps).
TRANSDUCER:
A 10 MHz highly damped delay line transducer is usually the best
choice, but a 5 MHz transducer may be used if the material is above 0.050 inch.
Spectrum™ C17L is a good selection.
TRANSDUCER CABLE:
Sonic
®
BNC/Microdot (#9102894).
COUPLANT:
A thin couplant is preferred, such as Sonic
®
X30S couplant (#3317450),
mineral oil, light oil, or possibly water.
5.3.1
Instrument Calibration - 0.500” Thickness Range, Steel
1.
Connect the transducer cable to the Spectrum™ C17L transducer and to either BNC
connector.
2.
Turn on the instrument power, and adjust the operating controls as follows:
DELAY
IP
Содержание Sonic 1200S/HR
Страница 1: ...PN 7720044 PN 7720066 March 2006 Sonic 1200S HR Ultrasonic Flaw Detector User s Manual...
Страница 8: ......
Страница 13: ...Preparation for Operation 5 1 2 Sonic 1200S HR Packages 1 2 1 Sonic 1200S Packages...
Страница 14: ...6 Chapter 1...
Страница 15: ...Preparation for Operation 7 1 2 2 Sonic 1200HR Packages...
Страница 16: ...8 Chapter 1 1 3 Sonic 1200S HR Packages 1 3 1 Sonic 1200S Packages...
Страница 17: ...Preparation for Operation 9...
Страница 18: ...10 Chapter 1 1 3 2 Sonic 1200HR Packages...
Страница 36: ...28 Chapter 2...
Страница 72: ...64 Chapter 4...
Страница 110: ...102 Chapter 5 Figure 5 37 IIW Type 1 Block Echoes Figure 5 38 IIW Type 2 Block Echoes...
Страница 119: ...Applications 111 f Calibration is now done see Figure 5 50 Figure 5 48 Figure 5 49...
Страница 134: ...126 Chapter 6...
Страница 149: ...Computer Interface 141...