An immersion transducer is a single element longitudinal wave transducer with a 1/4 wavelength layer acoustically matched to water. It is specifically designed to transmit ultrasound in applications where the test part is partially or wholly immersed.

Advantages:

The immersion technique provides a means of uniform coupling
Quarter wavelength matching layer increases sound energy output
Corrosion resistant 303 stainless steel case with chrome-plated brass connectors
Proprietary RF shielding for improved signal-to-noise characteristics in critical applications
All immersion transducers, except paintbrush, can be focused spherically (spot) or cylindrically (line) (see Technical Notes page 45)
Customer specified focal length concentrates the sound beam to increase sensitivity to small reflectors

Applications:

Automated scanning
On-line thickness gaging
High speed flaw detection in pipe, bar, tube, plate, and other similar components
Time-of-flight and amplitude based imaging
Through transmission testing
Material analysis and velocity measurements

Usage Note: Transducers should not be submerged for periods exceeding 8 hours. Allow 16 hours of dry time to ensure the life of the unit.

Standard Case

Knurled case with Straight UHF connect or (SU)
Contact us for nonknurled case design and availability of other connector styles
Frequencies ranging from 1.0 to 25 Mhz

Freq	Nominal Element Size		Unfocused Transducer Part Numbers			Point Target Focus (in inches)* OPTIONAL**
MHz	in	mm	ACCUSCAN-S	CENTRA SCAN	VIDEO SCAN	Min	Max
1.0	0.50	13	A303S-SU	-	V303-SU	0.60	0.80
	0.50	13	A306S-SU	C306-SU	V306-SU	0.80	1.90
2.25	0.375	10	-	C325-SU	V325-SU	0.50	1.06
	0.25	6	-	C323-SU	V323-SU	0.35	0.45
	0.50	13	A382S-SU	C382-SU	V382-SU	0.83	2.95
3.5	0.375	10	-	C383-SU	V383-SU	0.60	1.65
	0.25	6	-	C384-SU	V384-SU	0.39	0.70
	0.50	13	A309S-SU	C309-SU	V309-SU	0.75	4.20
5.0	0.375	10	A326S-SU	C326-SU	V326-SU	0.60	2.35
	0.25	6	A31OS-SU	C310-SU	V310-SU	0.43	1.00
7.5	0.50	13	A32OS-SU	-	V320-SU	0.75	6.30
	0.50	13	A311S-SU	-	V311-SU	0.75	8.40
10	0.375	10	A327S-SU	-	V327-SU	0.60	4.75
	0.25	6	A312S-SU	-	V312-SU	0.46	2.10
	0.50	13	A319S-SU	-	V319-SU	0.75	11.75
15	0.375	10	-	-	V328-SU	0.60	7.10
	0.25	6	A313S-SU	-	V313-SU	0.50	3.15
20	0.25	6	-	-	V317-SU	0.50	4.20
	0.125	3	-	-	V316-SU	0.25	1.00
25	0.25	6	-	-	V324-SU	0.50	5.25

*Please select a specific focus between min max.
**If a focus is required, select a focal length between min max

Large Diameter Case

Large element diameters increase near field length allowing for longer focal lengths
Larger diameters can increase scanning index
Low frequency, large element diameter designs available for challenging applications

Freq	Nominal Element Size		Unfocused Transducer Part Numbers			Point Target Focus (in inches)* OPTIONAL**
MHz	in	mm	ACCUSCAN-S	CENTRA SCAN	VIDEO SCAN	Min	Max
0.5	1.50	38	A389S-SU	-	V389-SU	2.15	3.80
	1.125	29	A391S-SU	-	V391-SU	1.50	2.10
	1.00	25	A301S-SU	-	V301-SU	1.25	1.65
	0.75	19	-	-	V318-SU	0.78	0.93
1.0	1.50	38	A392S-SU	-	V392-SU	2.50	7.56
	1.125	29	A394S-SU	-	V394-SU	1.90	4.30
	1.00	25	A302S-SU	C302-SU	V302-SU	1.63	3.38
	0.75	18	A314S-SU	-	V314-SU	1.00	1.90
2.25	1.50	38	A395S-SU	-	V395-SU	2.70	14.50
	1.125	29	A397S-SU	-	V397-SU	2.15	9.50
	1.00	25	A304S-SU	C304-SU	V304-SU	1.88	7.60
	0.75	19	A305S-SU	C305-SU	V305-SU	1.00	4.30
3.5	1.00	25	A380S-SU	C380-SU	V380-SU	1.95	11.25
	0.75	19	A381S-SU	C381-SU	V381-SU	1.00	6.65
5.0	1.00	25	A307S-SU	-	V307-SU	1.95	14.40
	0.75	19	A308S-SU	C308-SU	V308-SU	1.00	9.50
7.5	0.75	19	A321S-SU	-	V321-SU	1.00	12.75
10	1.00	25	-	-	V322-SU	2.00	20.00
	0.75	19	A315S-SU	-	V315-SU	1.00	15.37

*Please select a specific focus between min max.
**If a focus is required, select a focal length between min max

Transducer Dimensions (in inches)
Nominal Element Size	(A)	(B)	(C)
1.50	1.75	1.81	1.50
1.13	1.38	1.44	1.25
1.00	1.25	1.31	1.25
0.75	1.00	1.06	1.25

Slim Line Case

Stainless steel case is only 0.38" (10 mm) in diameter, ideal for limited access areas
Standard configuration is Straight and fits Microdot ^®connector style

Freq	Nominal Element Size		Unfocused Transducer Part Numbers		Point Target Focus (in inches)*
MHz	inches	mm	ACCUSCAN-S	VIDEOSCAN	Min	Max
2.25	0.25	6	-	V323-SM	0.35	0.45
3.5	0.25	6	-	V384-SM	0.39	0.70
5.0	0.25	6	A310S-SM	V310-SM	0.43	1.00
10	0.25	6	A312S-SM	V312-SM	0.46	2.10
15	0.25	6	A313S-SM	V313-SM	0.50	3.15
20	0.25	6	-	V317-SM	0.50	4.20
	0.125	3	-	V316-SM	0.25	1.00
25	0.25	6	-	V324-SM	0.50	5.25

*Please select a specific focus between min max.
**If a focus is required, select a focal length between min max

Pencil Case

Small diameter, 2" (51 mm) long barrel improves access to difficult-to-reach areas
Standard connector style is Straight UHF (SU)

Freq	Nominal Element Size		Unfocused Transducer Part Numbers		Point Target Focus (in inches)* OPTIONAL**
MHz	inches	mm	ACCUSCAN-S	VIDEOSCAN	Min	Max
2.25	0.25	6	-	V323-N-SU	0.35	0.45
3.5	0.25	6	-	V384-N-SU	0.30	0.70
5.0	0.25	6	A310S-N-SU	V310-N-SU	0.43	1.00
10	0.25	6	A312S-N-SU	V312-N-SU	0.46	2.10
15	0.25	6	A313S-N-SU	V313-N-SU	0.50	3.15
20	0.25	6	-	V317-N-SU	0.50	4.20
	0.125	3	-	V316-N-SU	0.25	1.00
25	0.25	6	-	V324-N-SU	0.50	5.25

*Please select a specific focus between min max.
**If a focus is required, select a focal length between min max

Side Looking Immersion Transducers

Ideal for measuring wall thicknesses of pipe where access to the outer diameter is limited
Small outer diameter allows for greater accessibility in tight spaces than standard immersion transducers with reflector mirrors
Sound exit point is located at a 90° angle relative to the straight Microdot ^® connector
Probe extensions such as the F211 are available to lengthen the standard design

Part Numbers	Freq.	Nominal Element Size	Focus
	MHz	inches	mm	inches
V3591	10	0.125	3	0.50 OLF
V3343	20	0.125	3	0.50 OLF

Note: All above side looking immersion transducers have straight Microdot connectors.

Extra Miniature (XMS) Transducer

The XMS transducer is an extremely small 10 MHz immersion transducer with a 3 mm (0.118") diameter by 3 mm (0.118") long case. This transducer is ideal for extremely tight access areas or for multi-element array flaw detection. The transducer assembly has a special connector attached to the 1 m (38") long potted cable. An adaptor is also available to interface with most commercial ultrasonic equipment.

Frequency	Nominal Element Size		Part Number	Included Adapter
MHz	inches	mm
10	.080	2	XMS-310-B	BNC
10	.080	2	XMS-310-L	Lemo ^® 01

Accuscan Paintbrush

Large scanning index is ideal for inspections of aluminum or steel plate
Sensitivity uniformity of better than ±1.5 dB is maintained across the transducer face (sensitivity peaks at the edges are also controlled)

Frequency	Nominal Element Size		Transducer Part Numbers
MHz	inches	mm
2.25	1.50 x 0.25	38 x 6	A330S-SU
3.5	1.50 x 0.25	38 x 6	A331S-SU
5.0	1.50 x 0.25	38 x 6	A332S-SU
7.5	1.50 x 0.25	38 x 6	A333S-SU
10	1.50 x 0.25	38 x 6	A334S-SU
2.25	2.00 x 0.25	51 x 6	A340S-SU
3.5	2.00 x 0.25	51 x 6	A341S-SU
5.0	2.00 x 0.25	51 x 6	A342S-SU
7.5	2.00 x 0.25	51 x 6	A343S-SU
10	2.00 x 0.25	51 x 6	A344S-SU

Transducer Dimensions (in inches)
Nominal Element Size	(A)	(B)	(C)
2.00 x 0.25	0.82	0.75	2.50
1.50 x 0.25	0.82	0.75	2.00

For 7.5 MHz and 10 MHz, case height (A) is 0.62"

Reflector Mirrors

Directs sound beam when a straight-on inspection is not possible
Standard mirrors provide a 90° reflection of the sound beam

Case Style	Incident Angle	Part Numbers
	(°)
Standard	45	F102
Slim Line	45	F132
Pencil	45	F198

Note: Contact us for other reflected angles.

Immersion Search Tubes

Provides a quick and easy way to fixture and manipulate immersion transducers

Part Numbers	Length		Fits Connector Styles	Outside Diameter
	inches	mm		inches	mm
F112	1.5	38	UHF to UHF	0.738	18.75
F113	2	51	UHF to UHF	0.738	18.75
F114	3	76	UHF to UHF	0.738	18.75
F115	6	152	UHF to UHF	0.738	18.75
F116	8	203	UHF to UHF	0.738	18.75
F117	12	305	UHF to UHF	0.738	18.75
F118	18	457	UHF to UHF	0.738	18.75
F119	24	610	UHF to UHF	0.738	18.75
F120	30	762	UHF to UHF	0.738	18.75
F211	12	305	Microdot ^® to Microdot	0.312	7.92

Bubblers

Allows for immersion testing when complete immersion of parts is not desirable or possible
Designed to maintain a consistent, low volume flow of water

Part Numbers	Diameter Opening		Water Path		Case Style	Nominal Element Size		Opening Type
	inches	mm	inches	mm		inches	mm
MPF-B-0.5	0.300	7.6	1.00	25.4	Standard SU†	0.125	3	flat
						0.25	6	flat
B103	0.350	8.9	0.775	19.9	Standard SU†	0.125	3	V-notch
						0.25	6	V-notch
B103A	0.350	8.9	0.475	12.1	Standard SU†	0.125	3	flat
						0.25	6	flat
B103W	0.550	14	0.775	19.7	Standard SU†	0.375	10	V-notch
						0.50	13	V-notch
B103AW	0.550	14	0.475	12.1	Standard SU†	0.375	0.375	flat
						0.50	13	flat
B116	0.100	2.5	variable,	min of:	Fits SU/RM case style*			flat
			0.075	1.9				flat
B117	1.375	34.4	1.400	35.6	Large Diameter	1.00	25.4	V-notch

RBS-1 Immersion Tank

RBS-1 immersion tank is designed to simplify testing measurements using immersion techniques. It consists of a clear acrylic tank, a submersible pump and a transducer fixture in a single, portable unit. The pump feeds an adjustable stream of water to a bubbler mounted in the fixture, providing a water column to couple sound from an immersion transducer into the test piece. It is ideal for offline thickness measurements on metal, glass and plastic products such as small containers, pipe or tubing, sheets or plates or machined parts.

Clear Acrylic Tank

5.5 x 12 x 8 inches (140 x 305 x 200 mm)
0.83 gallon (3.1 liter) capacity

Pump

Up to 0.25 gallons (0.9 liters) per minute
115 or 230 V, 30 Watt (voltage range 90 to 135 VAC), 50 to 60 Hz
Submersible (ground fault interrupter circuit recommended)

Handheld Bubbler Transducer Assembly

Handheld bubbler transducers are available in either 20 MHz (V316B) or 10 MHz (V312B). They are immersion transducers that screw onto a bubbler assembly (B120) which has a replaceable stainless steel tip and a water feed tube. They offer high resolution and easy access inspection of thin materials. The V316B and bubbler combination can resolve thicknesses down to 0.008" (0.2 mm).

Frequency	Nominal Element Size		Focal Length		Transducer Part Number	Bubbler Assembly	Replacement Tip	Flexible Tip
MHz	inches	mm	inches	mm
10	0.25	25	1.00	25	V312B-RM	B120	B120-TIP	B120-FLEX-TIP
20	0.125	3	0.75	19	V316B-RM	B120	B120-TIP	B120-FLEX-TIP

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