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Two angled elements create a V-shaped sound path in the test material. This "Pseudo-Focus" enhances resolution in the focal zone. A dual element transducer consists of two crystal elements housed in the same case, separated by an acoustic barrier. One element transmits longitudinal waves, and the other element acts as a receiver.

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Overview
DC Series
Flush Case Duals
Fingertip Duals
Extended Range Duals
Miniature Tip Duals

Overview

Advantages:

Improves near surface resolution
Eliminates delay line multiples for high temperature applications
Couples well on rough or curved surfaces
Reduces direct back-scattering noise in coarse grained or scattering materials
Combines penetration capabilities of a lower frequency single element transducer with the near surface resolution capabilities of a higher frequency single element transducer
Can be contoured to conform to curved parts

Applications:

Remaining wall thickness measurement
Corrosion/erosion monitoring
Weld overlay and cladding bond/disbond inspection
Detection of porosity, inclusions, cracks, and laminations in castings and forgings
Crack detection in bolts or other cylindrical objects
Maximum temperature capability is 800°F (425°C) for 5.0 MHz and below; 350°F (175°C) for 7.5 MHz and 10 MHz. Recommended duty cycle for surface temperatures from 200°F (90°C) to 800°F (425°C) is ten seconds maximum contact followed by a minimum of one minute air cooling (does not apply to Miniature Tip Dual)

DC Series

DC1–DC5 Dual Element Corrosion Transducers

A Complete Corrosion Monitoring Toolbox for Pipeline and Tank Integrity

Olympus DC series (DC1–DC5) dual element transducers provide inspectors with a complete corrosion monitoring toolbox to support pipeline and tank inspection. Optimized for corrosion and thin materials, the transducers work with a wide variety of NDT instruments and ultrasonic inspection procedures.

All models provide a cleaner signal than single element transducers and offer less ring down than comparable models—helpful for resolving smaller defects, inspecting close to the surface, and differentiating between two indications.

DC1 and DC2 Transducers: Tough and Versatile for Tank and Pipeline Inspection

With a 7.5 MHz frequency and slight roof angle, DC1 and DC2 dual element transducers provide optimal near-surface resolution in the range of 0.030 – 2 in. (0.76 – 50.8 mm) in steel.

Key Benefits:

Ideal for coverage of thin materials
Excels at thickness measurement, corrosion mapping, and flaw sizing
Available in standard (DC1) and thick-walled (DC2) housings
Built to last even with frequent scrubbing due to thick-walled, wear-resistant housing (DC2)
Effective on pipes as small as 1 in. (25.4 mm) OD

Rated for elevated temperature pipe and tank inspections with a heat-resistant delay line up to 150 °C (300 °F)
Fits into small spaces: low profile (18 mm high) and 0.455 in. (DC1)/0.56 in. tip diameter (DC2)
Knurled case is easy to grip
Broad compatibility with unmolded BNC or LEMO connectors
Improved spring strain relief (BNC connector only) to minimize cable damage

DC1 duel element UT transducer

DC1

DC2 duel element UT transducer

DC2

DC3–DC5 Transducers: Inspect Thinner Materials and Go Beyond Corrosion Monitoring

The DC3, DC4, and DC5 dual element transducers expand your inspection capabilities. Thanks to 5 MHz frequencies and optimal element sizes/placement, inspectors can monitor corrosion of thinner material. The DC3 model with its high-angle design takes the series beyond corrosion monitoring and thickness measurement to include thin-wall pipe weld inspection and other applications, useful depth in steel of 0-0.6 in. (0-15.2 mm). DC4 and DC5 models offer optimal depth range in steel of 0.040-1.5 in. (1.02-38.1 mm).

DC3-DC5

DC3 Transducer: Fast Pipe Weld Testing and Thin-Wall Material Inspections

Built with a 5 MHz frequency and high-angle longitudinal wave, the DC3 dual element transducer provides optimal near-surface resolution for very thin materials ranging from 0–0.6 in. (0–15.24 mm).

Key Benefits:

High-angle longitudinal wave: inspect thin material beyond corrosion monitoring
Fast, reliable UT weld inspection tool for thin-wall pipes
Can perform a high-speed manual weld inspection similar to comparable models
Dual piezocomposite elements for increased energy
Acoustic noise barrier for pitch-catch technology prevents crosstalk
Fits into small spaces to inspect hard-to-access areas (e.g., boiler tubes)
Integrated wedges make the transducer compact
Microdot connectors work with various NDT instruments

Applications include:

High-speed manual inspection of thin-wall pipelines, boiler tubes, and other thin components
Planar flaw analysis and sizing
Distinguishing weld root geometry from indications
Pipeline long seam and girth weld inspection
Boiler tube welds
Pharmaceutical piping
Heat exchanger tubing
Thin-walled components in the nuclear industry

DC3

DC4 and DC5 Transducers: Optimized to Detect Flaws and Measure Thickness in Thin Materials

Manufactured at 5 MHz with slightly angled elements and a 0-degree longitudinal wave, the DC4 and DC5 dual element transducers offer enhanced thickness measurement and flaw detection in thin materials ranging from 0.040-1.5 in. (1.02-38.1 mm).

Key Benefits:

Optimal near-surface resolution for thin materials
Slight roof angle improves flaw detection and thickness measurement

Replaceable wedges lengthen the transducer’s useful life
Acoustic noise barrier for pitch-catch technology prevents crosstalk
Microdot connectors work with various NDT instruments

DC4

DC5

Mix and Match Transducers for Specific Inspection Criteria

Depending on your application, any one or a combination of these five transducers offers improved corrosion monitoring and defect sizing. As field inspections change, you can benefit from having the complete set with a total combined thickness range of 0–2 in. (0–50.8 mm), as well as an extra pipe weld inspection tool (DC3 model). Available to purchase separately or, for added convenience, the complete DC1-DC5 transducer lineup is available to purchase in a kit. For available kit options, see images and part numbers below.

DC-KIT-TOOLBOX

Q7790167

Compatible to instruments with Female BNC and or Female LEMO 00 T/R Ports

DC-KIT-RP-TOOLBOX

Q7790168

Compatible to instruments with Female BNC T/R Ports

DC-KIT-RPL-TOOLBOX

Q7790169

Compatible to instruments with Female LEMO 00 T/R Ports

Pairing with the EPOCH™ 650 or 6LT flaw detectors or the 38DL PLUS™ thickness gauge* enables accurate, efficient corrosion mapping for evaluation of nominal wall thickness, pitting corrosion, and flaw type/size

*Due to roof angles, manual V-Path Correction may be required for DC1, DC2, DC4, and DC5.

Ordering Information

DC Series Transducer Specification and Dimensions

Item Number

Part Code

Frequency
(MHz)

Nominal Element Size

Connector Type

Connector Location

Cable Type

External Dimensions

Tip

Inches

Length

Width

Height

Q3301830

5DS-12.7X25.4-0LW-DC5-RM-RW

12.7 x 25.4

0.5 x 1

Microdot

Right Angle

Right Angle Potted

34.9 mm (1.37 in)

19.8 mm (0.78 in)

23.0 mm (0.91 in)

0.73 x 1.10 (in)

Q3301829

5DS-12.7X12.7-0LW-DC4-RM-RW

12.7 x 12.7

0.5 x 0.5

Microdot

Right Angle

Right Angle Potted

19.2 mm (0.76 in)

19.8 mm (0.78 in)

21.3 mm (0.84 in)

0.59 x 0.50 (in)

Q3301828

5DS-5.08X7.62-DC3-RM

5.08 x 7.62

0.2 x 0.3

Microdot

Right Angle

Right Angle Potted

19.4 mm (0.76 in)

15.1 mm (0.59 in)

22.2 mm (0.87 in)

0.46 x 0.63 (in)

Q3300873

7.5DS-0.375-0LW-DC1-P-1-RP

7.5

9.52

0.375

BNC

Right Angle

Right Angle Potted

14.73 mm (0.58 in)

18.54 mm (0.73 in)

0.455 in diameter

Q3300872

7.5DS-0.375-0LW-DC1-P-1-RPL

7.5

9.52

0.375

LEMO 00

Right Angle

Right Angle Potted

14.73 mm (0.58 in)

18.54 mm (0.73 in)

0.455 in diameter

Q3300945

7.5DS-0.375-0LW-DC2-P-1-RP

7.5

9.52

0.375

BNC

Right Angle

Right Angle Potted

14.73 mm (0.58 in)

18.54 mm (0.73 in)

0.56 in diameter

Q3301219

7.5DS-0.375-0LW-DC2-P-1-RPL

7.5

9.52

0.375

LEMO 00

Right Angle

Right Angle Potted

14.73 mm (0.58 in)

18.54 mm (0.73 in)

0.56 in diameter

Item Number

Part Code

Q7000475

SDC4-0L REPLACEMENT WEDGE KIT

Q7000476

SDC5-0L REPLACEMENT WEDGE KIT

Item Part Number

Part Code

Kit Includes

Q7790167

DC-KIT-TOOLBOX

1 Each: 7.5DS-0.375-0LW-DC1-P-1-RPL (Right Potted LEMO), 7.5DS-0.375-0LW-DC1-P-1-RP (Right Potted BNC), 7.5DS-0.375-0LW-DC2-P-1-RP (Thick-wall Housing, Right Potted BNC), 7.5DS-0.375-0LW-DC2-P-1-RPL (Thick-Wall Housing, Right Potted LEMO), 5DS-5.08X7.62-DC3-RM, 5DS-12.7X12.7-0LW-DC4-RM-RW, 5DS-12.7X25.4-0LW-DC5-RM-RW, SDC4-0L REPLACEMENT WEDGE KIT, and SDC5-0L REPLACEMENT WEDGE KIT

Q7790168

DC-KIT-RP-TOOLBOX

1 Each: 7.5DS-0.375-0LW-DC1-P-1-RP (Right Potted BNC), 7.5DS-0.375-0LW-DC2-P-1-RP (Thick-wall Housing, Right Potted BNC), 5DS-5.08X7.62-DC3-RM, 5DS-12.7X12.7-0LW-DC4-RM-RW, 5DS-12.7X25.4-0LW-DC5-RM-RW, SDC4-0L REPLACEMENT WEDGE KIT, and SDC5-0L REPLACEMENT WEDGE KIT

Q7790169

DC-KIT-RPL-TOOLBOX

1 Each: 7.5DS-0.375-0LW-DC1-P-1-RPL (Right Potted LEMO), 7.5DS-0.375-0LW-DC2-P-1-RPL (Thick-Wall Housing, Right Potted LEMO), 5DS-5.08X7.62-DC3-RM, 5DS-12.7X12.7-0LW-DC4-RM-RW, 5DS-12.7X25.4-0LW-DC5-RM-RW, SDC4-0L REPLACEMENT WEDGE KIT, and SDC5-0L REPLACEMENT WEDGE KIT

Flush Case Duals

Flush Case Dual Transducers

Metal wear ring extends transducer life
Wear indicator references when transducer face needs resurfacing
Knurled, 303 stainless steel case
Replaceable cable design (special dual cables with strain relief available)

Request a quote or purchase a transducer by selecting the item number.

Item Number

Part Code

Frequency
(MHz)

Nominal Element Size

Connector Type

Inches

U8452055

DHC703-RM

0.5

Right Microdot

U8452060

DHC785-RM

2.25

0.25

Right Microdot

U8452056

DHC706-RM

2.25

0.5

Right Microdot

U8451001

CHC706-RM

2.25

0.5

Right Microdot

U8452058

DHC711-RM

0.25

Right Microdot

U8452057

DHC709-RM

0.5

Right Microdot

U8452059

DHC713-RM

0.25

Right Microdot

Flush Case Dual Cables

Cable Part Number	Fits Connector Style
BCMD-316-5F	Dual BNC to Microdot^®
L1CMD-316-5F	Dual Large Lemo 1 to Microdot
LCMD-316-5F	Dual Small Lemo 00 to Microdot

Composite Element Flush Case Duals

Freq.	Nominal Element Size		Transducer Part Number
MHz	inches	mm
2.25	0.50	13	CHC706-RM

Fingertip Duals

Fingertip Dual Transducers

Request a quote or purchase a transducer by selecting the item number.

Knurled case, except the 0.25" (6 mm) element size
High-strength flexible 6' (1.8 m) potted cable (fits BNC or Large Lemo^® 1 connectors)

Frequency
(MHz)

Nominal Element Size

BNC

in.

Part /
Item No.

3.5

0.375

D783-RP

U8452049

Extended Range Duals

Shallow roof angles provide greater sensitivity to deep flaws, back walls, and other reflectors, 0.75" (19 mm) and beyond in steel
Can be used for high temperature measurements when delay lines are unacceptable
High-strength flexible 6' (1.8 m) potted cable with BNC connectors

Fingertip and Extended Range Dual

Transducer Dimensions (in inches)

Nominal Element Size	(A)	(B)	(C)
1.00*	1.25	0.75	1.00
0.75	1.00	0.75	0.75
0.50	0.70	0.75	0.50
0.50*	0.70	0.63	0.61
0.375	0.53	0.62	0.375
0.25	0.35	0.54	0.25

Transducer Configurator

Request a quote or purchase a transducer by selecting the item number.

Search Results

Item Number	Part Code
Item Number	Part Code

Miniature Tip Duals

Miniature Tip Dual

Provides better coupling on curved surfaces
Low profile allows for better access in areas of limited space
Maximum temperature capability 122°F (50°C)

Freq.	Tip Diameter		Nominal Element Size		Transducer Part Number
MHz	inches	mm	inches	mm
5.0	0.20	5	0.15	3.8	MTD705

Miniature Tip Dual Cables

Replaceable cable for all flaw detectors

Cable Part Number	Fits Connector Style
BCLPD-78-5	Dual BNC to Lepra/Con
L1CLPD-78-5	Dual Large Lemo 1 to Lepra/Con
LCLPD-78-5	Dual Small Lemo 00 to Lepra/Con

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Dual Element Transducers

Overview

Advantages:

Applications:

DC Series

DC1–DC5 Dual Element Corrosion Transducers

A Complete Corrosion Monitoring Toolbox for Pipeline and Tank Integrity

DC1 and DC2 Transducers: Tough and Versatile for Tank and Pipeline Inspection

Key Benefits:

DC3–DC5 Transducers: Inspect Thinner Materials and Go Beyond Corrosion Monitoring

DC3 Transducer: Fast Pipe Weld Testing and Thin-Wall Material Inspections

Key Benefits:

Applications include:

DC4 and DC5 Transducers: Optimized to Detect Flaws and Measure Thickness in Thin Materials

Key Benefits:

Mix and Match Transducers for Specific Inspection Criteria

Ordering Information

DC Series Transducer Specification and Dimensions

Flush Case Duals

Flush Case Dual Transducers

Request a quote or purchase a transducer by selecting the item number.

Flush Case Dual Cables

Composite Element Flush Case Duals

Fingertip Duals

Fingertip Dual Transducers

Request a quote or purchase a transducer by selecting the item number.

U8452049

Extended Range Duals

Extended Range Duals

Transducer Dimensions (in inches)

Transducer Configurator

Request a quote or purchase a transducer by selecting the item number.

Miniature Tip Duals

Miniature Tip Dual

Miniature Tip Dual Cables

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