Flaw Detectors

Protected Face

Protected Face Transducers

A protected face transducer is a single element longitudinal wave contact transducer that can be used with either a delay line, protective membrane, or protective wear cap.

Protective Membrane Option

  • Improves coupling on rough or uneven surfaces
  • Dry couple to smooth, clean surfaces

Nominal
Element Size

Membranes
Only*

Membrane
Retaining
Ring

Kits†

inches

mm

pkg of 12

pkg of 60

1.50

38

PM-1-12

PM-1-60

MRN-1

PMK-1

1.125

29

PM-2-12

PM-2-60

MRN-2

PMK-2

1.00

25

PM-3-12

PM-3-60

MRN-3

PMK-3

0.75

19

PM-4-12

PM-4-60

MRN-4

PMK-4

0.50

13

PM-5-12

PM-5-60

MRN-5

PMK-5

*Available in 36" x 36" x 1/32" sheets. Order part number NPD-665-3101.

† Kit includes 12 Membranes, 1 ring, C-2 couplant

Protective Wear Cap Option

• The nylon wear cap provides an economical solution in applications requiring scanning or scrubbing of rough surfaces

Nominal
Element Size

Protective

inches

mm

1.50

38

NWC-1

1.125

29

NWC-2

1.00

25

NWC-3

0.75

19

NWC-4

0.50

13

NWC-5

High Temperature Delay Line Options

  • Allows for intermittent contact with hot surfaces*
  • Improves near surface resolution
  • Contouring of delay lines provides better coupling on curved surfaces
  • Warm temperature delay lines (WTD) can be used for room temperature applications

Nominal
Element Size

Delay Line
Retaining
Ring

350°F max.
(175°C)

500°F max.
(260°C)

900°F max.
(480°C)

inches

mm

1.00

25

DRN-3

WTD-3-x

HTD-3-x

VHTD-3-x

0.75

19

DRN-4

WTD-4-x

HTD-4-x

VHTD-4-x

0.50

13

DRN-5

WTD-5-x

HTD-5-x

VHTD-5-x

*Recommended usage cycle is ten seconds maximum contact followed by one minute of air cooling. However, the transducer itself should not be heated above 122°F (50°C).

X = standard delay line lengths, available in 1/2" (13 mm), 1" (25 mm), 1-1/2" (38 mm). Specify at time of ordering.

Note: For the delay lines above, a room temperature material longitudinal wave velocity of 0.100 in/µsec ±0.005 in/µsec may be used as an approximation for basic calculations. This value should not be used for engineering design calculations.

Contact us for details.

Standard Protected Face

  • Comfort Fit sleeves are designed to be easily held and provide steady grip while wearing gloves
  • Standard connector style Right Angle BNC (RB), may be available in Straight BNC (SB)
  • Delay line, protective membrane, and wear cap options sold separately from the transducer

Transducer Dimensions (in inches)

Nominal Element Size (A) (B) (C)
1.50 1.53 1.75 2.25
1.125

1.53

1.38

1.81

1.00 1.53 1.25 1.63
0.75 1.53 0.99 1.41
0.50 1.53 0.63 1.19

Transducer Configurator

Frequency (MHZ)
Nominal Element Size (in)
Transducer Type
Frequency
(MHz)		Nominal Element Size ACCUSCAN-S CENTRASCAN VIDEOSCAN
in.mmPart /
Item No.		Part /
Item No.		Part /
Item No.
0.5 1 25 A601S-RB

U8440001

Protective Face Transducer, 0.50 MHz, 1.00 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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 V601-RB

U8442001

Protective Face Transducer, 0.50 MHz, 1.00 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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0.5 1.125 29 A691S-RB

U8440031

Protective Face Transducer, 0.5 MHz, 1.125 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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 V691-RB

U8442031

Protective Face Transducer, 0.5 MHz, 1.125 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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0.5 1.5 39 A689S-RB

U8440029

Protective Face Transducer, 0.5 MHz, 1.50 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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 V689-RB

U8442029

Protective Face Transducer, 0.5 MHz, 1.50 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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1 0.5 13 A603S-RB

U8440005

Protective Face Transducer, 1 MHz, 0.50 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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C603-RB

U8441002

Centrascan Composite Protective Face Transducer, 1.00 MHz, 0.50 in. Element Diameter, Right Angle BNC Connector, Includes Test Form Certificate
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V603-RB

U8442005

Protective Face Transducer, 1 MHz, 0.50 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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1 0.75 19 A614S-RB

U8440021

Protective Face Transducer, 1 MHz, 0.75 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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 V614-RB

U8442021

Protective Face Transducer, 1 MHz, 0.75 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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1 1 25 A602S-RB

U8440003

Protective Face Transducer, 1 MHz, 1.00 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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C602-RB

U8441001

Centrascan Composite Protective Face Transducer, 1.00 MHz, 1.00 in. Element Diameter, Right Angle Case Style, Straight BNC Connector Includes Test Form Certificate
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V602-RB

U8442003

Protective Face Transducer, 1 MHz, 1.00 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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1 1.125 29   V694-RB

U8442035

Protective Face Transducer, 1 MHz, 1.125 in. Element Diameter, Right BNC Connector
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1 1.5 39 A692S-RB

U8440033

Protective Face Transducer, 1 MHz, 1.50 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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 V692-RB

U8442033

Protective Face Transducer, 1 MHz, 1.50 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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2.25 0.5 13 A606S-RB

U8440011

Protective Face Transducer, 2.25 MHz, 0.50 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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C606-RB

U8441004

Centrascan Composite Protective Face Transducer, 2.25 MHz, 0.50 in. Element Diameter, Right Angle BNC Connector Includes Test Form Certificate
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V606-RB

U8442011

Protective Face Transducer, 2.25 MHz, 0.50 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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2.25 0.75 19 A605S-RB

U8440009

Protective Face Transducer, 2.25 MHz, 0.75 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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 V605-RB

U8442009

Protective Face Transducer, 2.25 MHz, 0.75 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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2.25 1 25 A604S-RB

U8440007

Protective Face Transducer, 2.25 MHz, 1.00 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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C604-RB

U8441003

Centrascan Composite Protective Face Transducer, 2.25 MHz, 1.00 in. Element Diameter, Right Angle BNC Connector Includes Test Form Certificate
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V604-RB

U8442007

Protective Face Transducer, 2.25 MHz, 1.00 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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2.25 1.125 29 A697S-RB

U8440038

Protective Face Transducer, 2.25 MHz, 1.125 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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 V697-RB

U8442039

Protective Face Transducer, 2.25 MHz, 1.125 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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2.25 1.5 39 A695S-RB

U8440037

Protective Face Transducer, 2.25 MHz, 1.50 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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 V695-RB

U8442037

Protective Face Transducer, 2.25 MHz, 1.50 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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3.5 0.5 13 A682S-RB

U8440027

Protective Face Transducer, 3.5 MHz, 0.50 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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 V682-RB

U8442027

Protective Face Transducer, 3.5 MHz, 0.50 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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3.5 0.75 19 A681S-RB

U8440025

Protective Face Transducer, 3.5 MHz, 0.75 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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 V681-RB

U8442025

Protective Face Transducer, 3.5 MHz, 0.75 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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3.5 1 25 A680S-RB

U8440023

Protective Face Transducer, 3.5 MHz, 1.00 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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 V680-RB

U8442023

Protective Face Transducer, 3.5 MHz, 1.00 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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5 0.5 13 A609S-RB

U8440017

Protective Face Transducer, 5 MHz, 0.50 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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C609-RB

U8441006

Centrascan Composite Protective Face Transducer, 5.00 MHz, 0.50 in. Element Diameter, Miniature Screw-In Case Style, Right Angle BNC Connector Includes Test Form Certificate
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V609-RB

U8442017

Protective Face Transducer, 5 MHz, 0.50 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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5 0.75 19 A608S-RB

U8440015

Protective Face Transducer, 5 MHz, 0.75 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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 V608-RB

U8442015

Protective Face Transducer, 5 MHz, 0.75 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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5 1 25 A607S-RB

U8440013

Protective Face Transducer, 5 MHz, 1.00 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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 V607-RB

U8442013

Protective Face Transducer, 5 MHz, 1.00 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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10 0.5 13 A611S-RB

U8440019

Protective Face Transducer, 10 MHz, 0.50 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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 V611-RB

U8442019

Protective Face Transducer, 10 MHz, 0.50 in. Element Diameter, Right BNC Connector Includes Test Form Certificate
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Advantages:

  • Provides versatility by offering removable delay line, protective wear cap, and protective membrane
  • When the transducer is used alone (without any of the options), the epoxy wear face provides good acoustic impedance matching into plastics, many composites, and other low impedance materials
  • Cases are threaded for easy attachment to the delay line, protective membrane, and wear cap options

Applications:

  • Straight beam flaw detection
  • Thickness gaging
  • High temperature inspections
  • Inspection of plates, billets, bars, and forgings
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