DeFelsko PosiTector UTG

Ultrasonic Wall Thickness Gauges

Ultrasonic Wall Thickness Gauges (ultrasonic thickness gauges, ultrasonic thickness testers, ultrasonic thickness meters, UT gauges, etc.) measure the wall thickness of materials such as steel, plastic, and more using ultrasonic technology. Ultrasonic Thickness Gauges are ideal for measuring the effects of corrosion or erosion on tanks, pipes, or any structure where access is limited to one side. Multiple echo Thru-Paint models (UTG M) measure the metal thickness of a painted structure without having to remove the coating.

  • Precision ultrasonic transducers provide fast, accurate readings
  • NEW Larger 2.8" impact resistant color touchscreen with redesigned keypad for quick menu navigation
  • NEW Weatherproof, dustproof, and water-resistant—IP65-rated enclosure
  • Pre-programmed velocities—Simply select from a list of common materials or enter your own with ease
  • Min Scan mode—take continuous readings and record min/max thicknesses — ideal for quick inspection
  • PosiTector interchangeable platform—attach any PosiTector probe to a single gage body
  • USB, WiFi, and Bluetooth connectivity to PosiSoft PC, Mac, and Smartphone software

DeFelsko PosiTector UTG

Conforms to ASTM E797


What is Ultrasonic Thickness Measurement?

Ultrasonic thickness measurement techniques are used to measure a wide range of substrates and applications for loss of material thickness due to corrosion or erosion. Ultrasonic Thickness Gauges are designed for measuring the thickness of metallic (cast iron, steel and aluminum) and non-metallic (ceramics, plastics and glass) substrates and any other ultrasonic wave-conductor provided it has relatively parallel top and bottom surfaces.

An ultrasonic thickness gauge facilitates rapid inspection of the thickness of large metallic structures at small measurement intervals, providing a high-detail thickness map of a scanned surface. When access is only available from one side of the substrate, ultrasonic wall thickness measurement is the most efficient way to monitor the effects of erosion or corrosion and is instrumental to both quality assurance and quality control.


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Ultrasonic Thickness Gauges – Corrosion - PosiTector UTG C Series
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Corrosion probes measure the wall thickness of materials such as steel, plastic, and more. Ultrasonic Thickness Gauges are ideal for measuring the effects of corrosion or erosion
on tanks, pipes, or any structure where access is limited to one side.

  • 5 MHz dual element transducer
  • Our most ultrasonic thickness popular probes for measuring the effects of corrosion on steel substrates
  • Select from cabled, integral, and Xtreme probes

DeFelsko PosiTector UTG C1 DeFelsko PosiTector UTG CA1 DeFelsko PosiTector UTG CX1

PosiTector UTG C
Corrosion with Cabled Probe

PosiTector UTG CA
Corrosion with Integral Probe
PosiTector UTG CX
Corrosion with Xtreme Probe


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Ultrasonic Thickness Gauges – Thru-Paint UT Thickness Gauge - PosiTector UTG M
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Ultrasonic Thickness Tester features Thru-Paint capability to quickly and accurately measure the metal thickness of a painted structure without having to remove the coating. Also ideal for measuring blasted materials and other applications requiring a more durable wear face.

  • 5 MHz contact probe with wear resistant alumina probe tip and cabled probe
  • Multiple-Echo technique averages 3 or more echoes for accurate and reliable readings
  • Toggle between Single and Multiple-Echo modes
    • Multiple Echo mode eliminates coating thickness
    • Single Echo mode detects pits/flaws and increases measurement range


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Ultrasonic Thickness Gauges – Cast Iron - PosiTector UTG CLF
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Low frequency ultrasonic thickness probes measures the wall thickness of attenuative materials such as cast/ductile iron, cast aluminum, and cast zinc.

  • Low frequency 2.25 MHz dual element transducer with cabled probe
  • Proprietary algorithm distinguishes back wall reflections from grain noise (reflections) found in cast materials
  • Ideal for measuring attenuative materials such as cast iron


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Ultrasonic Thickness Gauges - Precision – PosiTector UTG P
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Precision Ultrasonic Thickness Meters are designed for high resolution measurements and thin materials including metals and plastics. Automatic Multi-Echo mode ensures the best accuracy on thin metals.

  • 15 MHz Single element delay line with cabled probe
  • Automatic single-echo or multiple-echo mode depending on material thickness
  • Automatic probe tip temperature compensation
  • Ideal for thru-paint applications to quickly and accurately measure the metal thickness of a painted structure without having to remove the coating
  • Precision probe ideal for thin materials
    • Minimum steel measuring range: 0.008" (0.2 mm)
    • Minimum plastic measuring range: 0.005" (0.125 mm)


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DeFelsko PosiTector UTG Ultrasonic Wall Thickness Gages: 6 STANDARD MODELS AVAILABLE
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DeFelsko PosiTector UTG C1 DeFelsko PosiTector UTG CA1 DeFelsko PosiTector UTG CX1
DeFelsko PosiTector UTG C1 DeFelsko PosiTector UTG CA1 DeFelsko PosiTector UTG CX1
READING STORAGE CAPACITY READING STORAGE CAPACITY READING STORAGE CAPACITY
1,000 per probe 1,000 per probe 1,000 per probe
INCLUDES WIFI AND BLUETOOTH INCLUDES WIFI AND BLUETOOTH INCLUDES WIFI AND BLUETOOTH
No No No
PROBE TYPE PROBE TYPE PROBE TYPE
5 MHz Dual Element 5 MHz Dual Element 5 MHz Dual Element
THRU-PAINT CAPABILITY THRU-PAINT CAPABILITY THRU-PAINT CAPABILITY
No No No
MEASURING RANGE* MEASURING RANGE* MEASURING RANGE*
0.040" to 5.000"
1.00 to 125.00 mm
0.040" to 5.000"
1.00 to 125.00 mm
0.040" to 5.000"
1.00 to 125.00 mm
ACCURACY ACCURACY ACCURACY
± 0.001"
± 0.03 mm
± 0.001"
± 0.03 mm
± 0.001"
± 0.03 mm

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DeFelsko PosiTector UTG CLF1 DeFelsko PosiTector UTG M1 DeFelsko PosiTector UTG P1
DeFelsko PosiTector UTG CLF1^ DeFelsko PosiTector UTG M1 DeFelsko PosiTector UTG P1
READING STORAGE CAPACITY READING STORAGE CAPACITY READING STORAGE CAPACITY
1,000 per probe 1,000 per probe 1,000 per probe
INCLUDES WIFI AND BLUETOOTH INCLUDES WIFI AND BLUETOOTH INCLUDES WIFI AND BLUETOOTH
No No No
PROBE TYPE PROBE TYPE PROBE TYPE
2.25 MHz Dual Element 5 MHz Contact 15 MHz Single Element Delay Line
THRU-PAINT CAPABILITY THRU-PAINT CAPABILITY THRU-PAINT CAPABILITY
No Yes Yes
MEASURING RANGE* - MULTIPLE ECHO SINGLE ECHO MEASURING RANGE* STEEL MEASURING RANGE*
NA 0.100" to 5.000"
2.50 to 125.00 mm
0.008" to 0.475"
0.2 to 12.0 mm
MEASURING RANGE* MULTIPLE ECHO MEASURING RANGE* PLASTIC MEASURING RANGE*
0.080" to 5.000"
2.00 to 125.00 mm
0.100" to 2.500"
2.50 to 60.00 mm
0.005" to 0.175"
0.125 to 4.500 mm
ACCURACY ACCURACY ACCURACY
± 0.001"
± 0.03 mm
± 0.001"
± 0.03 mm
± 0.0004"
±0.01 mm

^ 2.25 MHz Dual Element transducer with cabled probe, designed for measuring attenuative materials such as cast iron
* Measurement range is for carbon steel and depends upon surface condition, temperature and material.


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DeFelsko PosiTector UTG Ultrasonic Wall Thickness Gages: 6 ADVANCED MODELS AVAILABLE
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DeFelsko PosiTector UTG C3 DeFelsko PosiTector UTG CA3 DeFelsko PosiTector UTG CX3
DeFelsko PosiTector UTG C3 DeFelsko PosiTector UTG CA3 DeFelsko PosiTector UTG CX3
READING STORAGE CAPACITY READING STORAGE CAPACITY READING STORAGE CAPACITY
250,000 in up to 1,000 batches 250,000 in up to 1,000 batches 250,000 in up to 1,000 batches
INCLUDES WIFI AND BLUETOOTH INCLUDES WIFI AND BLUETOOTH INCLUDES WIFI AND BLUETOOTH
Yes Yes Yes
PROBE TYPE PROBE TYPE PROBE TYPE
5 MHz Dual Element 5 MHz Dual Element 5 MHz Dual Element
THRU-PAINT CAPABILITY THRU-PAINT CAPABILITY THRU-PAINT CAPABILITY
No No No
MEASURING RANGE* MEASURING RANGE* MEASURING RANGE*
0.040" to 5.000"
1.00 to 125.00 mm
0.040" to 5.000"
1.00 to 125.00 mm
0.040" to 5.000"
1.00 to 125.00 mm
ACCURACY ACCURACY ACCURACY
± 0.001"
± 0.03 mm
± 0.001"
± 0.03 mm
± 0.001"
± 0.03 mm

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DeFelsko PosiTector UTG CLF3 DeFelsko PosiTector UTG M3 DeFelsko PosiTector UTG P3
DeFelsko PosiTector UTG CLF3^ DeFelsko PosiTector UTG M3 DeFelsko PosiTector UTG P3
READING STORAGE CAPACITY READING STORAGE CAPACITY READING STORAGE CAPACITY
250,000 in up to 1,000 batches 250,000 in up to 1,000 batches 250,000 in up to 1,000 batches
INCLUDES WIFI AND BLUETOOTH INCLUDES WIFI AND BLUETOOTH INCLUDES WIFI AND BLUETOOTH
Yes Yes Yes
PROBE TYPE PROBE TYPE PROBE TYPE
2.25 MHz Dual Element 5 MHz Contact 15 MHz Single Element Delay Line
THRU-PAINT CAPABILITY THRU-PAINT CAPABILITY THRU-PAINT CAPABILITY
No Yes Yes
MEASURING RANGE* - MULTIPLE ECHO SINGLE ECHO MEASURING RANGE* STEEL MEASURING RANGE*
NA 0.100" to 5.000"
2.50 to 125.00 mm
0.008" to 0.475"
0.2 to 12.0 mm
MEASURING RANGE* MULTIPLE ECHO MEASURING RANGE* PLASTIC MEASURING RANGE*
0.080" to 5.000"
2.00 to 125.00 mm
0.100" to 2.500"
2.50 to 60.00 mm
0.005" to 0.175"
0.125 to 4.500 mm
ACCURACY ACCURACY ACCURACY
± 0.001"
± 0.03 mm
± 0.001"
± 0.03 mm
± 0.0004"
±0.01 mm

^ 2.25 MHz Dual Element transducer with cabled probe, designed for measuring attenuative materials such as cast iron
* Measurement range is for carbon steel and depends upon surface condition, temperature and material.


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DeFelsko PosiTector UTG Ultrasonic Wall Thickness Gages: PROBE ORDER GUIDE
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DeFelsko PosiTector PRBUTGC DeFelsko PosiTector PRBUTGCA DeFelsko PosiTector PRBUTGCX
DeFelsko PosiTector PRBUTGC DeFelsko PosiTector PRBUTGCA DeFelsko PosiTector PRBUTGCX
PROBE TYPE PROBE TYPE PROBE TYPE
5 MHz Dual Element 5 MHz Dual Element 5 MHz Dual Element
THRU-PAINT CAPABILITY THRU-PAINT CAPABILITY THRU-PAINT CAPABILITY
No No No
MEASURING RANGE* MEASURING RANGE* MEASURING RANGE*
0.040" to 5.000"
1.00 to 125.00 mm
0.040" to 5.000"
1.00 to 125.00 mm
0.040" to 5.000"
1.00 to 125.00 mm
ACCURACY ACCURACY ACCURACY
± 0.001"
± 0.03 mm
± 0.001"
± 0.03 mm
± 0.001"
± 0.03 mm

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DeFelsko PosiTector PRBUTGCLF DeFelsko PosiTector PRBUTGM DeFelsko PosiTector PRBUTGP
DeFelsko PosiTector PRBUTGCLF^ DeFelsko PosiTector PRBUTGM DeFelsko PosiTector PRBUTGP
PROBE TYPE PROBE TYPE PROBE TYPE
2.25 MHz Dual Element 5 MHz Contact 15 MHz Single Element Delay Line
THRU-PAINT CAPABILITY THRU-PAINT CAPABILITY THRU-PAINT CAPABILITY
No Yes Yes
MEASURING RANGE* - MULTIPLE ECHO SINGLE ECHO MEASURING RANGE* STEEL MEASURING RANGE*
NA 0.100" to 5.000"
2.50 to 125.00 mm
0.008" to 0.475"
0.2 to 12.0 mm
MEASURING RANGE* MULTIPLE ECHO MEASURING RANGE* PLASTIC MEASURING RANGE*
0.080" to 5.000"
2.00 to 125.00 mm
0.100" to 2.500"
2.50 to 60.00 mm
0.005" to 0.175"
0.125 to 4.500 mm
ACCURACY ACCURACY ACCURACY
± 0.001"
± 0.03 mm
± 0.001"
± 0.03 mm
± 0.0004"
±0.01 mm

^ 2.25 MHz Dual Element transducer with cabled probe, designed for measuring attenuative materials such as cast iron
* Measurement range is for carbon steel and depends upon surface condition, temperature and material.


lineDeFelsko PosiTector Gage Bodies: FEATURE COMPARISON CHARTline

Feature Comparison Chart DeFelsko Positector 6000 Standard Body
Standard
DeFelsko Positector 6000 Advanced Body
Advanced
Pre-programmed velocities - simply select from a list of common materials or enter your own with ease
NEW Larger 2.8" impact resistant color touchscreen with redesigned keypad for quick menu navigation
NEW On-gage help explains menu items at the touch of a button
NEW Weatherproof, dustproof, and water-resistant - IP65-rated enclosure
NEW Ergonomic design with durable rubberized grip
NEW Auto rotating display with Flip Lock
NEW Screen Capture - save 100 screen images for record keeping and review
NEW Instant-on feature quickly powers up the gage if recently powered down
NEW Up to 30% longer battery life
Reading Storage Capacity 1,000 per probe 250,000 in up to 1,000 batches
A-Scan with adjustable Gain and screen capture. UTG M and UTG P probes include dual cursors to measure the distance between echoes ---
B-Scan - displays a cross sectional profile of the test material ---
NEW Touchscreen keyboard for quickly renaming batches, adding notes, and more ---
WiFi technology wirelessly synchronizes with PosiSoft.net and downloads software updates ---
Bluetooth 4.0 Technology for data transfer to a mobile device running the PosiTector App or optional portable printer. BLE API available for integration into third-party software ---
Integrate with third-party software, drones, ROVs, PLCs, and robotic devices using several industry-standard communication protocols ---

For use with the: DeFelsko PosiTector 6000DeFelsko PosiTector 200DeFelsko PosiTector SPGDeFelsko PosiTector RTR HDeFelsko PosiTector RTR 3DDeFelsko PosiTector DPMDeFelsko PosiTector IRTDeFelsko PosiTector SST , DeFelsko PosiTector UTGDeFelsko PosiTector SHDDeFelsko PosiTector BHI


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PosiSoft Suite of Software
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Four FREE and unique ways to view and report your PosiTector and PosiTest data. Learn More

  • PosiSoft Desktop
  • PosiSoft.net
  • PosiTector App
  • PosiSoft USB


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Accessories for DeFelsko Inspection Instruments - Online Catalog

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Do your instruments require any formal training for use? Do you offer ‘demo’ models?

No. Our instruments are designed for simple operation, feature easy-to-use menus, both full and quick instruction manuals, and helpful videos. In lieu of demonstration models, we provide unlimited technical support via telephone and/or email, and a limited 30-day money back guarantee.

Is the PosiTector UTG calibrated at the factory?

The PosiTector UTG arrives fully calibrated and ready to measure. A Long-Form Certificate of Calibration traceable to NIST is included, which documents actual readings taken by your instrument at our calibration laboratory on standards traceable to a national metrology institute. Beware of ‘Certificates’ or ‘Certificates of Conformance’ offered by competitors. These typically do not include actual instrument readings, and are often insufficient to meet common quality equirements.

Verification of gage calibration and accuracy can be performed with the accessory Certified Step Block. If necessary, the PosiTector UTG operator can easily perform a calibration adjustment to align the gage’s thickness readings to match that of a known reference sample.

Can I measure the thickness of non-metallic materials like plastic and rubber with the PosiTector UTG?

Yes! The PosiTector UTG features several preprogrammed sound velocities for common materials. For best accuracy, make a simple adjustment to a known sample thickness of the material or quickly enter the material’s sound velocity into the gage. The PosiTector UTG C can be adjusted to a broad range of sound velocities spanning from 0.0492 to 0.393 mils/µs (1250 to 10000 m/s).

Can the PosiTector UTG measure cast/ductile iron or cast aluminum?

Our PosiTector UTG ultrasonic wall thickness instruments are designed to accurately measure the wall thickness of carbon steel, aluminum, stainless steel and plastic.

PosiTector UTG probes utilize a 5MHz transducer. Like other UT (ultrasonic wall thickness) gages utilizing a 5MHz transducer, the PosiTector UTG is challenged to provide reliable wall thickness measurements on cast metals including iron, aluminum and zinc. The internal structure of the cast metal typically interferes with the transmission of a 5MHz sound impulse causing the gage to yield inaccurate thickness readings.

What is the difference between the PosiTector UTG C and PosiTector UTG M?

The PosiTector UTG C (Corrosion) single echo probe uses a dual-element transducer, a focused “V-path”, and V-path compensation to accurately measure the thickness of metals with particularly heavy corrosion or pitting. The UTG C single echo probe will not ignore the thickness of the exterior coating: for best measurement accuracy, it may be necessary to remove any coating present at the point of measurement.

The PosiTector UTG M (Multi-echo) probe uses a single element transducer to accurately measure the metal thickness of a new or lightly corroded structure while ignoring the thickness of protective coatings. The ultrasonic beam travels in a straight path to the material’s back wall at 90° relative to the surface. When three consecutive back wall echoes are detected, the probe makes a time-based calculation to eliminate the coating thickness from the gage reading.

If there is paint on the surface and it can’t be removed, can the PosiTector UTG C be used?

Yes, but coatings such as paint have a slower sound velocity than metal. This means that coating ‘appears’ much thicker to the instrument than it actually is, and can substantially affect the reading. Using Thru-Paint technology, the PosiTector UTG M multi-echo probe disregards the exterior coating thickness on a painted metal structure and reports only the metal thickness.

Can the UTG measure the thickness of materials with heavy corrosion on the back/inside?

The PosiTector UTG C (Corrosion) is a proven solution for measuring the thickness of metal structures with pitting and/or moderate-to-severe corrosion on the back wall.

How often should the PosiTector probe be recalibrated?

PosiTector probes include a Certificate of Calibration with no expiry or end date. They have no shelf life, therefore the length of time in the field is not a good indicator for recalibration intervals. Many organizations with quality programs and recertification programs require annual recalibrations, and this is a good starting point for most users. Manufacturers recommend that customers establish calibration intervals based upon their own experience and work environment. Based on our product knowledge, data and customer feedback, a one year calibration interval from the date the instrument was placed in service is a good starting point.