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    Conventional Ultrasonic

    This method utilizes standard high-frequency sound waves to measure thickness and accurately locate internal material flaws. Explore our comprehensive range of standard gauges, intrinsically safe devices, specialized underwater equipment, and highly reliable flaw detectors.

    Advanced Ultrasonic

    Cutting-edge multi-element phased array technology designed for complex geometries and advanced visualization. Find high-quality phased array systems, highly sensitive multi-element probes, transducers, and optimized angle wedges for precise testing.

    Acoustic Emission

    Designed to detect and monitor transient elastic waves caused by rapid energy release within materials under stress. Browse our selection of real-time valve monitoring systems to easily identify leak-through and critical structural stress.

    Guided Wave

    Perform rapid, long-range screening of pipelines and structures to confidently detect corrosion and defects over vast distances. Discover specialized long-range ultrasonic testing collars, advanced transducer rings, and highly accurate screening software.

    Conventional Radiography

    A time-tested film-based radiography method utilizing X-ray and gamma-ray sources for perfectly clear internal structural imaging. Equip your team with robust gamma projectors, close proximity systems, darkroom processing chemicals, and comprehensive radiation safety gear.

    Digital Radiography

    Modern digital sensors and computed radiography equipment delivering instant, high-resolution internal inspection imagery. Find flexible CR imaging plates, high-speed scanners, digital X-ray flat panel detectors, and portable X-ray generators.

    Electromagnetic

    Fast and highly sensitive electromagnetic fields used primarily for surface crack detection and metal sorting. Discover advanced eddy current testers, pulsed eddy current systems, magnetic flux leakage scanners, yokes, and Ardrox consumables.

    Material Analysers

    Identify elemental composition and verify material grades quickly using specialized portable spectroscopy equipment. Browse our industry-leading handheld XRF and LIBS spectrometers for instant, non-destructive chemical analysis.

    Hardness Testing

    Ensure component strength and structural integrity by safely measuring the physical hardness of metals. Explore our range of portable hardness testers utilizing Leeb, Rockwell, and Ultrasonic Contact Impedance (UCI) methods.

    Leak Detection

    Discover microscopic escapes of gases or liquids to guarantee pressure containment and environmental safety. Find high-precision acoustic leak detectors and tracer gas equipment to pinpoint containment breaches instantly.

    Post-Weld Heat Treatment

    Relieve residual material stress after welding processes using controlled and precisely monitored thermal equipment. Equip your site with durable ceramic heating pads, precise power sources, automated chart recorders, and thermocouple accessories.

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    Remote-controlled inspection vehicles and crawlers for safe assessment of hazardous, confined, or hard-to-reach areas. Discover collision-tolerant unmanned aerial vehicles (UAVs), magnetic pipe crawlers, and advanced visual inspection software.

    Visual Inspection

    High-precision optical tools, surface scanners, and borescopes to examine visible exterior defects or finishes. Explore cutting-edge 3D handheld surface scanners, geometry analysis software, and precision surface roughness tools.

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    Specialized magnetic testing to identify broken wires or structural wear and tear in heavy load-bearing cables. Find dedicated magnetic wire rope inspection heads and continuous monitoring systems to secure cranes and rigging lines.
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    Mining

    Specialized NDT solutions and equipment tailored for the extreme demands of the mining sector. Find robust radiation safety gear, essential thickness gauges, advanced drone surveying tools, and phased array systems for structural engineering.

    Oil & Gas

    We are currently curating specialized equipment lists for this industry. Our robust offerings for Oil & Gas are coming soon!

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    Specialized structure currently under construction.

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    We are currently curating specialized equipment lists for this industry. Precision tools for Automotive engineering are coming soon!

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    Specialized structure currently under construction.

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    We are currently curating specialized equipment lists for this industry. Heavy-duty Railway NDT solutions are coming soon!

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    Specialized structure currently under construction.

    Aerospace

    We are currently curating specialized equipment lists for this industry. High-accuracy NDT instruments for Aerospace are coming soon!

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    Specialized structure currently under construction.

    Engineering

    We are currently curating specialized equipment lists for this industry. Dedicated Structural Engineering NDT solutions are coming soon!

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    Specialized structure currently under construction.

    EXERTUS FORTES

    EXERTUS FORTES

    The Exertus Fortes is ISO3999:2004 compliant and built with robust safety features. It accepts both Ir-192 and Se-75 sources, with a maximum capacity of 120 Ci (4.44 TBq) for both isotopes. It is lighter than many competing models, weighing just 23 kg with its polyurethane jacket. A key design element is the source channel, which uses a helicoidal design and Tungsten shielding to ensure smoother movement of the source assembly, enhancing both user-friendliness and safety. It operates across a wide temperature range of -45°C up to +70°C.
    The Exertus Fortes offers a superior combination of high-capacity source handling, exceptional portability and advanced safety mechanisms, making it an efficient and user-friendly choice for high-volume field radiography projects.
    Top Features & Benefits
    • Accepts Ir-192 or Se-75 sources (up to 120 Ci).
    • Tungsten source channel and helicoidal labyrinth for smooth operation and durability.
    • Lightweight: Just 24 kg with Jacket.
    • Compact Design.
    • Automatic Source Assembly Locking Mechanism.
    • 2 Colour Signal Safety Indicator for safety status communication.
    • Projector can be disconnected and locked only with source in safe position.
    View Product Details
  • Specials
  • Isotopes

    Isotopes

    The backbone of Non-Destructive Testing (NDT) for critical infrastructure. Providing highly reliable Se75 & Ir192 sources.
  • About Us

    About Us

    GammaTec NDT Supplies SOC Ltd, founded in 1981, is a leading provider of non-destructive testing (NDT) equipment, accessories, and consumables. With over 44 years of experience, the company has established a reputation for delivering high-quality solutions and outstanding customer support.
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Description

Detailed Overview

A mid-range multiple-echo ultrasonic thickness gauge with a simple, robust interface designed for ease of use in challenging environments. It measures material thickness accurately through thick coatings by ignoring the coating thickness. The gauge offers a straightforward and reliable tool for corrosion inspection on metal structures, ensuring that critical assets remain in service longer.


Survey mode and a large multi-functional display for simple, fast corrosion inspections.

  • Featuring a large color LCD and an intuitive menu, this gauge is optimized for fast, accurate measurements using the multiple-echo technique.
  • Its ‘Survey Mode’ is ideal for quickly screening large areas, indicating acceptable or problematic thickness readings clearly via color-coded alerts.
  • The package includes the gauge body, couplant, and a protective carrying case.
  • The three-button operation minimizes complexity and speeds up measurement time, perfect for high-volume inspection tasks.

Top Features & Benefits

  • Multiple-Echo technology for coating tolerance, accurately measuring through coatings up to 20 mm thick.
  • Simple three-button operation for minimal training and fast results.
  • End-mounted display for easy viewing during rope access and awkward handheld use.
  • Shock-proof and water-resistant (IP65/67) housing for maximum field durability.
  • Includes Single-Echo mode (uncoated or heavily corroded) and Echo-Echo mode (deep coating) for versatility.
  • Exceptional battery life (up to 30 hours) for extended field work.

Primary Uses & Functions

A rugged ultrasonic gauge for non-destructive thickness measurement in demanding industrial settings, providing reliable wall thickness data. Its core function is to facilitate rapid corrosion surveys and integrity assessments on coated metal structures.


Real-World Applications

  • General purpose Corrosion Measurement on metals, including steel and iron components.
  • Thickness measurement of pitted materials using the Echo-Echo mode for improved accuracy.
  • Inspection of pipelines, storage tanks, and ship hulls without the need for prior coating removal.
  • Rapid screening of large structural components in civil engineering and marine environments.

Industry Solutions

  • Oil & Gas (Corrosion monitoring on platforms and refineries)
  • Petrochemical
  • Railway
  • Automotive
  • Mining
  • Power Generation (Boiler tubes and structural checks)
  • Wind & Solar
  • Manufacturing
  • Marine Surveying

Technical Specifications

Measuring Mode Multiple-Echo (through coat, up to 20 mm thick), Single-Echo, Echo-Echo
Measurement Range (Steel, 2.25 MHz probe) 3 mm – 250 mm (0.120” – 10.00”) (Probe dependent)
Accuracy plus or minus 0.1 mm (plus or minus 0.004”)
Resolution 0.1 mm (0.005 in) or 0.05 mm (0.002 in) (selectable)
Power 2 x ‘AA’ alkaline or rechargeable NiMH / NiCD batteries
Battery Life Up to 30 hours’ continuous operation (alkaline)
Weight 275 g (9.7 oz) (including batteries)
IP Rating IP65 & IP67 (Dust tight and water immersion protected)
Display End-mounted rotatable LCD for hands-free view, Front QVGA LCD for setup and Survey Mode

 


Compatibility

  • Robust and simple to use for marine, civil engineering, and general industrial applications.
  • Offers Multiple Echo for through-coat, and Single Echo/Echo-Echo for uncoated or highly corroded surfaces, providing high versatility.
  • Compatible with standard dual-element ultrasonic probes.

What’s In The Box?

  • Multi-Mode ultrasonic thickness gauge unit.
  • Batteries (often alkaline).
  • Calibration block, couplant, and durable carry case.
  • Wrist strap and user manual.

Also Known As

Corrosion Meter, Multiple Echo Tester, Through-Coating Gauge, Survey Mode UT Gauge


FAQ: Cygnus 4 – Ultrasonic Thickness Gauge

Does the Cygnus 4 support datalogging?

The standard Cygnus 4 is typically a basic, read-only gauge, while the 4+ and Pro versions usually include datalogging capabilities.

**Errors and omissions excepted (E&OE)

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Related Products

CYGNUS 4 – ULTRASONIC THICKNESS GAUGE

Capture and manage detailed corrosion data with a user-friendly, feature-rich UT gauge. The Cygnus 4 is a rugged Ultrasonic Thickness Gauge offering the Multiple-Echo technique (through-coat) plus Single-Echo mode for uncoated metals. It features extensive data logging and a clear LCD display, solving the challenge of efficiently recording and reporting corrosion survey data in harsh industrial environments. Supplier: Cygnus Instruments Ltd.