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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.

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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