Cygnus 1 Ex (Intrinsically Safe)

The Cygnus 1 Ex is an intrinsically safe ultrasonic thickness gauge designed to deliver accurate, through-coating metal thickness measurements, even in the most hazardous environments.

Certified to ATEX, IECEx, and UKEX standards, the Cygnus EX 1 is approved for use in gas Zones 0, 1, 2; combustible dust Zones 21 and 22; and coal mines, which means it can be safely used around flammable gases, dust, and other explosive atmospheres—no hot work permit needed.

Equipment Type: Ultrasonic Thickness Gauge

Benefits of Cygnus 1 Ex

  • Thickness measurements in explosive or hazardous environments
  • Through-coating inspections (up to 20mm coatings)
  • Measuring heavily corroded or eroded metals
  • High-temperature surface measurements (up to 300°C / 570°F)
  • Visual verification with Live A-Scans and B-Scans
  • Advanced data logging with up to 10,000 points per record
  • Corrosion and integrity inspections (AIM, IRM)
  • Measurement of non-ferrous metals and some engineering plastics
  • Pipelines
  • Hazardous storage tanks
  • Road tankers and vessel tankers
  • Hot process equipment and vessels
  • Coated and uncoated metal structures
  • Corroded infrastructure
  • Cast metals, plastics, and composites
  • Ship hulls
  • Pressure vessels
  • Oil & gas
  • Chemical processing
  • Mining
  • Food Processing
  • Manufacturing & fabrication
  • Civil Engineering
  • Maritime
  • Plant maintenance
  • General industrial applications

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Cygnus 1 Ex: Intrinsically Safe Ultrasonic Testing

Engineered for precision and safety in the most demanding environments, the Cygnus 1 Ex is a trusted solution for ultrasonic thickness measurements where conventional tools fall short. 

With its rugged construction and certified intrinsic safety, this gauge is built for industries that operate under strict safety protocols and in potentially explosive atmospheres.

Whether it’s routine inspection or critical asset monitoring, the Cygnus 1 Ex delivers the reliability, durability, and ease of use needed to keep operations running smoothly without unnecessary risks or delays.

Key Features of the Cygnus 1 Ex Ultrasonic Thickness Gauge

The Cygnus 1 Ex is ideal for applications in oil and gas, chemical processing, fuel storage, and mining—industries where safety and measurement precision are critical. It supports Multiple-Echo, Echo-Echo, and Single-Echo modes, enabling accurate thickness measurements even through coatings and heavily corroded materials. Real-time Live A-Scans and B-Scans offer visual confirmation of readings and cross-sectional insights.

Designed for demanding environments, it includes a high-temperature probe that can measure surfaces up to 300°C (570°F). The device also offers user access controls and the ability to save and reload custom setups, streamlining inspections and enhancing safety in explosive or hazardous conditions.

Measure Through Coatings Even on Hot Surfaces

The Cygnus 1 Ex delivers accurate thickness measurements without the need to remove coatings, using Multiple-Echo mode to ignore paint or protective layers up to 20mm thick. 

For high-temperature assets, the optional High Temperature Ex Probe allows for continuous readings on surfaces up to 300°C (570°F), with automatic temperature compensation for precise results. 

This capability reduces downtime, eliminates unnecessary preparation steps, and supports safer inspections in active, high-risk environments.

Visualize Every Reading & Document Every Detail

The Cygnus 1 Ex offers advanced data logging features designed for demanding inspection workflows. 

With support for up to 10,000 measurement points per record, structured grids, and customizable templates, it makes tracking corrosion and material loss more organized and repeatable.

Live A-Scans provide real-time echo signal verification to ensure each reading is valid, while B-Scans give a cross-sectional view of the material for quick visual reference. 

Together, these tools improve traceability, reduce uncertainty, and give inspectors the confidence that every measurement counts.

Adaptable Ultrasonic Testing for Coated, Corroded, and Non-Metal Surfaces

Whether you’re measuring coated steel, corroded metal, or even select non-metals, the Cygnus 1 Ex offers the flexibility needed for reliable results. 

It includes Multiple-Echo, Echo-Echo, and Single-Echo modes, each optimized for different surface conditions and materials—from painted pipelines to bare, pitted structures. 

The gauge supports a wide range of sound velocities, making it suitable for various metals and certain engineering plastics. This adaptability ensures accurate thickness readings across a broad spectrum of inspection scenarios.

Certified Safe. Engineered for Precision. Ready When You Are.

The Cygnus 1 Ex is designed for hazardous environments where accuracy and safety go hand in hand. It’s fully certified to ATEX, IECEx, and UKEX standards, eliminating the need for hot work permits in explosive atmospheres. 

At the same time, Cygnus 1 Ex delivers precision up to ±0.1 mm, with flexible calibration options and advanced measurement stability features that ensure reliable, repeatable results. 

Whether you’re working on pipelines, storage tanks, or high-temperature assets, you can trust the Cygnus 1 Ex to perform—safely and accurately. Reach out today for pricing and availability.

Cygnus 1 Ex Technical Specifications

Measurement Modes
  • Single Echo with Twin Crystal Transducers
  • Echo-Echo with Twin Crystal Transducers
  • Multiple Echo with Single Crystal Transducers
  • Measurement Range (in Steel)0.031 to 10 inches (0.8 to 250 mm), depending on transducer, material, and temperature
    Accuracy±0.004 inch (±0.1 mm) or 0.1% of thickness measurement whichever is the greatest
    Resolution0.1, 0.05, or 0.01 mm depending on transducer type
    MaterialsSound velocity from 0.0390 to 0.3543 in/us (1000 to 9000 m/s)
    Display3.5-inch VGA, sunlight-readable color display
    Transducer OptionsSingle crystal and twin crystal transducers
    ConnectorSingle Dual Coaxial Connector
    Power SupplyRechargeable, removable Lithium-Ion battery pack
    Battery Life6–8 hours of continuous measurement
    Power Rating2W
    Size270 x 135 x 80 mm
    Weight
  • 1 kg (gauge with battery)
  • 5 kg (complete gauge kit)
  • Data Logging:Stores up to 10,000 measurements and A-scans per record
    Computer SoftwareCygLink software for remote logging, A-scan viewing, report generation (PDF), data analysis, and statistical calculations
    ConnectivityBluetooth connection for transferring data to a Windows® computer with CygLink
    Certifications
  • ATEX: ExVeritas 21ATEX0860X
  • UKEX: ExVeritas 21UKEX0861X
  • IECEx: IECEx EXV 21.0035X
  • I M1 Ex ia Ma
  • II 1G Ex ia IIC T4 Ga
  • II 2D Ex ib IIIB T100°C Db
  • Operating Temperature32°F to 122°F (0°C to +50°C)
    Storage Temperature50°F to 149°F (-10°C to +65°C)
    Environmental ProtectionIP67, Pollution degree 3
    Standards ComplianceBS EN 15317-2013
    Warranty3 years on gauge, 6 months on transducer

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