Do you carry out inspections across tank farms, pipelines, jetty lines or loading systems in hazardous or hard-to-access areas?
If you depend on accurate thickness readings, reliable corrosion data and safe operation inside ATEX zones, specialised ultrasonic equipment can make your work faster, safer and more reliable.
Since 1983, Cygnus Instruments has been the leading manufacturer of digital Ultrasonic Thickness Gauges (UTG) for corrosion inspection and asset integrity management in complex environments. Our most advanced gauge – Cygnus 1 Ex – alongside the Cygnus 6+ Pro and Hatch Sure deliver reliable, data-driven inspection capability for environments where uptime, safety, and accuracy are critical.
Cygnus 1 Ex: The Safest Answer to Thickness Inspection in Hazardous Zones 0, 1, and 2
Bulk storage terminals operate within ATEX zones where vapour release and confined spaces present ignition risks. Cygnus 1 Ex—the world’s only fully certified intrinsically safe ultrasonic thickness gauge for ATEX Zone 0—allows in-service inspections without hot work permits, shutdowns or delays.
Suitable for tank roofs, shell courses, manifolds, pipelines and gas-freeing stages, the gauge is certified for IECEx, ATEX and UKEX hazardous areas. Paired with Cygnus’ High Temperature Ex Probe, it enables measurements on heated tanks, steam coils and transfer lines storing heavy fuel oils, bitumen and temperature-sensitive chemicals.
Intrinsic safety by design:
- Low-energy electronics eliminating spark risk
- Antistatic, impact-resistant housing
- Voltage clamp technologies and redundant safety electronics
- Fail-safe battery and thermal protection.
Cygnus’ Multiple Echo technology measures through coatings up to 20mm thick, eliminating costly coating removal and preserving protection.
Cygnus 6+ Pro: Advanced Corrosion Monitoring for Terminal Infrastructure
Corrosion affects tank shells, bottom plates, floating roofs, jetty lines and firewater systems. Cygnus 6+ Pro, the most advanced Cygnus surface gauge, provides high-precision corrosion assessment across terminal environments.
Key features:
- Large colour LCD for outdoor visibility
- Measures through coatings up to 20 mm
- Multiple measurement modes for varied corrosion levels
- Live A-scan and B-scan displays
- Manual gain and range controls
- MSI (Measurement Stability Indicator)
- Comprehensive data logging with auto-log and radial mapping.
The lightweight, IP67-rated, shatter-resistant design supports safe use on tank roofs, pipe racks and marine loading areas.
Cygnus Hatch Sure: Efficient Seal Tightness Testing
For tightness verification requirements – i.e., tank hatches, pump rooms, enclosures and control cabinets – Cygnus Hatch Sure provides a clean, fast, and accurate ultrasonic alternative to hose testing, detecting gasket wear, poor compression, and small leakage paths that compromise product containment and environmental compliance.
With 19 emitters and adjustable power levels, it enables single-operator testing without removing stored contents.
Strengthening Terminal Asset Integrity
Together, the Cygnus 1 Ex, Cygnus 6+ Pro and Cygnus Hatch Sure:
- Maximise uptime via in-service inspection
- Reduce maintenance costs
- Improve hazardous‑area safety
- Extend asset life
- Support regulatory compliance.
