Cygnus Underwater

The Cygnus Underwater is the original diver held subsea multiple echo Ultrasonic Thickness Gauge. It was designed for use by divers undertaking subsea mainte...
  • RINA approved (Certificate No. 2009DGPO787)
  • Auto - Probe Recognition (APR)
  • "Deep-Coat” mode for measuring through coatings up to 20 mm thick
  • Easy calibration using convenient buttons
  • Rugged, durable, shock-proof construction
  • Stable calibration - linear accuracy - no zero adjustment
  • Large bright LED display for poor visibility
  • Pressure rated to 300 m depth
  • Heavy duty sealed unit with double ‘O’ ring protection
  • Self verification of measurements to ensure accuracy
  • Echo strength indicator to aid measurement
  • All probes are protected by a membrane to prevent damage
  • Various probe options
  • Two rechargeable battery packs with charger
  • Fixed head probe option for single handed use.
Materials Sound velocities between 2000 m/s and 7000 m/s - covers virtually all common engineering materials
Measurement Range in Steel 3 mm - 250 mm with 2.25 MHz probe
2 mm - 150 mm with 3.5 MHz probe
1 mm - 50 mm with 5 MHz probe
Accuracy 0.1 mm when calibrated in accordance with Cygnus Instruments calibration procedures
Resolution 0.1 mm or 0.05 mm (selectable)
Probes Single crystal soft-faced compression
6 mm - 5 MHz
13 mm - 2.25, 3.5 or 5 MHz
19 mm - 2.25 MHz
Power NiMH rechargeable battery pack
Battery Life 30 hours (continuously measuring)
Display Large, bright LED display
Size 235 mm x 75 mm
Weight 950 g - with probe
860 g - with fixed head probe
Operating Temp -10°C to +50°C
Environmental Protection IPX8 continuous 300 m rating
Compliance CE, British Standard BS EN 15317:2013
Environmental RoHS, WEEE compliant
  • Maintenance and safety checks on bridges
  • Metal thickness / wear checks on jetties, dock gates, piers and piling systems.
  • Metal thickness and corrosion checks on offshore structures and ships
  • Safety corrosion monitoring of pipelines and storage vessels
  • Ships classification surveys.