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Cygnus 4+ General Purpose Ultrasonic Thickness Meter

A versatile thickness meter used for a wide range of applications, the Cygnus 4+ offers: live A-scan display; sequential data logging (recording of measurements); an optional high temperature transducer; and 3 distinct measuring modes to cope with a wide range of situations. All these features are wrapped up in a hugely robust housing – and the unit is still extremely simple to operate.


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Description

 

  • Echo-Echo and Single-Echo modes for heavily corroded metals with thin or no coatings
  • Multiple-Echo mode for accurate measurements through coatings – as specified by all major Classification Societies
  • Deep Coat function ignores coatings up to 0.8 inch (20 mm)
  • Measurements can be taken on hot surfaces, up to 572°F, using the Cygnus High Temperature Transducer (T5B-MAUH)
  • Manual and automatic gain control
  • Min/max measurement limit functions with visual and vibrate alert
  • One and two point calibration.
  • Large front sunlight readable LCD display (with live A-scan / waveform)
  • Water and dust tight IP67 housing
  • Shock and impact proof to US MIL STD 810G
  • Safe operation in explosive atmospheres: Class 1, Division 2, Group D locations only, as defined in NFPA 70, Article 500
  • Can be upgraded to 6+ at an additional cost.
 

Using the T5B-MAUH high temperature transducer, measurements can be taken on hot surfaces of up to 572°F.

No cooling period is required – which can reduce inspection time and facilitate more effective measurement.

Optional upgrade to braided cable.

  • Linear based data logging
  • Technician can pre-define 8 different comments and then attach to any measurement point
  • Auto-log feature
  • Saves both measurements and corresponding A-Scans (waveforms)
  • Logged points stored on SD card
  • CygLink software used to transfer and manage data.

  • Multiple-Echo mode uses three error checked back wall echoes to provide the most reliable and accurate remaining thickness measurements possible, with no need to remove coatings up to 0.8 inch (20mm) thick.
  • Single-Echo mode is ideal for measuring uncoated metals with heavy front and/or back-wall corrosion. This mode is also effective on a range of cast metals, plastics and composites.
  • Echo-Echo mode works best for measuring heavily corroded metals through thin coatings of up to 0.04 inch thick; ideal for measuring painted metals with heavy back wall corrosion.

Exclusive to Cygnus, MSI™ ensures stable and therefore reliable measurements are displayed in Echo‑Echo and Single-Echo modes.

Multiple-Echo Ignores Coatings up to 0.8 inch (20mm) Thick

Measuring Modes Multiple-Echo using 3 echoes to ignore coatings up to 0.8 inch (20 mm) thick
Echo-Echo using 2 echoes to ignore coatings up to 0.04 inch (1 mm) thick
Single-Echo using 1 echo
Materials Velocities from 0.0390 – 0.3543 in/us (1,000 – 9,000 m/s)
Accuracy ±0.002 inch (±0.05 mm) – in Multiple-Echo measurement mode, when calibrated and measuring the same material as calibrated on
±0.004 inch (±0.1 mm) or 0.1% of thickness measurement whichever is the greatest – in Single-Echo & Echo-Echo measurement modes, when calibrated and measuring the same material as calibrated on
Resolution Multiple-Echo mode – 0.005 inch (0.1 mm) or 0.002 inch (0.05 mm)
Single-Echo and Echo-Echo modes – 0.005 inch (0.1 mm) or 0.001 inch (0.01 mm)
Transducer Options Single crystal transducers, Twin crystal transducers and High temperature transducer
Measurement Range in Steel 0.031 – 10 inch (0.8 – 250 mm) depending on selected transducer and configuration, material and temperature
Connector 2 x Lemo 00
Power 3 x AA / R6 batteries
Battery Life Approx. 10 hours continuous measurement
Electronics Dual channel pulser
Display 2.4 inch QVGA LCD: 47 x 37 mm
Size 3.3 x 5.1 x 1.4 inch (84 x 130 x 35 mm)
Weight 10.5 oz (300 g) (inc. batteries)
Operating Temp. 14°F to 122°F (-10°C to 50°C)
Data Logging 5,000 measurements and A-scans per record. Max number records: 100 (soft limit)
Computer Software CygLink allows remote logging and viewing of A-scan graphs
Survey and report generation to PDF file
Graphic analysis of data and statistical calculations
Environmental Rating IP67
Safe operation in Explosive Atmospheres: Class I, Division 2, Group D Locations only, as defined in the National Fire Protection Association Code (NFPA 70), Article 500. Tested using MIL-STD-810G, Method 511.5, Procedure I
MIL STD 810G Method 501.6 (high temp 131°F (+55°C))
MIL STD 810G Method 502.6 (low temp -4°F (-20°C))
MIL STD 810G Method 507.6 (humidity 95%)
MIL STD 810G Method 512.6 (immersion 1 metre for 30 mins)
Shock and Impact MIL STD 810G Method 514.7 (vibration)
MIL STD 810G Method 516.7 (shock 20g)
MIL STD 810G Method 516.7 (transit drop 1.22 m)
Standards Designed for EN 15317
Compliance CE, UKCA, RoHS
Warranty 3 years on gage and 6 months on transducer

Transducers

Variety of Cygnus INOX Transducers

  • Stainless steel SINGLE CRYSTAL transducers, used in multiple-echo mode, include replaceable membranes for long life, require no zeroing and have a high linear accuracy.
  • Stainless steel TWIN CRYSTAL transducers, used in echo-echo and single-echo modes, have improved measurability on extreme back wall corrosion and pitting.
  • Transducers for use with the Cygnus 2+, 4, 4+ and 6+ gages are fitted with a BNC or Lemo 00 connector.

Single Crystal Transducers

Twin Crystal Transducers

High Temperature Transducer

Twin element ultrasonic transducer designed for high-temperature, in-service thickness measurements and corrosion surveys across oil & gas, refining, energy and process sectors.

  • No cooling period required – reducing inspection time and facilitating effective measurement
  • For use on hot surfaces up to 300°C
  • Measures remaining wall thickness from 0.05 to 9.8 inch (1.5 to 250 mm) – depending on temperature and material.

Brochure

Cygnus 4 Plus Brochure

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