Cygnus Instruments

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Cygnus 1 Intrinsically Safe

With its bright, very large, AMOLED display the Cygnus DIVE is simple to operate, providing accurate and reliable thickness measurements, underwater.  Depth rated to 300 metres.

Available with data logging, topside, HelmetView™ and twin crystal probe options.

MSI™ Measurement Stability Indicator - this is a feature exclusive to the Cygnus. When using the DIVE gage in Single-Echo and Echo-Echo modes, MSI™ confirms when a reading is stable by turning the thickness measurement numbers from red to yellow.

Cygnus DIVE Brochure  Cygnus DIVE Accessories  CygLink Software

Enquire about the Cygnus DIVE  Watch Cygnus DIVE Video


Features

  • 300 m depth rated
  • Wrist-mountable, giving the diver a free hand
  • A-Scan (selectable)
  • Data logging - stores 5000 measurements and A-Scans
  • "Auto-Log” - no log button to press
  • AMOLED display, easy viewing from all angles for diver and camera
  • Multiple Echo, error- checked measurements through coatings up to 20 mm thick
  • Single-Echo - for use on uncoated surfaces with heavy back-wall corrosion/ pitting
  • MSI™ Measurement Stability Indicator - exclusive to Cygnus, confirms a stable reading in Single-Echo and Echo-Echo modes
  • Echo-Echo - for use on painted surfaces with heavy back-wall corrosion/ pitting (through up to 0.5 mm paint)
  • HelmetView™ - optional remote display.

Options

Topside Repeater with Video Overlay

Allows real-time thickness measurements and calibration settings to be overlaid on the dive monitor screen. Also supplied with a hand held repeater unit.

  • Measurements superimposed on to a composite PAL or NTSC video signal
  • Overlay can be re-positioned anywhere on the screen
  • Measurements and locations recorded on the survey video.

Surface Repeater

The Cygnus DIVE can be connected to a laptop on the surface running CygLink software. This can then be used to log readings and control gage settings, for example the velocity of sound. Reports and graphical analysis can then be produced and saved.

HelmetView™

Developed by Cygnus for divers in black or limited visibility water. The small remote OLED display is mounted just in front of the lens on the diver’s helmet. With adjustable brightness, the thickness measurement is clearly visible to the diver. When auto-log is being used, the HelmetView™ display will indicate when the reading is logged. 

Options Diagram for Topside Repeater, Surface Repeater and HelmetView

Data Logging

Up to 5,000 measurements and A-Scans can be stored. The "Auto-Log” feature saves each stable measurement meaning the diver doesn't have to press a button every time a readings needs to be logged. Supplied with CygLink version 4 software.

Media

Watch the Cygnus Instruments underwater thickness gage video on how Cygnus DIVE works.

Product Enquiry: Cygnus DIVE Underwater Gage


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Specification

Display
2.8” quarter VGA colour AMOLED (320 x 240 pixels)
Large clear thickness measurement (15 mm high numbers), viewable from all angles
A-Scan display with automatic X axis
Battery level, signal strength, probe type, velocity
Measurement mode and units indication
Battery
Single 3.6V Li-ion 8.2 W battery
11 hours continuous measurement
Low battery warning ‘alert’ message
Measurement Modes
Multiple-Echo (three back-wall echoes) using Single Crystal (zero-degree) probes automatically ignores surface coatings and measures only metal thickness 
Echo-Echo (two back-wall echos) using Twin Crystal probes
Single-Echo (first back-wall echo) using Twin Crystal probes
Deep Coat In Multiple-Echo mode, allows measurement to be made through thicker coatings of suitable materials of up to 20 mm thick
Accuracy ±0.1 mm (±0.004”) or 0.1% of thickness measurement, whichever is greatest, when calibrated in accordance with Cygnus Instruments calibration procedure
Probes
Single Crystal probes:
2.25 MHz 13 mm (standard) S2C
2.25 MHz 19 mm S2D
3.5 MHz 13 mm S3C
5.0 MHz 6 mm S5C

Twin Crystal probes:
2.0 MHz 13 mm x2 (for some plastics e.g. outfall pipes) T2C
5.0 MHz 8 mm x2 (standard) T5B
Probe Cables
Double outer jacket in tough PU.  Coloured yellow for easy locations underwater.  Coiled for ease of use.  Fischer S105 series connectors.
Measurement Ranges
Multiple-Echo (through coatings) with Single Crystal probes:
2.25 MHz = 3.0 to 250 mm
3.5 MHz = 2.0 to 150 mm
5.0 MHz = 1.0 to 50 mm
 
Echo-Echo with Twin Crystal probes:
5.0 MHz = 0.160" to 4.000" in steel
2.0 MHz = 0.120" to 6.000" in steel

Single-Echo with Twin Crystal probes:
5.0 MHz = 0.080" to 4.000" in steel
2.0 MHz = 0.120" to 6.000" in steel
Measurement Resolution
0.005" (0.1 mm) - Low resolution mode or measurement >99.95 mm
0.002" (0.05 mm) - High resolution mode and measurement <100.0 mm
0.001" (0.01 mm) - Single-Echo mode only and measurement <100.0 mm
0.002" (0.05 mm) - High resolution mode and measurement <100.0 mm
0.01" (0.01 mm) - Single-Echo mode only and measurement <100.0 mm
Measurement Units mm or inches
Probe Zero Fully automatic probe zeroing for all probes types
V-Path Correction Automatic V-Path correction for all Twin Crystal probes
Velocity Range 2000 to 9000 m/s in 1 m/s setps
Pulser Twin channel 70 V spike pulser
Receiver / Amplifier
10 MHz bandwidth, 120 dB range, automatic TCG
60 MHz measurement time-base
Data Logging
One-handed automatic logging of stable measurements.  Capacity for up to 5000 points including 640 point A-Scan data.
Data Output RS-485 single pair, half duplex for surface connection
Computer Software CygLink v4 allows remote logging and viewing of A-Scan graphs.  Survey and report generation to PDF file. Graphic analysis of data and statistical calculations.  Designed for Windows 7 and Windows 8.

Kit Content

Cygnus DIVE gage, 2 rechargeable batteries, fast charger, Multiple-Echo (through coating) probe (2.25 MHz 0.512" (13 mm)), user manual, spare membranes, membrane key, test block and surface and membrane couplant.

Applications

  • 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.

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