CYGNUS DIVE UNDERWATER GAUGE

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CYGNUS DIVE UNDERWATER GAUGE

WRIST-MOUNTABLE UNDERWATER THICKNESS GAUGE

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 Gauge 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 Instruments builds all of its equipment in the UK using only genuine and original parts and components – including Lemo® Connectors and Peli® Cases.

Features
Specifications
Kit content
Options
Probes
Features

  • 300 m depth rated
  • Wrist-mountable, giving the diver a free hand
  • A-Scan (selectable)
  • Data logging – stores 5,000 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.

Specifications

Display2.8” 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

BatterySingle 3.6V Li-ion 8.2 W battery

11 hours continuous measurement

Low battery warning ‘alert’ message

Measurement ModesMultiple-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 CoatIn 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
Probe CablesDouble outer jacket in tough PU.  Coloured yellow for easy locations underwater.  Coiled for ease of use.  Fischer S105 series connectors.
Measurement RangesMultiple-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 = 4.0 to 50 mm in steel

2.0 MHz = 6.0 to 50mm in steel

Single-Echo with Twin Crystal probes:

5.0 MHz = 2.0 to 100 mm in steel

2.0 MHz = 3.0 to 150 mm in steel

Measurement Resolution0.1 mm – Low resolution mode or measurement >99.95 mm

0.05 mm – High resolution mode and measurement <100.0 mm

0.01 mm – Single-Echo mode only and measurement <100.0 mm

Measurement Unitsmm or inches
Probe ZeroFully automatic probe zeroing for all probes types
V-Path CorrectionAutomatic V-Path correction for all Twin Crystal probes
Velocity Range2000 to 9000 m/s in 1 m/s setps
PulserTwin channel 70 V spike pulser
Receiver / Amplifier10 MHz bandwidth, 120 dB range, automatic TCG

60 MHz measurement time-base

Data LoggingOne-handed automatic logging of stable measurements.  Capacity for up to 5000 points including 640 point A-Scan data.
Data OutputRS-485 single pair, half duplex for surface connection
Computer SoftwareCygLink 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 Gauge Body and Wrist Strap
  • Ultrasonic Probe(s) with Coiled Cable
  • Two Rechargeable Batteries
  • Membrane Couplant, 25ml bottle
  • Battery Charger and Charger Base
  • AC Mains Lead for Battery Charger
  • Ultrasonic Couplant Gel (Blue), 100ml bottle
  • Test Block 15mm (or ½”) thick in Mil Steel
  • Spare Probe Membranes
  • Membrane Key
  • Silicone Grease, 50g tube
  • USB Flash Drive with Documentation
  • Calibration Certificate
  • Operating Manual

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 gauge 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.

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 software.

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


Download CYGNUS DIVE UNDERWATER GAUGE​ brochure


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CYGNUS FMD SYSTEM

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CYGNUS FMD SYSTEM

With over three decades of designing ultrasonic equipment for the offshore and underwater environment, Cygnus fully understands the requirements of the subsea inspection industry.

This entirely new Flooded Member Detector (FMD) combines intelligent, advanced software and electronics with a truly simple to use interface.

The FMD system comprises of three fundamental parts; the probe and probe handler, the subsea electronics unit and the reporting software

Overview
FMD Reporting software
Specifications
Options
Overview

EASY TO USE
The Cygnus FMD has an innovative probe handling solution which self aligns, ensuring correct contact with the member, even when approached from an angle.

The system also has a contact sensor which will not allow a test to be taken unless the probe is correctly aligned.

The system returns a simple DRY / FLOODED result to the reporting software with results logged at the surface.

COST EFFECTIVE
The Cygnus FMD System is owner operated and extremely easy to learn and understand.

Due to its simplicity and innovative fail safe design the FMD system can be used by a range of operators, with varying experience, without the need for external contractors

RUGGED
Available in high grade acetal or stainless steel for the harshest environments.

The FMD equipment is designed to the highest standards, supported by a three year warranty

RELIABLE
Cygnus is an ultrasonic specialist. Years of industry experience and design expertise combine to make this system the most advanced, effective and reliable Ultrasonic FMD System available.

  • The purpose-designed algorithm simultaneously uses
    – advanced signal processing
    – an advanced peak detection algorithm
    – low distortion / low noise data acquisition
    to ensure highest level of Probability of Detection (PoD) to eliminate false readings.
  • The system will only take a measurement when the contact sensor detects probe contact, ensuring reliable results every time. The reporting software will indicate at the surface should the probe lose contact during a test.
  • System Test Function ensures the reliability of the system before it is deployed.

VERSATILE
The same FMD system is both diver or ROV deployable. Being of a compact design the probe is able to get into to hard to reach areas, such as K nodes, where other inspection methods cannot. A range of versatile options to suit working depths and varying requirements are available.

FMD Reporting software

  • Used to perform system tests
  • Displays test results
  • Displays A-Scans for verification
  • Indicator shows RED if flooded and GREEN if dry
  • Logs results for offline analysis
  • Reports can be generated and exported to PDF and Excel​

Specifications

Probe0.5 MHz high power piezo composite probe – single element
Measuring Range200 – 2000 mm member diameter
Resolution1 mm
POWER 
Diver Communications PSU110-240 AC 50/60 Hz @ 1A (max)
ROV Power Supply12 to 24 volt D.C @ 60mA
COMMUNICATIONS 
DigitalRS232 & RS485
Baud Rate115,200
Date CaptureOn demand 3 shot and varying gain levels
Diver Data LinkRS485 half – duplex
ROV Date LinkRS232 full – duplex suitable for fibre multiplexers
PHYSICAL 
Acetal Electronics Body0.9 kg (95 mm (diameter) x 115 mm (height))
Stainless Steel Electronics Body4 kg (95 mm (diameter) x 115 mm (height))
Acetal Probe Handler2.5 kg (140 x 170 x 130 mm)
Stainless Steel Probe Handler4.7 kg (140 x 170 x 130 mm)
120m Umbilical Cable23 kg (340 x 450 x 555 mm)
350m Umbiblical Cable87 kg (450 x 600 x 930 mm)
50m Deck Cable13 kg (290 x 380 x 490 mm)
Depth Rating300 msw
Operation Temperature0°C to +75°C
Storage Temperature-40°C to 55°C

Options

Subsea Unit
– Tough Stainless Steel or
– Lightweight Acetal
Cable Protector
– Provides extra cable protection and an attachment point for divers
Self Aligning Probe Handler
– Self Aligning Probe Handler
– Tough Stainless Steel or
– Lightweight Acetal
Handle Options
– Diver: Stainless Steel D-Handle
– ROV: Fishtail or T-Bar
Communications PSU
– Provides power and communications to the diver
Umbilical Cable
– 120m length
– 350m length
System Test Tank
– Used to run a full system test of the FMD system


Download CYGNUS FMD SYSTEM brochure


Download Subsea Range​ brochure

CYGNUS MINI ROV MOUNTABLE

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CYGNUS MINI ROV MOUNTABLE

MULTIPLE ECHO ULTRASONIC THICKNESS GAUGE

The Cygnus Mini ROV Mountable thickness gauge has been specially designed to be mounted onto small observation ROVs with or without a manipulator facility. Built in conjunction with VideoRay, this mountable subsea thickness gauge will allow the operator to carry out an ultrasonic thickness measurement in areas that have previously been unfeasible using larger ROVs or divers. The multiple echo thickness gauge measures metal thickness and corrosion without removing protective coatings.

Dedicated software displays the time, date and thickness readings on the surface which can all be stored or logged. Alternatively, an optional Topside Repeater (TSR) is available which has the facility to display the thickness measurements remotely and overlay them on to a video signal. This allows the measurements to be superimposed on the ROV camera’s monitor screen.

The unit is pressure tested to 1,500 ft (500 m).

Please see examples of ROV ultrasonic thickness gauges using the Cygnus Mini ROV thickness gauge:

VideoRay ROV Ultrasonic Metal Thickness Gauge

AC-ROV Thickness Gauge

Deep Trekker DTG2 ROV thickness gauge

Cygnus Instruments builds all of its equipment in the UK using only genuine and original parts and components – including Lemo® Connectors and Peli® Cases.

Features
Specifications
Kit contents
Features

    • Designed specifically to mount onto small observation ROV’s.
    • Supplied with *CygLink software to display and log thickness measurements from the ROV on a computer at the surface which can be saved to a file and printed out.
    • CygLink has two data logging facilities: Quick Log for simple recording of thickness measurements and structured mode with four templates available – Single Point, Multi Point, Grid Point and Key Point.
    • Easy calibration at the surface via CygLink software or Top Side Repeater (TSR) unit.
    • Optional dedicated probe holder to allow measurements on curved or flat surfaces.
    • Only one twisted pair is required to transfer the data to the surface.

Specifications

MaterialsSound velocities between 1000 m/s and 9995 m/s
Measurement Range in Steel0.110″ – 9.995″ (3 mm – 250 mm) with 2.25 MHz probe
0.065″ – 6.000″ (2 mm – 150 mm) with 3.5 MHz probe
0.045″ – 4.000″ (1 mm – 50 mm) with 5.0 MHz probe
Accuracy0.005″ (0.1 mm) when calibrated in accordance with Cygnus Instruments calibration procedures
Resolution0.002″ (0.05 mm)
Power7.0 – 30 V dc @ 150 mA (max)
DisplayPC or Laptop with VGA (not included)
Size6.299″ x 2.441″ (160 mm x 62 mm)
Weight19.4 oz (550 g)
Operating Temp14°F to 122°F (-10°C to +50°C)
ApprovalsRINA Type Approved
TestingTested to 1,500 ft (500 m) depth
CommunicationsRS-422, Simplex Single Pair, 2400 Baud
ComplianceBritish Standard BS EN 15317:2013 (Group 1)
EnvironmentalRoHS, WEEE compliant

Kit contents

  • Cygnus MINI ROV Gauge Body
  • Nose Cone Torque Bar
  • Operation Manual & CygLink Software on USB Flash Drive
  • Bottle of Membrane Couplant
  • Carry Case
  • Test Lead
  • 9 Way D-Type Connector
  • Impulse Plug to Fly Leads
  • Impulse Blanking Plug
  • 10 x ‘B/D’ O Rings
  • 10 x ‘A’ O Rings
  • Silicone Grease
  • K3 RS-422/485 to RS-232 Converter
  • RS-232 to USB Converter
  • K3 Manual, Documents and Warranty Letter
  • Probe Assembly, including: Spare Membranes and Membrane Key; Sample Test Block.

Probes
Options
Probe handling solutions
Probes

Single crystal soft-faced compression13 mm – 2.25, 3.5 or 5 MHz

Options

CYGNUS TOPSIDE REPEATER

The Cygnus Topside Repeater (TSR) is available as an option and has the facility to display the thickness measurements remotely and overlay them on to a video signal. This allows the measurements to be superimposed on the ROV camera’s monitor screen.

Probe handling solutions

Cygnus G1 Observation, Inspection, Light Work Class ROV Probe Handler

The Cygnus G1 Probe Handler is designed for use on Observation, Inspection and Light-work class ROVs. Constructed from acetal it is both strong and lightweight it features an adjustable mounting bracket allowing optimum positioning of the UT probe. The UT probe is located in an articulated mount that allows up to 15 degrees of movement in both planes allowing automatic alignment of the probe face to the measurement surface making the ROV pilot’s job easier.

Cygnus S1 Probe Handler for ROV Ship Hull Inspection

Complementing the Cygnus range of ROV Mountable thickness gauges, the NEW Cygnus S1 Probe Handler is developed for use on Inspection and Medium sized ROVs carrying out ship hull inspections.

Cygnus W1 Work Class ROV Probe Handler

Complementing the Cygnus ROV Mountable thickness gauges, the Cygnus W1 Work Class ROV Probe Handler has been developed to offer an engineered probe-handling solution for Work Class ROV thickness gauging operations.


Download CYGNUS MINI ROV MOUNTABLE​​ brochure


Download Subsea Range​ brochure

CYGNUS ROV MOUNTABLE

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CYGNUS ROV MOUNTABLE

MULTIPLE ECHO ULTRASONIC THICKNESS GAUGE

Specifically designed for underwater remotely operated vehicles, Cygnus offers a dedicated ROV Mountable thickness gauge, depth rated to 2,000 m. This mountable measurement gauge again, benefits from the multiple-echo technology found in all our ultrasonic measuring devices. It is truly versatile and designed to measure metal thickness through coatings in the harshest operating conditions.

Dedicated software reveals the date, time and thickness readings on the surface which may be logged or stored. In addition, a Topside Repeater (TSR) is available providing the ability to present the thickness measurements remotely and overlay them on to a video signal. This permits the measurements to be superimposed on the ROV camera’s monitor screen.

Cygnus Instruments builds all of its equipment in the UK using only genuine and original parts and components – including Lemo® Connectors and Peli® Cases.

Features
Specifications
Kit contents
Features

  • ROV 2000m MK5 UTG Kit, depth rated to 2,000 meters.
  • Selectable Deep Coat mode for measuring through coatings up to 20 mm thick.
  • Supplied with CygLink software to display and log thickness measurements from the ROV on a computer at the surface which can be saved to a file and printed out.
  • CygLink has two data logging facilities: Quick Log for simple recording of thickness measurements and; Structured mode with four templates available – Single Point, Multi Point, Grid Point and Key Point.
  • The ROV gauge sends thickness measurement data to the surface via an RS-422 serial link, Cygnus can supply the RS-422 umbilical cable up to 1,200 m in length. For longer distances the ROV gauge can output data in RS-232 mode.
  • Fitted with a safety Pressure Relief Valve and Securing Eye.
  • Easy calibration at the surface via CygLink software or Topside Repeater (TSR) unit.
  • Removable end plate for full serviceability with access to the Option Switches, Fuse and Status LED.
  • Wet mateable ‘MC’ style underwater connectors.

Specifications

MaterialsSound velocities between 1000 m/s to 9995 m/s
Measurement Range in Steel3 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 (±0.004”) or 0.1% of thickness measurement, whichever is greatest, when calibrated in accordance with Cygnus Instruments calibration procedure
Resolution0.05 mm
Size88.90 mm x 205 mm (inc. fittings)
Weight0.975 kg
Operating Temp-10 °C to +50 °C
Testing3 km depth
CommunicationsRS-422 Simplex Single Pair or RS-232 TXD 2400 or 9600 Baud
ComplianceBritish Standard BS EN 15317:2013 (Group 1)
EnvironmentalRoHS, WEEE Compliant

Kit contents

  • ROV power and data cable with flying leads
  • Membrane couplant
  • ‘K3’ RS-422/485 to RS-232 converter
  • RS-232 to USB converter
  • ROV probe cable with heavy duty remote probe (5 m)
  • Cygnus ROV gauge
  • USB flash drive CygLink installation and operating manual in PDF format
  • ROV power and data test cable and connectors
  • Accessories in case: spare O-rings; spare membranes; membrane locking ring key; 15 mm test block; spare 1A fuses; 3mm allen key; silicone grease sachets.

Probes
Options
Probe handling solutions
Probes

For optimum performance of the ultrasonic thickness gauge it is essential to utilise the appropriate probe for the specific material being tested. Here below are the probe options available.

Single crystal soft-faced compression13 mm – 2.25, 3.5 or 5 MHz

Options

CYGNUS TOPSIDE REPEATER

The Cygnus Topside Repeater (TSR) is available as an option and has the facility to display the thickness measurements remotely and overlay them on to a video signal. This allows the measurements to be superimposed on the ROV camera’s monitor screen.

Probe handling solutions

Cygnus G1 Observation, Inspection, Light Work Class ROV Probe Handler

The Cygnus G1 Probe Handler is designed for use on Observation, Inspection and Light-work class ROVs. Constructed from acetal it is both strong and lightweight it features an adjustable mounting bracket allowing optimum positioning of the UT probe. The UT probe is located in an articulated mount that allows up to 15 degrees of movement in both planes allowing automatic alignment of the probe face to the measurement surface making the ROV pilot’s job easier.

Cygnus S1 Probe Handler for ROV Ship Hull Inspection

Complementing the Cygnus range of ROV Mountable thickness gauges, the NEW Cygnus S1 Probe Handler is developed for use on Inspection and Medium sized ROVs carrying out ship hull inspections.

Cygnus W1 Work Class ROV Probe Handler

Complementing the Cygnus ROV Mountable thickness gauges, the Cygnus W1 Work Class ROV Probe Handler has been developed to offer an engineered probe-handling solution for Work Class ROV thickness gauging operations.


Download CYGNUS ROV MOUNTABLE​ brochure


Download Subsea Range​ brochure

CYGNUS UNDERWATER

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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 maintenance and surveys 3 decades ago… and today it is still the industry standard.

The unit is depth rated to 300 meters (1,000 ft) and it provides an accurate metal thickness measurement through coatings up to 20 mm (0.787 in) thick using Deep Coat mode (upon request). The bright LED display ensures easy viewing even in poor visibility conditions.

The Cygnus Underwater thickness gauge is supplied ready to use as a complete kit with 2 rechargeable batteries in a protective carry case.

Cygnus Instruments builds all of its equipment in the UK using only genuine and original parts and components – including Lemo® Connectors and Peli® Cases.

Features
Specification
Kit contents​
Probes​
Options
Features

  • RINA approved (Certificate No. 2009DGPO787)
  • Auto Probe Recognition (APR)
  • Deep-Coat mode for measuring through coatings up to 20 mm (0.787 in) thick (upon request)
  • 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 (1,000 ft) 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.

Specification

MaterialsSound velocities between 2000 – 7000 m/s (0.059 – 0.31 in/microsec) – covers virtually all common engineering materials
Measurement Range in Steel3 – 250 mm (0.110 – 9.995 in) with 2.25 MHz probe
2  – 150 mm (0.065 – 6.000 in) with 3.5 MHz probe
1 – 50 mm (0.045 – 4.000 in) with 5.0 MHz probe
Accuracy0.1 mm (0.005 in) when calibrated in accordance with Cygnus Instruments calibration procedures
Resolution0.1 mm (0.005 in) or 0.05 mm (0.002 in) (selectable)
PowerNiMH rechargeable battery pack
Battery Life30 hours (continuously measuring)
DisplayLarge, bright LED display
Size235 x 75 mm (8 3/8 x 3 in)
Weight950 g (2.1 lbs) – with probe
860 g (30.3 oz) – with fixed head probe
Operating Temp-10°C to +50°C (14°F to 122°F)
Environmental ProtectionIPX8 continuous 300 m (984 ft) rating
ComplianceCE, British Standard BS EN 15317:2013 (Group 1)
EnvironmentalRoHS, WEEE compliant

Kit contents​

  • Cygnus Underwater gauge body
  • Lanyard and molykote and Tommy bar
  • Two rechargeable NiMH battery backs
  • Battery charger and leads
  • Probe for Cygnus Underwater , supplied as nosecone assembly with 1 m cable
    Membrane couplant
  • Accessories: spare O-rings; spare membranes; membrane locking ring key; 15 mm test block; torque (“Tommy”) bar; calibration jumper lead.

Probes​

Single Crystal Soft-Faced Compression6 mm – 5 MHz
 13 mm – 2.25, 3.5 or 5 MHz
 19 mm – 2.25 MHz

Options

TOPSIDE REPEATER OPTIONS

The Topside Repeater is used when the readings need to be verified on the surface. Umbilical cable length is specified by the customer up to a maximum of 1,000 m. There are three options available:

Option A: Palm held surface display repeater with large liquid crystal display in an IP65 sealed case.
Option B: Data logging and remote display Windows based *Cyglink Software. (*For more details, visit the CygLink Software page in PRODUCTS > THICKNESS GAUGING ACCESSORIES section).

Also available, the Cygnus DIVE wrist-mountable underwater thickness gauge as an alternative for diver use. For more information, visit Cygnus DIVE page and watch the Cygnus Instruments underwater ultrasonic thickness gauge video.


Download CYGNUS UNDERWATER​ brochure


Download Subsea Range​ brochure