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Cygnus DIVE Underwater Tester
Key features of the Cygnus DIVE underwater ultrasonic thickness tester include:
- Multiple-Echo for accurate through-coat measurements, as specified by Classification Societies
- Echo-Echo and Single-Echo modes for heavily corroded metals with a thin or no coating
- Deep-Coat function to ignore coatings up to 20 mm thick
- A-scan display to assist with measurement verification
- Optional Data Logging feature with AutoLog – storing up to 5,000 measurements including A-scan data without pressing any button
- MSI™ to help verify stable and reliable readings
- Rechargeable lithium-ion battery giving up to 10 hours continuous measurement
- Optional CygLink software, Topside Repeater and HelmetView™.
Three Versatile Measuring Modes
- Multiple-Echo: Uses three error checked back wall echoes to provide the most reliable and accurate remaining thickness measurements, with no need to remove coatings (up to 20 mm thick).
- Single-Echo: Ideal for measuring uncoated metals with heavy front and/or back-wall corrosion. Also effective on a range of cast metals, plastics and composites.
- Echo-Echo: Works best for measuring heavily corroded metals through thin coatings of up to 1 mm thick, ideal for measuring painted metals with heavy back wall corrosion.
MSI™ (Measurement Stability Indicator)
Exclusive to Cygnus, MSI™ ensures stable and therefore reliable measurements are displayed in Echo‑Echo and Single-Echo modes.
CygLink Software
CygLink is a Windows® based application used to transfer and manage data logger records, A-scans, measurement comments and material velocity tables. The program can generate PDF reports and export to Excel. It also displays A‑scans, allowing for after-the-event analysis of logged measurements.
| Technical Specifications | |
| Display | 2.8” quarter VGA colour LCD (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. 10 hours continuous measurement |
| Low battery warning ‘alert’ message | |
| Measuring Modes | Multiple-Echo using 3 echoes to ignore coatings up to 20 mm (0.8 inch) thick. |
| Echo-Echo using 2 echoes to ignore coatings up 1 mm (0.04 inch) thick. | |
| Single-Echo using 1 echo | |
| Deep Coat | In Multiple-Echo mode, allows measurement to be made through thicker coatings of suitable materials of up to 20 mm (0.8 inch) thick |
| Accuracy | ±0.1 mm or 0.1% of thickness measurement, whichever is greatest, when calibrated in accordance with Cygnus Instruments calibration procedure |
| Probe Options | Single crystal probes and Twin crystal probes |
| Probe Cables | Double outer jacket in tough PU. Coloured yellow for easy locations underwater |
| Coiled for ease of use. Fischer S105 series connectors | |
| Measurement Range in Steel | 1 – 250 mm (0.039 – 10 inch) depending on selected probe and configuration, material and temperature |
| Measurement Resolution | Multiple-Echo with single crystal probes – 0.1 or 0.05 mm |
| Single-Echo and Echo-Echo with twin crystal probes – 0.1 or 0.01 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 | 2,000 to 9,000 m/s in 1 m/s steps |
| Pulser | Twin channel 70 V spike pulser |
| Receiver / Amplifier |
10 MHz bandwidth, 120 dB range, automatic TCG
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60 MHz measurement time-base
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| Data Logging (Optional) |
One-handed automatic logging of stable measurements. Capacity for up to 5,000 points including 640 point A-Scan data.
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| Data Output | RS-485 single pair, half duplex for surface connection |
| Standards | Designed for EN 15317 |
| Compliance | CE, UKCA, RoHS |
| Warranty | 3 years on gauge and 6 months on probe |
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