CYGNUS Dive

Description

The Cygnus DIVE is a wrist-mounted underwater ultrasonic thickness gauge for divers. Worn on the forearm, it leaves the diver a free hand during thickness surveys. It uses the Cygnus multiple echo technique, which measures remaining metal thickness through paint and other coatings and verifies each reading using three return echoes.

The measurement range in steel is 3–250 mm with the 2.25 MHz probe supplied, 2–150 mm with a 3.5 MHz probe and 1–50 mm with a 5.0 MHz probe. The Deep Coat function measures through coatings up to 20 mm thick. A 2.8-inch colour screen shows the readings and an A-scan graph, and a rechargeable lithium-ion battery gives up to 10 hours of operation.

The gauge is IP68 rated to 300 m, measures 105 × 110 × 35 mm and weighs 905 g complete. Options include data logging with DIVELink software, a Top Side Repeater that relays readings to the surface and can overlay them on video, a HelmetView display for Kirby Morgan helmets, and umbilical cables up to 500 m.

Technical Specification

Measurement range in steel

3–250 mm (2.25 MHz probe); 2–150 mm (3.5 MHz); 1–50 mm (5.0 MHz)

Accuracy

0.1 mm when calibrated to Cygnus Instruments procedures

Resolution

±0.05 mm high (<100 mm); ±0.1 mm low

Measurement technique

Multiple echo, error checked with 3 return echoes

Deep Coat

Measures through coatings up to 20 mm

Display

2.8" colour TFT with LED backlight, 320 × 240 pixels, A-scan

Battery

Rechargeable lithium-ion pack, 10 hours

Depth rating

IP68, 300 m continuous immersion in seawater

Operating temperature

−10–50 °C

Size

105 × 110 × 35 mm

Weight

905 g complete

Probe cable

Coiled double jacket, extends to 1 m, locking connector

Receiver

Automatic TCG, 1–10 MHz bandwidth, 10-bit digitiser 60 MSPS

Data storage

32 Mb flash, 5,000 measurement points (data logging version, optional)

Data output

RS-485 half duplex to DIVELink

Compliance

BS EN 15317:2007

Top Side Repeater

Surface display and video overlay (optional)

HelmetView display

For Kirby Morgan helmets (optional)

Umbilical cables

Custom lengths up to 500 m (optional)

Kit contents

DIVE gauge, 2 rechargeable batteries, fast charger, 2.25 MHz probe, user manual, spare membranes, membrane key, test block

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