Tritech Super SeaKing - Mechanical Scanning Sonar (Work-Class ROV)

Description

The SeaKing sonar is of modular transducer design and a longer-life slip ring assembly to the sonar to minimises the consequences of operational damage and improves on the SeaKing sonar’s reliability.
The Super SeaKing Sonar is the industry-standard obstacle avoidance sonar for larger ROVs and is so popular it can be found fitted to work-class ROV fleets around the world.
The Super SeaKing DST Sonar hosts two mechanically scanned imaging sonars in a single subsea pressure housing: a 325 kHz CHIRP sonar with a true operational range of up to 300 metres for long range target recognition and a 650 kHz CHIRP sonar for ultra-high definition images, other frequency options are available on request.
Tritech’s SeaKing range of mechanical imaging sonars comprises the SeaKing Hammerhead, Super SeaKing, Super SeaPrince and Micron sonars. All products in the SeaKing family (or third-party products within the ARCNET communications link), can be run simultaneously, using the same processor and display; such as Tritech’s Surface Control Unit (SCU) or a customer supplied PC or laptop.

Technical information

Computer

High frequency:
Operating frequency1: CHIRP centred on 650kHz
Beamwidth: 40° vertical, 1.5° horizontal
Pulse length: 200μs
Maximum range: 100m

Low frequency:
Operating frequency1: CHIRP centred on 325kHz
Beamwidth: 20° vertical, 3.0° horizontal
Pulse length: 400μs
Maximum range: 300m
Minimum range: 0.4m
Range resolution: approximately 15mm (minimum)
Mechanical resolution: 0.45°, 0.9°, 1.8°, 3.6°
Source level: 210dB re 1μPa at 1m
Scanned sector: Variable up to 360°
Continuous 360° scan: Yes
Sector offset mode: Yes

Electrical and communications
Power requirement: 20 to 72V DC at 12W2
Protocols: ARCNET, RS232, RS485
Rate: ARCNET: 156kbit·s-1 (maximum)
RS232 & RS485: 115.2kBd (maximum)
ARCNET line driver: 1500m at 156kbit·s-1
2500m at 78kbit·s-1
Connector options: Tritech 6-pin (standard). Others available on request

Physical specification
Depth rating: 4000m standard 6800m optional (Seacon connector)
Weight in air: 3kg (aluminium)
Weight in water: 1.4kg (aluminium)
Temperature ratings: Operating: -10 to 35°CStorage: -20 to 50°C
Materials: Anodised aluminium alloy (Titanium alloy 6AL 4V optional)