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1. GENERAL
The DS-30 is a highly–advanced, precision Doppler Sonar which incorporates FURUNO’s long
established ultrasonic technology.
It provides accurate displays of ship’s speed over a wide range from dead slow to maximum.
Speeds are detected relative to the ground or water both fore-aft and athwarthship. This feature
allows precise docking of mammoth tankers to oil loading/unloading facilities, as well as safe
navigation in narrow channels or straits.
Features
1) High measuring accuracy of ± (0.2% + 0.01 mm/sec) or better for low longitudinal speed, even in
shallow waters with under keep clearance as little as 1 meter, enables close control of speed and
safe berthing and anchoring operations.
2) Ground tracking up to 200 m provides accurate ship’s ground speed in most coastal waters.
3) Single hull unit composition with employment of the rate-of-turn gyro economizes installation
and maintenance costs. (Most other doppler sonars use two hull units: one each for measuring
ship’s transverse speed at the fore and the stern.
4) Rate-of-turn gyro uses optical fibers instead of moving parts, providing high reliability.
5) Logically arranged presentations of information on the color LCD for instant recognition of
ship’s motion and speed together with under-keel clearance, current and wind conditions.
6) GPS navigator connection provides ship’s ground speed at all times.
7) Conforms to the following standards: IMO A.824(19), as amended by MSC.96(72), IMO
A.694(17), IEC 61023, IEC 60945 (3
rd
edition), IEC 61162-1 (2
nd
edition)