Furuno DOPPLER SPEED LOG DS-80 User Manual

 

Thank you for purchasing the FURUNO 

DS-80 Doppler Speed Log. We are 

confident you will discover why FURUNO 

has become synonymous with quality and 

reliability. 

Dedicated in the design and manufacture of 

marine electronics equipment for half a 

century, FURUNO Electric Company has 

gained an unrivaled reputation as a world 

leader in the industry. This is the result of 

our technical excellence as well as our 

worldwide distribution and service network. 

Please carefully read and follow the safety 

information and operating and maintenance 

instructions set forth in this manual before 

attempting to operate the equipment and 

conduct any maintenance. Your Doppler 

speed log will perform to the utmost of its 

ability only if it is operated and maintained 

in accordance with the correct procedures. 

This equipment is designed, produced and 

documented by FURUNO Electric Co., Ltd., 

complying with ISO 9001 standards as 

certified by the Lloyd’s Register of Quality 

Assurance System. 

The FURUNO DS-80 displays ship’s speed 

relative to water, using the Doppler 

principle; ship’s speed is measured by 

detecting the Doppler shift frequency from 

the signal returned from the watermass. 

The output is interfaced with ARPA, AIS, 

and other shipborne equipment in IEC 

61162-1 format. 

The main features of the DS-80 are 

• 

Simple operation. In most cases all that 

is required to display ship’s speed is to 

turn on the equipment. 

• 

Pair-beam system effectively reduces 

error caused by pitching. The transducer 

assembly symmetrically emits two sonic 

beams, one fore and the other aft. By 

averaging the Doppler shift in both 

directions accurate speed data is 

available under rough sea conditions. 

• 

Speed and distance information on the 

adjustable-contrast LCD display.   

• 

Analog display, digital Indicator and 

digital distance indicator display 

optionally available. 

• 

Conforms to the following standards: IMO 

A.824(19), as amended by MSC.97(72), 

IMO A.694(17), IEC 61023, IEC 60945 

(3

rd

 edition), IEC 61162-1 (2

nd

 edition)..