Furuno DS-80 User Manual

DOPPLER SPEED LOG

Marine Speed and Distance Measuring Equipment (SDME)

DS-80

9-52 Ashihara-cho,9-52 Ashihara-cho,

*00080889601**00080889601*

*OME72470M10**OME72470M10*

Nishinomiya, JapanNishinomiya, Japan

Telephone :Telephone : 0798-65-21110798-65-2111 Telefax :Telefax : 0798-65-42000798-65-4200

ll rights reserved.

PUB.No.PUB.No. OME-72470OME-72470

Printed in JapanPrinted in Japan

Your Local Agent/DealerYour Local Agent/Dealer

IRST EDITION :

IRST EDITION : FEB.FEB. 20002000

M1M1 :: FEB.FEB. 12,200312,2003

(( DAMIDAMI ))

DS-80DS-80

* 0 0 0 8 0 8 8 9 6 0 1 ** 0 0 0 8 0 8 8 9 6 0 1 *

*OME72470M10**OME72470M10*

* O M E 7 2 4 7 0 M 1 ** O M E 7 2 4 7 0 M 1 *

SAFETY INSTRUCTIONS

WARNING

ELECTRICAL SHOCK HAZARD

Do not open the equipment.

Only qualified personnel should work inside the equipment.

Immediately turn off the power at the switchboard if water leaks into the equipment or an object is dropped into the equipment.

Continued use of the equipment can cause fire or electrical shock. Contact a FURUNO agent for service.

Do not place liquid-filled containers on the top of the equipment.

Fire or electrical shock can result if the liquid spills into the equipment.

Do not disassemble or modify the equipment.

CAUTION

Do not use the equipment for other than its intended purpose.

Improper use of the equipment can result in personal injury or equipment damage.

Turn off the equipment immediately if you feel it is abnormal.

Turn off the power from the switchboard if the equipment is emitting strange noises or becomes excessively hot. Contact your dealer for advice.

The useable ambient temperature range is 15

C to 55°C.

Do not use the equipment out of the above temperature range.

Do not place objects around the equipment.

Overheating may result.

Fire, electrical shock or serious injury can result.

Keep the equipment away from rain and water splash.

Fire or electrical shock can result if the rain or water gets into the equipment.

Do not operate the equipment with wet hands.

Electrical shock can result.

Keep heater away from equipment.

A heater can melt the equipment's power cord, which can cause fire or electrical shock.

Use the proper fuse.

Fuse rating is shown on the equipment. Use of a wrong fuse can result in damage to the equipment.

Do not power the equipment when the transducer is in air.

The transducer may become damaged.

Handle all units carefully.

Damage can lead to corrosion.

Do not use chemical cleaners such as alcohol, acetone and benzine to clean the equipment.

Chemical cleaners can remove paint and markings. Use only a soft, dry cloth. For stubborn dirt, use a soft cloth moistened with water-diluted mild detergent.

When dry docked remove marine life from the transducer.

Remove marine life to maintain good sensitivity.

Do not paint the transducer face. Further, handle the transducer with care.

Paint will affect equipment performance.

WARNING LABEL A warning label is attached to the Distributor, Transceiver and Terminal Box. Do not remove the labels. If a label is missing or is illegible, contact a FURUNO dealer or agent about replacement.

WARNING

To avoid electrical shock, do not remove cover. No user-serviceable parts inside.

Name: Warning Label (1) Type: 86-003-1011-0 Code No.: 100-236-230

RECORD OF MODIFICATIONS IN THIS OPERATOR’S MANUAL

Pub No. Software (Prog. No.)

Publicized for submission to type test BSH Apr/2000 Publicized for submission to type test BSH June/2000

03I-02J-02K (DS-800, DS-801, DS-810) 6550100003I (DS-800) 6550110003J (DS-801) 6550120003K

(DS-810) Modified to conform to IEC 61162-1 Edition 2 2002/4

DS-800: 6550100004

DS-801: 6550110003

DS-810: 6550120003

Outline of changes in Operator’s Manual

SPECIFICATIONS .......................SP-1

FOREWORD...................................... 1

SYSTEM CONFIGURATION............. 2

PRINCIPLE OF OPERATION............ 3

REMARKS ON USAGE..................... 4

1 OPERATION OF DISPLAY UNIT . 5

1.1 Controls........................................... 5

1.2 Turning the Power On/Off................ 5

1.3 Adjusting Contrast, Panel Dimmer... 6

1.4 Selecting a Display.......................... 6

1.5 Main Menu Operation...................... 7

1.6 Distance Run Operation.................. 7

1.7 System Setting ................................ 9

1.8 Demonstration Mode...................... 11

2 OPERATION OF OPTIONAL

EQUIPMENT ..............................12

2.1 Digital Indicator DS-830, Distance

Indicator DS-840............................12

3 MAINTENANCE,

TROUBLESHOOTING................14

3.1 Maintenance.................................. 14

3.2 Troubleshooting ............................. 15

3.3 Diagnostics, Checking

Program Number ...........................16

4 DIGITAL INTERFACE

(IEC 61162-1 Edition 2)..............17

4.1 I/O Sentences ................................ 17

4.2 Sentence Description..................... 20

5 PARTS LOCATION AND

PARTS LIST................................23

Parts Location......................................23

Parts List..............................................25

CALIBRATION SHEET....................29

MENU OVERVIEW..........................30

INDEX..................................... Index-1

Declaration of conformity

iii

This page is intentionally left blank .

SPECIFICATIONS OF THE DOPPLER SPEED LOG

DS-80

1. GENERAL (1) Speed Range Fore-Aft: -10.0 to +40 knots through-the-water (2) Distance Run 0.00 to 999,999.99 nautical miles through-the-water (3) Working Depth Water depth greater than 3 m beneath the keel. (4) Worki ng Frequency 1 .0 MHz (5) Speed Accuracy 1.0% or 0.1 knots whichever is the greater (6) Distance Accuracy 1.0% or 0.1 nm whichever is the greater Note : Accuracy is subject to shallow water effects, to the effect of wind , current and tide, and

sensor location. Any ultrasonic equipment having the same frequency may interfere with speed measurement. The Doppler Log transducer should be installed apart from the transducers of such kind of equipment.

2. DISPLAY UNIT (1) Display Character size 15 or 21 mm H on monochrome LCD (2) Indication

Ship’s speed Fore: c**.* knots (+40.0 kt ma x.) Aft: d**.* knots (-10.0 kt max.) Distance run ******.** nm

(3) Other Function Diagnostic check

3. DIGITAL INTERFACE (1) Serial Signal

Output: 2 ports; VBW, VLW in IEC 61162-1 (NMEA 0183 Ver 2.0) Input: 1 port; IEC 61162 (NMEA 0183 Ver 2.0)

(2) Analog Signal Speed signal for Analog display: 2 port

-3.3 mA to 10 mA/ -10 kt to +30 kt Analog curr e nt ou tp ut: 1 por t 4 mA to 20 mA/ -10 kt to 30 kt Analog voltage output: 1 port

-3.3 V to 10 V/ -10 kt to 30 kt

(3) Distance run output 2 ports; Contact closure each 0.005 nm, forward speed,

30 VDC: 0.4 A

(4) System Check signal 1 port, 30 VDC: 0.2 A, default: closed

SP - 1

4. POWER SUPPLY (1) System Sourc e 100/110 /1 15/200/220/ 23 0 VAC : 1.5 / 0. 7 A max ., 1 phase, 50-60 Hz

5. ENVIRONMENTAL CONDITION (IEC 60945) (1) Ambient Temperature -15°C to +55°C (units for protected area)

Analog display: 0°C to +50°C (2) Relative Humidity 95% at 40°C (3) Vibration IEC 60945 adopted (4) Category o f Equipment

Display Unit/Distance indicator/Transceiver Unit:

For protected area

Transducer: For submerged use, 600 kPa x 12 h

Distributor/Terminal box: For protected area

6. COATING COLOR (1) Display Unit Cover: Munsell 2.5GY5/1.5 (light gray), Panel: N3.0 (gray) (2) Distribution Box Munsell 2.5GY5/1.5 (light gray) (3) Transceiver Unit Munsell 2.5GY5/1.5 (light gray) (4) Terminal Box Munsell 2.5GY5/1.5 (light gray) (5) Analog Display Munsell 2.5GY5/1.5 (light gray)

7. COMPASS SAFE DISTANCE (1) Display Unit/Digital Indicator/Digital Distance Indicator

Stan dard: 0.50 m, St eering: 0.40 m (2) Transceiver Unit Standard: 2.05 m, Steering: 1.40 m (3) Distribution Box Standard: 3.1 0 m, Steering: 2.10 m (4) Terminal Box Standard: 0.6 5 m, Steering: 0.45 m

SAFETY PREC AUTION

- There is no unit gi vi n g ris e to a dose rate > 0.5 mrem/h at 50 mm.

- There is no harmful radiation from the screen.

- All units of this equipment comply with EMC requirements in IEC 60945, as required by IMO

Res. A.813 (19).

SP - 2

FOREWORD

Foreword

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 Electr ic 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 safet y information and operating and maintenance instructions set forth in this manual bef ore 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.

Features

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 f r om the signal returned from the watermass.

The output is interfaced with ARPA, AIS, and other shipborne equipm ent 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

edition), IEC 61162-1 (2nd edition)..

TERMINAL BOX

DS-802

SYSTEM CONFIGURATION

DISPLAY UNIT DS-800

DIMMER MF-22L-1/MF-22L-2

IEC 61162-1 Input

DISTRIBUTION BOX

JUNCTION BOX

CI-630

TRANSCEIVER

UNIT DS-810

TRANSDUCER

DS-801

RANGE SWITCH BOX

DS-389

DS-820

DIMMER MF22L-1/MF22-2

TERMINAL BOX

DS-802

DIMMER MF-22L-1/MF-22-2

ANALOG DISPLAY UNIT MF-22A-1

SHIP'S MAINS 115/230 V AC

Power ON SW Signal Distance Run Signal IEC 61162-1 Output

DIGITAL INDICATOR DS-830

DISTANCE INDICATOR DS-840

115/230 V AC

: STANDARD SUPPLY : OPTIONAL SUPPLY

: LOCAL SUPPLY

PRINCIPLE OF OPERATION

The Doppler speed log measures ship's speed by using the Doppler Effect, which is observed as a frequency shift resulting from relative motion between a transmitter and receiver or reflector of acoustic or electromagnetic energy . A common example of the Doppler Effect is a train. When a train is approaching, the whistle has a higher pit ch than normal. You can hear the change in pitch as the train passes.

The DS-80 has a pair-beam, one directed in the fore direction and the other in the aft direction, which emits ultrasonic waves at

an angle of θ to the waterline towards ship’s fore and aft directions. The frequency of the received signal is then compared with that of the transmitted frequency to measure doppler shift to calculate ship’s speed.

The relative motion causes the Doppler shift and the ultrasonic waves reflected at t he watermass (plankton or any underwater

objects) are received at the frequency of f fo + fd where fd is the number of frequency shifts counted at the receiver circuit. To

calculate ship’s speed, the following formula is used.

V = fd/fo • c/2sinθ c: Underwater velocity

Note that the sound velocity in water changes with water temperature and water pressure but the DS-80 readout is automatically compensated for change by using a temperature sensor.

WATERMASS

fr = fo + f

SEA SURFACE

REMARKS ON USAGE

Remarks on Usage

The DS-80 measures ship’s speed by detecting the Doppler shift f r equency of the echo reflected by a watermass (water layer containing plankton and other microorganisms) located within the measuring area, which is usually about 2 m. In some instances, however, no signal is returned because of too few plankton in the sensing depths. This phenomenon can occur in particular areas in particular seasons. The probable cause is the plankton are lying in deep water because an ice-melted cold water mass covers the sea surface. Similar cases may also occur in a freshwater lake. Under these circumstances the DS-80 will not show the correct ship’s speed.

Conditions Affecting the Accuracy

(with ref to IMO A.824/3.3) The Doppler speed log DS-80 is designed for reliable and accurate performance through

The accuracy will not be affected by:

- water temperature (sound velocity)

•

salinity

•

pitch/roll ±10°

•

Beware of Transducer Location

The transducer may be damaged if it hits the dry dock blocks. Take the following measures to prevent damage to the transducer.

1. Before delivering the ship, draw up a suitable docking plan taking into account the dimensions and location of the transducer. Store the plans onboard the ship.

2. Place the dry dock blocks according to the plan.

3. Have a diver check the position between the transducer and the blocks before removing the water. Confirm that the transducer will not touch the blocks.

FURUNO’s long experience and advanced technology. It operates on the best choice of system frequency and power output. As far as the sonic energy is used, the performance (accuracy) may be reduced or even lost under:

rough weather (may be sea state 6 or

•

severer)

improper location of sensor, e.g., too close

•

to the propeller, thrusters, drain tubes, echo sounder transducer

depth under the keel if less than 3 m

•

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