Marine Speed and Distance Measuring Equipment (SDME)

1 DOPPLER Speed LOGDS-80 Marine Speed and Distance Measuring Equipment ( sdme ) C 9-52, Ashihara-cho, Nishinomiya, Japan Telephone: 0798-65-2111 Telefax: 0798-65-4200 Your Local Agent/Dealer A ll rights reserved. PUB. No. OME-72470 DS-80 (DAMI) FIRST EDITION : FEB. 2000 K : JUL. 9, 2001 Printed in Japan iSAFETY INSTRUCTIONSWARNINGELECTRICAL SHOCK HAZARDDo not open the qualified personnelshould work inside turn off the power at theswitchboard if water leaks into use of the Equipment can causefire or electrical shock. Contact a FURUNO agent for not disassemble or modify , electrical shock or serious injury turn off the power at theswitchboard if the Equipment is emittingsmoke or use of the Equipment can causefire or electrical shock.

2 Contact a FURUNO agent for heater away from heater can melt the Equipment 's powercord, which can cause fire or the proper rating is shown on the of a wrong fuse can result in damageto the not use the Equipment for other thanits intended use of the Equipment can resultin personal injury or Equipment LABELA warning label is attached to the Distributor, Transceiver and TerminalBox. Do not remove the a label is missing or illegible,contact a FURUNO agent or avoid electrical shock, do not remove cover. No user-serviceable parts : Warning Label (1)Type: 86-003-1011-0 Code No.: 100-236-230iiRECORD OF MODIFICATIONS IN THIS OPERATOR S MANUALPub (Prog. No.)Outline of changes inOperator s ManualPublicized for submission to typetest BSHApr/200003I-02J-02K(DS-800, DS-801,DS-810)Publicized for submission to typetest BSHJune/20006550100003I (DS-800)6550110003J (DS-801)6550120003K (DS-810) iii TABLE OF CONTENTSSPECIFICATIONS.

3 SP-1 1 SYSTEM CONFIGURATION .. 2 PRINCIPLE OF 3 REMARKS ON 4 1 OPERATION OF DISPLAY UNIT . 5 Control 5 Turning the Power 5 Adjusting Contrast, Panel 6 Selecting a 6 Main Menu 7 Distance Run Operation .. 7 System Setting .. 9 Demonstration Mode ..11 2 OPERATION OF OPTIONAL Equipment .. 12 Digital Indicator DS-830, Distance Indicator DS-840 ..12 3 MAINTENANCE, 14 Maintenance ..14 Troubleshooting ..15 Diagnostics, Checking Program Number ..16 4 DIGITAL INTERFACE (IEC 61162-1) .. 17 I/O Sentences ..17 Sentence 5 PARTS LOCATION AND PARTS 19 Parts Location ..19 Parts List ..21 CALIBRATION 25 MENU OVERVIEW .. 26 Declaration of conformity .. 27 SP - 1 SPECIFICATIONS OF THE DOPPLER Speed LOG DS-80 1. GENERAL (1) Speed Range Fore-Aft: to +40 knots through-the-water (2) Distance Run to 999, nautical miles through-the-water (3) Working Depth Water depth greater than 3 m beneath the keel.

4 (4) Working Frequency MHz (5) Speed Accuracy or knots whichever is the greater (6) Distance Accuracy or 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 (+ kt max.) Aft: d**.* knots ( 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 ) Input: 1 port; IEC 61162 (NMEA 0183 Ver ) (2) Analog Signal Speed signal for Analog display: 2 port mA to 10 mA/ -10 kt to +30 kt Analog current output: 1 port 4 mA to 20 mA/ -10 kt to 30 kt Analog voltage output: 1 port V to 10 V/ -10 kt to 30 kt (3) Distance run output 2 ports; Contact closure each nm, forward Speed , 30 VDC: A (4) System Check signal 1 port, 30 VDC: A, default: closed SP - 2 4.

5 POWER SUPPLY (1) System Source 100/110/115/200/220/230 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 of 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 (light gray), Panel: (gray) (2) Distribution Box Munsell (light gray) (3) Transceiver Unit Munsell (light gray) (4) Terminal Box Munsell (light gray) (5) Analog Display Munsell (light gray) 7. COMPASS SAFE Distance (1) Display Unit/Digital Indicator/Digital Distance Indicator Standard: m, Steering: m (2) Transceiver Unit Standard: m, Steering: m (3) Distribution Box Standard: m, Steering: m (4) Terminal Box Standard: m, Steering: m SAFETY PRECAUTION - There is no unit giving rise to a dose rate > mrem/h at 50 mm.

6 - 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. (19). 1 FOREWORDF orewordThank you for purchasing the FURUNODS-80 Doppler Speed Log. We areconfident you will discover why FURUNOhas become synonymous with quality in the design and manufacture ofmarine electronics Equipment for half acentury, FURUNO Electric Company hasgained an unrivaled reputation as a worldleader in the industry. This is the result ofour technical excellence as well as ourworldwide distribution and service carefully read and follow the safetyinformation and operating and maintenanceinstructions set forth in this manual beforeattempting to operate the Equipment andconduct any maintenance. Your Dopplerspeed log will perform to the utmost of itsability only if it is operated and maintained inaccordance with the correct Equipment is designed, produced anddocumented by FURUNO Electric Co.

7 , Ltd.,complying with ISO 9001 standards ascertified by the Lloyd s Register of QualityAssurance FURUNO DS-80 displays ship s speedrelative to water, using the Dopplerprinciple; ship s Speed is measured bydetecting the Doppler shift frequency fromthe signal returned from the output is interfaced with ARPA, AIS,and other shipborne Equipment in IEC61162-1 main features of the DS-80 are Simple operation. In most cases all that isrequired to display ship s Speed is to turnon the Equipment . Pair-beam system effectively reduceserror caused by pitching. The transducerassembly symmetrically emits two sonicbeams, one fore and the other aft. Byaveraging the Doppler shift in bothdirections accurate Speed data isavailable under rough sea conditions. Speed and Distance information on theadjustable-contrast LCD display. Analog display, digital Indicator and digitaldistance indicator display optionallyavailable.

8 Complies with IMO Res. (19) andIEC 61023: CONFIGURATIONTRANSDUCERDS-820 DISPLAY UNITDS-800 IEC 61162-1 InputPower ON SW SignalDistance Run SignalIEC 61162-1 OutputDIGITAL INDICATOR DS-830 Distance INDICATOR DS-840: STANDARD SUPPLY: OPTIONAL SUPPLYDISTRIBUTION BOXDS-801 TRANSCEIVER UNIT DS-810 DIMMER MF-22L-1/MF-22L-2 TERMINAL BOXDS-802 TERMINAL BOXDS-802 DIMMER MF22L-1/MF22-2 SHIP'S MAINS115/230 VACRANGE SWITCH BOXDS-389 DIMMER MF-22L-1/MF-22-2 ANALOG DISPLAY UNIT MF-22A-1115/230 VACJUNCTION BOXCI-630: LOCAL SUPPLY3 PRINCIPLE OF OPERATIONThe Doppler Speed log measures ship'sspeed by using the Doppler Effect, which isobserved as a frequency shift resulting fromrelative motion between a transmitter andreceiver or reflector of acoustic or electro-magnetic energy. A common example of theDoppler Effect is a train. When a train isapproaching, the whistle has a higher pitchthan normal.

9 You can hear the change inpitch as the train DS-80 has a pair-beam, one directed inthe fore direction and the other in the aftdirection, which emits ultrasonic waves atan angle of to the waterline towards ship sfore and aft directions. The frequency of thereceived signal is then compared with thatof the transmitted frequency to measuredoppler shift to calculate ship s relative motion causes the Doppler shiftand the ultrasonic waves reflected at thewatermass (plankton or any underwaterobjects) are received at the frequency of fr =fo + fd where fd is the number of frequencyshifts counted at the receiver circuit. Tocalculate ship s Speed , the following formulais = fd/fo c/2sin c: Underwater velocityNote that the sound velocity in waterchanges with water temperature and waterpressure but the DS-80 readout isautomatically compensated for change byusing a temperature fofr = fo + fdWATERMASSSEASURFACE4 REMARKS ON USAGER emarks on UsageThe DS-80 measures ship s Speed bydetecting the Doppler shift frequency of theecho reflected by a watermass (water layercontaining plankton and other micro-organisms) located within the measuringarea, which is usually about 2 m.

10 In someinstances, however, no signal is returnedbecause of too few plankton in the sensingdepths. This phenomenon can occur inparticular areas in particular seasons. Theprobable cause is the plankton are lying indeep water because an ice-melted coldwater mass covers the sea surface. Similarcases may also occur in a freshwater these circumstances the DS-80 willnot show the correct ship s Affecting theAccuracy(with ref to IMO )The Doppler Speed log DS-80 is designed forreliable and accurate performance throughFURUNO s long experience and advancedtechnology. It operates on the best choice ofsystem frequency and power output. As far asthe sonic energy is used, the performance(accuracy) may be reduced or even lostunder: rough weather (may be sea state 6 orseverer) improper location of sensor, , too closeto the propeller, thrusters, drain tubes, echosounder transducer depth under the keel if less than 3 mThe accuracy will not be affected by: - water temperature (sound velocity) salinity pitch/roll 10 Beware of Transducer LocationThe transducer may be damaged if it hitsthe dry dock blocks.