Furuno DS-50 Operator's Manual
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Furuno DS-50 Operator's Manual

Furuno DS-50 Operator's Manual

Doppler speedlog
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OPERATOR'S MANUAL
DOPPLER SPEEDLOG
DS-50
Model
www.furuno.com

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Summary of Contents for Furuno DS-50

  • Page 1 OPERATOR'S MANUAL DOPPLER SPEEDLOG DS-50 Model www.furuno.com...
  • Page 2 ・FURUNO Authorized Distributor/Dealer 9-52 Ashihara-cho, Nishinomiya, 662-8580, JAPAN A : APR 1996 Printed in Japan All rights reserved. P2 : FEB . 01, 2019 Pub. No. OME-72410-P2 ( ETMI ) DS-50 0 0 0 8 0 7 5 6 8 1 3...
  • Page 3 (http://www.eiae.org/) for the correct method of disposal. How to discard a used battery Some FURUNO products have a battery(ies). To see if your product has a battery(ies), see the chapter on Maintenance. Follow the instructions below if a battery(ies) is used.
  • Page 4 Contact your dealer for advice. Continued use of the equipment can cause fire or electrical shock. Contact a FURUNO The useable ambient temperature range agent for service. is 15°C 55°C.
  • Page 5 WARNING LABEL A warning label is attached to the units shown right. Do not remove the labels. If a label is missing or is illegible, contacta FURUNO dealer or agent about replacement. MAIN DISPLAY UNIT Warning DS-500 Name: Warning Label (1)

  • Page 6: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION ........................ 1 SPECIFICATIONS ......................2 SYSTEM CONFIGURATION ..................5 OPERATION ........................6 Controls and Indications on the Main Display Unit ............6 Turning on the Power, Adjusting Panel Dimmer .............. 8 Selecting Speed Tracking Mode ..................9 Selecting Unit of Speed Measurement................

  • Page 7: Introduction

    The FURUNO DS-50 is a highly advanced, precision Doppler Speed Log incorporating FURUNO's advanced computer technology. The DS-50 provides accurate display of speed over a wide range from dead slow to 40 kn Speeds are detected relative to ground or water both fore/aft and athwart ship.

  • Page 8: Specifications

    SPECIFICATIONS General Specifications 1. Ultrasonic frequency 440 kHz 2. Number of beams 3 beams for dual-axis speed indication 3. Measuring range and accuracy Ship’s speed Fore/aft: -10.0 to +40.0kn Port-Starboard: -9.9 to +9.9kn Working depth Ground tracking: 1 to 200 m beneath the keel Water tracking: 3 to 25 m below hull bottom.
  • Page 9 Specifications of DS-350/351 Digital Display (option) 1. Display device DS-350: LCD, DS-351: LED 2. Indication Speed Fore/Starboard: Unit Port/Starboard: . Direction (Fore/Aft), (Port/Starboard) Mode Ground or Water tracking Depth (clearance) 3. Other features Dimmer controls, Mode selector, Unit of speed selector 4.
  • Page 10 Specifications of DS-381SeriesAnalogDisplay (option) 1. Indication system Dual range system φ200 mm 2. Panel dimensions 3. Power consumption 5 VA approx. Specifications of DS-382SeriesAnalogDisplay (option) 1. Indication system Dual range system φ200 mm 2. Panel dimensions 3. Power consumption 5 VA approx. Specifications of DS-501 Control Box (option) 1.

  • Page 11: System Configuration

    SYSTEM CONFIGURATION MAIN DISPLAY UNIT DS-500 CONTROL BOX DS-501 (option) DIGITAL DISPLAY POWER cable SIGNAL DS-350/351 (option) cable ANALOG INDICATOR RANGE SWITCH BOX DS-381/382 DS-389, HF-22A MF-22A PROCESSOR UNIT DS-511/510 SHIP’S MAINS 115/230 VAC, DISTRIBUTION BOX DS-370 (option) JUNCTION BOX DS-360 (option) DISTANCE RUN INDICATOR DIGITAL DISPLAY...

  • Page 12: Operation

    OPERATION Controls and Indications on the Main Display Unit Port or starboard speed Port and starboard direction indicators DS-50 DOPPLER SONAR Fore and aft Fore or aft direction indicators speed Tracking mode indicator Test mode indicator Ground Unit of speed (knot or...
  • Page 13 Control description Main controls MODE selector Selects tracking mode among ground, water and automatic. Each time the key is pressed the tracking mode changes in the sequence of ground, water and automatic. Current tracking mode is denoted by the tracking mode lamps. Distance/Keel Displays distance run or depth below keel at each pressing.

  • Page 14: Turning On The Power, Adjusting Panel Dimmer

    Press the [POWER] switch to turn on the power. The equipment is tested in the sequence below: 1) Communications test between main display unit and the processor unit is conducted. Three zeroes blink about 30 s. DS-50 DOPPLER SONAR Zeroes blink for about 30 seconds.

  • Page 15: Selecting Speed Tracking Mode

    Selecting Speed Tracking Mode Press the [MODE] selector to select speed tracking mode among water, ground or automatic. Select the mode considering depth and speed. "G", "W" or "A" lights to show mode selected. G:Measures and displays a speed relative to ground. The depth range usable for this mode is 1to 200 meters below the keel.

  • Page 16: Setting Distance Run

    Setting Distance Run The distance run indication is backed up with an internal battery when the power is off. To reset or change the distance run, do the following: 1. Open the lid at the bottom of the display unit and press the [SET] key. The display should look like the illustration below, with the highest digit of distance run blinking.

  • Page 17: System Settings

    System Settings The system settings do not require frequent adjustment. The table below shows setting range and default setting for each parameter. Item Setting Range Default Setting Ground speed offset -12.8 to+12.7%, 0.1% steps Water speed offset -12.8 to +12.7%, 0.1% steps Transducer installation offset -12.8 to +12.7°, 0.1°...
  • Page 18 Turn off the main display unit. Turn on the power while pressing and holding down the [Distance/Keel Clearance] selector. "1" indicates system setting no. 1 at the center of the display. FURUNO FURUNO DS-50 DOPPLER SONAR "1" appears. istance Keel Clearance...

  • Page 19: Control Box (Option) Operation

    CONTROL BOX (OPTION) OPERATION The DS-501 Control Box provides remote operation of the main display unit. The [MODE], [Distance/ Keel Clearance] and [DIMMER] controls function the same as those found on the main display unit.

  • Page 20: Maintenance & Troubleshooting

    SEATENDER 20 (no other paint allowed) anticorrosion paint. Note 1: Do not mix SEATENDER 20 with SEA GRANDPRIX 660HS, or apply one over the other. Note 2: It is possible to remove SEATENDER 20 and replace the coating with SEA GRANDPRIX 660HS.

  • Page 21: Troubleshooting

    Troubleshooting Below are simple troubleshooting procedures the operator can follow to restore normal operation. Power cannot be turned on. Try adjusting brilliance (power may be on but brilliance is too low). Check the power cable for damage. Check that the power connector is firmly fastened. Check if fuse(s) on the processor unit have blown.
  • Page 22 LEDs, ROM, RAM, EEPROM and buzzer and displays the program version number. This is done continuously. 2. To escape from the diagnostic program, turn off the power. Error display FURUNO FURUNO DS-50 DOPPLER SONAR Main display unit error indications 1: ROM error 2: RAM error...

  • Page 23: Error Displays

    Error Displays FURUNO FURUNO DS-50 DOPPLER SONAR Main display unit error indications 1: ROM error 2: RAM error 3: EEPROM error istance Keel Clearance DIMMER Distance MODE Keel Clearance 3. MIF Board Processor unit error error indications 1: MCP Board...

  • Page 24: Principle Of Doppler Speed Log

    "fo + fd" and "fo - fd" by the transducer. In the processor unit of the DS-50, difference of "fo + fd" and "fo - fd" are computed to extract only the Doppler shift factor "fd".

  • Page 25: Digital Interface (Iec 61162-1 Edition 2)

    DIGITAL INTERFACE (IEC 61162-1 EDITION 2) Output sentences of channel 1, 2 (NMEA/CIF 1, NMEA/CIF 2) VBW, VTG, VLW, VHW. (VTG is not output when the bottom echo has not been acquired. Heading data in VTG and VHW is "null.") Transmission interval 2 s for any sentence Data transmission...
  • Page 26 Schematic diagram Data sentences VBW - Dual ground/water speed $--VBW,x.x,x.x,A,x.x,x.x,A,x.x,A,x.x,A*hh<CR><LF> | +--- 11 | +----- 10 | | +-------- 9 | +----------- 8 | | +-------------- 7 | +----------------- 6 +-------------------- 5 | | +------------------------ 4 | +--------------------------- 3 | +------------------------------ 2 +---------------------------------- 1 1.
  • Page 27 VHW - Water speed and heading $--VHW,x.x,T,x.x,M,x.x,N,x.x,K*hh<CR><LF> | | | | | +--------- 5 | +--+----------- 4 | +--+----------------- 3 +--+----------------------- 2 +--+----------------------------- 1 1. Heading, degrees true 2. Heading, degrees magnetic 3. Speed, knots 4. Speed, km/h 5. Checksum VLW - Distance traveled through water $--VLW,x.x,N,x.x,N*hh<CR><LF>...

  • Page 28: List Of Abbreviations

    LIST OF ABBREVIATIONS Abbreviation Meaning Automatic After Alarm Clearance Clearance CONTROL Control Degree(s) Dimmer, DIMMER Dimmer Distance Distance DOPPLER Doppler Fa, fa Fathom(s) feet Ground Ground Keel Keel Knot(s) Meter per seconds MENU Menu MODE Mode Nautical Mile(s) POWER Power REMOTE Remote Simulation...

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