Model: DS-85

Attain Highly Accurate &Stable Speed Measurement
Highly Accurate Measurements

When a vessel moves through the water, acoustic noise is created and is known as a boundary layer. This noise layer
can cause errors with acoustic devices. By measuring speed through water (STW) farther away from the keel, the DS-85
penetrates through this noise and boundary layer resulting in a more stable and accurate speed measurementcompared to an electromagnetic speed log.

Boundary Layer
Ship Speed Measurement Water Depth :3m or deeper under the keel
Better Stability

Compact Gate Valve (Option)

With the new transducer and newly designed process algorithm,
the impact of foam is reduced, enabling highly accurate and stable
ship speed information.

The new compact and lightweight ball-type gate valve is
30% lighter than the traditional valve. When replacing
the previous model (DS-80), the same tank or valve canbe used, reducing the cost of a retroﬁt.

Improved Interference Immunity▶Development of a transducer equipped withthe latest technology①Usage of a high frequency witha strong foam resistance②Achievement of an optimal ultrasonicwidth and angle▶Signiﬁcant improvement of the signal
processing capability

Easy-to-Read Display
Easy-to-read display screen evenfrom a distance, thanks to large
characters and clear, bright tones

Comparison between the DS-80 valve (40kg)
and the DS-85 valve (27kg)

Measurement Image

Complies with the latest IMO, IEC Standards
IMO A.694(17)IEC61023 Ed.3.0
IMO A.824(19)IEC61162-1 Ed.5.0
IMO MSC.36(63)IEC61162-2 Ed.1.0
IMO MSC.97(73)IEC61162-450 Ed.2.0
IMO MSC.191(79) IEC62288 Ed.2.0
IMO MSC.302(87) IEC60945 Ed.4.0
IEC62923-1/-2 Ed.1.0

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Speciﬁcations

Equipment

Product Name

Doppler Speed Log

Standard

Number of Transceiver Beams

2 Beams

Display Unit

DS-8500

Transmission Frequency

2 MHz

Distribution Unit

DS-8510

Measurement Speed Range-40.0 to +40.0kn (Longitudinal Direction)

DS-8510-LIF*Junction Box

CI-630Distance Measurement Range

0.00 to 999999.99NM

Transceiver Unit

DS-8520

Ship Bottom Tank : Protrusion Type

DS-781

Ship Speed Measurable Water Depth

3m or deeper below Ship Bottom

Transducer

DS-8530

Ship Bottom Tank : Buried Type

DS-784

Output Ship Speed

1-axis to Water Speed

Installation Material,

Ball Type Gate Valve

DS-854

Ship Speed Measurement Accuracy±1% or ±0.1kn (larger of the two)

Accessories, Spares

Gate ValveDS-786

Distance Measurement Accuracy±1% or ±0.1NM (larger of the two)OP65-3

Power Supply

100-115 VAC：0.6 A / 200-220 VAC：0.4 A

Options

LIF Board Kit
Front Fastening Panel

OP24-35

LCD

4.3 inch Color LDC WQVGA

Sub Display

DS-8500

F Mount Sponge Kit

OP05-141

Minimum Brightness

under 0.1cd/m

RD-50

Waterproof Kit

OP05-139

Maximum Brightness

over 600cd/m2RD-20

Replacement Kit

OP05-140Brightness Adjustment

18 Levels

SL-200SC Lock

OP65-4FL-200S

Cable AssemblyOP05-146

DS-389Cable Protection Kit

OP05-147

MF-22R

Installation Material

2

Ship Speed and Distance Screen, Ship Speed Screen,

Display Mode

Distance Screen, Analog Meter Screen

Display Language

English, Japanese

No. of Ports

Serial Input

Range Switch for Analog Display

Serial Output

DS-F25

Dimmer for Analog Display

2 Ports(IEC 61162-1/2x1, IEC 61162-1x1)

DS-FE25

8 Ports

DS-S25
DS-SE25(IEC 61162-1/2x1, IEC 61162-1x7)

Temperature Range1 Port (IEC 61162-450)

External KP Input

1 PortSub Display

2 Ports

Dimmer1 PortPOWER FAIL Output

1 PortSYSTEM FAIL Output (Option)

1 PortAnalog Output (Option)

4 Ports

Log Pulse Output (Option)

1 PortRD-502DimmerInterconnection
DiagramStandard
Conﬁguration
Optionor On-site
Arrangement

Display Unit
Distribution Unit

-15℃ to +55℃

Display Unit
DS-8500

Transducer
Relative Humidity-5℃ to +35℃

Distribution Unit

*3

Display Unit
Distribution Unit

IP22

Transceiver Unit
Transducer(IP20 with Tabletop Mount)

TransceiverUnit

IP44DS-8520

Distribution Unit
DS-8510
PowerFail OUT
Navig.
System

IPX8

IEC 60945 Ed.4.0
Transducer
DS-8530

Cable Lenght:
10/20/30/40ｍ

Dimensions

107 4.2"

145 5.7"

12 0.5" 62 2.4"
4xø3.595 3.7"

EXT KPIN

LAN IEC61162-450

Navigation
System

IEC61162-1/2

Navigation
SystemLIF Board*2

Range
SwitchNavig.
System Fail System
OUT

AnalogAnalog Output Display
Log Pulse Output

DimmerNavigation System

1.5

210 8.3"
107 4.2"

20 0.8"1.5 (330 13.0") 0.1"

(100.5 4.0")ø175(260 10.2")
90 3.5"330 13.0"°

90(53 2.1")

175

ø175
ø180
HULL PLATE

442 17.4"355±1 14.0"

13 kg 28.7 lb
2xø7
3 0.1" 130 5.1"

404 15.9"

95.5 3.8"(136.5 5.4") (260 10.2")

175

BOW
247 9.7"(160 6.3")

315±1 12.4"(186 7.3")

27 kg 59.5 lb

2xR3.57516 20.3"

Ball Type Gate Valve
DS-854

122 4.8"
4xR5Distribution Unit DS-8510

355±1 14.0"

0.1"

Gate Valve DS-786 40 kg 88.2 lb

6 kg 13.2 lb

350 13.8"315±1 12.4"

26.5 1.0"

110 4.3"

125 4.9"

Transceiver Unit DS-8520

Packing for Cables(Option)Packing for Cables(Option)160

Dimmer
RD-502

Mounting Holes

154±5 6.1"

125 4.9"30°

348 13.7"

Dimmer Input*1 When connecting two RD-50, use the power supply onboard.
The Distribution Box can only supply power to one device.
*2 For the DS-8510-LIF, the LIF board configuration is standard.
*3 The cable lenght (Distribution Box to Tranceiver Box) is up to 400m. If necessary, use the Junction Box.

Flushmount (Option) 0.6 kg 1.3 lb

74 2.9"Sub Display
DS-8500/RD-50*1/20

301.2"

21±3 0.8"

172 6.8"
145 5.7"

146 5.8"

Ext. KP

100-115/200-220 VAC

Display Unit DS-8500
Hanger 0.7 kg 1.5 lb

Sub Display Output

IP22(IP35 with Waterproog Kit Installed)

Vibration

Sub Display
DS-8500/
RD-50*1/20

93 % (+40℃)

Transceiver Unit
Protection Rating*3

Junction Box
CI-630

Display Unit

Sub Display Output

Cable Lenght:
Max 50m

Transceiver Unit

12.5 0.5”

Environment

Ethernet* The Specifications are when the LIF board is mounted.
When using the Analog Output, the Log Panel Output
or the System Fail, the LIF board is necessary.

400 15.8"
350 13.8"

Interface

Analog Display

RD-501** for RD-50/20375±1 14.8"

Display Unit

Remote Control Unit

FURUNO ELECTRIC CO., LTD.

FURUNO DANMARK A/SFURUNO FRANCE S.A.S.

FURUNO SHANGHAI CO., LTD.

PT FURUNO ELECTRIC INDONESIAFURUNO U.S.A., INC.

FURUNO SVERIGE AB

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FURUNO CHINA CO., LTD.

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FURUNO FINLAND OYFURUNO ITALIA S.R.L.

FURUNO KOREA CO., LTD

FURUNO ELECTRIC (MALAYSIA)
SND. BHD.

FURUNO (UK) LIMITEDFURUNO POLSKA Sp. Z o.o.

FURUNO HELLAS S.A.

FURUNO SINGAPOREFURUNO NORGE A/SFURUNO DEUTSCHLAND GmbHFURUNO (CYPRUS) LTD

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C-2210LB
Catalogue No. CA000001651