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For more details visit www.marinemegastore.com or call 0871 8732404

MED(EU Marine Equipment Directive) Certificate Number QQ-MED-07/03-01

Stable Speed Display in Dual Frequency Modes

For more details visit www.marinemegastore.com or call 0871 8732404

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For more details visit www.marinemegastore.com or call 0871 8732404

The JLN-550 Doppler Sonar is designed to provide ship speed information with higher stability in the dual frequency modes; one using a lower ultrasonic frequency that is adequate to measure the ship’ s speed against the ground up to larger depths and the other using a higher ultrasonic frequency that allows the ship’ s speed against the water to be measured even in water with tiny bubbles. The transducer is designed for dual-frequency transmission, but its size is smaller than the conventional models. This equipment is designed to comply with the following standards:

(19)   IMO A. 824   Revised MSC.96(72), IMO A.694 (1 7), IEC61023 : 1999, IEC60945 : 2002 and IEC61162-1 : 2000

FE AT U RE S Ship speed measurement is insensible to bubbles generated in high-speed navigation, ensuring stable speed display. The transducer is substantially downsized, allowing it to be installed on the bow side that is little affected by bubbles. An underwater-mateable connector is adopted for the transducer, so that a transducer can be replaced at a quay even in case of its failure. The equipment is provided with an additional function of indicating the ship’ s fore and aft speeds and port and starboard speeds by entering GPS information. The ship’ s port and starboard speeds at its arbitrary position can be indicated by entering ROT information. An optimal Doppler sonar system can be configured by combining a variety of options. On-line maintenance (option) allows any failure to be detected during navigation.

SPECIFICATIONS Operating system

2-axis 4-beam pulse Doppler sonar or ROT-combined 3-axis 4-beam pulse Doppler sonar (ROT: option)

Operating frequencies

2 4 0kHz (BT: for speed against the ground) 2MHz (WT: for speed against the water)

Speed range

0.0 0 to +4 0.0 0 kts B T F o r e / A f t : −1 9 9 to +9. 9 9 kts Port/Stb.: −9. 9 9 to +9. 9 9 kts (with optional ROT) Stern P/S: −9. 0. 0 0 to +4 0. 0 0 kts WT F o r e / A f t : −1

Distance run range

0 to 9 9 9 9 9. 9 9nm

Depth range

B T : 2 to 250m (below hull bottom) depending upon sea bottom conditions WT: 3m or more (below hull bottom)

Speed measuring accuracy

±1% or ±0. 1 kts whichever is greater

Total distance run accuracy

±1% or ±0. 1 nm whichever is greater

Ship speed indication

XX.XX 4-digit indicator (in kts or m/s) (P/S: 3-digit) Analog indication (in kts)

IEC6 1 1 6 2-1 inputs

ROT (Stern P/S speed) **ROT (excl. GPROT) GPS (GPS ship speed) GGA, RMC, RMA, GLL, VTG GYRO (GPS ship speed) HDT, HDG

(NMEA0 1 83) Data outputs

IEC6 1 1 6 2-1: 2 0 0 0 outputs: 5 circuits VBW, VLW, DPT, DBT DC voltage output:

Power supply

2 circuits (for analog indicator)

Opto coupler signal:

8 circuits (2 0 0 pulses/nm)

Relay closure signal:

1 circuit (2 0 0 pulses/nm)

Relay closure signal:

1 circuit (Power fail alarm)

1 0 0/1 1 0/1 1 5/2 2 0/2 3 0VAC ±1 0%、 5 0/6 0Hz, single-phase

Power consumption Operating temperature

3 0 0VA or less −1 5 to +5 5℃ For more details visit www.marinemegastore.com or call 0871 8732404

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For more details visit www.marinemegastore.com or call 0871 8732404 Wing Display NWW-61D/T (OPTION)

Remote Display NWW-24 / 25 / 26

Wing Display NWW-61D/T

Main Display NWW-60D/T

(OPTION)

(OPTION)

250V−TTYCS−4 (YARD MAX. 100m)

2ch. Max

Signal Processor NJC-24

R.O.T

250V−TTYCS−1 (YARD MAX. 100m)

(YARD) or (OPTION)

250V−TTYC−4S (YARD MAX. 100m) 250V−TTYC−7S (YARD MAX. 100m) 250V−TTYC−4S (YARD MAX. 100m)

GPS Gyro Echo Sounder Wind

Signal Distributor NQA-3012

250V−TTYC−7S (YARD MAX. 500m) Extension Cable ( JRC MAX. 40m)

Ship's Main Transducer NKF-770

100/110/115/220/230 VAC 50/60Hz 1 PHASE

24 VDC (for Alarm)

0.6/1kV DPYC−1.5 (YARD)

IEC61162-1:2000 .1 IEC61162-1:2000 .2 IEC61162-1:2000 .3 IEC61162-1:2000 .4 IEC61162-1:2000 .5 200 Pulse .1 200 Pulse .2 200 Pulse .3 200 Pulse .4 200 Pulse .5 200 Pulse .6 200 Pulse .7 200 Pulse .8

250V-TTYCS-1 or 250V-DPYCS-1 (YARD MAX.100m)

On line maintenance

0.6/1kV DPYC−1.5 (YARD)

Alarm

CONNECTION DIAGRAM

STANDARD COMPONENTS Description

Model

Main Display

NWW-60DB

Quantity 1

Remarks DB: 2-axis flush mount type (standard) DA: 2-axis wall mount type T B: 3-axis flush mount type T A: 3-axis wall mount type

Signal Distributor

NQA-3012

Signal Processor

NJC-24

Transducer

NKF-770

Spare Parts

7ZXBS0018

Instruction Manual

7ZPBS2802

IP55 With underwater-mateable connector and max. 40m cable English

OPTIONS Component

Model

Wing Display

NWW-61D

Quantity 2

Remarks D: 2-axis, IP56 T : 3-axis

Remote Display

NWW-24

Remote Display

NWW-25

Remote Display

NWW-26

Distance Counter

NWW-7B

Flush-mount type

Gyro Sensor

NJZ-1080

ROT

Operator Unit

NWZ-120GA

ROT, GA: Wall-mount type GB: Flush-mount type

Rectifier

NBA-3263

ROT

Dimmer Unit

NCM-227

For NWW-60 Main Display Unit

Dimmer Unit

NCM-329H

For NWW-24/25/26 Remote Display Unit

Transducer

NKF-770W

Inner demountable type

Transducer

Analog Flush-mount type 2 max.

Analog wall mount type Analog Flush-mount type

Gate valve type NKF-772 1 For more details visit www.marinemegastore.com or call 0871 8732404

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DIMENSIONS & WEIGHT For more details visit www.marinemegastore.com or call 0871 8732404 Main Display Unit

NWW-60DA

NWW-60DB

NWW-60TA

NWW-60TB

219

220

95

74.8

Weight : 3kg

219

220

95

Weight : 2kg

NJC-24

Signal Processor Unit

320

384

320

384

Unit : mm

74.8

Weight : 3kg

Signal Distributor Unit

Weight : 2kg

NQA-3012 Unit : mm

604

520

553

435

210 357

480

160

Weight : 15kg

Wing Display Unit

Weight : 10kg

NWW-61D(option)

NWW-61T(option) 138.5

225

225

MAX370

Transducer Unit

Unit : mm

292

292

138.5

MAX370

Weight : 5kg

NKF-770

Weight : 5kg

NKF-772(option) Unit : mm

φ155

φ375

355

φ315

532

922

7 φ25

Weight : 120kg

Weight : 250kg

φ300

Specifications and appearance may be subject to change without notice .

φ232

For further information, contact:

URL

Since 1915

Main Office: Nittochi Nishi-Shinjuku bldg. 10-1, Nishi-Shinjuku 6-chome Shinjuku-ku, Tokyo 160-8328, Japan   Telephone: +81-3-3348-4099   Facsimile: +81-3-3348-4139 Overseas Branches : Seattle, Amsterdam Liaison Offices : Taipei, Manila, Jakarta, Singapore, Hanoi, New York, Piraeus For more details visit www.marinemegastore.com or call 0871 8732404 23EM 2003.7

'03.12

4

ISO9001,ISO14001 Certified

CAT.No.Y14-191(No.735-2-5)D

Printed in Japan


JRC Pro-JLN-550