JRC JLN-550 - User manual

INSTRUCTIONINSTRUCTION
MANUALMANUAL
JLNJLN-550550
DOPPLER SONARDOPPLER SONAR
ISO 9001, ISO 14001 Certified
OCT. 2019 Edition 7CODE No.7ZPBS2802F
Not use the asbestos
For further information,contact:
URL Head office : http://www.jrc.co.jp/eng/
Marine Service Department
1-7-32 Tatsumi, Koto-ku, Tokyo 135-0053, Japan
: [email protected]
:
[phone]
e-mail
One-call

General Information i
General Information
Thank you for purchasing the Japan Radio Co., Ltd. JLN-550 Doppler Sonar. The JLN-550 conforms to
the IMO (International Maritime Organization) performance standards, provides accurate displays of
ship’s speed over a wide range from dead slow to maximum.
" Before attempting to operate this equipment, read this instruction manual thoroughly to ensure correct and
safe operation in accordance with the warning instructions and operation procedures.
" You are strongly recommended to store this instruction manual carefully for future reference.
In the event that you have an operational problem or malfunction, this manual will provide useful
instructions.
7ZPBS2802F

ii General Information

Before You Begin iii
Before You Begin
Symbols Used In This Manual
In this manual, and on the equipment, we use several warning signs to call your attention to
important items that, if not handled correctly, could present danger to yourself or property. These
warning note classifications are as described below.
Please be fully aware of the importance of these items before using this manual.
Examples of Related Symbol Marks Used in this Manual and on the
Unit
Each mark is intended to alert the user to the presence of precautions
including danger and warning items. The picture in each mark (“Electric
shock” in the example on the left.) alerts you to operations that should be
carefully performed.
Each mark is intended to alert the user to the presence of prohibited activity.
The picture/word in/beside each mark (“Disassembling Prohibited” in the
example on the left.) alerts you to operations that are prohibited.
Each mark is intended to alert the user to the presence of necessary
instructions. The picture in each mark (“Disconnect the power plug” in the
example on the left.) alerts you to operations that must be performed.
WARNING LABEL
You can see the warning label on the top of the unit.
Do not attempt to remove the warning label from the unit or impair or modify it.

iv Usage Hints
Usage Hints
Do not remove the cover of this unit. Otherwise, you may touch a
high-voltage part and suffer from an electrical shock.
Do not touch the radiator fin of the unit. Doing so may cause a burn by
high temperature.
Do not disassemble or modify this unit. Otherwise, a fire, an electrical
shock, or a failure may occur.
Do not place a vessel containing water, etc. or a metallic object on this
unit. When water spills or when water or the object enters the unit, a
fire, an electrical shock, or a failure may occur.
Do not use this unit at a voltage other than the supply voltage stated on
the unit. Otherwise, a fire, an electrical shock, or a failure may occur.
Do not insert or remove the power cord or operate switches with a wet
hand. Otherwise, you may suffer from an electrical shock.
Do not damage or modify the power cord(s). Placing a heavy object
onto, heating, streching or bending the cord May cause a fire or
electrical shock.
Do not preform maintenance on the transducer while the ship is in the
water. Doing so may cause injury or water leakage to the ship.
There are no customer-
serviceable parts inside. Unauthorized
inspections and repairs could cause fires and electrical shock hazards.
Please call our field representative or your nearest JRC office for
inspection and repair services.
In the event that you spill or dro
p any liquids or metals etc., turn off
the main unit, unplug the power, and contact your sales agent outlet or
one of JRC’s branch offices, sales centers or liaison offices.
Continuing operation as is may cause a fire, electric shock or
malfunction.
In the event that smoking or burning odors are detected, immediately
terminate operation of the unit and contact your sales agent outlet or
one of JRC’s branch offices, sales centers or liaison offices.
Continuing operation as is may cause a fire or electrical shock. Never
attempt to service the interior of the unit.

Usage Hints v
Contact our service center or agent for any electrical work or
installation of this unit. With the exception of qualified service
personnel, do not attempt to service this unit, as doing so may cause
malfunction.
Do not install this unit is exposed to direct sunlight for a long time or
the temperature rises above 55°
C. Doing so may cause a fire or
electrical shock. (Expect Wing Display)
Do not place the unit on a wobbly stand or any unsteady foundation.
Doing so may cause the unit to fall resulting in injury or damage.
Do not bring the unit in a cooled state abruptly into a warm room. A
high voltage may leak due to condensation may result in failure. In
this case, use the unit set after leaving it alone for 30 min.
When installing this set, be sure to connect the grounding wire to the
grounding terminal of the unit. Otherwise, you may suffer an
electrical shock during a failure or leak.
Do not turn on the power switch of the unit while the ship is on the
shore. Otherwise, the transducer may malfunction.
Do not covering for the unit. Otherwise, fire hazards or system failure
can result from the heated set.
Reasonable care must be exercise
d for the routing of the transducer
cable, power cable and grounding cable. Otherwise, the unit may
adversely effect other equipment or vice versa.

vi External View
External View
2-axis type
3-axis type

Contents vii
Contents
General information....................................................................................................................................... i
Before You begin...........................................................................................................................................iii
Usage Hints ................................................................................................................................................... iv
External View ............................................................................................................................................... vi
1. Introduction ........................................................................................................................................... 1
1.1 Function........................................................................................................................................ 1
1.2 Features......................................................................................................................................... 2
1.3 Components.................................................................................................................................. 3
1.4 Construction ................................................................................................................................. 4
1.5 System Configuration................................................................................................................... 9
2. Names and Functions of the Components......................................................................................... 10
3. Installation ........................................................................................................................................... 12
3.1 Installing the Display and Distributor and Processor Unit ......................................................... 13
3.2 Mounting the Transducer............................................................................................................ 13
3.3 Connection Diagram................................................................................................................... 14
4. Operation ............................................................................................................................................. 15
4.1 Basic Operation .......................................................................................................................... 15
4.2 Ship speed Display ..................................................................................................................... 18
4.3 Distance run Display .................................................................................................................. 21
5. Maintenance......................................................................................................................................... 22
5.1 Daily maintenance ...................................................................................................................... 22
5.2 Troubleshooting for Malfunctions or Abnormalities .................................................................. 22
6. Consider Installation........................................................................................................................... 23
7. After-Sales Service .............................................................................................................................. 24
7.1 When ordering a repair............................................................................................................... 24
7.2 Recommendation of overhaul..................................................................................................... 24
8. Disposal ................................................................................................................................................ 25
9. Specifications ....................................................................................................................................... 26
Appendix
1. Remarks on Error resulting from deviation of radiation angle from the reference value l.................... 28
2. Outline and Setting drawing: Standard Equipment. .............................................................................. 30
3. Spare Parts List...................................................................................................................................... 37
4. List of standard items, unit and abbreviations....................................................................................... 38

1. Introduction 1
1. Introduction
1.1 Function
The JLN-550 Doppler Sonar is a system with one transducer mounted on the bottom of the vessel
which direct beams of sonic radiation at an angle downward and measures the water speed and
ground speed by using signals that are reflected from the sea bottom or an underwater layer.
It measures the speed along two different directions: longitudinal, bow transverse.
It calculates the speed stern transverse using the ROT(Rate of turn gyro) signal.
It also measures and display run distance.
Figure 1.1 Doppler Sonar

2 1. Introduction
1.2 Features
JLN-550 Doppler Sonar has the following features:
1) It can measure the ground speed within the depth range of approximately 2 meters through
approximately 250 meters.
2) The water speed is measured simultaneously with ground speed.
3) Compact transducers.
4) High-recognition Main display using large size LED.
5) Supper-bright-LED units for the wing display which are easy to read even in direct sunlight.
6) Confirms to the following standards: IMO A.824(19), as amended by MSC.96(72),
IMOA.694(17), IEC 62288:2014 IEC 61023:2007, IEC 60945:2002, IEC 61162-1:2016

1. Introduction 3
1.3 Components
The standard equipment and options are shown in the tables below.
Standard Equipment
Description
Model No.
QTY
MASS
Remarks
MAIN DISPLAY
NWW-60DA
-60DB
-60TA
-60TB
1
2kg
DA: 2 axis/Wall mount type
DB: 2 axis/Flush mount type
TA: 3 axis/Wall mount type
TB: 3 axis/Flush mount type
Select one.
SIGNAL DISTRIBUTOR
NQA-3012
1
10kg
SIGNAL PROCESSOR
NJC-24
1
15kg
TRANSDUCER
NKF-770
1
120kg
Flush mount type
With cable 40m
SPA IR PARTS
7ZXBS0018
1
INSTRUCTION MANUAL
7ZPBS2802F
Options
Description
Model No.
QTY
MASS
Remarks
WING DISPLAY
NWW-61D
-61T
2
5kg
D: 2 axis type
T: 3 axis type Select one.
REMOTE DISPLAY
NWW-62DA/DB
NWW-62TA/TB
1
1.3kg
D: 2 axis, T: 3 axis type
A: Wall, B: Flush mount type
GYRO SENSOR
NJZ-1080
1
3kg
OPERATOR UNIT
NWZ-120GA
-120GB
1
3.5kg
GA: Wall mount type
GB: Flush mount type
Select one
RECTIFIER
NBA-3263
1
8Kg
For NWZ-120G
REMOTE DISPLAY
NWW-24xxxxx
2max
6.5kg
Analog flush mount type
REMOTE DISPLAY
NWW-25xxxxx
7kg
Analog wall mount type
REMOTE DISPLAY
NWW-26xxxxx
2.5kg
Analog small flush mount
type
REMOTE DISPLAY
NWW-49A
-49B
1
2.5kg
A: Wall mount type
B: Flush mount type
DIMMER UNIT
NCM-227
1
For NWW-60/62
(For digital display)
DIMMER UNIT
NCM-329H
1
For NWW-24/26
(For analog display)
DIMMER UNIT
NCM-506
1
For NWW-49
(For digital display)
DISTANCE COUNTER
NWW-7
1
Flush mount type
TRANSDUCER
NKF-772
1
Gate Valve type
With cable 40m

4 1. Introduction
1.4 Construction
Equipment Outline
The unit dimension is as follow:
(1) Main Display NWW-60DB/TB
(2) Signal Distributor NQA-3012
Figure 1.4 NQA-3012 (Unit: mm)
(3) Signal Processor NJC-24
Figure 1.3 NWW-60TB (Unit: mm)
Figure 1.2 NWW-60DB (Unit: mm)
Figure 1.5 NJC-24 (Unit: mm)

1. Introduction 5
(4) Transducer NKF-770
(5) Wing Display NWW-61D/T (Option)
(6) Remote Display NWW-62DB/TB (Option)
Figure 1.7 NWW-61D (Unit: mm)
Figure 1.6 NKF-770 (Unit: mm)
Figure 1.8 NWW-61T (Unit: mm)
Figure 1.9 NWW-62DB (Unit: mm) Figure 1.10 NWW-62TB (Unit: mm)

6 1. Introduction
(7) Gyro Sensor NJZ-1080 (Option)
(8) Operating Unit NWZ-120GA/GB (Option)
(9) Rectifier NBA-3263 (Option)
Figure 1.11 NJZ-1080 (Unit: mm)
Figure 1.12 NWZ-120GA (Unit: mm) Figure 1.13 NWZ-120GB (Unit: mm)
Figure 1.14 NBA-3263 (Unit: mm)

1. Introduction 7
(10) Remote Display NWW-49A/B (Option)
(11) Remote Display NWW-24/25/26 (option)
Model
NWW-24
(Finish mount)
NWW-25
(Wall mount)
NWW-26
(Panel mount)
Area
Size
Green Orange Green Orange Green Orange
LNWW-
24L20G
NWW-
24L20O
NWW-
25L20G
NWW-
25L20O
NWW-
26L20G
NWW-
26L20O
MNWW-
26M20G
NWW-
26M20O
-4∼20kt
SNWW-
24S20G
NWW-
24S20O
NWW-
25S20G
NWW-
25S20O
NWW-
26S20G
NWW-
26S20O
LNWW-
24L25G
NWW-
24L25O
NWW-
25L25G
NWW-
25L25O
NWW-
26L25G
NWW-
26L25O
MNWW-
26M25G
NWW-
26M25O
-5∼25kt
SNWW-
24S25G
NWW-
24S25O
NWW-
25S25G
NWW-
25S25O
NWW-
26S25G
NWW-
26S25O
LNWW-
24L30G
NWW-
24L30O
NWW-
25L30G
NWW-
25L30O
NWW-
26L30G
NWW-
26L30O
MNWW-
26M30G
NWW-
26M30O
-6∼30kt
SNWW-
24S30G
NWW-
24S30O
NWW-
25S30G
NWW-
25S30O
NWW-
26S30G
NWW-
26S30O
Figure 1.15 NWW-49A (Unit: mm) Figure 1.16 NWW-49B (Unit: mm)
Figure 1.17 NWW-24 (Unit: mm)
Figure 1.18 NWW-25 (Unit: mm) Figure 1.19 NWW-26 (Unit: mm)

8 1. Introduction
Figure 1.20 NCM-227/329H/506 (Unit: mm)
(12)Dimmer Unit NCM-227 / NCM-329H / NCM-506 (Option)
(13) Distance Counter NWW-7 (Option)
(14) Transducer NKF-772 (Option)
Figure 1.21 NWW-7 (Unit: mm)
Figure 1.22 NKF-772 (Unit: mm)

1. Introduction 9
1.5 System Configuration
250V－TTYCS－4 (YARD MA X.100m)
250V－TTYC－4 (YARD MAX.100m)
LOG pulse (200pulses/nm)
Opto - coupler OUTPUT
NWW-60D/T
MAIN DISPLAY
NQA-3012
SIGNAL DISTRIBUTOR
NWW-61D/T
WING DISPLAY
（OPTION）
NJC-24
SIGNAL PROCESSOR
NKF-770
TRANSDUCER
250V－TTYC－7S (YARD MAX. 500m)
250V－TTYC－4S (YARD MAX. 100m)
250V－TTYC－7S (YARD MAX. 100m)
250V－TTYC－4S (YARD MAX. 100m)
Extension Cable (Supplied by ＪＲＣ MAX. 40m)
0.6/1kV DPYC－1.5 ( YARD )
SHIP’S MAIN
100/110/115/220/230 VAC
50/60Hz 1 PHASE
NWW-24/25/26
ANALOG DISPLAY
（OPTION）
JLN-550 DOPPLER SONAR (SDME)
OVERALL SYSTEM BLOCK DIAGRAM
NWW-49A/B
REMOTE DISPLAY
（OPTION）
R.O.T
（OPTION）
GPS (NMEA)
Gyro (NMEA)
NMEA .1
LOG signal-1 (200pulses/nm)
Power fail alarm
2ch. Max
NMEA .2
NMEA .3
250V-TTYCS-1
or
250V-DPYCS-1
(YARD MAX.100m)
0.6/1kV DPYC－1.5 ( YARD )
24 VDC
(For Power fail alarm)
250V－TTYCS－1 (YARD MAX. 100m)
NMEA .4
NMEA .5
NWW-61D/T
WING DISPLAY
（OPTION）
LOG signal-2 (200pulses/nm)
LOG signal-3 (200pulses/nm)
LOG signal-4 (200pulses/nm)
LOG signal-5 (200pulses/nm)
LOG signal-6 (200pulses/nm)
LOG signal-7 (200pulses/nm)
LOG signal-8 (200pulses/nm)
External Trigger-1
External Trigger-2
Photo: NWW-61T
Photo: NWW-60TB
NWZ-120GA/GB OPERATOR UNIT
NJZ-1080
GYRO SENSOR
NBA-3263
RECTIFIER
NCM-227
DIMMER UNIT
(Option)
250V－TTYCS－1 (YARD MAX.20m)
NCM-329H
DIMMER UNIT
(Option)
NCM-506
DIMMER UNIT
(Option)
IEC61162-1:2016 INPUT
IEC61162-1:2016 OUTPUT
(Supplied by ＪＲＣ 5m)
250V－DPYC－1.25 (YARD)
SHIP’S MAIN
100/220 VAC
50/60Hz 1 PHASE
Relay closure OUTPUT
Ship Speed
NWW-7B
DISTANCE
COUNTER
（OPTION）
250V－TTYCS－1
(YARD MA X.100m)
Distance signal
BAM (NMEA)
to RADAR, ECDIS, BAM

10 2. Names and Functions of the Components
2. Names and Functions of the Components
The panel keys and their functions are shown below.
(1) Main Display
Figure 2.1 Operation Panel in the Main Display
No.
Keys
Functions
1
POWER
Alternately change POWER ON or POWER OFF
2
DIMMER
Adjust brightness
3
UNIT
Alternately change kts or m/s of speed unit
4
MODE
Cyclic change AUTO, BT, WT, GPS
5
TRIP
Alternately change TOTAL or TRIP of the distance
(2) Wing Display (Option)
Figure 2.2 Operation Panel in the Wing Display
No.
Keys
Functions
1
POWER
Alternately change POWER ON or POWER OFF
2
DIMMER
Adjust brightness
3
UNIT
Alternately change kts or m/s of speed unit
1
2
3
4
5
POWER
D I MMER
U N I T
M O D E
T R I P
POWER
F A I L
T R I P
T O T A L
D I S T A N C E
nm
POWER
DIMMER
UNIT
1
2
3