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