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JLN-205 Speedlog Instruction Manual
General Information
Thank you for purchasing the Japan Radio Co., Ltd. JLN-205 Doppler Log. The JLN-205 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.
General Information
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General Information
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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.
Indicates warning items that, if ignored, may
result in serious personal injury or even death.
Indicates cautionary items that, if ignored,
may result in personal injury or physical
damage.
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.
Before You Begin
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Usage Hints
Do not remove the cover of this unit. Otherwise, you may touch a
high-voltage part and suffer from an electrical shock.
Turn off the power on/off switch, and turn off the power supply
breaker when you do the maintenance check of this unit. Otherwise, a
fire, an electrical shock, or a failure may occur.
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. Placing a heavy object
onto, heating, stretching or bending the cord may cause a fire or
electrical shock.
Do not any maintenance on the transducer while the ship is in the
water. Doing so may cause injury or water leakage to the ship.
Do not check or repair in this unit. Please call our field representative
or your nearest JRC office for inspection and repair services. It causes
it of a fire or electrical shock.
In the event that you spill or drop any liquids or metals etc., turn off
the unit, turn off the power supply breaker, and contact your sales
agent outlet or one of JRC 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 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.
iv
Usage Hints
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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 place where hot wind is hit or the temperature rises above 55 °C.
Doing so may cause a fire or a breakdown.
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 put this unit in the cabinet, and do not cover with the cardboard
etc. Heat shuts oneself up, and doing so may cause a fire or a
breakdown.
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 or the
grounding plate 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.
Reasonable care must be exercised for the routing of the transducer
cable, power cable, signal cable and grounding cable. Otherwise, the
unit may adversely effect other equipment or vice versa.
Do not use an organic solvent such as thinner or benzine when you
clean the surface of the unit. For cleaning the surface, remove the dust
and refuse and wipe with clean dry cloth. Otherwise, the painting on
the surface may be damaged.
Usage Hints
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External View
External View
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Contents
General information ......................................................................................................................................i
Before You begin .......................................................................................................................................... iii
Usage Hints .................................................................................................................................................. iv
External View ............................................................................................................................................. vii
1.
Introduction .......................................................................................................................................... 1
1.1
Function ....................................................................................................................................... 1
1.2
Features ........................................................................................................................................ 2
1.3
Components ................................................................................................................................. 3
1.4
1.5
Construction ................................................................................................................................ 4
System Configuration .................................................................................................................. 9
2.
Names and Functions of the Components ........................................................................................ 10
3.
Installation .......................................................................................................................................... 11
4.
5.
6.
3.1
Installing the Main Display Unit ...............................................................................................12
3.2
Installing the Signal Distributor Unit ........................................................................................ 13
3.3
Installing the Signal Processor Unit .......................................................................................... 13
3.4
Mounting the Transducer ........................................................................................................... 13
3.5
Connection Diagram................................................................................................................... 14
Operation ............................................................................................................................................. 15
4.1
Overview ................................................................................................................................... 16
4.2
Turning the unit ON/OFF .......................................................................................................... 17
4.3
Initial screen / Self test .............................................................................................................. 17
4.4
Normal screen ............................................................................................................................ 17
4.5
Adjusting Contrast and Back Lighting ......................................................................................19
4.6
Trip Distance Reset ................................................................................................................... 19
4.7
Vessel Speed Unit ...................................................................................................................... 20
4.8
Menu Setting ............................................................................................................................. 20
4.9
Warning message ....................................................................................................................... 23
Detail Setting ....................................................................................................................................... 24
5.1
Initial operation of Detail Setting .............................................................................................. 24
5.2
Detail Setting ............................................................................................................................. 24
Maintenance......................................................................................................................................... 26
6.1
Daily maintenance...................................................................................................................... 27
6.2
Troubleshooting for Malfunctions or Abnormalities .................................................................. 27
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8.
9.
JLN-205 Speedlog Instruction Manual
Consider Installation........................................................................................................................... 28
After-Sales Service .............................................................................................................................. 29
8.1
When ordering a repair............................................................................................................... 29
8.2
Recommendation of overhaul..................................................................................................... 29
Disposal ................................................................................................................................................ 30
9.1
Disposal of the Equipment ......................................................................................................... 30
10. Specifications ....................................................................................................................................... 31
Appendix ...................................................................................................................................................... 32
1.
2.
Remarks on Error resulting from deviation of radiation angle from the reference value ........... 32
Outline and Setting drawing ...................................................................................................... 34
3.
Spare Parts List .......................................................................................................................... 40
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1. Introduction
1.1 Function
The JRC Model JLN-205 Doppler Log is an equipment for measuring accurately the true speed
and run of a ship, utilizing the Doppler shift of ultrasonic signals, which are radiated from a
trnsducer into sea water downward obliquely to the bow and stern sides, then scattered and
reflected in the sea water. The transducer is mounted on the hull bottom.
This equipment measures a relative speed to seawater from the hull bottom within 3m. Therefore,
ship’s speed corresponding to the output of a main engine can be obtained without containing the
speed such as the currents. The ship’s speed error margin caused by the change in the water line
doesn't occur because the transmission and the reception of the pulse are done, and it excludes the
signal in the vicinity of the bottom of a ship. Moreover, because the dual beem method to launch
the ultrasonic wave signal in two directions (fore and aft) is adopted, the ship’s speed error margin
because of the change in the trim is greatly reduced.
This equipment offers measured information to other equipment such as radar and ECDIS.
Figure 1.1 Doppler Log
1
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1.2 Features
JLN-205 Doppler Log has the following features:
1) Ship’s Speed Through the Water
Using a high-accuracy pulse Doppler system and high-frequency ultrasonic signals,
signals reflected from approximately 2 to 3m underwater below the hull bottom are
tracked to detect their Doppler frequency shifts, ensuring highly accurate
measurement of own ship’s speed through the water without being effected by
following waves.
2) Free of Errors Due to Hull Motions
An ultrasonic beam pair is transmitted aslant underwater in the fore and aft
directions. The error margin because of the hull motion like the rolling and the
pitching can be greatly removed by measuring the difference of both Doppler shift
reception signals. This equipment ensures high accuracy of speed measurement even
in roughest sea conditions.
3) Reliable Compact Transducer
The transducer unit is of molded rubber and has a compact and lightweight
construction, ensuring ease of installation. Moreover, the unit has been designed to
minimize the effects of aeration, ensuring stable, accurate operation. There is also no
troublesomeness of putting the detector into and out of water when the ship leaves
and enters the port.
4) Confirms to the following standards
IMO A.824(19), as amended by MSC.96(72), IMO A.694(17), IEC 61023:1999, IEC 60945:2002,
IEC 61162-1:2000
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1.3 Components
The standard equipment and options are shown in the tables below.
Standard Equipment
Description
MAIN DISPLAY
Model No.
NWW-65A
-65B
QTY
1
MASS
0.8kg
IP
IPX5
SIGNAL DISTRIBUTOR
NQA-4288
1
6kg
IPX2
SIGNAL PROCESSOR
NJC-25
1
6kg
IPX5
TRANSDUCER
NKF-547
1
17kg
IPX8
SPAIR PARTS
7ZXBS0020
1
--
--
INSTRUCTION MANUAL
7ZPBS2803
1
--
--
Options
Description
SLAVE DISPLAY
Model No.
NWW-65S
QTY
2Max.
MASS
0.8kg
Remarks
ANALOG DISPLAY
NWW-24
2Max.
6.5kg
Flush mount type
NWW-25
7kg
Wall mount type
NWW-26
2.5kg
Panel mount type
1.5kg
Fore/Aft. Speed &. Direction
2.5kg
REMOTE DISPLAY
NWW-5
1Max.
NWW-16
3
Remarks
A: Desk Form type
B: Console mount type
Select one.
Flush mount type
With cable 30m
1Max.
0.8kg
Fore/Aft. Speed &. Direction
Distance
Distance, 9999.99nm Max.
NCM-227D
--
0.5kg
for Main/Slave Display
NCM-329
--
0.5kg
for Analog Display
NCM-227
--
0.5kg
for Remote Display
JUNCTION BOX
NQD-2025
--
0.5kg
TRANSDUCER
NKF-531E
1
48kg
NWW-65/S---NQA-4288
for extension
Gate Valve type
With cable 25m
DISTANCE COUNTER
NWW-7
DIMMER UNIT
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1.4 Construction
Equipment Outline
The unit dimension is as follow:
(1) Main Display NWW-65A/B
Figure 1.2 NWW-65A OUT LINE (Disk Form type)
Figure 1.3 NWW-65B OUT LINE (Console mount type)
Unit: mm
Unit: mm
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(2) Signal Distributor NQA-4288
Figure 1.4 NQA-4288 OUT LINE
Unit: mm
(3) Signal Processor NJC-25
Figure 1.5 NJC-25 OUT LINE
5
Unit: mm
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(4) Transducer NKF-547
Figure 1.6 NKF-547 OUT LINE
Unit: mm
(5) Transducer NKF-531E (Option)
Figure 1.7 NKF-531E OUT LINE
Unit: mm
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NWW-24
NWW-25
NWW-26
(Finish mount)
(Wall mount)
(Panel mount)
Ar ea S iz e G re en Ora nge Gre en Ora nge G ree n Ora nge
NWW- NWW- NWW- NWW- NWW- NWWL
24L20G 24L20O 25L20G 25L20O 26L20G 26L20O
t
k
0
NWW- NWW2 M
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NWW- NWW- NWW- NWW- NWW- NWWL
(6) Analog Display (Option)
t
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M
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26M25G
NWW- NWW- NWW- NWW- NWW24S25G 24S25O 25S25G 25S25O 26S25G
NWW- NWW- NWW- NWW- NWW24L30G 24L30O 25L30G 25L30O 26L30G
NWW――
――
――
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26M30G
NWW- NWW- NWW- NWW- NWW24S30G 24S30O 25S30G 25S30O 26S30G
Figure 1.8 Analog Display OUT LINE
26L25O
NWW26M25O
NWW26S25O
NWW26L30O
NWW26M30O
NWW26S30O
Unit: mm
(7) Remote Display NWW-5 (Option)
Figure 1.9 NWW-5 OUT LINE
Unit: mm
(8) Remote Display NWW-16 (Option)
Figure 1.10 NWW-16 OUT LINE
7
Unit: mm
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(9) Distance Counter NWW-7 (Option)
Figure 1.11 NWW-7 OUT LINE
Unit: mm
(10) Dimmer Unit NCM-227/329 (Option)
Figure 1.12 NCM-227/329 OUT LINE
Unit: mm
(11) Junction Box NQD-2025 (Option)
(NCM-227D)
NWW-65
NQA-4288
CABLE INLET
CABLE INLET
1 CABLES
2 CABLES
Figure 1.13 NQD-2025 OUT LINE
Unit: mm
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1.5 System Configuration
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1. Introduction
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JLN-205 Speedlog Instruction Manual
2. Names and Functions of the Components
The panel keys and their functions are shown below.
Buzzer
Main Display
3
4
LCD Display
5
2
1
Figure 2.1 Operation Panel in the Main Display
No.
1
Keys
Functions
• Power ON is done when pushing during long time (2 seconds or
Power
PWR
OFF
more) until the buzzer sound ‘pi’ are heard.
CLR
key to turn off the power.
• Push this key and the
OFF
• The menu is ended.
• The assistance buzzer is stopped.
2
Clear
3
Dial
• Turn to select menu.
Down
(Turn dial counterclockwise to scroll downward and turn it clockwise
to scroll upward.)
• Selects menu items.
• Sets numeric values when menu items are numeric entry.
(The numbers change faster, when the dial is turned faster.)
• Push the dial to select a menu or to enter a setting.
• The TRIP value is reset when pushing during long time.
• Push this key and the CONT
key to display the menus.
DIM
CLR
OFF
Up
Push (Press dial)
4
Mode
MODE
5
Contrast
CONT
DIM
• Whenever every pushing, the display mode changes.
• The speed unit changes if it pushes during long time.
• Turn to Dimmer and Contrast menu.
• Dimmer and Contrast return to the default value (DIM=5,CNT=3)
when pushing during long time.
2. Names and Functions of the Components
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3. Installation
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 any maintenance on the transducer while the ship is in the water. Doing so
may cause injury or water leakage to the ship.
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.
When installing this set, be sure to connect the grounding wire or the grounding plate
to the grounding terminal of the unit. Otherwise, you may suffer an electrical shock
during a failure or leak.
Do not install this unit is exposed to direct sunlight for a long time or the place where
hot wind is hit or the temperature rises above 55 °C. Doing so may cause a fire or a
breakdown.
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 put this unit in the cabinet, and do not cover with the cardboard etc.
shuts oneself up, and doing so may cause a fire or a breakdown.
Heat
Reasonable care must be exercised for the routing of the transducer cable, power
cable, signal cable and grounding cable. Otherwise, the unit may adversely effect
other equipment or vice versa.
11
3. Installation
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3.1 Installing the Main Display Unit
Mounting Location
•
As the signal cable may receive or generate noise, install the unit in a place that is free of
interference.
CAUTION !
Do not install the unit near DSB devices, amateur radio or their coaxial cables.
Mounting Procedure
(1) Disk Form type (NWW-65A)
•
The bracket is fixed by four tapping screws or bolts of M5.
•
Adjust the direction up and down and right and left of the Main Display unit to the best
viewing angle.
Figure 3.1 Adjustment best viewing angle
(2) Console mount type (NWW-65B)
•
The corner hole of 98×170mm is made for the panel, and the hole of dia-5mm is
made for four places.
•
It fixes from the back with M4 screw of 40mm in length.
1.
Screw M4 L=40mm
2.
Nut
3. Washer
4.
Spring washer
anel
Figure 3.2 Console mount
3. Installation
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3.2 Installing the Signal Distributor Unit
Mounting Location
•
As the signal cable may receive or generate noise, install the unit in a place that is free of
interference.
It vertically installs it in the wall so that the cable inlet may become it below.
•
Mounting Procedure
•
It fixes to the wall in four the M8 volts.
•
The earth cable is used and grounded from the cable clamper.
3.3 Installing the Signal Processor Unit
Mounting Location
•
The unit install in the distance that the transducer cable reaches.
Because the IP grade is IPX5, this unit is usually installed in boatswain’s store.
•
As the transducer cable may receive or generate noise, install the unit in a place that is
free of interference. Usually, it covers the cable with the piping of the exclusive use from
the transducer to the signal processor.
•
It vertically installs it in the wall so that the cable inlet may become it below.
Mounting Procedure
•
It fixes to the wall in four the M8 volts.
•
The earth terminal is used and grounded the copper plate of 30mm or more in width.
3.4 Mounting the Transducer
Mounting Location
•
This equipment measures the speed of the ship by using the ultrasonic wave.
To cause attenuation and diffusion when the bubble influences the ultrasonic wave, this
equipment cannot measure an accurate speed of the ship.
CAUTION !
It is necessary to choose the place where the bubble is not generated when sailing,
and to install the transducer. The transducer is installed in place before 1/10 of the
ship’s lengths in the large vessel. Moreover, the transducer is installed in place
before it when there is bow-thruster.
Mounting Procedure
•
After the welding of tank ends, the transducer is installed. If the transducer is built into
the tank, after it is detached from the tank, and the tank is welded.
•
The tank is welded so that surface of transducer at the sailing may become within 2° for a
horizontal plane.
•
13
The tank is installed within 5° so that the bow mark may become parallel to the keel line.
3. Installation
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3.5 Connection Diagram
3. Installation
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4. Operation
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. Placing a heavy object onto, heating,
stretching or bending the cord may cause a fire or electrical shock.
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.
Do not turn on the power switch of the unit while the ship is on the shore. Otherwise,
the transducer may malfunction.
15
4. Operation
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4.1 Overview
When the setup operations described in Chapter 3 have been completed, turn on the power to start
operation. This chapter describes the basic flow of operations. The bold line boxes indicate user
operations.
Power ON
Turn on the power.
See Section 4.2
Initial screen
See Section 4.3
Self test
See Section 4.3
Display Data receive
Display Mode
selection
Contrast and
dimmer
Trip reset
Unit selection
( Use
PWR
OFF
key )
It will automatically change into the normal display in about 30 seconds.
The screen where it is made to display is selected.
See Section 4.4
( Use
MODE
key )
Adjust LCD contrast and LCD and key back lighting as required.
CONT
See Section 4.5
( Use
key )
DIM
The TRIP value is reset when pushing during long time.
See Section 4.6
( Use
key )
The unit of Speed is changes when pushing during long time.
See Section 4.7
( Use
MODE
key )
A set menu enters the mode.
Settings
Power OFF
See Section 4.8
( Use
+
CONT
DIM
key )
All current setting are saved. Turn off the power.
See Section 4.2
( Use
CLR
OFF
+
PWR
OFF
key )
4. Operation
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4.2 Turning the unit ON/OFF
• When
PWR
OFF
key is pushed for about 2 seconds or more, the power turns ON and the buzzer sound
‘ pi ‘ rings.
• When
CLR
OFF
key and
PWR
OFF
key are pushed at the same time, the power turns OFF.
4.3 Initial screen / Self test
When the power is turned ON, the initial screen is
Doppler
JRC
displayed.
The self test is executed and ‘ Main/Int Ok ’ is displayed
if a problem is not found.
JLN-205
After the initial screen is displayed for about 8 seconds,
the screen disappears but after about 30 seconds it
LOG
R. 1.00
automatically goes back to the normal screen.
Main / Int OK
Figure 4.1 Initial Screen
4.4 Normal screen
Next, explains the screen by using display item.
WT : Water Tracking speed.
WT . Speed
: The oval rotates to indicate that it is receiving
12.3
Odo
Trp
the shown data.
: Fore speed ( Colored indicates effective)
: After speed
kn
: Measured speed
th
( The 10 digit zero suppressed. )
12345.67nm
12345.67nm
Figure 4.2 Normal screen 1
: Speed unit (See Section 4.8 )
Odo : Total distance
th
(The 10 digit or more is zero suppressed.)
Trp : Trip distance
th
(The 10 digit or more is zero suppressed.)
Total distance counter is used to calculate the total run distance of the whole journey.
Trip distance counter is used to calculate the distance of each individual segments between the
points.
When turned on, after Odo and Trp displays 00000.00nm for a few seconds, displays Odo and Trp
are displayed which was displayed before turning off the display.
17
4. Operation
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• The screen changes whenever the
MODE
key is pushed.
WT . Speed
WT . Speed
12.3
Odo
Trp
kn
12345.67nm
12345.67nm
Odo
Trp
12.3
KeyAssign
MOD+PUS=MENU PUSH/L=Trp→0
MODE/L=UNIT
CLR=AlarmOff
Figure 4.3 Normal screen 1
Figure 4.7 KeyAssign screen 1
WT . Speed
WT . Speed
12.3
Odo
kn
12345.67nm
12345.67nm
kn
12345.67nm
Odo
12.3
12345.67nm
KeyAssign
MOD+PUS=MENU
MODE/L=UNIT
Figure 4.4 Normal screen 2
kn
CLR=AlarmOff
Figure 4.8 KeyAssign screen 2
WT . Speed
WT . Speed
12.3
kn
12.3
kn
KeyAssign
MOD+PUS=MENU
MODE/L=UNIT
CLR=AlarmOff
Figure 4.5 Normal screen 3
Figure 4.9 KeyAssign screen 3
WT . Speed
WT . Speed
12.3
kn
Figure 4.6 Large character screen
Odo
12345
.67nm
Trp
12345
.67nm
15
10
5
.8
0
20
.0
.6
34
25
.2
30
.4
40
35
kn
12.
Figure 4.10 Graphic screen
4. Operation
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4.5 Adjusting Contrast and Back Lighting
This function adjusts LCD contrast and LCD and key back lighting for the display.
CONT
DIM
(1) Push
WT . Speed
Indicates a menu for changing the contrast
and back lighting.
The present set value is shown in reversed
character.
DIM : back lighting can be changed.
DIM: 5 ( LCD and back lighting key )
12.3
Menu
DIM 0 1 2 3 4 5 6 7kn8 9
Odo
m
CNT 01122334455. 6 7 8n 9
Trp
12345.67nm
KeyAssign
PUSH=CNT
ROT=Adjust
CNT: 3 ( LCD contrast )
CLR=RET/Exit
CLR=AlarmOff
Figure 4.11 Adjusting DIM
DIAL
(2) Turn
to select the desired back lighting.
Setting range for back lighting : 0 to 9 ( Brighter when the numerical value is large. )
CLR
Push OFF to end the setting menu.
PUSH
(3) Push
WT . Speed
to make t the contrast possible to
change.
12.3
Menu
DIM 0 1 2 3 4 5 6 7kn8 9
CNT 01122334455. 6 7 8n 9
Odo
m
Trp
12345.67nm
KeyAssign
PUSH=DIM
ROT=Adjust
DIAL
(4) Turn
to select the desired contrast.
CLR=RET/Exit
CLR=AlarmOff
Figure 4.12 Adjusting CNT
Setting range for contrast : 0 to 9
(Enlarge the numerical value when seeing from the upper surface of LCD. )
PUSH
Push
CLR
OFF
(5) Push
again to change the back lighting again.
or wait for 1 minute to return to the previous screen.
4.6 Trip Distance Reset
Resetting the Trip Distance.
PUSH
Push
for a while.
A buzzer sound ‘ pi ‘ rings first, then sound ‘ pi pi ‘ rings.
*****.**nm → 0.00nm
This function is effective only on the screen where Trip Distance is displayed.
19
4. Operation
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4.7 Vessel Speed Unit
Push
MODE
for a while.
A buzzer sound ‘ pi ‘ rings first, then sound ‘ pi pi ‘ rings.
The unit of the ship’s velocity changes alternately whenever this operation is done.
kn (default ) ↔ m/s
1 [m/s] = ( 1852m ÷ 3600sec ) × 1[kn]
4.8 Menu Setting
Setting Item ‘Alarm, Click, WT/GPS, Smooth, HiSpeed, LowSpeed’.
PUSH
(1) Push
and
CONT
DIM
key at the same time to display the Menu Setting screen.
WT . Speed
This operation displays the screen for the menu
setting. It returns to the previous screen when
nothing is done for about 1 minute.
Alarm: on/off for system warning system
Click : on/off for buzzer ( can be changed )
WT/GPS: selecting WT or GPS speed
Smooth: setting the average time
In addition, when scrolled,
MENU
Alarm
C l iI c k
kn
WTT//G
GPPSS
W
Odo
12345.67nm
Smooth
Trp
12345.67nm
12.3
KeyAssign
ROT=Select
PUS=Enter
HiSpeed : setting an alarm for upper speed limit.
CLR=RET/Exit
CLR=AlarmOff
Figure 4.13 Menu Setting
LowSpeed: setting an alarm for lower speed limit.
DIAL
(2) Turn
to select the Menu.
Turn the dial counter clockwise to scroll downward and turn it clockwise to scroll upward.
The selected item blinks.
PUSH
(3) Push
to selected item.
WT . Speed
(3-1) Alarm : ON/OFF for system warning
alarm sound.
DIAL
Turn
to select Off or On.
The selected item blinks.
Off: Warning alarm sound off.
12.3
Menu
kn
On
A l a r m Off
On
Odo
12345.67nm
Trp
12345.67nm
KeyAssign
ROT=Change
On : Warning alarm sounds on. ( default )
CLR=RET/Exit
CLR=AlarmOff
Figure 4.14 Alarm Setting
Push
CLR
OFF
to return to the Menu Setting screen.
After setting, push
CLR
OFF
key again to return to the normal screen.
4. Operation
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Under the following condition, a warning message and a warning sound generate.
( Warning sign is not related to the Alarm Setting, and will be displayed. )
•
When you reach the condition of HiSpeed and LowSpeed limit. (See 3-5)
•
When the state of the reception signal is bad, and the vessel speed cannot be computed.
•
When there is a problem in the system.
Please refer to Section 4.9 "Warning display" for more details of warning.
(3-2) Click : Selecting ON/OFF for the operation sound.
DIAL
Turn
WT . Speed
to select Off or On.
The selected item blinks.
Off: Buzzer sound off.
On : Buzzer sound on. ( default )
12.3
Menu
kn
On
C l i c k Off
On
Odo
12345.67nm
CLR
Push OFF to return to the Menu Setting screen.
CLR
To end the menu, push OFF key again to return
Trp
12345.67nm
KeyAssign
ROT=Change
to the normal screen.
CLR=RET/Exit
CLR=AlarmOff
Figure 4.15 Click Setting
(3-3) WT/GPS : Selecting the vessel speed display.
DIAL
Turn
WT . Speed
to select WT or GPS.
The selected item blinks.
WT: WT speed is displayed. ( default )
GPS: GPS speed is displayed.
(It is necessary to connect the GPS receiver.)
Push
CLR
OFF
12.3
Menu
kn
WT GPS
Mode
Odo
12345.67nm
Trp
12345.67nm
to return to the Menu Setting screen.
To end the menu, push
CLR
OFF
KeyAssign
ROT=Change
key again to return
to the normal screen.
CLR=RET/Exit
CLR=AlarmOff
Figure 4.16 Mode Setting
(3-4) Smooth : Setting the Averaging time of WT speed
The averaging time to enable the measurement
and display of vessel speed is set.
If a large value is set, the tracking time becomes
long though the display speed is steady.
( default : 010 )
DIAL
Turn
to select the digit and the
available digit is shown in the reversed character.
PUSH
Push
WT . Speed
12.3
Menu
kn
Damping
0 1 0 [S]
Odo
12345.67nm
Trp
12345.67nm
KeyAssign
ROT=Select
PUS=Enter
CLR=RET/Exit
CLR=AlarmOff
to fixed. The selected item blinks.
Figure 4.17 Damping Setting
21
4. Operation
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DIAL
Turn
to set a number from 0 to 9. Push
DIAL
Also, when another digit is changed, turn
To end the Average time setting, push
CLR
OFF
CLR
OFF
to fix the number.
to select digit to change.
to return to the Menu Setting screen.
CLR
OFF
To end the menu, push
key again to return to the normal screen.
The useful range is 0-240. However, the range of 0-120 is usually used. ( default : 010 )
(3-5) HiSpeed : Vessel speed alarm ( Upper Limit )
Setting vessel speed alarm to upper speed limit. When the vessel speed becomes more than the
set value, the warning sound and the warning message are displayed. ( default : 00.0 )
WT . Speed
DIAL
Turn
to select the digit to change.
The available digit is shown in the reversed
character.
Push
12.3
Menu
kn
2 0 . 0 [kn]
Hi =
Odo
12345.67nm
Trp
12345.67nm
PUSH
to change.
The selected number blinks.
DIAL
Turn
Push
KeyAssign
ROT=Select
PUS=Enter
to select the numerical from 0 to 9.
CLR
OFF
CLR=RET/Exit
CLR=AlarmOff
to change the numerical value.
Figure 4.18 HiSpeed alarm Setting
DIAL
In addition, when another digit is changed, turn
to select the digit.
CLR
OFF
To end the vessel speed alarm setting, push
to return to the Menu Setting screen.
CLR
To end the menu, push OFF key again to return to the normal screen.
The useful range of the setting is 0-40. Minus cannot be set. ( default : 00.0 )
When the set value is 00.0, means that the vessel speed alarm is Off.
(3-6) LowSpeed : Vessel speed alarm ( Lower Limit )
Setting vessel speed alarm to lower speed limit. When the vessel speed becomes slower than
the set value, the warning sound and the warning message are displayed. ( default : 00.0 )
DIAL
WT . Speed
Turn
to select the digit to change.
The available digit is shown in the reversed
character.
PUSH
Push
to change. The selected number
blinks. DIAL
Turn
Push
to select the numerical from 0 to 9.
CLR
OFF
to change the numerical value.
12.3
Menu
kn
Low =
0 1 . 0 [kn]
Odo
12345.67nm
Trp
12345.67nm
KeyAssign
ROT=Select
PUS=Enter
CLR=RET/Exit
CLR=AlarmOff
In addition, when another digit is changed,
DIAL
turn
to select the digit.
To end the vessel speed alarm setting, push
Figure 4.19 LowSpeed alarm Setting
CLR
OFF
to return to the Menu Setting screen.
4. Operation
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To end the menu, push
CLR
OFF
key again to return to the normal screen.
The useful range of the setting is 0-40. Minus cannot be set. ( default : 00.0 )
When the set value is 00.0, means that the vessel speed alarm is Off.
4.9 Warning message
This equipment is always monitoring the vessel condition. One like when vessel speed reaches the
upper and lower speed limit. Second, like when the state of the reception signal is bad, and the
vessel speed cannot be computed. Third, when there is a problem in the system of the equipment.
When a problem is found, a warning message will be displayed on the LCD screen. This warning
message cannot be erased. A warning sound rings too, when the setting of Section 4.8(3.1 Alarm)
is set to "On".
No
1
The following are the table of the warning message, the condition which warning
is generated, and the possible cause.
Warning message
Condition which warning is generated
Possible cause
Speed Lost
The degrade of signal reception and
Vessel speed cannot be operated.
increase of noise. Bubble took place
on the surface of the transducer.
2
Hi Speed
Vessel speed is more than the set value.
---
3
Low Speed
Vessel speed is lower than the set value.
---
4
NG:URT Data Lost The self test data cannot be obtained.
The software version between NQA
and NJC unit doesn’t match.
5
NG:Disp RxT Data The indicator cannot obtain the display The communication between the
data.
equipments is defective.
6
NG:Proc RxT Data
A measurement condition is not set to the The communication (receiver) error
processor.
7
NG:Tmnl TxD TB
There is no display data to the indicator, The communication (transmitter)
in the terminal of the distributor.
8
NG:Tmnl TxD Pin
of the NJC.
error of the NQA.
There is no display data to the indicator, The communication (transmitter)
in the distributor.
error of the NQA, The NWW or
NJC is defective.
9
NG:Tmnl RxD Pin
The display signal from the indicator The communication (transmitter)
cannot reach the distributor.
error of the NWW. The communication (receiver) error of the NQA.
10
11
12
NG:Tmnl TxP Pin
NG:Tmnl TxP TB
NG:Tmnl RxP Pin
There is no signal to the processor, in the
The communication (transmit) error
distributor.
of the distributor.
There is no signal to the processor, in the
The communication (transmitter)
terminal of the distributor.
error of the NQA.
The signal from the processor cannot The communication (receiver) error
reach the distributor.
of the NQA.
Warning message No.4-12 will be displayed by the following word "- System Error -".
When there is more than 5 warning from warning message No.4-12, there will be a message in the lower part
of the screen “too many errors".
23
4. Operation
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5. Detail Setting
This section is set to confirm the operation in detail, after "Installation" in Section 3.
This operation is not needed when there is no change in the connection etc.
5.1 Initial operation of Detail Setting
The detail setting cannot be operated if the following procedure is not executed to
prevent miss-operation.
•
When
PWR
OFF
key is pushed for about 2 seconds or more, the power turns ON and the buzzer
sound ‘ pi ‘ rings.
•
CLR
OFF
When "Figure 4.1 initial screen" is displayed, push
key for a long time until the buzzer
sound ‘ pi pi ‘ rings.
V.--.--- will be displayed on the lower left of the screen.
This screen entered a mode which is able to set detail
Doppler
JRC
This screen will automatically change into the normal
JLN-205
screen in about 30 seconds.
This mode is effective until turning off power.
LOG
CAUTION !
By operating like mentioned above, and the time
V.10.10M
Main / Int OK
Figure 5.1 Initial screen of Detail Setting
pushing the
CLR
OFF
key is too short, and the buzzer
sound 'pi' rings only once, the screen disappears
temporarily but this is not a trouble on the equipment.
Wait for about 30 seconds or push
CLR
OFF
key and the
screen goes back to the normal screen.
5.2 Detail setting
In addition to Section 4.8 "Menu setting", will set specification of the parameter output, and the
detail of the dummy output etc.
PUSH
(1) Push
and
CONT
DIM
key at the same time to display the detail setting menu.
It returns to the normal screen if nothing is operated for 1 minute.
The following operation method is the same as Section 4.8 "Menu setting" so refer to it.
(2) Set by the detail setting menu table on the next page.
5. Detail Setting
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JLN-205 Speedlog Instruction Manual
Item
Menu
Setting default
Unit
Function
1 Alarm
Alarm
Off
On
---
On/Off for warning sound
Same
2 Click
Click
Off
On
---
On/Off for operation sound
Section 4.8.
3 WT/GPS
Mode
WT
GPS
---
Display mode of vessel speed
It is possible to
set from either
menu.
4 Smooth
Damping
0
0
[S]
GPS receiver is necessary
Average time: 10 to 240S
5 HiSpeed
Hi
0 0 . 0
[kn]
Upper speed alarm:0 to 40kn
1
as
the
‘00.0’ means alarm Off
6 LowSpeed
Low
0 0 . 0
[kn]
Lower speed alarm:0 to 40kn
‘00.0’ means alarm Off
7 Adjust
Correct
+ 0 0 . 0
[%]
Speed correction :-50.0 to +99.9%
‘+’ means the display speed increases
8 NMEA1
NMEA1
1.5
2.3
---
Out put Version of IEC61162-1:2000
9 NMEA2
NMEA2
1.5
2.3
---
NMEA 1 to 4
Out put Version of IEC61162-1:2000
NMEA 5 to 8
10
Puls1
Puls1
x100
02
Pulse rate of output：0 to 20x100P/nm
LOG 1,2
11
Puls2
Puls2
x100
02
Pulse rate of output：0 to 20x100P/nm
LOG 3,4
12
Puls3
Puls3
x100
00
Pulse rate of output：0 to 20x100P/nm
LOG Relay (‘00’ means output OFF)
13
14
Scale
MF-NO
30
Analog
FS2-MFNO
100
[kn]
---
15
MF-MI
FS2-MFMI
025
---
16
MF-WD
FS2-MFWD
015
---
17
LE-NO
FS2-LENO
005
---
18
LE-WD
FS2-LEWD
094
---
19
AVG
FS2-WTAVG
120
---
20
Odo
-- >
Odo ReSet
―
Scale adjust of Analog display:10 to 40kn
Do not change the set value.
This resets the Total distance.
PUS
Push
21
ReSet
Master
ReSet
―
for a long time. It returns by
CLR
OFF
.
After power is On, it is effective only for 1 minute.
This returns each menu setting to the default value.
Total distance is not reset by this operation.
PUS
Push
22
Txoff
TX
On Off
―
for a long time. It returns by
CLR
OFF
.
When turned OFF transmission stops. It returns On
by turning on power again. Use On normally.
23
Dummy
Dummy
Off 0 18
[kn]
The dummy speed is displayed except when turned
OFF. Everytime
PUS
is pushed, 18,36,40,-5,18kn is
displayed. The external output is the same. The
transmission is stopped when the dummy is
displayed. It returns Off by turning the power on
again. Use Off normally.
25
5. Detail Setting
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6. Maintenance
Do not check or repair in this unit. Please call our field representative or your nearest
JRC office for inspection and repair services. It causes it of a fire or electrical shock.
Do not remove the cover of this unit. Otherwise, you may touch a high-voltage part
and suffer from an electrical shock.
Turn off the power on/off switch, and turn off the power supply breaker when you do
the maintenance check of this unit. Otherwise, a fire, an electrical shock, or a failure
may occur.
Do not disassemble or modify this unit. Otherwise, a fire, an electrical shock, or a
failure may occur.
Do not any maintenance on the transducer while the ship is in the water. Doing so
may cause injury or water leakage to the ship.
In the event that you spill or drop any liquids or metals etc., turn off the unit, turn off
the power supply breaker, and contact your sales agent outlet or one of JRC 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 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.
Do not use an organic solvent such as thinner or benzine when you clean the surface
of the unit. For cleaning the surface, remove the dust and refuse and wipe with clean
dry cloth. Otherwise, the painting on the surface may be damaged.
6. Maintenance
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6.1 Daily maintenance
Do not remove the cover of this unit. Otherwise, you may touch a
high-voltage part and suffer from an electrical shock.
Turn off the power on/off switch, and turn off the power supply
breaker when you do the maintenance check of this unit. Otherwise, a
fire, an electrical shock, or a failure may occur.
Do not use an organic solvent such as thinner or benzine when you
clean the surface of the unit. For cleaning the surface, remove the dust
and refuse and wipe with clean dry cloth. Otherwise, the painting on
the surface may be damaged.
The life of the device depends on how daily maintenance and inspection are performed carefully.
To keep the device in the best condition at all times, it is recommendable to perform periodical
inspections constantly. Any failure in the device can be prevented before it occurs through such
inspections. Please perform the inspections shown in the table below periodically.
•
Remove stains from the panel face, knob, panel keys, top cover by wiping them lightly with
•
dry cloth.
Check knob, panel keys, loosening of the connector and starting the omission, and it
tightens correctly.
•
Check loosening and rattling of the screw bolt that is the fixation of the case, and
it tightens surely.
6.2 Troubleshooting for Malfunctions or Abnormalities
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 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.
When the following symptom exists, it is thought abnormality or the breakdown. Use is stopped at once.
27
•
The power supply doesn't enter.
•
Nothing is displayed on the screen.
•
Smoke has risen from the units.
•
It smells strange.
•
It is abnormally hot.
6. Maintenance
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7. Consider Installation
Do not install this unit is exposed to direct sunlight for a long time or
the place where hot wind is hit or the temperature rises above 55 °C.
Doing so may cause a fire or a breakdown.
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 put this unit in the cabinet, and do not cover with the cardboard
etc. Heat shuts oneself up, and doing so may cause a fire or a
breakdown.
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.
Avoid the installation of those units in the following places.
Otherwise, a failure will occur or the life of the set will be shortened.
•
A place exposed to direct sunlight.
•
The temperature in the unit might rise, and it damages it.
A place exposed to water splash.
The units are not a complete waterproof construction. The IP grade of Section 1.3
"Components" is confirmed. Do not set it up in severe place more than grade.
It is likely to be flooded internally, and to damage it.
•
A place with poor ventilation
When the units are set up in the place where ventilation in the cabinet and the box, etc. is
bad, the power supply part and the transmission part might overheat, and be damaged
abnormally.
7. Consider Installation
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8. After-Sales Service
8.1 When ordering a repair
When a failure has been detected, stop operation and contact the dealer or agent from which you
purchased the device or one of our branches, marketing offices, and representative offices.
•
Repair during warranty period
Should a malfunction occur when the unit has been operated according to descriptions and
instructions in the instruction manual, it will be repaired free of charge. However, breakdowns
resulting from abuse, negligence, natural disaster, fire or other unforeseeable incident will be
charged.
•
Repair after warranty period
Repairs that restore normal operation made after the warranty period have to be paid in full by
the client.
•
Product data that should be provided when you ask for service
Name of product, model, date of manufacture and serial number
Description of malfunction (as detailed as possible)
Company address or name of organization, address and telephone number
8.2 Recommendation of overhaul
The performances of the set may deteriorate due to the aging of parts, and so on through the rate
varies depending on the conditions of use. So it is recommendable to contact the dealer from which
you purchased the device or one of our marketing offices for overhaul apart from daily service.
Incidentally, such overhaul will be performed with charge.
Please contact the dealer from which you purchased the device or our marketing office that is
nearest to you for any question as to the after-sales service.
29
8. After-Sales Service
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9. DISPOSAL
9.1 Disposal of the Equipment
Observe all local laws and regulations when disposing of those units.
The battery is not used for those units.
9. DISPOSAL
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10. SPECIFICATIONS
Operation system
: Dual - beam pulse Doppler system
Operation frequency
: 2MHz
Speed measurement range
: –10.0 to +40.0 kn
Run distance display range
: 0 to 99999.99nm
(However, NWW-7 of the option is 0 to 9999.99nm )
Water depth
: Relative speed to water of depth greater than 3 meters below hull bottom
Speed accuracy
: ±1% or ±0.1kn whichever value is greater
Distance accuracy
: ±1% or ±0.1nm in each hour whichever value is greater
Display
: Digital display
Speed unit = kn or m/s
: Analog display (option)
IEC61162-1 input
: GPS (for GPS speed display)
(Sentence ; $--RMC, $--RMA, $--VTG)
IEC61162-1 output
: NMEA0183 Ver. 1.5 or 2.3 -------------- 8 circuits
(Sentence ; $VDVBW, $VDVLW)
Other output
: Ship speed ---------------------------------- 2 circuits
DC voltage signal for analog display (-2VDC to +10VDC)
: LOG pulse ---------------------------------- 4 circuits
Opto-coupler signal (200 pulses/nm, 30V, 50mA max)
: LOG signal --------------------------------- 1 circuit
Relay closure signal (200 pulses/nm, 30V, 1A max)
: Slave display signal ----------------------- 2 circuits
: Distance signal ----------------------------- 1 circuit
: Remote display signal -------------------- 1 circuit
: On-line maintenance ---------------------- 1 circuit
: Power fail alarm --------------------------- 1 circuit
Relay closure signal (250V, 5A max)
Power supply
: 100/110/115/220/230VAC ±10%, 1φ, 50/60Hz, 100VA or less
Operating temperature range : –15 to +55°C
Operating humidity range
31
: +40°C, 93%
10. SPECIFICATIONS
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APPENDIX
1.
Remarks on Error resulting from deviation of radiation angle from the reference value
Hull movement causes deviation of radiation angle
from the reference value.
N1
N2
N
Through
the water
Generally, the dual beam shown in Fig. 11.1 a) is
often adopted in the Doppler Log in order to reduce
Through
the water
the error caused by various hull movements. The
following discusses this tolerance in comparison
a) Dual beam
Fig. 11.1 Doppler effect
with the single beam method.
1.1
Error caused by hull movement
The speed error caused by a deviation angle such as rolling and pitching is indicated by Fig.11.4.
An explanation how this is calculated is shown below.
(1) Vertical velocity
Only the velocity in the horizontal direction is important for ship. Vertical velocity is also caused
by swell and other factors, and appears in the form of an error.
When the horizontal velocity is assumed as U, as shown in Fig. 11.2, the Doppler shift frequency
fd1 with respect to beam N1 is expressed by the following equation 11.1.
fd1 =
2f0
(Vcos θ1 – Usin θ1)
C
(11.1)
Similarly, Doppler shift frequency fd1 with
respect to N2 is expressed by the following
equation 11.2.
fd2 =
2f0
(-Vcos θ2 – Usin θ2)
C
(11.2)
N2
Assuming that θ1 = θ2, we get (11.3) in the
N1
Through
the water
dual beam.
fd = fd1 – fd2 =
4f0V
cos θ1
C
(11.3)
Fi . 11.2 Effect of vertical velocit
The vertical velocity components cancel each other, without affecting the Doppler shift frequency.
Thus, the Doppler shift frequency is double that of the single beam method.
(2) Trim and heel
When there is an offset of δ with
respect to the vertical line as shown in
Fig. 11.3, the Doppler shift frequencies
N1
occurring to the beams N1 and N2 are
expressed by the following equations,
Through
the water
N2
respectively:
f'd1 =
2Vf0
(cos θ cos δ – sin θ sin δ)
C
Fig. 11.3 Vertical offset errors
APPENDIX
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f'd2 =
2Vf0
(cos θ cos δ + sin θ sin δ)
C
The error due to dual beam is obtained from Eq. 11.4.
εδ = 100 (cos δ – 1) %
(11.4)
The error in single beam method is expressed by Eq. 11.5.
ε'δ = 100 (cos δ + tan θ sin δ – 1) %
or ε'δ = 100 (cos δ – tan θ sin δ – 1) %
(11.5)
Thus, it can be seen that the error due to dual beam is always negative, independently of the beam
radiation angle.
The following calculate an error when an offset of 5° degrees has occurred:
ε δ = - 0.38 %
←JLN-205
ε'δ = -32.1 or –32.9 %
The dual beam has a smaller error than the
single beam method, and is therefore more
advantageous.
(3) Error due to pitching and rolling
When pitching and rolling have occurred, we
get the same result as when δ in Eq. 11.4 and
Eq. 11.5 is assigned with the following values:
Static error
Trim and heel
δ → δ (t) = δm sin ωt
δm = Maximum deflection angle
ω = Angular frequency of motion
Dynamic error
Roll and Pitch
The average Doppler shift frequency in dual
beam can be expressed by the following:
f'd = f'd1–f'd2
1
=
T
∫
ω
4Vf0
=
cos θ ⋅
C
2π
T
2
cos θ cos δ (t) dt
T
−
2
∫
π
ω
−
π
cos (δmsin ωt) dt
ω
=
4Vf0
J (δ )
C 0 m
Fig. 11.4 Errors due to dual beam vertical offset
(11.6)
The average error is obtained as follows:
ε δm = 100 {J0 (δm) –1}
(11.7)
The above-mentioned relationship is shown in Fig. 11.4.
33
APPENDIX
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2.
JLN-205 Speedlog Instruction Manual
Outline and Setting drawing
(1) NWW-65A MAIN DISPLAY (Desk form type)
m
m
:t
i
n
U
5
.
0
±
4
8
74±0.5
APPENDIX
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(2) NWW-65B MAIN DISPLAY (Console mount type)
m
m
:t
i
n
U
5
.
0
±
9
7
1
35
APPENDIX
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(3) NQA-4288 SIGNAL DISTRIBUTOR
m
m
:t
i
n
U
APPENDIX
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(4) NJC-25 SIGNAL PROCESSOR
g
k
6
m
m
:t
i
n
U
37
APPENDIX
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(5) NKF-547 TRANSDUCER
m
m
t:i
n
U
APPENDIX
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(6) NKF-531E TRANSDUCER (option)
m
m
:t
i
n
U
2
±
39
APPENDIX
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3.
JLN-205 Speedlog Instruction Manual
Spare Parts List
SHIP No.
SPARE PARTS LIST FOR
SET PER
USE
VESSEL
MODEL JLN-205
Doppler Log
QUANTITY
ITEM
NEME OF PART
No.
OUTLINE
1
Fuse
Fuse
Fuse
Fuse
MFR’S NAME
SET
VESS
2
.
5
.5
2
2
.
5
φ
20
4
PER
φ
20
3
PER
φ
20
2
WORKING
(Dimension in m/m)
20
.2
5
φ
JAPAN RADIO CO.,LTD.
REMARKS
DESCRIPTION
SPARE
MARK OF
BOX No.
1
2
3
2
1
2
1
2
DRW. No.
JRC CORD No.
SUB
MF51NR0.5
5ZFAA00147
250V A TSC2A
5ZFCA00118
215 3.15
5ZFAP00101
ULT SC 6.3AN1
5ZFCA00034
7ZXBS0020
APPENDIX
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