JRC JFE-400 User manual

Echo Sounder
INSTRUCTION
MANUAL

Safety Cautions
i
Safety Cautions 
Cautions for High Voltage
High voltages, ranging from several hundreds to tens of thousands of volts, are used in
electronic apparatus, such as radio and radar instruments. These voltages are totally harmless in
most operations. However, touching a component inside the unit is very dangerous. (Any person
other than authorized service engineers should not maintain, inspect, or adjust the unit.)
High voltages on the order of tens of thousand volts are most likely to cause instant deaths from
electrical shocks. At times, even voltages on the order of several hundred volts could lead to
electrocution. To defend against electrical shock hazards, don't put your hand into the inside of
apparatus.
When you put in a hand unavoidably in case of urgent, it is strongly suggested to turn off the
power switch and allow the capacitors, etc. to discharge with a wire having its one end positively
grounded to remove residual charges. Before you put your hand into the inside of apparatus,
make sure that internal parts are no longer charged. Extra protection is ensured by wearing dry
cotton gloves at this time. Another important precaution to observe is to keep one hand in your
pocket at a time, instead of using both hands at the same time. It is also important to select a
secure footing to work on, as the secondary effects of electrical shock hazards can be more
serious. In the event of electrical shocks, disinfect the burnt site completely and obtain medical
care immediately.
Precautions for Rescue of Victim
of Electric Shock
When a victim of electric shock is found, turn off the power source and ground the circuit
immediately. If this is impossible, move the victim away from the unit as quick as possible without
touching him or her with bare hands. He or she can safely be moved if an insulating material
such as dry wood plate or cloth is used.
It is necessary to perform first aid immediately.
Breathing may stop if current flows through the respiration center of brain due to electric shock. If
the electric shock is not large, breathing can be restored by artificial respiration. A victim of
electric shock looks pale and his or her pulse may become very weak or stop, resulting in
unconsciousness and rigidity at worst.

First Aid Method
ii
Emergency Measures 
Method of First-Aid Treatment
Precautions for First-Aid Treatments
Apply artificial respiration to the person who collapsed, minimizing moving as much as
possible avoiding risks. Once started, artificial respiration should be continued rhythmically.
(1) Refrain from touching the patient carelessly as a resultof the accident; the first-aider
could suffer from electrical shocks by himself or herself.
(2) Turn off the power calmly and certainly, and move the patient apart from the cable
gently.
(3) Call or send for a physician or ambulance immediately, or ask someone to call doctor.
(4) Lay the patient on the back, loosening the necktie, clothes, belts and so on.
(5) (a) Feel the patient's pulse.
(b) Check the heartbeat by bringing your ear close to the patient's heart.
(c) Check for respiration by bringing your face or the back of your hand to the patient's
face.
(d) Check the size of patient's pupils.
(6) Opening the patient's mouth, remove artificial teeth, cigarettes, chewing gum, etc. if
any. With the patient's mouth open, stretch the tongue and insert a towel or the like into
the mouth to prevent the tongue from being withdrawn into the throat. (If the patient
clenches the teeth so tight that the mouth won't open, use a screwdriver or the like to
force the mouth open and then insert a towel or the like into the mouth.)
(7) Wipe off the mouth to prevent foaming mucus and saliva from accumulating.

Safety Cautions
iii
Treatment to Give When the Patient Has a
Pulse Beating but Has Ceased to Breathe
Performing mouth-to-mouth artificial respiration
(1) Bend the patient's face backward until it is directed to look back. (A pillow may be
placed under the neck.)
(2) Pull up the lower jaw to open up the airway. (To spread the airway)
(3) Pinching the patient's nose, breathe deeply and blow your breath into the patient's
mouth strongly, with care to close it completely. Then, move your mouth away and
take a deep breath, and blow into his or her mouth. Repeat blowing at 10 to 15 times
a minute (always with the patient's nostrils closed).
(4) Continue artificial respiration until natural respiration is restored.
(5) If the patient's mouth won't open easily, insert a pipe, such as one made of rubber or
vinyl, into either nostril. Then, take a deep breath and blow into the nostril through
the pipe, with the other nostril and the mouth completely closed.
(6) The patient may stand up abruptly upon recovering consciousness. Keep the patient
lying calmly, giving him or her coffee, tea or any other hot drink (but not alcoholic
drink) to keep him or her warm.
Mouth-to-mouth artificial respiration with the patient's head lifted
[1] (1) Lift the back part of the patient's
head. Support the forehead with one
of your hand and the neck with the
other hand.[1].
Many patients will have their airways
opened by lifting their head in this
way to ease mouth-to-mouth
artificial respiration.
[2]
(2) Closing the patient's mouth with your
mouth, press your cheek against the
patient's nose[2].
Alternatively, hold the patient's nose
with your finger to prevent air leak
[3].
[3]
(3) Blowing air into the patient's lungs.
Blow air into the patient's lungs until
chest is seen to rise. The first 10
breaths must be blown as fast as
possible.
Fig. 1 Mouth-to-mouth artificial respiration

First Aid Method
iv
First Aid Method
Flow of Cardiopulmonary Resuscitation (CPR)
A person is collapsing.
- Secure the safety of the surrounding area.
- Prevent secondar
y
disasters.
Check for response.
- Call while tapping the shoulder.
Breathing
Recovery position
- Lay the injured or
ill person on
his/her side and
wait for the arrival
of the emergency
services.
Not responding or indeterminate state
Ask for help.
- Make an emergency call.
- Ask to bring an AED.
Listen to the appeal of the
injured or ill person and give
the necessary first-aid
Responding
Chest compressions
- With each compression, depress the chest
wall to a depth of approximately 5 cm.
- Perform compressions at the rate of 100 -
120 times per minute.
Combination of chest compressions and
rescue breaths Note(1)
- If the first-aider is not trained in rescue
breaths, he/she should perform only chest
compressions. See Note(1) for the details.
Note(1) Combination of chest compressions and
rescue breaths
- If the first-aider is not trained in rescue breaths,
he/she should perform only chest compressions.
- If the first-aider is trained in rescue breath, and has
the skill and will to do it, he/she should perform the
combination of chest compressions and rescue
breaths at the ratio of 30:2. If there is a fear of
infection, he/she should use a personal protective
equipment (mouthpiece for rescue breathing).
Check for breathing and judge cardiac arrest.
- Check for breathing.
Arrival of an AED
- Turn on the power.
- Use the AED by following its voice prompts.
Fitting of the electrode pads, etc.
Automatic electrocardiogram
analysis
- Do not touch the injured or ill
person.
Electric shock is needed.
Electric shock is not needed.
Delivery of electric shock
Resume CPR from chest
compressions by following the
voice prompts of the AED.
When the injured or ill
person has been
handed over to the
emergency services or
has started moaning or
breathing normally, lay
him/her on his/her side
in a recovery position
and wait for the arrival
of emergency services.
When to
stop CPR
A person is collapsing.
- Secure the safety of the surrounding area.
- Prevent secondar
y
disasters.
The AED
automatically
analyzes the
heart rhythm
every 2 min.
If you call an ambulance, you can get instructions regarding
how to judge cardiac arrest and how to do cardiopulmonary
resuscitation (CPR).
Not breathing or indeterminate state

First Aid Method
v
Specific Procedures for Cardiopulmonary Resuscitation (CPR)
1. Check the scene for safety to prevent secondary disasters
a) Do not touch the injured or ill person in panic when an accident has occurred. (Doing so may
cause electric shock to the first-aiders.)
b) Do not panic and be sure to turn off the power. Then, gently move the injured or ill person to a
safe place away from the electrical circuit.
2. Check for responsiveness
a) Tap the shoulder of the injured or ill and shout in the ear saying,
"Are you OK?"
b) If the person opens his/her eyes or there is some response or
gesture, determine it as "responding." But, if there is no response
or gesture, determine it as "not responding."
3. If responding
a) Give first-aid treatment.
4. If not responding
a) Ask for help loudly. Ask somebody to make an emergency call
and bring an AED.
• Somebody has collapsed. Please help.
• Please call an ambulance.
• Please bring an AED.
• If there is nobody to help, call an ambulance yourself.
5. Check for breathing
a) Look to see if the chest and abdomen of the injured or ill person are rising and falling.
b) If the injured or ill person is breathing, place him/her in the recovery position and wait for the
arrival of the emergency services.
• Position the injured or ill person on his/her side.
Are you OK?
Please call an
ambulance.
Please bring an AED.

First Aid Method
vi
6. Cardiopulmonary resuscitation (CPR) (combination of chest compressions and
rescue breaths)
a) Chest compressions
1) Position of chest compressions
• Position the heel of one hand in the center of the chest, approximately between the nipples,
and place your other hand on top of the one that is in position.
2) Perform chest compressions
Perform uninterrupted chest compressions of
30 at the rate of about 100 - 120 times per
minute, while locking your elbows positioning
yourself vertically above your hands.
• With each compression, depress the chest wall to a depth of approximately 5 cm.
b) Combination of 30 chest compressions and 2 rescue breaths
1) If the first-aider is not trained in rescue breaths, he/she should perform only chest
compressions.
2) If the first-aider is trained in rescue breath, and has the skill and will to do it, he/she should
perform 30 chest compressions, then give 2 rescue breaths.
3) If there is a fear of infection, he/she should use a personal protective equipment
(mouthpiece for rescue breathing).
4）Continuously perform the combination of 30 chest compressions and 2 rescue breaths
without interruption.
5) If there are two or more first-aiders, alternate with each other approximately every two
minutes (five cycles) without interruption.
Compress
with these
parts (the
heels of
both
hands).
30 times
2 times
CPR mask
Mouthpiece for rescue

First Aid Method
vii
7. When to stop cardiopulmonary resuscitation (CPR)
a) When the injured or ill person has been handed over to the
emergency services
b) When the injured or ill person has started moaning or breathing
normally, lay him/her on his/her side in a recovery position and wait
for the arrival of emergency services.
8. Arrival and preparation of an AED
a) Place the AED at an easy-to-use position.
If there are multiple first-aiders, continue
CPR until the AED becomes ready.
b) Turn on the power to the AED unit.
Depending on the model of the AED, you
may have to push the power on button, or
the AED automatically turns on when you
open the cover.
c) Follow the voice prompts of the AED.
9. Attach the electrode pads to the injured or ill person's bare chest
a) Remove all clothing from the chest, abdomen, and arms.
b) Open the package of electrode pads, peel the pads off and securely
place them on the chest of the injured or ill person, with the adhesive
side facing the chest. If the pads are not securely attached to the chest,
the AED may not function. Paste the pads exactly at the positions
indicated on the pads, If the chest is wet with water, wipe dry with a dry
towel and the like, and then paste the pads. If there is a pacemaker or
implantable cardioverter defibrillator (ICD), paste the pads at least 3
cm away from them. If a medical patch or plaster is present, peel it off and
then paste the pads. If the injured or ill person's chest hair is thick,
paste the pads on the chest hair once, peel them off to remove the
chest hair, and then paste new pads.
c) Some AED models require to connect a connector by following voice prompts.
d) The electrode pads for small children should not be used for children over the age of 8 and for
adults.
10. Electrocardiogram analysis
a) The AED automatically analyzes electrocardiograms. Follow the
voice prompts of the AED and ensure that nobody is touching the
injured or ill person while you are operating the AED.
b) On some AED models, you may need to push a button to analyze
the heart rhythm.
Turn on the power.

First Aid Method
viii
11. Electric shock (defibrillation)
a) If the AED determines that electric shock is needed, the voice
prompt saying, "Shock is needed" is issued and charging starts
automatically.
b) When charging is completed, the voice prompt saying, "Press the
shock button" is issued and the shock button flashes.
c) The first-aider must get away from the injured or ill person, make
sure that no one is touching him/her, and then press the shock
button.
d) When electric shock is delivered, the body of the injured or ill person may jerk.
12. Resurgence of cardiopulmonary resuscitation (CPR)
a) Resume chest compressions by following the voice prompts of the AED.
• With each compression, depress the chest wall to a depth of
approximately 5 cm.
• Perform compressions at the rate of 100 - 120 times per minute.
13. Automatic electrocardiogram analysis
a) When 2 minutes have elapsed since you resumed cardiopulmonary resuscitation (CPR), the
AED automatically analyzes the electrocardiogram.
b) If you suspended CPR by following voice prompts and AED voice prompt informs you that
shock is needed, give electric shock again by following the voice prompts.
If AED voice prompt informs you that no shock is needed, immediately resume CPR.
14. When to stop CPR (Keep the electrode pads on.)
a) When the injured or ill person has been handed over to the emergency services
b) When the injured or ill person has started moaning or breathing normally, lay him/her on his/her
side in a recovery position and wait for the arrival of emergency services.
Press the shock button.

General Information
ix
General Information
Thank you for purchasing the JFE-700 Echo-Sounder manufactured by Japan Radio Co.,
Ltd. The JFE-700 conforms to the IMO (International Maritime Organization) performance
standards, enabling seabed displays and digital depth displays.
Before attempting to operate this equipment, please 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.

Before You Begin
x
Before You Begin
Symbols Used in This Manual
To ensure that the equipment is used safely and correctly, and that the operator and third
parties are not exposed to danger or damage, pictograms are used in this manual and on the
equipment itself. These pictograms are described below.
Please familiarize yourself with these pictograms and the meanings they convey before
reading the rest of the manual.
Failure to observe a warning indication, leading to incorrect handling, may result in death or
serious injury to the operator.
Failure to observe a caution indication, leading to incorrect handling, may result in injury to
the operator, or physical damage to the equipment.
Example Pictograms
This mark is intended to alert the user to the presence of precautions including
danger and warning items. The picture in each mark alerts you to operations that
should be carefully performed.
This mark is intended to alert the user to the presence of prohibited activity. The
picture/word in/beside each mark alerts you to operations that are prohibited.
This mark is intended to alert the user to the presence of necessary instructions.
The picture in each mark alerts you to operations that must be performed.
Warning Labels
Warning labels are affixed to the cover of Echo sounder
body.
High voltage circuit exists inside the cover. Do not remove
the cover.
Do not attempt to remove, damage, or modify, the warning
labels.

Usage Hints
xi
Usage Hints
Do not remove the cover of this set. Otherwise, you
may touch a high-voltage part and suffer from an
electrical shock.
Do not dismantle or modify this equipment. Failure to
observe this warning may result in fire, electric shock, or
damage.
Do not place any vessels containing water or other
liquids, or metal objects, on top of this equipment. If
water is spilled on or metal objects fall into the equipment
there is a risk of fire, electric shock, or damage.
Do not insert or remove the power cord or operate
switches with a wet hand.
Otherwise, you may suffer from an electrical shock.

Usage Hints
xii
Do not damage, break or modify the power cord.
When a heavy object is placed on the cord or the cord is
heated, pulled, or forcibly bent, the cord will be broken
resulting in a fire or an electrical shock.
Do not use this set at a voltage other than the supply
voltage stated on the set.
Otherwise, a fire, an electrical shock, or a failure may
occur.
In the event of water of metal objects falling inside the
equipment, immediately turn off the power switch, then
contact JRC or its agent.
There is a risk of file or electric shock if you continue to
use the equipment.
If you notice smoke, unusual smells, or abnormal heat
coming from the equipment, immediately turn off the
power switch, then contact JRC or its agent.
There is a risk of fire, electric shock, or damage if you
continue to use the equipment.
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.
Use only the specified fuses.
The use of other fuse may cause fire and/or damage.
The Main switch on the CQD-2348 I/F unit must be turned off during replacing a
fuse.

Usage Hints
xiii
Please contact JRC or its agent for the electrical
installation of this equipment. Electrical installations
carried out by other than the qualified staff may result in
faulty operation.
Do not store or operate the equipment where subject to
temperatures more than 55℃or less than -15℃. High
temperature may cause failures.
Do not install the equipment on unstable or unleveled
surfaces. Failure to observe this condition may result in
the equipment falling or toppling over, resulting in injury.
If it is cold, do not move the equipment suddenly into a
warm environment and switch it on. High-voltage leaks
due to condensation may result in damage to the
equipment. In such situations, leave the equipment in
the warm environment for about 30 minutes before
switching it on.
When installing the equipment, securely connect the
earth lead to the earth terminal. Failure to connect the
earth may result in electric shock in the event of a fault or
power leak developing.
GND
Do not turn on the equipment's power when the ship is in
dry docks.
Failure to observe this caution may result in damage to
the transducer, etc.

Usage Hints
xiv
When removing the power cord, be sure to remove the
power cord terminal correctly.
If the power cord is pulled, the cord may be damaged
resulting in a fire or an electrical shock.
Do not install the units on the place being poor
ventilation.
Otherwise, the set that is heated may cause a fire or
failure.
For safety when the equipment is to be left unused for an
extended period, turn off the power switch.
When turning on the power, be sure not to press any operator panel key at the
same time. Alternates to the hardware configuration of the until could cause
the unit to malfunction.
Take care when laying the transducer cable, power cable, and earth lead as
positioning has an affect on electromagnetic interference. There is a risk of
interfering with other equipment or the echo-sounder being interfered with by
the other equipment.
After installing the echo-sounder, turn on the power to all other equipment to
check for interference with or from all the equipment. Interference may cause
malfunctions.
Handle the paper cutter carefully not to cut your hand. When optional printer is
Installed.

External View
xv
External View
NWZ-1650 Display unit with desktop kit (NPBX50347: optional)
NQA-4327 Processing unit

Explanation of Terms
xvi
Explanation of Terms
Beam angle: The angle that sound waves spread out from the transducer. Sound waves
spread out in a conical manner taking the center of the bottom surface of the transducer at
the apex of the cone.
Bubbling: The phenomenon where the image of the seabed is interrupted due to air bubbles
caused by the ship's hull or the propeller during a voyage.
CAM: Central Alert Management
IMO: abbreviation for the International Maritime Organization.
MED: abbreviation for the Marine Equipment Directive. This is the directive for marine
equipment in Europe. This directive unifies format approval standards implemented
separately by each European.
NMEA0183: formats for the National Marine Electronics Association. NMEA0183 is the
format used when sending or receiving depth, position, water temperature, ship speed and
other information between marine equipment.
STC: Sensitivity Time Control is used for reduce shallow water clutter. Shallow seabed
echo is strong and deep seabed echo is weak. So, the STC controls the sensitivity to
normalize seabed echo for precision seabed tracking.
Transducer: Device that emits ultrasonic waves in water and receives the signals reflected
off the seabed. This is equivalent to an antenna on a radio.
UTC: abbreviation for the Universal Time Coordinated.

Explanation of Terms
xvii
(Blank Page)

Contents
Safety Cautions ....................................................................................................................... i
Emergency Measures ............................................................................................................. ii
First Aid Method............................................................................................................................. iv
General Information ....................................................................................................................... ix
Before You Begin ............................................................................................................................ x
Usage Hints ................................................................................................................................... xi
External View................................................................................................................................ xv
Explanation of Terms ................................................................................................................... xvi
1. Introduction ...........................................................................................................................1-1
1.1 Function..............................................................................................................................1-1
1.2 Feature...............................................................................................................................1-1
1.3 Components .......................................................................................................................1-2
1.4 Construction .......................................................................................................................1-4
1.5 System Configuration .......................................................................................................1-11
2. Control Panel ........................................................................................................................2-1
3. Display Mode ........................................................................................................................3-1
3.1 Standard mode ...................................................................................................................3-1
3.2 History mode ......................................................................................................................3-2
3.3 Docking mode ....................................................................................................................3-3
4. Operation ..............................................................................................................................4-1
4.1 Basic Operation..................................................................................................................4-1
Turning Power ON/OFF ........................................................................................................4-1
Adjusting Control Panel Illumination [DIM+/DIM-] .................................................................4-1
Range Control [RANGE] .......................................................................................................4-1
Gain control [GAIN]...............................................................................................................4-2
Selecting Display Mode [MODE]...........................................................................................4-3
Draft control [DRAFT]............................................................................................................4-3
Displaying Menu [MENU]......................................................................................................4-4
Up and Down Key Cursor [CURSOR]...................................................................................4-4
Right and Left Key of Cursor [CURSOR] ..............................................................................4-5
4.2 Menu List............................................................................................................................4-6
Menu Tree.............................................................................................................................4-6
4.3 Display Setting ...................................................................................................................4-7
Selecting Image Scrolling Speed ..........................................................................................4-7
Noise Rejection.....................................................................................................................4-8
Interference Rejection...........................................................................................................4-8
Setting Cursor Display ..........................................................................................................4-9
Make the seafloor echo linear ...............................................................................................4-9
Setting Depth Display .........................................................................................................4-10
Switching the display color mode of the day and night screen............................................4-11
Switching latitude and longitude display .............................................................................4-11
4.4 Setting Depth Alert ...........................................................................................................4-12
4.5 Initial Setting.....................................................................................................................4-13
Change screen color...........................................................................................................4-13
Setting Adjustment of Date and Time..................................................................................4-15
Touch Panel Calibration ......................................................................................................4-17
DIMM Offset........................................................................................................................4-17