Furuno CSH-7 Manuel utilisateur

COLOR SCANNING SONAR

MODEL CSH-7

FIRST EDITION : MAY 1997

Your Local Agent/Dealer

FURUNO ELECTRIC CO

LT D

9-52, Ashihara-cho,

Nishinomiya, Japan 662

Telephone: 0798-65-2111

Telefax: 0798-65-4200

Printed in Japan

PUB. No. OME-13020

CSH-7

(DAMI)

iiiiiiiiiiiii i

SAFETY INSTRUCTIONS

Do not disassemble or modify the

equipment.

Fire, electrical shock or serious injury

can result.

Turn off the power immediately if water

leaks into the equipment or the equip-

ment is emitting smoke or fire.

Continued use of the equipment can cause

fire or electrical shock.

Do not place liquid-filled containers on

the top of the equipment.

Fire or electrical shock can result if a

liquid spills into the equipment.

Do not operate the equipment with wet

hands.

Electrical shock can result.

Keep heater away from equipment.

Heat can alter equipment shape and melt

the power cord, which can cause fire or

electrical shock.

Do not open the equipment.

Hazardous voltage which can

cause electrical shock, burn or

serious injury exists inside the

equipment. Only qualified

personnel should work inside

the equipment.

WARNING CAUTION

Use the proper fuse.

Use of a wrong fuse can result in fire or

permanent equipment damage.

Do not use the equipment for other than

its intended purpose.

Personal injury can result if the equipment

is used as a chair or stepping stool, for

example.

Do not place objects on the top of the

equipment.

The equipment can overheat or personal

injury can result if the object falls.

Do not exceed speed noted in the speci-

fications when operating the equipment

or lowering or raising the transducer.

The transducer may become damaged.

The zinc block attached near the

transducer must be replaced yearly.

The junction between the transducer and

main shaft may corrode, which can result

in loss of the transducer or water leakage

inside the ship.

POSSIBILITY OF INJURY

1. If breaker (hull unit) trips do the

following:

1) Turn off power swich on hull unit.

2) Wait 60 sec after breaker has tripped.

3) Press breaker.

2. Turn off hull unit before using hand

crank.

TABLE OF CONTENTS

FOREWORD

AWord to CSH-7 Owners ........................................................................................................v

Features..................................................................................................................................... v

System Configuration ..............................................................................................................vi

OPERATIONAL OVERVIEW

Equipment Overview.............................................................................................................1-1

Display Unit Control Panel Description ................................................................................1-2

Turning the Power On/Off.....................................................................................................1-2

Adjusting Screen Brilliance, Control Panel Backlighting .....................................................1-3

Lowering the Transducer .......................................................................................................1-3

Selecting a Display Range.....................................................................................................1-3

Setting the Tilt Angle.............................................................................................................1-3

Adjusting the Gain.................................................................................................................1-7

MARKERS AND DATA

Standard Markers and Data ...................................................................................................2-1

Optional Markers and Data....................................................................................................2-3

MENU OVERVIEW

Scan Menu Operation ............................................................................................................3-1

Menu-1, Menu-2, System Menu Operation...........................................................................3-4

FINE TUNING THE PICTURE

Eliminating Unwanted Feeble Echoes...................................................................................4-1

Displaying Surface Fish Clearly............................................................................................4-2

Suppressing Seabed Tail ........................................................................................................4-2

Suppressing Seabed and Sea Surface Reflections in Shallow Waters ...................................4-3

Rejecting Sonar Interference and Noise ................................................................................4-4

ADVANCED OPERATION

Measuring the Range and Bearing to a Target.......................................................................5-1

Detecting Fish SchoolsAurally .............................................................................................5-1

Relocating Fish School for Easy Observation .......................................................................5-2

Function Keys (F1, F2)..........................................................................................................5-3

Event Markers, Own Ship Event Markers.............................................................................5-5

iii

INTERPRETING THE DISPLAY

Seabed Echoes .......................................................................................................................6-1

Fish Schools...........................................................................................................................6-2

Sea Surface Reflections .........................................................................................................6-3

Wake ......................................................................................................................................6-3

False Echo by Sidelobe..........................................................................................................6-4

Noise and Interference...........................................................................................................6-4

MAINTENANCE

Display Unit Maintenance .....................................................................................................7-1

Hull Unit Maintenance ..........................................................................................................7-2

TROUBLESHOOTING

When the Transducer Cannot be Retracted ...........................................................................8-1

Diagnostic Tests.....................................................................................................................8-3

SPECIFICATIONS.......................................................................................................9-1

FOREWORD

A Word to CSH-7 Owners

Congratulations on your choice of the FURUNO CSH-7 Color Scanning Sonar. We are

confident you will see why the FURUNO name has become synonymous with quality and

reliability.

For over 40 years FURUNO Electric Company has enjoyed an enviable reputation for qual-

ity marine electronics equipment. This dedication to excellence is furthered by our exten-

sive global network of agents and dealers.

This equipment is designed and constructed to meet the rigorous demands of the marine

environment. However, no machine can perform its intended function unless operated and

maintained properly. Please carefully read and follow the recommended procedures for op-

eration and maintenance.

We would appreciate hearing from you, the end-user, about whether we are achieving our

purposes.

Thank you for considering and purchasing FURUNO equipment.

Features

The FURUNO CSH-7 Color Scanning Sonar is a full-circle, multibeam electronic scanning

sonar which detects and instantaneously displays fish schools and underwater conditions in

16 colors on a 10" non-glare, high resolution CRT screen. Its ease of operation, versatility

and compact size make it the perfect match for any class of fishing vessel.

The main features of the CSH-7 are

• Compact size permits installation on smaller fishing boats.

• Vivid 16-color display provides intuitive recognition of seabed and concentration, distri-

bution and volume of fish schools.

• Markers and indications keep the operator abreast of fishing conditions.

• Remote controller (option) provides for armchair control of gain, range and tilt functions.

• New gain, range or tilt setting appears in large characters whenever corresponding con-

trol is adjusted.

• Function keys automatically setup the equipment to perform specific task.

• High power MOS FET transmitter ensures reliable operation under any condition.

System Configuration

CSH-7040

TRANSCEIVER UNIT

RECTIFIER

RU-3424

100-115 VAC/

200-230 VAC

1φ, 50/60 Hz

Ship’s Mains

24 VDC

HULL UNIT

600 mm stroke

400 mm stroke

CSH-7030

CSH-7031

* Interface Module CSH-7050 (option)

required to connect external equipment.

DISPLAY UNIT

CSH-7010

(*)

NAVIGATOR

CURRENT INDICATOR

GYROCOMPASS

SPEED LOG

TILT RANGE

GAIN

(Option)

REMOTE

CONTROLLER

CSH-7020

1-1

OPERATIONAL OVERVIEW

Equipment Overview

All operations of the CSH-7 are carried out through the display

unitandthe remote controller(option). Theuncluttered,straight-

forward control panel of the display unit provides intuitive op-

eration.Ifyou changeacontrol setting you willsee the associated

reaction on the display almost immediately.

The handy remote controller provides armchair control of range,

gain and tilt functions.

OFF 010

BRILL

GAIN

TILT

EVENT OFF

CENTER

F1 F2

COLOR SCANNING SONAR CSH-7

– +

BRILL

control

POWER

switch

RANGE

DIMMER AUDIO

DIMMER

control AUDIO

control

Trackball

Control

panel

TILT RANGE

GAIN

Figure 1-1 Display unit, Remote controller

1-2

Display Unit Control Panel Description

GAIN

TILT

MENU F1 F2

– +

cTurns transmitter on/off; freezes the display. The lamp above the switch

lights when the transmitter is turned on and flickers when off.

Selects a picture display range. Also functions to select items on menu

screens. Note that this control turns endlessly in both directions.

RANGE

Adjusts receiver sensitivity. Adjust for clear presentation of fish echoes.

Also functions to change settings on menu screens.

Tilts the sounding beam between 0° and 55°. The current angle always

appears on the screen.

EVENT OFF

CENTER

Opens/closes the menu.

Function keys; execute assigned program when activated.

The lamp above a key lights when function is activated.

Inscribes/deletes an event marker.

Draws straight line, called bearing marker, from own ship position toward

the trackball marker and simultaneously draws a circle (range marker) with

a radius being the distance between the own ship marker and trackball

marker. Range and bearing data of the intersection of the two markers are

dislayed at the bottom of the screen. To turn off the range and bearing

markers, move the trackball mark near the own ship position and press

the R/B key.

Shifts screen center to cursor location.

Raises, lowers the transducer, respectively. Lamp above a key blinks

while the transducer is moving and lights when it stops.

Figure 1-2 Control panel description

Turning the Power On/Off

Power on

Press the power switch at the lower left corner of the display

unit to turn the power on/off. When the display unit is turned on

it checks itself for proper operation. (This test is described in

Chapter 8.)

Power off

Press the cswitch to retract the transducer. Wait until the lamp

above the switch lights and then press the power switch to turn

off the system.

Note:The transducer is automaticallyretracted into thetank even

if the power switch is pressed before retracting the transducer.

However, make it a habit to retract the transducer before turning

off the power.

1-3

Adjusting Screen Brilliance, Control Panel Backlighting

The BRILL control adjusts screen brilliance, and the DIMMER

control adjusts control panel backlighting.

Lowering the Transducer

Press the dswitch. The lamp above the switch blinks, and lights

when the transducer is fully lowered.

CAUTION

Do not exceed speed noted in the speci-

fications when operating the equipment

or lowering or raising the transducer.

The transducer may become damaged.

Do not press the cswitch during

lowering of the transducer, and do not

press the dswitch during raising of the

transducer.

The equipment may become damaged.

Selecting a Display Range

Operate the RANGE control to select a display range. The range

selected appears at the top center of the screen.

Setting the Tilt Angle

The tilt angle shows the direction to which the sound wave is

emitted. When the sound wave is emitted horizontally, the tilt

angle is said to be zero degrees and when emitted vertically, 90

degrees.

To set a tilt angle, operate the TILT lever. Watch the tilt angle

indication at the top right corner on the screen.The tilt angle can

be set in one-degree steps from 0 to 55 degrees.

Finding a proper tilt angle is important when searching for fish.

Below are tips for selecting tilt angle.

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