Furuno CSH-5 MARK-2 Manuel

COLOR SCANNING SONAR

CSH-5 MARK-2 Operator’s guide

Basic operation

1.PressthePOWERswitchonthemainpanel.

The lamp at the left of the switch lights.

2 . Press the TRANSDUCER “h“ key.

The lamp above the switch lights when the

transducer is fully lowered.

3 . Adjust the BRILLiance and CONTRAST

controls.

4 . Select a display range by RANGE switch

on the control box.

5 . Set a tilt angle by operating the TILTlever.

6 . Adjust the GAIN control.

Eliminating unwanted feeble

echoes (Adjusting TVG)

If the color changes suddenly to weaker col-

ors as the fish echo while it approaches, ad-

just the TVG NEAR and FAR.

1 . Press the MENU key .

2 . Rotate the RANGE switch to select TVG

NEAR or TVG FAR .

3 . Rotate the GAIN switch to set TVG near

or TVG far .

When sea surface reflections or plankton lay-

ers disturb the picture, adjust the NEAR con-

trolto eliminate them.They willbe eliminated

by decreasing the control setting by 1 or 2.

Suppressing seabed tail

Adjusting the AGC control

1. Ratate AGC control clockwise little by

little.

Adjusting PULSELENGTH

1 . Press the MENU key .

2 . Rotate the RANGE switch to select

PULSELENGTH .

3 . Rotate the GAIN switch to reduce the

PULSELENGTH(1:minimum, 10: maxi-

mum).

Suppressing seabed and sea

surface reflection in shallow

fishing

1 . Press the MENU key.

2 . Rotate the RANGE switch to select TX

OUTPUT.

3 . Rotate the GAIN switch to reduce the TX

OUTPUT (1: minimum, 10: maximum).

Rejecting sonar interface and

noise

Adjusting TX CYCLE

(To eliminate interference rings)

1 . Press the MENU key.

2 . Rotate the RANGE switch to select TX

CYCLE.

3 . Rotate the GAIN switch to reduce the TX

CYCLE (1: minimum, 10: maximum).

Adjusting the NOISE LIM control

Weak,unwantedreflections, colored light blue

or green due to contaminated, plankton lay-

ers or ship’s noise can be eliminated by the

NOISE LIM control.

The purpose of this operator’s guide is to provide the basic operating procedures for this equip-

ment. For detailed information, refer to the operator’ manual.

All manuals and user guides at all-guides.com

all-guides.com

Adjusting the IR control

Random noise or sea surface reflections in

rough sea conditions can be rejected by the

IR control. However, do not use an unneces-

sary high setting since it may also reject small

wanted echoes.

Measuring range and bearing

to a target

1 . Rotate theTRACKBALL to locate the cur-

sor on the fish echoes.

The range and bearing are displayed at the

left top on the screen.

Detecting fish schools aurally

1 . Rotate theTRACKBALL to locate the cur-

sor to the direction you want to monitor

through the speaker.

2 . Press the R/B key.

The bearing marker will appear in the di-

rection of the trackball mark and echoes

in that direction are monitored through the

speaker.

3 . If you want to cover a certain area, press

the SECTOR SCAN key.

The bearing marker automatically scans in

2°step.

Relocating fish school for

easy observation

1 . Rotate theTRACKBALL to locate the cur-

sor to the position where the own ship

mark is to be moved .

2 . Press the OFF CENTER key.

3 . To move the own ship mark back to the

center of the screen, press the OFF CEN-

TER key again.

Finding fish school center

1 . Press the MENU key.

2 . Rotate the RANGE switch to selectAUTO

TILT WIDTH.

3 . Rotate the GAIN switch to select a tilting

width.

4 . Press the TILT lever to set the center tilt

angle of the scanning.

5 . Read a tilt angle which fish echoes appear

at the strongest reflection.

Registering function key

(F1 or F2)

1 . Press the MENU key.

2 . Rotate the RANGE switch to select FUNC

KEY PROG line.

3 . Rotate the GAIN switch to select FUNC1

or FUNC2.

4 . Press the TX key.

Recalling the registered

function

1 . Press the F1 or F2.

The registered function is recalled.

2 . To cancel it, press the F1 or F2 again.

Changing menu setting

1 . Press the MENU key.

2 . Rotate the RANGE switch to select item

you want to change.

3 . Rotate the GAIN switch to set the con-

tents.

PUB.NO.OSE-12990-A

(9511,TATA) CSH-5 MARK-2

All manuals and user guides at all-guides.com

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