Introduction to FURUNO COLOR SCANNING SONAR OPERATOR'S MANUAL CSH-5L/CSH-8L :
Congratulations on your choice of the FURUNO CSH-5L/CSH-8L Color Scanning Sonar.
For over 50 years FURUNO Electric Company has enjoyed an enviable reputation for
innovative and dependable marine electronics equipment. This dedication to excellence is
furthered by our extensive global network of agents and dealers.
Your scanning sonar is designed and constructed to meet the rigorous demands of the
marine environment. However, no machine can perform its intended function unless
installed, operated and maintained properly. Please carefully read and follow the
recommended procedures for operation 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.
FURUNO COLOR SCANNING SONAR OPERATOR'S MANUAL CSH-5L/CSH-8L Table of Contents:
FOREWORD............................................................................................................. vi
SYSTEM CONFIGURATION.................................................................................... vii
1. OPERATIONAL OVERVIEW -1
1.1 Control Unit -1
1.2 Remote Controller (option) -2
1.3 Basic Operating Procedure -3
1.3.1 Turning on the power -3
1.3.2 Lowering the transducer -3
1.3.3 Transmitting -4
1.3.4 Adjusting backlighting of control unit -5
1.3.5 Choosing a display mode -6
1.3.6 Choosing the display range -8
1.3.7 Adjusting the gain -9
1.3.8 Retracting the transducer, turning off the power -9
1.4 Setting the Tilt Angle -10
1.4.1 Automatic tilt on/off -10
1.4.2 Bottom and tilt angle -12
1.4.3 How to discriminate fish echoes from the bottom -12
1.4.4 Points to consider -13
1.4.5 Tilt angle for surface fish -13
1.4.6 Suitable tilt angle -14
1.5 Finding Range and Bearing to a Target -14
1.6 Sonar Menu Overview -15
1.6.1 Operating procedure -15
1.6.3 Sonar menu description -16
2. FINE TUNING THE SONAR PICTURE -1
2.1 Eliminating Unwanted Echoes -1
2.2 Displaying Surface Fish Clearly -2
2.3 Suppressing Bottom Tail -2
2.3.1 AGC -2
2.3.2 Pulse length -3
2.3.3 2ND AGC -3
2.4 Suppressing Bottom and Sea Surface Reflections in Shallow Fishing Grounds -4
2.5 Rejecting Sonar Interference and Noise -5
2.5.1 Identifying noise source -5
2.5.2 Rejecting noise with the interference rejector -5
2.5.3 Rejecting noise with the noise limiter -5
2.5.4 Rejecting interference with TX cycle -6
2.6 Choosing Beamwidth -7
2.6.1 Horizontal beamwidth -7
2.6.2 Vertical beamwidth -7
2.7 Deleting Weak Echoes -7
2.8 Echo Averaging -7
iv
3. ADVANCED SONAR OPERATION -1
3.1 Tracking a Fish School (target lock) -1
3.2 Detecting Fish Schools Aurally -3
3.3 The Fish Alarm -4
3.4 Measuring Fish School Speed -5
3.4.1 Entering a fish mark -5
3.4.2 Deleting individual fish marks -6
3.5 Relocating Fish School for Easy Observation -6
3.6 Event Mark, Own Ship Position Mark -7
3.6.1 Event mark -7
3.6.2 Entering an own ship position mark -8
3.6.3 Deleting an event mark -8
3.7 Collectively Deleting Marks -9
3.8 Function Keys (F1-F4) -10
3.8.1 Operating the function keys -10
3.8.2 Programming for fishing ground or target fish -10
3.8.3 Programming specific function -11
3.8.4 Confirming function key program -12
3.9 Suppressing Effects of Pitching and Rolling (Stabilizer) -13
4. ECHOSOUNDER MODE -1
4.1 Choosing the Range -1
4.2 Adjusting the Gain -2
4.3 Picture Advance Speed -3
4.4 Measuring Depth -3
4.5 Suppressing Interference -4
4.6 Suppressing Low Level Noise -4
4.7 Erasing Weak Echoes -5
4.8 Other Items on the Sounder Menu -6
5. MARKS AND DATA -1
5.1 Marks and Data on the Normal Display -1
5.2 Marks and Data on the Echosounder and Audio Displays -5
6. INTERPRETING THE DISPLAY -1
6.1 Bottom Echo -1
6.2 Fish School -2
6.3 Sea Surface Reflections -3
6.4 Wake -3
6.5 False Echo by Sidelobe -4
6.6 Noise and Interference -4
7. MARKS AND SYSTEM MENUS -1
7.1 MARKS Menu -1
7.2 SYSTEM Menu -3
v
8. MAINTENANCE, TROUBLESHOOTING -1
8.1 General Maintenance -1
8.2 Cleaning the Equipment -1
8.3 Hull Unit Maintenance -2
8.3.1 Lubrication points, zinc plate -2
8.3.2 Manually raising the transducer -3
8.4 Fuse Replacement -4
8.5 Fan Replacement -4
8.6 Troubleshooting -5
8.7 Error Messages -6
8.8 Diagnostic Tests -7
8.8.1 Choosing a diagnostic test -7
8.8.2 Description of diagnostic tests -8
MENU TREE........................................................................................................AP-1
SPECIFICATIONS................................................................................................ SP-1
INDEX
Here Is the Cover Page Text:
COLOR SCANNING SONAR CSH-5L/CSH-8L
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