iv
9. WARNING__________________________________________ 30
Overvoltage Warning..................................................................................................... 30
Unretracted Transducer Warning................................................................................... 30
10. MENU ____________________________________________ 32
General .......................................................................................................................... 32
Changing Menu Settings ............................................................................................... 32
11. INTERFACE MODULE CSH-5060 ______________________ 35
Specifications................................................................................................................. 35
Operation .......................................................................................................................36
Indications .....................................................................................................................47
Marks and Data.............................................................................................................. 51
Event Mark Position Output ..........................................................................................52
12. MAINTENANCE ____________________________________ 53
General .......................................................................................................................... 53
13. UNIT DIAGNOSTIC TESTS ___________________________ 54
Description of Unit-diagnostic Tests .............................................................................54
14. CHARACTERISTICS OF THE ULTRASONIC WAVE IN
WATER___________________________________________ 58
Sound Velocity...............................................................................................................58
Absorption and Attenuation........................................................................................... 59
Refraction ......................................................................................................................60
Adverse Effect of Air Bubbles....................................................................................... 61
Reflection at Seabed and Fish School ........................................................................... 62
SPECIFICATIONS____________________________________ SP-1
INDEX