User Manual and Operating Guide
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WARNINGS 
Overvoltage Warning...........................................................................................................13-1 
Unretracted Transducer Warning.........................................................................................13-1 
SELF TESTS 
Opening the Self Test Menu ................................................................................................14-1 
Self Test Description............................................................................................................14-2 
Interface Unit CS-120A Self Test........................................................................................14-5 
INPUT DATA SELECTION 
Selection of Data at Interface Unit CS-120A.......................................................................15-1 
Setting Distances Between Net Sonde Transmitters............................................................15-2 
MAINTENANCE 
Display Unit Maintenance....................................................................................................16-1 
Hull Unit Maintenance.........................................................................................................16-2 
Replacement of Fuse, Memory Card Battery.......................................................................16-3 
MENU TREE...................................................................................................... A-1 
SPECIFICATIONS...........................................................................................SP-1 
INDEX .............................................................................................................. IN-1 










