Table Of Contents - Kongsberg EM 712 Maintenance Manual

ABOUT THIS MANUAL .............................................................. 9
KONGSBERG EM 712.............................................................. 10
System description ........................................................................................................... 11
EM 712B, upgrade from EM 710 .................................................................................... 11
System diagram - 0.25° x 0.5° system .............................................................................12
System units .....................................................................................................................14
Transducer description ...........................................................................................14
Processing Unit description....................................................................................14
Transmitter Unit description...................................................................................15
Receiver Unit description .......................................................................................16
Hydrographic Work Station description.................................................................16
TROUBLESHOOTING .............................................................. 17
Tools for troubleshooting.................................................................................................18
BIST (Built-In Self Test) dialog box ...............................................................................19
BIST (Built-In Self Test) theory ......................................................................................22
BIST Introduction...................................................................................................23
CPU Test.................................................................................................................24
CBMF test ..............................................................................................................25
RX unit test.............................................................................................................26
TX unit test .............................................................................................................27
CBMF-CPU link.....................................................................................................28
RX-CBMF link.......................................................................................................29
RX channels ...........................................................................................................30
TX channels............................................................................................................31
RX noise level ........................................................................................................32
RX noise spectrum .................................................................................................33
Software date and versions.....................................................................................34
System information ................................................................................................34
PREVENTIVE MAINTENANCE.................................................. 35
Inspecting and cleaning the transducer face ....................................................................36
Painting the transducer face .............................................................................................38
Inspecting and replacing sacrificial anodes......................................................................40
Approved anti-fouling paints ...........................................................................................41
PARTS REPLACEMENT............................................................ 43
Tools and equipment required for parts replacement.......................................................44
Processing Unit replacement............................................................................................46
Removing the Processing Unit ...............................................................................47
451106/B

Table of contents

Maintenance Manual
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