Konsberg EM 124, Installation Manual

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The number of individual TX and RX modules in the two arrays depends on the chosen
configuration. The standard types identified by "transmission x reception" beamwidth
are:
•
0.5 x 1 degree system
: 96 transmit transducer modules and 16 receive transducer
modules
•
1 x 1 degree system
: 48 transmit transducer modules and 16 receive transducer modules
•
1 x 2 degrees system
: 48 transmit transducer modules and 8 receive transducer modules
•
2 x 2 degrees system
: 24 transmit transducer modules and 8 receive transducer modules
•
2 x 4 degrees system
: 24 transmit transducer modules and 4 receive transducer modules
•
4 x 4 degrees system
: 12 transmit transducer modules and 4 receive transducer modules
Note
During the installation of the transducer array, you must fill in the serial number in the
cable identification table.
Procedure
1 Put the first transducer module into the frame.
TX transducer module number 1 is always the most forward module.
Note
Observe the direction of the transducer.
The TX cables shall alternate between pointing towards starboard or port side. The
cable on TX module number 1 must point towards the port side.
2 Pull out the transducer cable, and guide it out through the side of the mounting
frame.
EM 124 transducer cables have a minimum bending radius of 78 mm.
Note
Ensure that minimum bending radius is not exceeded and that no damage is inflicted
to the cables during the pull.
Damaged cables can only be replaced by replacing the entire transducer module
and would require the vessel to be in dock.
3 Secure the transducer module in place with the brackets, one on each side.
Secure each bolt with Loctite 242, use torque 64 Nm.
4 Fill in the serial number in the cable identification table.
TX transducer module number 1 is always the most forward module.
5 Mount the next transducer module next to the previous.
Installing the transducer