L-3 Communications Navigation Echosounder LAZ 5100 - Manual (Page 11)

Page 1-1
L-3 ELAC Nautik
1 GENERAL
1.1 FUNDAMENTAL SAFETY INSTRUCTIONS
General remark to hydroacoustic equipment LAZ 5100
Even with a carefully selected transducer position and proper installation, the function of
hydroacoustic equipment can be impaired by turbulence, acoustic noise or aerated water.
As main causes, the following can be stated:
− Propeller(s) running reversed;
− Thruster(s) in operation, especially at low speed ahead;
− Engine noise, transferred to the transducer either by the hull structure or through the water, the
latter especially as bottom- reflection in shallow water.
− Losing sonar contact with the water at extremely bad weather, as a result of violent pitching.
− Hot water discharges from power plants;
− Rising cold water in several sea areas.
The list above is not complete; we will be pleased to assist with further information on request, see
also chapter 5.1 Installation.
The LAZ 5100 echosounder has been built in accordance with state of the art standards and
recognised safety regulations. Nevertheless, it may constitute a risk to life or limb of the user and
or third parties, or cause damage to the vessel and or other material property if the following rules
are not complied with.
The LAZ 5100 Echosounder must only be used in a technically flawless condition in accordance
with it's designated use and the instructions contained within this Technical Handbook and only by
safety conscious persons who are fully aware of the risks involved in operating such a system.
The LAZ 5100 Echosounder is designed exclusively for use as a navigational echosounder. Using
the system for purposes other than this is considered contrary to it's designated use. The
manufacturer can not be held responsible for any damage resulting from such misuse. The risk of
such misuse lies entirely with the user.
Personnel entrusted with operating the system must have read the Technical Handbook, in
particular the section on safety measures before and during operation. Reading these instructions
after starting the system is too late. This applies especially to persons who only work with the
system occasionally, e.g. during setting up or maintenance.
Always observe the maintenance/inspection intervals laid down in this Technical Handbook.
Use only spare parts authorised by the manufacturer and never replace defective fuses by those of
any other rating than specified.
Switch the system OFF immediately if trouble occurs with the electrical system.