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Only specialized personnel shall perform installation work.
Installation work performed by personnel other than specialized personnel
may cause breakdown of the equipment, poor performance, fire, severe elec-tric
shock and other property and human damages.
When you directly connect with the ship's power supply without using the
optional rectifier, measure the voltage between the hull's earth and the
positive side of ship's power spply, and the hull's earth and the negative side of
this. And check voltage of 50 volts or more is not required.
If voltage of 50 volts or more is required, take the measures which do not
require 50 volts or more between the above mentioned terminals.
Connection without taking the measures causes system failure or accident.
This adjustment is a function of adjusting tune indication and peak of echo, it
is already made at the factory.
The default value is 64.
The settings must not be changed on the spot.
When the tune indication and peak of echo shift, if the settings are carefully
adjusted, you can not get the tuning.
The gain falles, a collision etc. may occur.
Do not change this adjustment unnecessarily.
An incorrect adjustment may erase the closest target and a collision may
occur.
VI
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