To show the Fuel display, press DISP and select
Other Tab, select Fuel and press ENT.
There are no options.
(See section 3-3 Setup > Fuel for info rmation
about setting up the fuel values . If the number
of engines is set to 0, the fuel features are
turned off.)
Used shows total fuel used since this was l ast
reset with the Clear Used command.
Remaining shows the amount of fuel
remaining in the tank(s).
Flow shows the fuel consumption per hour.
For twin engine installations, the f uel flow for
each engine is shown separately. This is usef ul
for checking that both engines are un der the
same load.
5-7 Fuel display (4433 only)
Fish recognition
The echo strengths shown on the A-sco pe
can be useful in recognising the typ e of fish.
Different species of fish have di fferent sizes
and shapes of swim bladders. The a ir in the
swim bladder reflects the ul trasonic pulse, so
the strength of the echo varies bet ween fish
species according to the size and shape of th e
swim bladder.
When fishing among a school of fi sh and
catching them, note the fish species and t he
strength of the echo that it returns on the
A-scope. Then, when that partic ular echo is
seen at future times on the fishfind er, it is likely
to be the same fish species.
5-6 A-Scope perspective view
The strength of echoes on this view are
determined by the’height’ of the ec ho shown
on the screen.
FISH 4432/4433 Installation and Operation Manual27 NAVMAN