Navman FISH 4500/4600 Manuel D’Utilisation

Before doing a partial refill of the tank or remov-
ing fuel manually from the tank (for example, by 
siphoning it off):

1. Note 

the 

Remaining

 reading on the 

Fuel display. 

2.  Note how much fuel is added or removed.
3.  Calculate how much fuel is now in the tank.
4. Select 

Set remaining

 and update 

the reading. 

It is essential to do this whenever some fuel 
is added or removed. Otherwise, the read-
ing on the Fuel display (see section 5-6 Fuel 
Display)  and the Low Fuel Alarm (see section 
3-5 Setup > Alarms) are meaningless.

Select Clear used to set Used (the amount 
of fuel used) to zero. Do this to start measuring the 
amount of fuel used over a certain time or distance.
When asked Are you sure? select Yes.

Enter the capacity of the fuel tank. 

Set the number of engines to 0,  1 or  2. If 0 is 
selected the fuel features are turned off.

See section 3-8 Setup > Calibrate, for information 
about calibrating the fuel transducer(s).

Most engines do not draw fuel from the tank at a 
steady rate. To give a stable fuel flow reading, the 
fishfinder calculates the flow value(s) by taking 
several measurements and averaging them. Use 
the Flow filter to set the period over which the fuel 
flow is averaged. 

For twin engine installations, the fuel flow for each 
engine must be adjusted separately.

The Flow filter can be set from 0 to 30 seconds.  Use 
the lowest value which gives a stable flow. Usually a 
value of 5 to 10 seconds will give a satisfactory result 
for two-stroke carburettor engines. Fuel injected or 
four-stroke engines may require a larger value.

This setting affects the Fuel flow and Fuel 
economy

 reading on the Fuel display (see section 

5-6 Fuel display) but it does not affect the Fuel 
used

 reading.

Select speed input from water speed transducer or 
external GPS source (an external GPS source must 
be connected to the Fishfinder via NavBus or NMEA 
comms – see section 3-7 Setup > Comms.)

Press MENU one or more times until the Setup 
menu is displayed, then select Logs:  

The values can be changed independently of 
each other. These log values are saved when 
the unit is turned off.

This resets the trip distance to zero. 

This option resets the total distance to zero. 

Use this option to reset the engine hours to 
zero. This can be useful after an engine service 
or to count the engine hours between service 
intervals.

FISH 4500/4600 Installation and Operation Manual

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NAVMAN