Fuel Calibration (Cal.f); Fuel Flow Damping (Damp.f); Speed Input (Input); Speed Damping (Damp.s) - Navman FUEL 3100 Manual De Instalación Y Funcionamiento

3-4 Fuel calibration (CAL.F)

To calibrate a fuel flow sensor, select CAL.F in
the FUEL menu. Calibrate the sensors if you are
doubtful of their performance.
FUEL 3100: It is essential to calibrate the fuel
flow sensors after installation and again after
the first 100 engine hours to allow moving parts
to wear in.
DIESEL 3200: The sensors are factory calibrated
and are highly accurate. They can be calibrated
but this should not be necessary.
Calibrating a fuel flow sensor requires accurate
measurement of the fuel consumption. This is
best done using a small portable tank. At least 4
gallons (15 litres) of fuel should be used to ensure
an accurate calibration. The more fuel used, the
more accurate the calibration.
Twin engine boats require both engines to
be calibrated. Do these together with two
portable tanks, or at different times using one
portable tank.
To calibrate an engine's fuel flow sensor:
1 Connect the portable tank to the
engine through the fuel flow sensor.
Reset USED:
2
i Press one or more times
until USED is displayed.
ii If your boat has twin tanks,
press ENT one or more times
to display PORT or STBD.
iii Hold ENT and
the reading resets to zero.
3 Run the engine at normal cruising
speed until a known amount of
fuel, at least 15 litres (4 gallons),
has been used per engine.
Select the FUEL setup menu, then
4
select CAL.F; if your boat has twin
engines, select the PORT or STBD engine
to be calibrated (see section 3-1).
If the value of CAL.F does not match
5
the known amount of fuel used, press
ENT, then press
CAL.F until it does match. Then press
ENT to save the correct value (otherwise
press ESC to ignore the calibration).
14
together until
or and change
NAVMAN

3-5 Fuel flow damping (dAmP.F)

Waves and rocking of the boat cause the fuel
flow to fluctuate slightly. To give a stable reading,
the instrument calculates flow by taking several
measurements over a period of time and
averaging them. This is called damping.
Set dAmP.F to between 1 to 99 seconds. Small
values will give more accurate readings but
will show fluctuations. Large values will give
more stable readings, but will ignore some
true fluctuations.

3-6 Speed input (InPUt)

Select the optional speed input:
No: No speed input is available.
GPS: Use GPS speed received via
NMEA. This is speed over ground.
SEn: The optional paddlewheel
sensor connected directly to the
unit, or through the Navbus system.
This is speed through water.
Note:
A speed input is required to display LOG,
TOTA L LOG , R A NGE and SPEED (see
section 2-5).
Speed over ground and speed through water
can give different values for some displayed data
(see appendix C).

3-7 Speed damping (dAmP.S)

(Only available if an optional paddlewheel sensor
is connected to the unit and InPUt = SEn.)
Waves and rocking of the boat cause the speed
to fluctuate slightly. To give a stable reading,
the instrument calculates speed by taking
several measurements over a period of time and
averaging them. This is called damping.
Set dAmP.S to 1 (6 sec), 2 (12 sec), 3 (18 sec), 4
(24 sec) or 5 (30 sec). Small values will give more
accurate readings but will show fluctuations.
Large values will give more stable readings, but
will ignore some true fluctuations.
FUEL 3100 / DIESEL 3200 Installation and Operation Manual