Bedienungsanleitung Navman Trackfish 6600 (Seite 60 von 83) (Englisch)

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TRACKFISH 6600 Installation and Operation Manual 61

NAVMAN

Press MENU once or more until the Setup

menu is displayed, then select Calibrate:

The fuel

options can

be calibrated

only when

the optional

single or twin

engine kit is

installed on

petrol/gasoline

engines.

Speed

This calibrates the speed from the paddlewheel

transducer. Calibration may be required

because different hull shapes have different

flow characteristics.Obtain an accurate

measurement of the boat's speed from a GPS

receiver; or by following another boat travelling

at a known speed; or by making a timed run

over a known distance.

Note: for accurate calibration:

• The speed from a GPS receiver should be

greater than 5 knots.

• The speed from another paddlewheel

transducer should be between 5 and

20 knots.

• Best results are achieved in calm

conditions where there is minimal current

(best at high or low tide).

Press or to change the displayed speed

to the true value.

Speed filter

Waves and wind cause the boat speed from

the paddlewheel transducer to ﬂ uctuate slightly.

To give stable readings, the TRACKFISH

calculates these values by taking several

measurements and averaging them. Set the

Speed ﬁ lter to the lowest value which gives

stable readings. The range is 1 to 30 seconds

or Off (0).

Temperature

The factory settings should be sufﬁ ciently accurate

for normal usage. To calibrate the temperature

readout, ﬁ rst measure the water temperature with

a thermometer known to be accurate.

Use the cursor keys

to display the temperature

readout box,

then increase or decrease the

15-11 Setup > Calibrate

value to match the measured temperature. The

temperature can be set from 32° to 99.9°F (0°

to 37.7°C) with a resolution of 0.1° unit.

To change the units between °F (Fahrenheit)

or °C (Celsius), see section 15-9.

Temperature filter

Water turbulence and currents cause the water

temperature to ﬂ uctuate slightly. To give stable

readings, the TRACKFISH calculates these

values by taking several measurements and

averaging them. Set the Temperature ﬁ lter to

the lowest value which gives stable readings.

The range is 1 to 30 seconds or Off (0).

Fuel

Calibrating the fuel usage can improve the

accuracy of fuel measurements.

Twin engine installations require each fuel

transducer to be calibrated. This can be done

at the same time with two portable tanks or at

different times using one portable tank.

Calibrating the fuel transducer(s) 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.

It is often very difﬁ cult to ﬁ ll underﬂ oor tanks

to the same level twice due to air pockets,

so the more fuel used, the more accurate

the calibration.

To calibrate the fuel transducer(s), perform the

following steps:

1. Record the level of the fuel in the tank(s).

2. Connect the portable tank(s) to the

engine through the fuel transducer(s).

3. Run the engine at normal cruising speed

until at least 4 gallons (15 litres) of fuel

has been used per engine.

4. Check the actual amount of fuel used per

engine by reﬁ lling the portable tank(s) to

the original level and noting the reading(s)

from the fuel dispenser’s gauge.

5. Select Fuel. Use the cursor keys to

change the reading for each engine to

match that on the fuel dispenser’s gauge.

6. Press ENTER when the reading

is correct.

Note: If the fuel calibration options appear

to give erroneous readings after a while,

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Navman Trackfish 6600 Seite 60

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