Setup > Units; Setup > Comms (Explorer 438 Only); Setup > Calibrate - NorthStar EXPLORER 435 Installation And Operation Manual

3-7 Setup > Units
Press MENU twice to display the Setup menu,
then select Units:
Speed
Select from:
kn (knots)
•
mph (miles per hour)
•
kph (kilometres per hour)
•
3-8 Setup > Comms (Explorer 438 only)
Use this feature when the Explorer 438 is
connected to other Northstar instruments or any
NMEA compatible instrument.
Press MENU twice to display the Setup menu,
then select Comms:
3-9 Setup > Calibrate
Press MENU twice to display the Setup menu,
then select Calibrate:
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
The default units
are shown in this
example.
Distance
Select from:
nm (nautical miles)
•
mi (miles)
•
km (kilometres)
•
The fuel options can
be calibrated only
when the optional
single or twin engine
kit is installed on
petrol/gasoline
engines.
Speed
Calibration may
Northstar Explorer 435/438 Installation and Operation Manual
Depth
Select from:
ft (feet)
•
m (metres)
•
fa (fathoms)
•
Fuel
Select from:
Litres
•
USGal (US gallons)
•
ImpGal (Imperial Gallons)
•
Temperature
Select either:
°F (Fahrenheit)
•
°C (Celsius)
•
NMEA
NMEA is generally used with third party
instruments. Select On to transmit NMEA
sentences (see Appendix A - Specifications).
Otherwise, select Off.
NMEA data
Use this to specify which NMEA sentences will be
transmitted (see Appendix A - Specifications and
section 5-6 Data display, for information about
how to display NMEA data).
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).
Use the cursor keys to display the speed readout box,
then increase or decrease the readout to match the
independent speed value.
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