NorthStar Navigation EXPLORER 435 - Manual (Page 15)

Northstar Explorer 435/438 Installation and Operation Manual 15
3-7 Setup > Units
Press MENU twice to display the Setup menu,
then select Units:
The default units
are shown in this
example.
Distance
Select from:
• nm (nautical miles)
• mi (miles)
• km (kilometres)
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)
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:
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).
Press MENU twice to display the Setup menu,
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
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
3-9 Setup > Calibrate
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.
Speed
Select from:
• kn (knots)
• mph (miles per hour)
• kph (kilometres per hour)