Application: To have in one point of the vessel all the information needed to navigate, as in the fly bridge in motor boats or the wheel in a sail boat, and keep the more expensive instruments into the boat, an also have special calculated information for race sail boats
Description
Is a sealed instrument to be installed outside, and has an led back lighted LCD display, with two lines of 16 characters each one. This display is logically treated as four displays of 8 characters each.
The character have 1 cm high by 0,5 cm wide.
Using four buttons, one for each display, we can choose freely the information to be show in each display.
Is powered with 12 V and has three NMEA183 inputs and a NMEA 183 output. The output is the queue of the three inputs. It could be used to introduce the information of the instruments to a notebook.
The information displayed by the computer varies accordingly with the use.
Cruising Boat
With connected GPS.
Time
Date.
Latitude.
Longitude.
Sped.
Track.
With GPS connected an a way point selected
Cross Track error.
Destination
Way point.
Distance to the Way point.
Bearing.
Estimated
time to arrive.
Velocity made good.
With a wind meter connected
Wind speed .
Angle
of the wind.
With deep sounder connected
Deep below transducer.
With a Knot meter connected
Water Speed.
Water
temperature.
With a magnetic compass connected
Magnetic track
Battery Voltage
For a race boat
All the previous information plus:
True
wind speed.
True wind angle.
True wind angle to the north ( to follow the
Wally's).
Relation of the speed toward
the speed calculated by the IMS formula.
Alarms
Has a visual and sound alarm of battery low voltage.
Navigation Computer
The instrument has an led back lighted LCD display, with two lines of 16 characters each one. This display is logically treated as four displays of 8 characters each.
When you turn on the instruments display four shows the battery voltage and the other four the software version.
If the GPS is connected and running, the display 1 will show the time, the display 2 the speed in knots and the third the track
Pushing the button of each display, D1, D2, D3, y D4, they show in a ring the following information:
With a GPS connected:
'..T' ;Time
'..S.'
;latitude
'..O' ;longitude
SPD.' ;Speed in knots, is show ending with KNT
'TRK.' ;Track. Is show as º y TRK
'DAT.' ;Date
'ERR.'
;Track error, shows how far are of the ideal course to the
destination way point in nautical miles. Maximum 9 miles. Is show
with mn and an arrow indicating the correction direction.
'WYP' ;Destination Way point
'DIS.'
; Distance to the destination way point, in indicated in nautical
miles, ending with nm.
'BRG' ;The
bearing to reach the destination way point, in grades, is show with º
and BRG
'VMG.' ;Velocity made good in
knots, is show with KNG
'ETA.'
;Estimated time to arrive show in our, min and seconds. separated by
:
With a deep sounder connected
'PRF' ;Profundity in meters. Is show ending with m.
With a wind instrument connected
'WSP.'; wind speed in knots, Is sowed ending
with KNW
'ANG' ; apparent wind angle.
Is show with º Aw and an arrow indicating if comes from
starboard or port board.
With a knot meter connected:
WSP.' ;Speed toward the water. Is show as WKN
TMP.' ;temperature of the water in Celsius. Is
show as ºCTMP
With an electronic compass connected:
'RMC.' ;Magnetic track in grades. Is show as ºCOM
With a GPS in one input and a Wind instrument in the other
'TWS.' ;true wind speed in knots. Is show as
KnTW
'TWD.' ;True wind direction. Is
show as TWD and an arrow indicating if cams from star board or port
board.
'WDN.' ;Wind direction toward the north. Is
indicated as ºWN
'VPP.' ;% of the
predicted speed (must be loaded the polar curve of the ship), is show
as %
'BAT' ; Battery voltage in volts. Show as V
The indication of the left is showed in the display to indicated the function selected and remain until the information arrives.
ALARMS
If the battery voltage goes below 11 volts, it turns on the sound alarm and the display four shows Low Bat. Pressing any button turn off the alarm.
Installation Manual
Navigation Computer
Make a hole of 21 mm as show in the diagram, insert the instrument in that hole and, seal the instrument against the wall. After that fix the instrument with the nut provided.
Instrument from the back
Connections
In 12 V must be connected the battery +
In 0V the Battery -
In input 1 must be connected the GPS output, NMEA + (High traffic
instrument), it has a 75 bytes buffer.
In the input 2 must
connected the wind instrument or knot meter. (Medium Traffic). It has
a 35 bytes buffer
In the 3 input must be connected the magnetic
compass, deep sounder. ( Low traffic). It has a 25 bytes buffer
In
0 V NMEA all the NMEA - or grounds
Output is the NMEA + output of
the computer. It has a 250 bytes output spool.
Alarm is an output
for an external alarm
Illumination is the input to turn on the
back light.
Technical specifications
Battery input: 9 - 16 v
Power
consumption: 0,01 A. With back light turn on 0,1 A.
NMEA
input are 0 -3 / 5 V, to ground.
The
NMEA output is totem pole LSTTL 0 - 5 V 0,01 A.
Alarm
Capacity 0,1 at 12 V. The alarm puts the output to 0 V.
Illumination: Grounding the pin turns on the
light, Maximum current 0,1 A