Nexus NX Compass User manual

Installation and Operation Manual
NX Compass
English

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English NX Compass Pack
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Edition: Mar 2012
This manual is written for NX Compass Instrument 1.00

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1!Part specification .............................................................................................. 4!
2!Installation ......................................................................................................... 6!
2.1!Installing the instrument.............................................................................................................. 7!
3!Installation ......................................................................................................... 8!
3.1!Location of the NX Compass ...................................................................................................... 8!
3.2!Check the location: ..................................................................................................................... 8!
4!Electrical installation ...................................................................................... 10!
4.1!Connect a stand alone Compass.............................................................................................. 10!
4.2!Connect In a NX system ........................................................................................................... 11!
4.3!NMEA and Push button connection.......................................................................................... 11!
4.4!Sealing the instruments ............................................................................................................ 12!
5!First start ......................................................................................................... 13!
5.1!Initialising the instrument .......................................................................................................... 13!
5.2!How to use the push buttons of the Wind instrument ............................................................... 14!
5.3!Main function ............................................................................................................................ 15!
5.4!Analogue function ..................................................................................................................... 15!
5.5!Sub-functions............................................................................................................................ 15!
5.5.1!Steer function[STR]................................................................................. 15!
5.5.2!Boat Speed [BSP] ................................................................................... 15!
5.5.3!Velocity Made Good (VMG) .................................................................... 15!
5.5.1!Geographic (True) Wind direction (TWD) ............................................... 16!
5.5.1!Steer mode ............................................................................................. 16!
5.5.2!Start up mode ......................................................................................... 16!
6!Calibration and setup of the Compass instrument...................................... 16!
6.1!Set damping for heading........................................................................................................... 16!
6.2!Select damping for BSP, VMG, TWD or STR........................................................................... 17!
6.1!Select unit for BSP and VMG ................................................................................................... 17!
6.2!Calibrate the compass sensor. ................................................................................................. 17!
7!Maintenance and fault finding ....................................................................... 18!
7.1!Maintenance ............................................................................................................................. 18!
7.2!Fault finding .............................................................................................................................. 18!
7.2.1!General fault finding................................................................................ 18!
7.2.2!Fault - action ........................................................................................... 19!
7.2.3!NMEA Out............................................................................................... 19!
8!Specifications.................................................................................................. 20!
8.1!Technical specifications Wind Instrument................................................................................. 20!
9!Warranty .......................................................................................................... 20!

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1 Part specification
__________________________________________________________
Items delivered with the instrument
Qty Description Reference
1 NX Compass instrument 1
1 Instrument cover 2
1 Drill template for instrument 3
1 Installation and operating manual 4
2 Instrument mounting screws 5
2 Plastic nuts 5
1 Connection back cover 5
1 Silicon paste tube 5
1 Instrument connector 5
2 Plastic cable strap 5
5 Cable protectors, 0,25 mm (0.1 inch) 6
5 Cable protectors, 0,75 mm (0.3 inch) 6
Only in pack with Instrument and transducer
1 3m red power cable 7
1 3m black power cable 7
1 NX Compass transducer 8
1 Nexus Network cable, 10 m (30 ft) 9
3 Mounting screws for Compass transducer 10
Registering this product
Once you have checked that you have all the listed parts, please take time to fill in the
warranty document and return it to your national distributor.
By returning the warranty card, it will assist your distributor to give you prompt and
expert attention. Keep your proof of purchase. Your details will also be added to our
customer database so that you automatically receive new product catalogues when
they are released.
Warranty conditions see 9.

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2 Installation
• The installation includes 5 major steps:
1. Read the installation and operation manual.
2. Plan where to install the Compass transducer and the instrument.
3. Run the cables.
4. Install the Compass transducer and the Instrument.
5. Learn the functions and calibrate your system.
Before you begin drilling ... think about how you can make the installation as neat
and simple as your boat will allow. Plan where to position the transducer and
instrument. Think about leaving space for additional instruments in the future.
•A few ”do nots” you should consider:
−Do not cut the cables too short. Allow extra cable length at the instrument
so it can be disconnected for inspection without having to disconnect all
attached cables.
−Do not place sealant behind the display. The instrument gasket eliminates
the need for sealant.
−Do not run cables in the bilge, where water can appear.
−Do not run cables close to fluorescent light sources, engine or radio
transmitting equipment to avoid electrical disturbances.
−Do not rush, take your time. A neat installation is easy to accomplish.
• The following material is needed:
Wire cutters and strippers.
Small and large Philips and a small flat head screw driver.
Hole saw to cut a hole for the instrument back of 63 mm (2½").
2.8mm drill for the Compass transducer mounting screws
5 mm (1/4") drill for the mounting holes.
Plastic cable ties
If you are doubtful about the installation, obtain the services of an experienced
technician.

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2.1 Installing the instrument
•Place the adhesive drill template on the desired location for the instrument. Drill the
2 holes using a 5 mm (1/4") drill for the two pin bolts. Use a 63 mm (2½") hole saw
to machine the clearance hole for the instrument connection socket. Remove the
template.
•Screw the two pin bolts to the instrument
•Put the instrument in place
•Screw the two nuts from the back
Note! The two nuts must just be tightened by hand only
•Run the Nexus Network cable from the Compass transducer to the instrument.
•If you want to cut the Nexus Network cable to length, cut it in the instrument end.
Peel off about 35 mm (1.4") of the cable insulation. Remove about 6 mm (1/4") from
the 3 isolated wires (the 4th wire is an earth / screen). Attach the 4 cable protectors
to the wires using a pair of flat pliers.
•Connect the 4 cable protectors to the 4-pole jack plug as shown. Apply silicon
paste on all locations as shown.
Note: Must be done to avoid corrosion.

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3 Installation
3.1 Location of the NX Compass
The transducer should be mounted horizontal or vertical (see pictures below). The
surface may be leaning ± 10 degrees from the horizontal or vertical plane.
It should be mounted perpendicular to the fore aft line (see picture on next page). Try to
mount the transducer reasonably well away from magnetic disturbances such as
objects containing iron, loudspeakers, window wipers etc. For safe distances, see page
11. The transducer does not have to be mounted in the centre of the boat. The
optimum position for the transducer is at the centre of gravity of the boat. At that
position there may be magnetic disturbances, therefore the transducer normally is
installed more forward. The transducer is normally mounted below deck but its water
resistant enclosure allows for outside mount, which is preferable for some steel boats.
3.2 Check the location:
If you have large disturbance sources or a steel boat we recommend to connect the
transducer, mount it temporary and check the readouts before mounting it permanently.
Horizontal mounting
Vertical mounting

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