NX Compass Installation and Operation Manual
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Edition: Mar 2012 This manual is written for NX Compass Instrument 1.00 2
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 3
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. 4
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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. 6
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. 7
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 8
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4 Electrical installation The transducer is connected to the Nexus Network. After the electric installation you should check the readings on the instrument before you proceed with the automatic compensation. If the readings are inaccurate with more than 20º at any course, the transducer should be relocated. 4.1 Connect a stand alone Compass C 10
4.2 Connect In a NX system SPEED PLUS AV N WIND SET C C 4.3 NMEA and Push button connection 11
4.4 Sealing the instruments Apply silicon paste to the instrument connection pins at the back of the instrument. Press the jack plug onto the instrument pins. Press the cable in to the cable leads. Mount the connection back cover with the screw. 12
5 First start 5.1 Initialising the instrument You will be asked to press SET (PrESkey) on the instruments the very first time after installation. This will give the instrument a logical ID number that belongs to your specific Nexus Network. Press SET, on each installed instrument, one at the time. Always wait for the text Init OK to be displayed, before you press SET on the next instrument! The first unit ID number is 16, then 17 and so on in the order which you press SET. The example shows that the NX Compass instrument has version no. 1.00 and ID number 17 13
5.2 How to use the push buttons of the Wind instrument HEADING INFOTEXT Heading arrow WIND ANGLE SUBFUNCTION CLEAR A press on CLEAR, clears the digits. MINUS A press on MINUS moves to the next subfunction. In edit mode it decreases to the previous digit. PAGE A press on PAGE toggles the analog scale The PAGE button is also used to move the cursor when in edit mode. 14 PLUS A press on PLUS moves to the previous subfunction. In edit mode it increases to the next digit. SET A press on SET unlocks a digit to access edit mode. When unlocked, the digits are 'active' (flashes) and can be edited by pressing MINUS, PLUS and PAGE
5.3 Main function This function will always display Heading. 5.4 Analogue function The analog scale is showing heading (5 degree / segment) or Steer function (2 degree/segment). To toggle between these two, press PAGE. 5.5 Sub-functions Select sub-function with PLUS or MINUS. 5.5.1 Steer function[str] The text [STR] (STeaR Function) and its value is displayed below. To change the steer reference, press SET and select the new value with PLUS or MINUS. A short press on C will set the current heading as steer reference. 5.5.2 Boat Speed [BSP] The text [BSP] (Boat SPeed) and its value is displayed below. The unit for [BSP] (Boat SPeed) may be selected between [KTS] (KnoTS), [M/S] (Metres/s), [MPH] (Miles/h) or [KMH] (Km/h). 5.5.3 Velocity Made Good (VMG) The text [VMG] (Velocity Made Good) is displayed with the actual boat speed towards or against the Wind. The water and wind speed information are taken from the respective transducers which are required to provide VMG. The speed information can be taken from the log transducer or from Nexus Network. VMG = 0.0 knots when the true Wind angle is perpendicular to the boat. WIND 15
5.5.1 Geographic (True) Wind direction (TWD) Text [TWD] is displayed shortly, then is the abbreviation for Wind directions displayed, [SSW], [NO], [WNW] etc. together with the numerical direction below. 5.5.1 Steer mode The steer function will display the difference between the reference course and the steered course. To change the reference course, press SET. The current heading is displayed, change with PLUS or MINUS and press SET to lock the value in. Note, an external push button may be connected to the back of the instrument to automatically lock in the current heading. 5.5.2 Start up mode Your favourite function can be automatically displayed at power on. Go the your favourite page and press PAGE and SET together and the display will start flashing. Confirm that selection with a long press on SET. 6 Calibration and setup of the Compass instrument To get the most out of your Nexus instrument, it is important to carefully calibrate the instrument. The calibration values are stored in a non volatile memory. 6.1 Set damping for heading Damping is how quickly the instrument shows the updated information. To access settings for the Heading, press PLUS and SET together. The selected damping for heading is displayed. Change the damping with PLUS or MINUS and confirm with SET. To select Magnetic heading instead of true, press PLUS and SET together. Press PAGE and the tru or AG is displayed. Toggle between the two choices with PLUS or MINUS and confirm with SET. 16
2. Automatic 6.2 Select damping for BSP, VMG, TWD or STR Go to the function you want to change the damping for. Press SET and MINUS together. The current damping is displayed. Change with PLUS or MINUS and confirm with SET. 6.1 Select unit for BSP and VMG Go to the BSP or VMG function and press SET and MINUS together. Press PAGE and the current unit is displayed. Select new unit with PLUS or MINUS and confirm with SET. Note, BSP and VMG will always use the same unit. 6.2 Calibrate the compass sensor. In order to get the reading from the compass sensor correct, it has to be calibrated. To enter the calibration mode, press SET for more than 2sec. 1. Set the mounting orientation of the compass sensor. Press SET for more that 2 sec. Press PAGE one time and the text SET ref is displayed. Make sure the boat is levelled and press SET. The system will now automatically detect if the compass is mounted horizontally or vertically. deviation of the compass Press SET for more that 2 sec. Press PAGE two times and the text DEV Aut is displayed. Start turning the boat in a smooth turn in calm weather (making sure you have room to make a comfortable 400 deg turn. Press SET and the display will start to count down from 400. When you have reached zero, press SET. Go back to normal display mode with a long press on SET. 17
7 Maintenance and fault finding 7.1 Maintenance To clean the instrument, use only mild soap solution and rinse with water. Do not use detergents or high pressure washing equipment on the instruments and transducers. Once a year, check all wiring and apply additional silicon paste at each connection point. Always use the instrument cover for protection when not in use. It is advisable to remove both instruments and transducers and store them in a dry and room tempered place when not in use for longer periods. 7.2 Fault finding Before you contact your Nexus dealer, and to assist your dealer to give you a better service, please check the following points and make a list of: All connected instrument and transducers, including their software version numbers. Software version numbers. Nexus Network data bus ID numbers for each instrument (displayed at power up). 7.2.1 General fault finding In most cases, the reason for faults in electronic equipment is the installation or poor connections. Therefore, always first check that: Installation and connection is made per instructions for instrument and transducers, (see 2). Screw terminals are carefully tightened. No corrosion on any connection points. No loose ends in the wires causing short cuts to adjacent wires. Cables for damage, that no cables are squeezed or worn. Battery voltage is sufficient, should be at least 10V DC. The fuse is not blown and the circuit-breaker has not opened. The fuse is of the right type. Two instruments do not have the same ID number, (see 3). 18
7.2.2 Fault - action 1. Speed functions: Check if the paddle wheel is spinning Check if the transducer is connected the correct way Irregular values: Check the speed damping (SEA) 2. Compass: Is the compass calibrated Irregular values: Check the compass damping (SEA) 7.2.3 NMEA Out The NX Compass has a NMEA out port at the back of the instrument. It will always send the following sentences: 1. HDG - Heading, Deviation and Variation 2. HDT - True Heading 3. *HDM - Heading Magnetic 4. MWD - Wind Direction and Speed 5. MWV - Wind Speed and Angle 6. MTW - Water Temperature 7. VHW - Water Speed and Heading 8. VPW - Boat speed parallel to wind 9. *VWR - Apperent Wind angle and Speed 10. *VWT - True Wind Angle and Speed 19
8 Specifications 8.1 Technical specifications Wind Instrument Dimensions: Instrument cable: 113 x 113 x23 mm (4.3x4.3 inch). 8 m (26 ft). Power supply: 12V DC (10-16V). The instruments are polarity protected Power consumption at 12V: Instrument: 0,08W with maximum lighting 0,8W. Temperature range: Weight: Enclosure: Storage: -30 to +80 C (-22 to +176 F) Operation: -10 to +70 C(14 to +158 F) Instrument: 260 gram (9.17 oz). Transducer: 45gram Water proof CE approval The products conforms to the EMC requirements for immunity and emission according to EN 50 08-1. FCC approval This device complies with part 15 of the FCC Rules Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. The user may not change or make modifications not expressly approved by the party responsible for this compliance. 9 Warranty The warranty period for these products is 2 years for instruments and transducers. For consumables as batteries o-rings etc. the warranty period is 6 months. For the complete warranty conditions, see next page. 20
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Copyright : Nexus Marine AB Karlsbodavägen 20B, 168 67 Bromma, Sweden Tel: +46 -(0) 8 506 939 00. Fax: +46 -(0) 8-506 939 01 www.nexusmarine.se 25 232021 Edition 1