KVH Azimuth Sailcomp 103ac 2nd Dis 02 0407 103ac Additional Disp
Contents
1. Pencil e Center punch Silicone type sealant optional INSTALLATION Following are detailed step by step instructions for correct installation of each compo nent Make sure that whoever is going to install your Sailcomp 103AC is very familiar with these installation instructions and understands the principles of installation that will ensure that your compass has the precision convenience and usefulness for which it is designed 2 Choosing a Location The first step necessary for installing each component is choosing a good location Determining a good location for each component is necessary before mounting to ensure that the provided cable is long enough for your installation Fluxgate Sensor The greatest advantage of having an electronic compass is that the sensor can be locat ed virtually anywhere on the boat This ability results in superior compass accuracy because the sensor which determines the boat s heading can be placed away from magnetic interference This removes the limitation of a conventional compass that must be wholly located where the compass rose is visible to the skipper Ideally the sensor would be mounted near the center of gravity but as this is often impractical on many boats it is not critical Note The Sailcomp 103AC s AutoComp 1000 fluxgate compass sensor does not contain mag nets it measures the earth s magnetic field electronically Large pieces of metal will distort the earth s flux lines which2. on or oFF is displayed To exit the Compensation Display apply two short pushes to the crs course button Whatever was flashing on the display on or oFF will be activated and the display will return to compass mode ll SAILCOMP 103AC FEATURES 1 Sailcomp Features The Sailcomp 103AC is very straightforward in its operation The junction box con trols on off the damping and the light The remote keypad has five buttons which control the system s 5 modes Trend Mode Off Course Mode Nav Repeater Mode Head Lift Mode and Starting Timer Mode Port and Stbd The port and stbd buttons are for the Head Lift Mode They are used to enter your port and starboard tack averages for racing Nav When connected to a NMEA 0183 navigation unit such as a loran or GPS the nav button turns your Sailcomp 103AC into a loran or GPS repeater Once connected to a loran or GPS pushing the nav button makes the Sailcomp 103AC go into Nav Repeater Mode The display will alternate every 2 seconds between Bearing to Waypoint and Distance to Waypoint in nautical miles Cross Track Error is shown in 05 nm increments to port or starboard on the upper part of the display Note If the Sailcomp is not connected to a loran GPS if the loran GPS is not ON or if way points are not entered into the Loran GPS the Sailcomp 103AC display will display when the nav button is pushed Timer The ti
3. 9 a great magnetic location 9 and that this is your first compensation 1 If the first digit is lower than a 7 you should turn another 360 to try and get a better compensation If the second digit is lower than a 4 you may consider moving the sensor to a better magnetic location However even with a 3 or lower as long as the first digit is a 9 you should have 1 accuracy Note In rare cases the magnetic field of a particular location may be so different from the fac tory calibration that the sensor will re compensate every 36 while doing a 360 turn Do not be alarmed if the compensation display shows that more than one compensation has taken place or compensation takes place be fore you complete a circle Just make sure that you complete at least one full slow circle Multiple compensations are an indication that the sensor is rapidly receiving better and better information and is updating its stored information for greater accuracy If you ever significantly change your boat s latitude or make changes on your boat install new equipment run cables etc which may affect the boat s magnetic field or if you are ever in doubt as to the Sailcomp 103AC s accuracy simply follow the auto compensation procedure on pages 17 19 to be assured that it is accurate at all times To exit the Compensation Display apply two short pushes to the crs course button and the display will return to Compass Mode The last digit ro
4. Display on the bulk head mounted alone in the cockpit or pod mounted on a steering pedestal for easy access As the keypad is a flushmount assembly keep in mind that it should be mounted on a relatively flat surface to avoid unnecessary stress on the watertight seal If the chosen spot is not perfectly flat use a small block of wood to make a flat mount ing plate 3 Checking Cable Lengths At this stage you can determine if the provided cable is sufficient for your needs If it is not there are two options 1 move the critical component to a new location that can be reached by the provided cable 2 Purchase an extension cable available in 15 and 25 lengths by contacting your local dealer The system may have up to 100 of extension cable added without losing signal integrity Never try to extend or cut the display cable keypad cable or sensor cable This will not only seriously damage your compass but will also result in voiding your war ranty The only cables that you can extend yourself are the power cable wires and the NMEA 0183 interface wires 4 Mounting Mounting is as critical to the performance of the system as the right location so make sure that you or whoever undertakes the task fully understands the objectives Sensor Unit Before mounting the sensor care must be taken to align the arrow on the top of the sensor and or the nib protruding from the front of the base of the sensor parallel with or along the cent
5. boat uses an outboard motor oftentimes when the spot for the sensor is chosen the installer forgets that the outboard is a large mass of metal which changes position on the boat from storage location to its position when in use Check that your sensor s location will not be affected by the motor in either position 4 stereo speakers contain strong magnets Placing the sensor near them will cause extreme compass errors 5 nav station communications equipment in your nav station VHF or SSB contain speakers Placing the sensor within close proximity will result in error 6 electric motors all electric motors create magnetic fields which can cause signifi cant errors Since some motors like refrigerators and bilge pumps switch on and off at unpredictable times keep the sensor away from them 7 other magnetic compasses compasses mounted or stored down below including some sensors from your other electronic gear should be kept away from the sensor This is a partial list Use common sense A distance of approximately 5 feet is usually sufficient for eliminating any inaccuracies caused by an object that is a source of magnetic interference If this proves next to impossible on your boat position the sensor in the best place possible The Sailcomp 103AC s AutoComp 1000 heading sensor has an automatic compensation feature which will compensate out any error as long as there is not so much interference that it overloads the sensor I
6. junction box Every time you turn the unit on the display goes through a segment test where all segments are lit for 3 seconds HEAD TALLI HEAD LIFT eg Us eS o uto 20 20 r nn Bah lal Vand Do not push any buttons during this segment test If a button is pushed an unfa miliar display may appear If so turn the power off and on again 2 Check that the Sailcomp 103AC s digital heading readout agrees approximately with a known heading or your boat s recently compensated card compass If it is not check to make sure that the sensor is installed top up and that the arrow on the sensor unit is pointing exactly forward If the Sailcomp s heading is off and you have checked that the sensor unit is installed correctly this indicates that you have some type of magnetic interference on your boat that must be com pensated out of the Sailcomp 103AC You are now ready to compensate your Sailcomp 103AC 7 Auto Compensation ALL COMPASSES MUST BE CAREFULLY CHECKED AGAINST KNOWN REFERENCES AND OR BE COMPENSATED BEFORE BEING USED FOR NAVIGATION The Sailcomp 103AC s auto compensation capability automatically measures the sur rounding magnetic field distortion and compensates it out thereby removing the resulting heading errors and giving you a system with better than 0 5 accuracy in most cases Although each Sailcomp 103AC is carefully calibrated at the factory during manu facturing you should intentionall
7. only fit onto a port in one position and is removed by pushing in on AD the grip surfaced part of the connector and A pulling the connector straight off push DO NOT TWIST See illustration left 1 Connect the larger grey 12 pin connector coming from the sensor unit to the correct port on the junction box This connector will only fit into one port on the junction box Push the connector onto the port until it clicks 2 Connect the cable coming from the remote display to one of the grey remote dis play ports on the junction box There are two ports either may be used 3 Connect the black connector coming from the remote keypad to the black port on the junction box If a third remote display is desired Y connectors are available INSTALLATION Now you are ready to connect your system to power your NMEA 0183 loran GPS for the Nav Repeater Mode as well as interface it to other instruments on your boat if desired The power cable comes out of the junction box and should be connected as follows 1 Connect the red wire to a 12V DC power source which is fused 1 amp There is no internal fuse in the Sailcomp 103AC to protect it from current overloading 5 Connect the black wire in the power cable to Ground There is also a cable coming out of the sensor with 4 wires These wires connect the Sailcomp to your NMEA 0183 loran or GPS so that you can activate the Nav Repeater Mode and also connect to your other ele
8. Congratulations You have purchased the finest electronic heading detection system available today The Sailcomp 103AC digital compass nav repeater is a microprocessor controlled sys tem designed to provide you with the heading and navigational information you need for precise navigation By incorporating a digital computer with our sophisticated fluxgate compass and then adding a nav repeater capability we have produced a sys tem that combines excellence in performance with maximum reliability and naviga tional functionality For those of you that race the Sailcomp 103AC s racing features will provide a tactical advantage that will help you win races Should you have any questions comments or suggestions please direct them to Sailcomp 103AC KVH Industries Inc 50 Enterprise Center Middletown Rhode Island 02842 U S A tel 401 847 3327 fax 401 849 0045 Contents I INSTALLATION INSTRUCTIONS 1 Parts List and Tool Requirements oos T eR Yemen 6 2 Choosing a Location cose otv eot au nee reve dd 7 3 Checking Cable Lengths 46 eu rro A dE Btn whee e niea 11 4 Mounting iae pai mea e dera Meecsca mel aac oem aes alas Dey 11 5 Making the Connections 2o Vr uten REL cas 14 D TOU aant dala gears de e aeg p ERA Ree ate Og ra t db AP 7 16 Z PIO OMI PENSAHON Ss eese Us ee OR IRR PERROS 17 Accessing Compensation Display 2 ve eser aA wA 19 Alignment Error Adjustment 295 acce See bro cenas 21 Disabling Auto Compensa
9. ay s light is turned on Although the junction box is weatherproof and water resistant it is intended to be mounted in the boat cabin or a weather protected area When picking a handy location make sure that the junction box s two conductor power cable is able to reach either your boat s 12 volt battery or the electrical panel If the cable does not reach use a similar gauge wire to extend it For boats without a bat tery or electrical panel KVH offers a compact rechargeable 12 volt battery see Batteries on price list 10 INSTALLATION Display Unit The remote display is completely waterproof so you can put it wherever is most con venient and visible for both skipper and crew Remember that the display is a repeater and not the sensing device so it is not sensitive to nearby metal or magnets nor does it contain any metal or magnets It will not affect other instruments or con ventional compasses Furthermore the cable is shielded so R F interference should be minimal There are various spots which other sailors have found to be ideal display locations on their boats But as with everything every sailor has his own preference Here are some often used locations to consider for your installation 1 On either side of the bulkhead This is usually a good spot on both large and small boats and is quite visible to the helmsman 2 On the mast This location is very popular among racing boats 35 feet and small er as it allows
10. ctronics that take NMEA 0183 so that they can access the Sailcomp s heading data The NMEA lines are used only for interfacing Note Any wires that are not used should be clipped back and insulated from one another The wiring is as follows Nav Repeater Mode brown NMEA 0183 In blue NMEA 0183 In NMEA 0183 output to instruments that require heading information green NMEA 0183 Out orange NMEA 0183 Out shield not used clipped back white not used clipped back red not used clipped back black not used clipped back 1 The brown and blue wires are for connecting a NMEA 0183 loran or GPS to your Sailcomp 103AC so that your Sailcomp 103AC doubles as a nav repeater If these wires are not used they should be clipped back and wrapped with electrical tape To connect the Sailcomp 103AC to your NMEA 0183 loran or GPS The configuration of the signal wiring will vary depending on the brand of loran or GPS that you have and what parts come with it Use only a 12V DC power source 16 INSTALLATION There are three variations A The loran GPS may have a connector wired to a cable with a pigtail of colored wires In this case consult your loran GPS owner s manual for the wire color code B The loran GPS may supply only a connector without a pigtail of wires The NMEA data would then be accessed through the pins on this loran GPS output connector Consult your loran GPS manual or contact your loran GPS manu
11. ensation circles may be clockwise or counter clockwise take 30 seconds or more to complete 90 degrees To Compensate the Sailcomp 103AC 1 Select a calm day and a clear area without too much current or tide Watch out for excessive pitching and rolling as this can make your boat turn in surges faster than the Sailcomp 103AC sensor will accept This procedure should be done under power not sail if possible INSTALLATION AUTO COMPENSATION 2 Turn ON the Sailcomp 103AC and note the heading so that you will roughly know when you have completed a full circle 3 There is no Compensation Mode or buttons to push just steer your boat at a slow steady speed idle speed through a full circle that takes at least 2 minutes to com plete Try to time your turn so that it takes 30 seconds or more to turn 90 degrees After completing one full circle continue circling another time Try slowing down even more and concentrate on keeping the boat steady and smooth throughout the 360 Remember the circles do not need to be perfectly round as long as you go a complete 360 degrees around 4 Once you have completed two full circles your compass should be compensated Check to make sure by accessing the Compensation Display to review your auto compensation and to check that everything is O K see below Accessing the Compensation Dis play for Reviewing Compensation Data on the Sailcomp Remote The Sailcomp 103AC s Compen
12. entered for A Offset from the factory this will be 00 You need to add 2 to all headings to adjust for the A error so push and hold down the nav button until 02 appears on the display and then release the button Exit by push ing the crs course button again Now when you point to your reference of 180 the Sailcomp will display 180 Very Important Once the Alignment Error is adjusted it is stored in memory and never has to be re adjusted unless the sensor is moved Disabling Enabling Auto Compensation With auto compensation disabled your compass will be using the last compensation that has been stored but will be unable to update itself if something changes in the boat s magnetic environment etc In essence it is locked If you want to disable or enable auto compensation enter into the Compensation Display by simultaneously pressing the timer and crs course buttons until CAL appears Release the buttons and on appears followed by 3 digits 424 Hold down the port button and the display will toggle between oFF and on Release the but ton while oFF is displayed to disable auto compensation Important Note Be sure that Damping Knob is in Position 1 while disabling or enabling auto compensation Auto compensation may be turned on off in the Sailcomp 103AC whenever desired Just be aware of what state it is in You may check this at any time by entering into the Compensation Display and watching whether
13. erline of the boat The arrow must be facing forward 11 A second keypad may be added to the system for convenience using a Y Box Connector Contact your dealer or KVH INSTALLATION 1 Align sensor as shown on left 2 Drill 9 64 holes in the center of the three slots in arrow point the base of the sensor 3 Put one of the provided 3 4 10 self tapping mounting screws into each of the sensor slots and tighten down Never open the main sensor housing as this will void your warranty Remote Display Unit After you have carefully chosen a flat surface for the remote display or have cut a small block of wood to serve as the display s flat mounting plate follow these instruc tions carefully Note If it is impossible to reach behind the display to put nuts on the studs you may have to build a mounting plate that you can screw in from the top 1 Tape the template provided at the back of this manual to the bulkhead or area where you want to mount the display Use a center punch on the crosshairs indicated on the template Drill four 1 4 holes for the enclosed 10 32 studs Then drill the 9 16 hole for the cable and connector The hole must be large enough so that the connector can pass through Never try to remove the connector from the cable Screw the four 10 32 studs into the back of the display Check if the display slides easily into the four holes Correct the hole positions if necessary Do not force the dis
14. f your boat has severe magnetic interference problems it would be prudent to connect and power P 4 the system before installing your sensor If gt the display flashes an Er1 message then J 7 there is so much magnetic interference at the sensor s location that the sensor is over loaded and cannot be compensated The sensor must be moved to the next best location where you do not get the Er1 mes sage see Er1 pg 37 INSTALLATION Lastly the sensor must never be mounted on its side or upside down The top of the unit has the cables exiting the words KVH AUTOCOMP 1000 and a directional forward arrow The sensor is internally gimballed to ensure accuracy when the boat heels but make sure to position the sensor as close to horizontal as pos sible in relation to the boat to maximize the use of the gimbal for heeling purposes If you must mount the sensor against a vertical bulkhead use a right angle bracket to keep the sensor horizontal KVH offers an optional sensor bracket for this purpose see Mounting Brackets on price list After finding the best spot for the sensor select good locations for the junction box remote display s and remote keypad to ensure that the provided cable is long enough for your installation Junction Box The junction box should be placed in a handy accessible place since it is where 1 the Sailcomp is turned on off 2 the damping is adjusted 3 the remote displ
15. facturer directly to obtain the color code and connector pinout C The loran or GPS may provide nothing at all In this case you must consult your dealer or loran manufacturer to obtain a plug and the required informa tion After you have determined the configuration of your loran s or GPS s signal wiring a Connect the blue wire NMEA In to the loran or GPS NMEA Data Wire signal side b Connect the brown wire NMEA In to the Signal Ground point on the loran or GPS unit 2 The green and orange wires in the power cable are for outputting heading data from your Sailcomp 103AC to your other instruments with NMEA 0183 data for mat If these wires are not used they should be clipped back and wrapped with electrical tape Optional interface outputs that you may have ordered may also be included in this cable See separate instructions for any optional interfaces that you have purchased Now the unit is ready to power and test 6 Testing Testing lets you try out the various functions of the Sailcomp 103AC to make sure everything is working correctly Furthermore all compasses must be checked for accu racy once installed on a boat The Sailcomp 103AC has an automatic compensation feature which must be performed after installation to ensure that any errors caused by your boat s magnetic field are compensated out Auto Compensation page 17 INSTALLATION AUTO COMPENSATION To test the unit 1 Turn the power ON at the
16. g for your desired course When the desired course appears on the display push the crs course button again The upper display will show a single segment on either side of center to indicate that this is now the reference heading The digits momentarily freeze on the new heading while you hold the button down This will now be the reference course stored in the Sailcomp s memory see illustration on facing page Do not hold the button down for more than two seconds or the system will return to Trend Mode In Off Course Mode the digital display continues to display the current compass head ing while the upper analog display graphically shows how far off course the current heading is to your reference course When you steer off of the reference course you will see segments to the left and right on the upper part of the display corresponding to how many degrees to port or starboard you are off your reference course s rhumb line By centering the upper display so that there are no segments to the left or right you will be steering to your reference course see following illustrations ES H e 4 n Pour d 4 R ES um a a fy Zu a23 aur Lk AL f al Lk on course course 342 offcourse to port 45 off course to starboard 4 4 If you want to enter a new heading just press the crs button again Once you are in the Off Course Mode each subsequent push will enter the compass current head i
17. lls over to a 1 after 9 compensations Alignment Error Adjustment Now you should check to see how well you aligned the sensor parallel with the cen terline of your boat To check the sensor s alignment take a couple of known runs from a chart and compare the magnetic bearing on the chart with the heading readout on the Sailcomp display If the Sailcomp reading is off by the same amount of degrees in a couple of directions then every reading around the compass will be off by exactly that amount This indicates that the sensor is not pointing exactly forward in respect to the bow of your boat Rather than rotating the sensor slightly to adjust for this Alignment A error you can adjust it electronically 1 Enter into the Compensation Display as indicated on pages 19 20 To adjust for A error apply a short push to the cr course button The display will show AoF indi cating that you have entered the Alignment wd nl Offset section of the software Vt LE r El 2 To examine the value for the A offset apply a short push to the nav button The display will flash the current value of the offset Offset is set at the factory to 00 3 If the heading is low or to the minus side on all headings you need to add offset To increase the A offset hold the nav button down until the desired plus value is displayed 4 If the heading is high or to the plus side on all headings you need to
18. mer button puts the system into Starting Timer Mode and displays the time remaining until the start of a race Crs Course The crs button serves two main functions It sets the course that you want to use as a reference for the off course indicator and it also allows you to change between Trend Mode and Off Course Mode 2 Damping Control The damping knob on the junction box controls the averaging period over which the compass displays information Damping does not diminish the accuracy of the Sailcomp 103AC like it does in a conventional compass The damping levels range from 1 4 with damping 1 a nearly instantaneous readout and damping 4 about 14 sec onds of averaging On most boats damping 2 or 3 is the most stable and responsive If you are in rough seas you may want to increase the damping so that you get a more stable display In calm water or at lower speeds you may want to decrease the damp ing so that the display responds more quickly 23 24 Ill SAILCOMP 103AC MODES The Sailcomp 103AC s 5 modes Trend Mode Off Course Mode Nav Repeater Mode Head Lift Mode and Starting Timer Mode are all explained in detail on the fol lowing pages 1 Trend Mode Every time the compass is turned ON it automatically goes into Trend Mode Trend refers to the rate of turn The purpose of the trend indicator is to help keep you orient ed in terms of how fast you are turning to the left or to the right something that can be diffic
19. ng as the reference course The upper display will instantly lock into this new set course Note Every time you turn OFF the Sailcomp 103AC it will reset to a default reference course setting of 000 Getting Back to Trend Mode Once you are in Off Course Mode each time you push the crs button a new reference heading is entered However if you hold the button down for two seconds or more the compass will go back into Trend Mode The word Trd appears where the digits normally are to tell you that you are now in Trend Mode ww i N I 2 25
20. ovided at the back of this manual to the spot where you want to mount the keypad Use a center punch on the crosshairs indicated on the tem plate 2 Drill the two 5 32 holes for the enclosed 6 32 studs Then drill the 3 4 hole for the cable The hole must be large enough so that the cable clamp on the back of the keypad can pass through Never try to loosen the cable clamp or remove the connector from the cable 3 Screw the two 6 32 studs into the back of the keypad Check if the keypad slides easily into the two holes Correct the hole positions if necessary Do not force the keypad if the holes don t line up 4 Remove the keypad apply some silicone type sealant around each hole and push INSTALLATION the cable and keypad in 5 Use the provided nuts and washers 6 32 to secure the keypad Do not over tighten A dab of silicone on the threads will keep the nuts from loosening 5 Making the Connections You are now ready to connect the components together The connectors ee are easy to use and unable to be incorrectly fitted The cables from the sensor remote display and remote keypad each have a connector that plugs into a port on the front of the junction box The junction box is con figured as shown right sensor add l display keypad power cable display cable cable cable The connectors snap into the ports You will hear push the connector click twice when it is fully snapped onto the port A connector will
21. play if the holes don t line up Remove the display apply some silicone type sealant around each hole and push the display all the way in Use the provided 10 washers and nuts to secure the display Hand Tighten Only Overtightening the screws will damage the display A dab of silicone on the threads will keep the nuts from loosening INSTALLATION Junction Box Use the four 6 mounting screws to mount the junction box The screw holes are only accessible from the inside of the junction box To install 1 Unscrew the four screws on the top of the junction box and carefully let the cover hang down 2 Let the cover hang down trying not to strain the ribbon cable that goes to the power light switch and the damping control knob which are located in the cover 3 Mark where the holes are in the box and drill 7 64 holes Position the junction box over the holes insert the four 6 screws and tighten securely Insert screws in inner holes 4 Replace the cover and tighten the cover screws The waterproof seal is reinstated by tightening the cover screws as the mounting screws lie outside the inner rubber gasket Remote Keypad After you have carefully chosen a relatively flat surface for the remote keypad follow these instructions carefully Note If it is impossible to reach underneath the keypad to put nuts on the studs you may have to build a mounting plate that you can screw in from the top 1 Tape the template pr
22. rranty amp Protection Plan is sov ss teer need 47 8 Remote Display Template noted yaaa vea dm rr sace 49 9 Remote Keypad Template osa elus onere 51 CONTENTS INTRODUCTION Before you begin Important Before you jump into your installation 1 Please read this manual thoroughly The correct installation of the Sailcomp 103AC is of utmost importance to its accuracy and precision and most of all to your enjoyment of your new electronic compass nav repeater Serious damage inaccuracies or loss of warranty can result from incorrect installation 2 Please send your warranty card back to ensure validation of your warranty KVH must have a completed warranty card on file I INSTALLATION INSTRUCTIONS 1 Parts and Tools There are four components to the standard Sailcomp 103AC They are e Remote Display w 15 cable e AutoComp 1000 Sensor Unit w 15 cable amp 15 NMEA 0183 cable e Junction Box w 10 power cable You have also received a bag with mounting hardware This includes Fluxgate Sensor Unit e 3 3 4 10 self tapping screws Junction Box e 4 3 4 6 self thread screws Remote Display Unit e 4 1 3 4 10 32 studs e 4 10 32 hex nuts e 4 10 washers Remote Keypad e 2 1 6 32 studs e 2 6 32 hex nuts e 2 6 washers Tools Required e Drill e 1 4 7 64 5 32 amp 9 64 drill bits e 3 4 drill bit or hole saw Phillips amp flat screwdriver e 3 8 amp 5 32 nut driver wrench socket
23. sation Display allows you to critically examine the quality of a compensation the quality of the sensor s location how many auto com pensations have occurred and lets you disable auto compensation To see compensation data on the display 1 Turn the power ON and wait until the display has gone through self test 2 Simultaneously push and hold down the timer and crs course buttons until the display reads CAL rnm Llc Lt Once CAL is displayed you may release the button The display will now continuously roll through the following on indicates that auto compensation is enabled oFF indicates auto compensation is disabled see page 22 19 If desired you may have the Compensation Display ON when doing compensation circles so you can see when the compass has auto compensated 20 INSTALLATION AUTO COMPENSATION three digits are displaying auto compensation data a 000 indicates that the system has not been auto compensated A The first digit 1 9 indicates the quality of A B C the compensation with 9 being the best B The second digit 1 9 indicates the quality wi r1 4 of the magnetic location with 9 being the a best l p C The third digit is a rollover counter incrementing 1 digit each time the Sailcomp has accepted a new compensation For instance if you got the above 991 it would indicates that you had a great com pensation
24. sub tract offset To decrease the A offset hold the port button down until the desired minus value is displayed 5 To change the offset use the nav and port buttons to scroll up or down the correct number of degrees 6 To save the A offset and return to compass mode apply a short push to the crs course button The new A offset will be stored in memory and the display will return to compass mode Notice that the Sailcomp s headings will now match the known headings Note Do not turn the 103AC s power OFF for at least 10 seconds after exiting the Alignment Offset Mode to allow the system to update and record the data in long term memory 21 The Sailcomp 103AC is more accurate than any compass you may have on your boat so do not use another compass as a reference 22 INSTALLATION AUTO COMPENSATION Example After auto compensation a comparison of a couple of Sailcomp 103AC headings with runs from a chart indicate that the Sailcomp is reading 2 lower than it should be For instance instead of displaying 180 it is displaying 178 This means that the sensor is pointing to the left of the boat s centerline by 2 To correct this enter into the Compensation Display by simultaneously pushing the timer and crs course buttons until CAL appears Now enter the Alignment Offset section of the software by pushing and releasing the crs course button Apply a short push to the nav button to examine the value
25. the sensor measures thus causing some error To minimize compass errors select a location for your sensor that is as far as possi ble from iron steel or magnetic fields while still being close to the boat s center of gravity Placing the sensor center fore and aft is more important than center athwart ships We also recommend placing the sensor below the waterline or as close to it as possible Each compass is calibrated at the factory so the more carefully you place the sensor in your boat the less compensation will be needed As you look around the boat for a convenient spot that is far from metal or objects that can have strong magnetic fields and is as close to central as possible make sure to avoid the following spots 1 under the sink although most sinks are made of stainless steel and will not affect the compass don t forget that sinks are often used as a good spot to place stray tools winch handles metal utensils cans of food or pots and pans Result A vari able mass of metal that becomes a moving mass as the boat rolls causing strange compass swings for no apparent reason Also note that a porcelain sink is enam elled iron and will cause extreme compass errors 2 next to the tool box another mass of metal potentially moving when heeling that INSTALLATION is often overlooked or not in position when the sensor is installed because you re using your toolbox when installing it 3 next to the boat motor if your
26. the skipper to keep his head up This is also a great location because it makes the display visible to the entire crew KVH offers special single and dual display mast brackets which attach to the sail slot and slide into the mast The brackets are designed so that the Cunningham and other control lines can be led through them without obstruction see Brackets on price list 3 Pod mounted on a steering pedestal Check with your steering gear manufacturer for details When determining the right spot for the display on your boat keep in mind that the display must be mounted on a flat surface to avoid unnecessary stress on the watertight seal If the display is installed on a surface that is not flat you can break the seal on the display causing it to leak as the flat display will bend to conform to the curved surface If your spot is not perfectly flat use a small block of wood to make a flat Do not mount on mounting plate If using a Sailcomp didi mast bracket this is not a concern as the bracket is specifically designed for the display Up to 4 displays may be added to the system if desired There is an additional port on the Junction Box for the second display but a Y Box Connector is needed for the 3rd and 4th dis plays Contact your dealer or KVH INSTALLATION Remote Keypad The Remote Keypad is completely waterproof so that it can be mounted wherever is most convenient on your boat It can be stacked with the Remote
27. tion 5 6 00 cece eens 22 Il SAILCOMP 103AC FEATURES L Sailcomp Features usexs eee Pese Y IE YEN in E Rab 23 2 Damping Control a3 dtd epe doe Cop EG ele cl abe a 23 lil SAILCOMP 103AC MODES Lend Mode 6 03 65 66 oae aee Dus aide e Ta Ah wean 24 2i Off Cours Mode spi iren Eu aree a emori pee a 24 9 Nay Repeater Mode eai za dieat ap A eee dca Pas ea d do dani 26 4 Head Lift Mode san oorr o UR Ro a eR 28 5 Starine Diner Mode ius euc err ER YR S aes S by Jor 29 6 Switching Between Modes 45 sinh so pou deed ueber tbe 30 IV RACING WITH THE SAILCOMP 1 Shooting tlie Wind sser Ten sep ARRAN bo BOR Sat da 32 Dh TheStar ng Line ce ay atat ver e dap An Da Ow ad bd ede 32 3 UME BLAME pP PUN 32 4 The First Upwind Leg iiU XVn a Rn eR RC Gwar 33 5 The Downwind Leg rr eter ciate Natacha ital accel ta t Sdodatedoes ttd 35 6 The Second Upwind Leg ici nus hws Racer eae ested 35 V SPECIAL FUNCTIONS 1 True North Capability 454p LES ERI eL eda 36 2 Warning Messages SERI SC bor DAE teles au seat Nar ES RR ER E Red qu 37 SAR e DOE kan weeny gas bo Meats Scuba n EOD 37 VI APPENDIX 1 Technical Specifications a esee diete aie won p AD ds 38 25 Troubleshooting e vanacs kc e beta A T E aA 39 3 gt Witing Data S 3013 ran ede dete SERRE a A ad eus 43 4 NMEA 0183 Interface Output ases ese hee d ees 44 5 Nav Repeater NMEA 0183 Input oi xu Veo Seen 44 6 Compass Notes x teneis eco Vor Brot d qe are Are cL a ed 46 7 Wa
28. ult to perceive with a digital readout alone 2 Off Course Mode Trend Mode only shows your rate of turn It does not show you how far off course you are To do that you need to enter a reference course so the Sailcomp knows where you want to go You can enter a reference course only when you are in the Off Course Mode In the Off Course Mode your present heading is compared to a refer ence heading that you have selected and the difference is displayed in degrees with segments to the left or right on the upper analog display The Off Course Mode is very useful for sailing long or short distances as it enables you to set a rhumb line and then sail to the upper analog display steering to left or right to keep the segments zeroed out To use the Off Course Mode 1 Turn the Sailcomp ON You are now in Trend Mode 2 The first push on the crs course button puts you into Off Course Mode The word Crs appears where the digits normally are to tell you that you are now in Off Course Mode The Sailcomp will use whatever heading was previously stored as the reference heading The default setting is 000 and resets to this every time the unit is turned off 1 port and 1 stbd segment appear on each side of upper analog display 4D lt E gt D Display freezes on selected heading Set Course 342 MODES OFF COURSE TREND 3 Point your boat in the direction you want to go steering to the digital headin
29. y auto compensate it on your boat after installa tion so that any errors due to metal and magnetism in your boat are removed 17 18 INSTALLATION AUTO COMPENSATION The Sailcomp 103AC is shipped from the factory with auto compensation enabled Every time the vessel completes a 360 turn within the time constraints of the system the sensor will check its accuracy and recompensate itself if required Both hard magnetic and soft iron errors are automatically compensated by this procedure This procedure will produce excellent accuracies 1 even on steel hulls The Sailcomp 103AC may recompensate itself during normal boat use anytime the boat completes a 360 turn within the time constraints and the resulting data is 25 better than the previously stored data for the sensor Important Read before compensating for the first time Intentionally compensating the Sailcomp 103AC at installation is very important to ensuring its accuracy on your boat and is very easy to do It involves turning your boat through two large lazy circles at a slow steady speed the circles may be slightly out of round or elliptical if necessary During this procedure it is critical that the boat remains level and slow enough idle speed so that a full circle takes at least 2 minutes to complete You cannot go too slowly but if you go too quickly at any point while doing the circles the sensor is programmed to ignore the data to ensure a perfect com p
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