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Table of Contents Notice Introduction nect to the transducers and 12 volt power The transducer information isIntroduction Modern navigation electronics are Datamarine is pleased you have converted by the main unit to Link remarkably accurate and free Nevertheless information from chosen the Link 5000 System for format and is transmitted on the LinkSystem Configuration your boat We know you will be network Additionally the 5100 main your Link equipment or from any ii satisfied with your decision unit has a liquid crystal display and aInstallation other navigation aid should not be The 5000 is part of the techni keyboard for display selection Main Unit relied upon exclusively Instruments cally advanced Link family which The 550 remote is the most Transducers can fail due to interference faulty uu allows it to be networked to any common remote display for the Link 550 Remote transducers incorrect installation other Link instrument Powerful and 5000 System although other Link instrument malfunction and operator flexible systems are easily config remotes may be used instead of orOperation error Always analyze Link informa Depth ured for your particular requirements in addition to the 550 The 550 tion and cross check with all other These state of the art instru receives wind speed and depth Speed Log available navigational techniques Wind ments use only the finest materials information via the network It per The prudent navigator will never use and are manufactured in the United forms calculations and displays the Compass a single navigational aid exclusively Loran States by people who want to pro results at the remote location Remote duce a quality product To serve you The significant features of the equally well after your purchase we 5000 system are listed below Warranty Information maintain a complete service record on each instrument and we ask that Model 5100 NAV Station Main Unit you help us serve you by promptly Depth Functions egistering your Warranty 25 feet 399 feet or equivalent in 3 TOrealize the full potential of your Link instruments please take a meters or fathoms selectable by below 20 feet few minutes to read through the meters or fathoms manual before installing your units 39 position alarm main unit alarm setting independent of remote alarm Features Depth offset 4 feet above to 8 feet below the transducer The Link 5000 System is a network Remote alarm output 12VDC 05 of advanced microcomputer based amps instruments designed for moderate Alarm mute control silences main size racing and cruising sailboats as unit and all other units on the well as fine motor yachts It inte network grates the important functions of speed depth wind compass head Speed Functions ing and loran data into a single main 000 to 350 knots or 40 MPH unit This main unit model 5000 or actual speed with trend indicators 5100 can communicate via the Link Average speed resettable network to any of several dozen dif VMG ferent Link instruments This makes upwind or downwind the system flexible and expandable Logs The Main Unit either the a 000 to 2000 miles resettable 5000 or 5100 serves as the trans b 00 to 10000 miles accumulating ducer interface point Connections Timer count up to 20 hours All rights reseedNo part of this work are made here to the wind speed 00OO to 1959 MinSec covered by the copyrights hereon may be and depth transducers as well as 0020 to 1959 HrsMin reproduced or copied in any form or by any the primary connection to the elec Sat Nav output 200 Pulses per means graphic electronic or mechanical Mile relay switch closure 50 including photocopying recording taping or information and retrieval systems without i 12 nic compass loran and Sat Nav e 5000 and 5100 are termed 2 duty cycle Odjjyright 1985 written permission of Datamarine lnternationaj Main Units since a system must Four levels of damping to smo Datarnarine Inc contain at least one of these to con speed displayWind Functions Apparent wind speed and angle Model 5000 Standard Main Unit Specifications identical to 5100 System True wind speed and angle main unit without LCD display Configuration Four levels of damping to smooth 00 to 10000 miles accumulating wind speed and angle display log Compass Functions Model 550 Remote Display T MASTHEAD SENSOR Displays boat heading in degrees h i magnetic 25 feet to 999 feet or equivalent Displays true wind direction in in meters or fathoms w 5 5 0 REMOTE degrees relative to magnetic north 46 position alarm independent of LINK NETWORI Transmits heading onto Link net main unit alarm work for use by any other Link Alarm mute control silences instruments remote and all other units on theLoran Functions network I Interfacesto LoranC receivers SAT NAV OUTPUT Speed Functions 5 0 0 0 OR 5100 with the CDX output 2 0 0 PPM 000 to 350 knots or 400 MPH M A I N UNIT Transmits Loran data onto Link Speed trend indicators REMOTE ALARM network Average speed resettable and A A A Y independent of main unit Interfaces VMG DATA INPUT Depth 205Khz model DX111 nylon low profile upwind or downwind Speed model SX115 nylon low Timer 0 to 20 hours resettable and independent of main unit DEPTH profile Trip log to 2000 miles resettable XDCR Wind model WX175 with 80 of SPEED COMPASS cable and independent of main unit XDCR INPUT Compass Optional model 4 position electronic damping L500 Nl format Wind Functions Figure I Compatible with existing Analog display of apparent wind transducers analePower i G t adisplay l of apparent wind The 5000 or 5100 main unit acts information Except for receiving its 1016VDC speed as a signal conditioner for the speed data from the main unit the remote 02 amp day Four position electronic damping depth wind and compass trans works quite independently from the 04 amp night Power derived from Link network ducers and the loran data It con main Among other things it calcu Reverse and overvoltage pro 01 amp day verts this Raw Data to Link format lates its own elapsed time log tected to rt20 VDC information and transmits it onto the accumulations average speeds and 02 amp maximum night Power off continuous memory of depth alarm settings Power off continuous memory of Link network for possible use by any alarm setting depth units damp alarm setting depth units damp other Link instrument By making the main and ing level average speed and log ing level average speed and log In addition the Link 5100 main remotes largely independent the twoLighting unit displays both primary data boat can find a wide variety of different Lighting Seven levels of intensity Seven levels of intensity speed apparent wind depth as well uses The navigator for example selectable selectable as computed functions which are can log the days run on the mainLink Network Outputs derived from the primary data true unit while the helmsman can use the Speed trend log timer depth wind VMG average speeds etc cockpit remote log for buoy to buoy depth offset apparent wind speed The main unit also supplies navigation Or the helmsman can and angle true wind speed and power to the Link network to any enter a depth alarm setting in feet if angle VMG damping compass number of Link remote instruments he likes on the remote while the heading crosstrack error dis Each remote instrument con navigator can set a different setting tance to waypoint lighting sins its own computer which uses in fathoms or meters on the main BNC connector d e information on the network to unit ESmpatible with all Link products calculate and display additional The instruments cooperate br do not interfere with each other Installation To recess the 5000151 00 it is first necessary Main Unit Mounting The Link to attach the flush mounting 5000 and 5100 are designed tobe brackets to the instrument mounted in either of two ways Unscrew the four rear case a screws a few turns each It is not necessary to remove them just loosen them to separate the bezel a from the housing and insert the two molded flush mounting brackets When the brackets are correctly positioned tighten the 1 four screws on the rear panel to I securely clamp the brackets in I place Torque the screws lightly to just mate the bezel brackets and I housing 1 bulkhead Cut aorhole panel in the using desired the tem plate provided Be sure that there is sufficient depth behind the I 0 panel for the instrument plus the connectors and cable loops The a Recessed into a nav station or b Free standing surface mounted instrument should slide into the igstrument panel or hanging from an overhead rectangular hole and be fastened support at the four corners of the flush mounting bracket with the screws Figure 3 orovidedFigure 2 Figure 4 Convenient Location In any weather damage yet a good mounting arrangement the pri installation will add years to its life mary consideration is easy view by protecting it against the direct ing and convenient operation of impact of saltwater rain and the the keyboard The unit has an intense UV of the sun especially wide viewing angle dis The front panel is quite play but the installation will be waterproof but the rear panel and most satisfying if the keyboard connections are not and should and display are directly facing the be protected from rain spray and operator wet environments Water damage In the case of the non to the circuit boards can be display 5000 main unit the most severe and can result in a voided convenient location may be inside warranty see Warranty Statement a locker or other dry available The 5000151 00 generates space very little heat so no considera Weather Protection The unit is tion need be given to cooling or L312 very well protected against ventilation LY 1 0 L313 half and the plate Only turn the I Main Unit Wiring Remote Alarm The depth remote alarm terminals are avail screws on a few turns Slide this assembly into the slot in the bot All wiring connections to the Link able to drive an additional buzzer tom of the housing so the housing 5000 system are made at the main The output is I 2VDC and will is captured between the mounting unit rear panel Erisure that power to drive up to 50 milliamps This is plate and the hinge the unit is turned off until all connec sufficient to power Sonalert type The hinge may be mounted tions are made horns but larger buzzers may with the hinge point either on the Transducer Cables Connect require a relay for more current or front of the instrument or to the I the speed depth and wind trans different voltages rear depending on the mounting ducer cables The depth and Datamarines A1 57 alarm angle desired See Figure 5 speed cables are simple plug on panel would be a good choice if aII If a hanging overhead mount is best the instrument housing may be rotated to position the hinge mounting slots on the top of the connectors Be sure the speed transducer cable connects to the speed jack not to the Link net work jack The BNC plugs are remotely located alarm is desired Sat Nav Output This is a SPST relay contact closure which allows interfacing to nearly all current unit as shown in Figure 6 identical so a mistake can easily satellite navigation receivers In Remove the four screws on the be made It would be a good idea most cases a voltage available at rear panel Remove the rear panel to label the end of each cable to the sat nav receiver should be run and unplug the two cable connec avoid future confusion if the unit is to terminal 1 terminal 2 should be Figure 5 tors Slide the housing away from ever removed for service or sea returned to the input on the I the front bezel and electronic I sonal storage receiver The receiver should be Free Standing Hinge Mounting assembly rotate 180 and slide it The wind cable should beII To surface mount the main unit the optional hinge mounting back on Reconnect the two plugs taking care to observe cor 0 connected to the screw terminals being careful to observe the cor set to 200 pulses per mile This may be in nautical or statute miles See the SpeedlLog secI bracket may L339 be attached rect orientation Replace the rear rect color coding The wire shield tion beginning on page 34 If in to the instrument housing First panel and four screws Be careful should be connected to the doubt the sat nav manufacturer attach either half of the hinge to not to overstress any cables and SHLD terminal taking care to or Datamarine can help with spe the support plate with the three not to pinch any wires between prevent stray wire strands from cific interface questions screws provided Remember to the rear panel and housing shorting out against any other point Link Network Connection slip the nylon spacer over the Torque the screws lightly to just mate the housing and bezel Connection to the Link network is center screw between the hinge Compass and Loran TheI made with the BNC connectorI compass input is N1 Format cable supplied If possible check The model L500 Link compass this cable with an ohmmeter sensor is connected with the red 1 I wire to Power the black wire to compass and the white wire to before connecting to Link instru ments at either end Resistance between the connector center pin 11 I compass The same compass sensor can also be used with and the outer shell should be w infinity A low resistance indi 1 compatible sat nav receivers cates a short circuit probably at 1 andlor autopilots the connector which should be The loran input is compatible corrected with any approved loran which Power Connection To avoid has a CDX output drive If in doubt contact Datamarines Cus accidental short circuits and other tomer Service Department to miswiring problems the power I check compatibility with your par connection should not be made II ticular loran receiver until all other connections are The Loran input is connected made and checked I u with the red wire to loran and the black wire to loran I Again labeling these similar The 12 volt dc power for the instrument should be connected using the power cord provided connect RED to POS BLACK to I wires will prevent future confusion NEG The Link main unit is pro tected against polarity reversal Transducer Route the cable away from sources of electrical noise such as existing Datamarine Corinthian transducers NOTE Obtain the 12 volt dc Installation generator and ignition wires Do The 5000 is not designed to power and ground both positive not shorten the transducer cable operate on any transducers other and negative side as directly from Depth Transducer The key as this will detune the transducer than those supplied for it by the battery as possible Avoid to proper operation of the depth and impair the performance of the Datamarine Any attempt to tune or power circuits which share loads sounder is the correct installation depth sounder Coil up the excess match to another transducer is at with ignition alternators radio and maintenance of the transducer cable and store in a convenient the owners risk transmitters radar sets winches The general and detailed recom w low noise location If a longer The 5000 is designed only for solenoids starter motors or motor mendations that follow should guide cable is required refer to section operation on 12 volt battery systems driven accessories Excessive the placement and installation of the Longer Cable Should the unit fail to work electrical noise associated with transducer Keep the transducer face clean properly check power wiring and these devices may prevent the Datamarine recommends and do not allow buildup of lay voltage transducer connections and 5000 depth sounder from operat against inside of the hull installations ers of bottom paint Gently transducer condition Many reported and water boxes Reliable opera ing at maximum depth and cause random numbers to be displayed tion and full performance specifica tions cannot be assured unlessthe 1 I remove old paint before applying fresh antifouling paint Do not use cases of failure or malfunction are traced ultimately to water box instal Proper wiring practice paint remover or other solvents lations fouled transducers heavily requires a correct size fuse or cir cuit breaker in line with the instrument as close as possible to the source of power For your pro tection ensure that a proper cir transducer face is in direct contact with water under the hull General Guidelines CAUTION A bronze trans ducer must not be installed directly I II Never strike the transducer face a sharp blow as damage to the transducer andor depth sounder could result The speed depth and wind painted transducers and spliced transducer cables DO NOT ATTEMPT TO TUNE OR ADJUST YOUR DEPTH SOUNDER SEEK SERVICE OR ADVICE FROM YOUR cuit breaker or fuse is installed A 3 or 5 amp fuse or breaker is onto a steel or aluminum hull Spe are needed to avoid Q 6 Lransducers are fully compatible with DATAMARINE DEALER OR THE suggested The rear panel of the damage due to electrolysis of dis main unit contains a push to reset similar metals Please request tech circuit breaker which should pro nical bulletin 10 from Datamarine tect the instrument in the event of for details Provide for continuous contact of internal malfunction However protection of the boats wiring and the transducer face with the water switch panels can only be assured under all normal operating attitudes with a circuit breaker or fuse as of the boat close to the source of power as On sailboats the transducer possible should be oriented to within 10 Note that your instrument is degrees of vertical for best accu designed and warranted for oper racy and performance A location approximately 23 aft is ation on 12 volt battery systems only Improper voltage can typically suitable Avoid locations seriously damage the instrument immediately downstream of thru E and will void the warranty hull fittings struts etc Avoid turbu If additional cable is neces lent areas On fast planing hulls mount well aft and close to the a Figure 7 sary for the power connection 16 AWG wire or larger is suggested centerline to avoid the planing 1 DX111 I I I up to lo 14 AWG up to 25 wake Separate power connections Mount the transducer as deep as must be made to any loran or sat possible to avoid the effects of nav receiver interfaced to the shallow turbulence The trans2I L 5000 ducer should not be the lowest point in the event the vessel runs aground P q61 BEST LOCATION 3 Q9 CROSS SECTION OF HULL STRAKES ti AIR SLOT Sometimes when first launched required High quality conventional Flush Mount Transducerthe transducer face will not be fully paint will work well Installation DX111 112 130 wetted due to paint film oily surface Datamarine ships the flush For the installation of the flushor a microscopic film of air The mounting DX111 transducer with mounted transducers the will miss continuously until the 5000 It is an excellent trans should be chosen such that thethe boat has run a short distance ducer which is compatible with most deadrise angle is minimum see Fig AntiFouling Paint We installation requirements However ure 1O normally amidships at maxrecommend a single thin coat of other transducers are available and imum paint on the transducer might be preferred in someface to prevent fouling It should be situations If the deadrise angle is each time the boat bottom than 15 degrees the depthsounderis painted First gently sand off any DX112 Similar to DX111 will not operate to full depth when previous paint such that only one except bronze construction the yacht is heeled down on thefresh coat is on the transducer face opposite side In such cases two Paint buildup will reduce perfor DX130 Similar to DX112 transducers can be installed one on mance as will a fouled transducer except chamfered for flush each side with a gravity operated Special transducer paint is not mounting into countersunk hole switch Model A106 to select the Figure 10 leeward transducer utomatically Next tighten the nut firmly The To install the transducer care cable is then routed to the depth i fully choose the best location in the sounder to complete the installation hull Bore a hole 21 I 16 in diameter The DX130 transducer installa bed the transducer flange and tion is similar except that the hull area onto the hull using one must be countersunk to accomo of the high grade marine bedding date the transducer 90 included compounds It is recommended that angle Datamarine supplies a spe a block of 3 or 12 plywood be cia1 tool for this countersinking oper ross sectton of hull 8 drilled 21 I 16 in diameter and bedded between the hull and nut ation See Figure 9 In case of cored hulls balsa see Figure 9 This acts as a locking device and also provides a com foam etc it is important that the countersink transducer DX130 be pliant interface to accommodate variations in the hull inner surface properly backed up with a rigid rein forcing plate See Figure I ICut Fgure I I thru hull fittlng IFigure 8 1 plywood backing block i Figure 9 away the inner skin and the core The transducer should be Transom Mounting centerline as possible while avoid material to accomodate the reinforc aimed downward to within 10 DX200 Proper mounting of the ing the general engine area On a ing plate while preserving the outer degrees of vertical DX200 transducer is extremely twin engine trans hull skin Pierce the outer skin with a Once the location is selected important to the eventual perform ducer may be located between pilot hole for later boring location following the guidelines determine ance of the sounder Since the the engines Avoid locating the Epoxy bond the reinforcing plate to the local deadrise angle Saw the pulse from the transducer will not transducer behind air slots in the the outer skin and the surrounding fairing block in half lengthwise at this sound through air the transducer boat hull or in line with drains or core material Lay up fiberglass angle so that the transducer face is should be located where aeration suctiontype selfbailers clothlmat over and around the rein aimed directly downward Cut the is least likely to occur Keep the Mount the transducer as forcing plate After resin cure bore a block for minimum projection into the transducer as close to the boat shown in Figure 15 so that the flat 21 I 16 hole from outside the hull water for least drag centered on the pilot hole Counter sink bed and install a plywood Apply a good quality under 1 Figure 13 water bedding compound on the 1 backing block as described earlier fairing block leveling block and It is recommended that the transducer stem Install on hull plywood backing block be cut no DO NOT OVERTIGHTEN A larger than the reinforcing plate to torque of 20 ft Ibs is recommended avoid jackout stresses on the Recessed Mounting On reinforcement some boats a recessed mounting Faired Transducer Installation may be preferred for low drag and DX1 04 Stem type bronze minimum projection See Figure 13 transducer for installation with Remember do not install the trans molded fairing block or recessed into stem of boat Best for use ducer at an angle greater than 10 degrees 0 where deadrise angles exceed I 10 See Figure 12 section thru ull centerline side viewFiaure 12 eimxy 1 fairing filler 1transducer recessed f o r e l a f t view in counterbored cavity Figure 15 E CABLE TO DISPLAY 30rnax deadrise angle TRANSDUCER ASSEMB t F R O M VlEW FRONT ViEW on 1 AL t 2 D l PRESSURE ANGLE ANGLE 1 SIDE VIEW REAR VIEW face is flush with the boat hull on Now an electrical check of the Longer Cable Speed Transducer the inboard side of the transducer transducer may be in order If water face and has a positive trim angle has gotten into the crystal area of Long Cable Installation The Installation of a few degrees to provide a flow the transducer it will generally be 5000 has been specially tuned to operate with the transducer and The most important aspect of instal of clean unaeratedwater over detected by a resistance check lation is the proper choice of location p cable supplied with it In case the the face of the transducer This Connect either lead of an of the thruhull impeller transducer in may require some compromise ohmmeter to the center pin of the installation requires a cable longer than the standard 30 extension your boat Operation and accuracy since boat attitude will vary transducer connector Connect the of the instrument are largely deter according to boat speed other lead to the outer contact of the 1 cables can be used mined by the location of the impeller Upon trial and error the most connector Datamarine can supply the A1 13 10 cable extenders which with respect to hull flow characteris effective tilt angle of the trans The transducer normally tics The following is some detail ducer will be found causes an ohmmeter to read max have connectors allowing multiple concerning the considerations 1 imum resistance an open circuit I extenders to be strung involved Anything less than that suggests endtoendDepth Transducer water damage Again a check of the However the instrument will General Considerations CAUTION A bronze trans have to be modified to provide cabling and connector may locate the problem If it doesnt and the I the extra cable capacitance ducer must not be installed directly onto a steel or aluminum hull SpeVisually checking the transducer resistance remains consider the cial precautions are needed to avoidcable and connector may not be transducer defective and in need of 1 Figure 7 6 damage due to electrolysis of disenough to determine the trans quality One convincing Transducer Cabling The Link depthsounder uses tranducers 1I3 0 similar metals Please request tech nical bulletin 10 from of determining a transduc for detailsers quality is to hang a second supplied by Datamarine They have 1 A hull moving through water willtransducer over the edge and see if a standard 30 of cable which should create a boundary layer of waterthe depthsounders performance not be shortened Lengthing is immediately adjacent to the hullimproves If the performance covered in the next section which is not still water but is movingimproves consider the results of this Other Transducers Other along with the hull because of frictest to indicate that the solution to transducers in the 205 210 Khz tional drag For this reason it isyour problem is transducer related range may work with the Link depth inaccurate to put a tiny paddle wheelMarine growth excess bottom paint sounder Datamarine cannot be held impeller a short distance through theor water flow may be the reasons for responsible for performance or satis hull at any location and expect tothe apparent failure A visual inspec factory operation of your instrument measure the exact speed of the hulltion of the transducer face and the when other transducers are used through the water One must hull area may reveal the and we offer no guarantee of I Remove the rear panel 4 with the boundary layer of movingsource of the problem Also check success water screws disconnect the two con ing the cabling and connector for nectors and withdraw the front The boundary layei is definedany physical andor electrical prob bezel and electronic assembly as the thickness of water which is lems may be helpful C1 from the housing Locate capaci pulled along with the hull due to form tors C6 and C7 near the center of or frictional drag Datamarine I the top circuit board See Figure 16 research tells us that the boundary P Carefully clip out one or both layer effects are related to velocity according to the number of extra boat speed waterline length or dis cable extenders used tance aft of the bow and the surface Number of 10 Remove condition of the hull foul or fair and Extensions angle of the keel 1 40 total C7 only Of these factors distance aft of 2 50 total C7 only the bow is by far the most important 3 60 total C6 and C7 ie the further aft the thicker the 4 70 total C6 and C7 boundary layer In fact water flow far No more than 4 cable extensions aft is likely to be turbulent called should be used separated flow by experts Naturallyhull shape and steps or strakes are Naturally you should be able tocontributors to flow 0bsee the installed thruhull fitting RECOMMENDED LOCATION Ibut generally flow aft of midships is and prudence dictates that it should either side a Approximately 3 aftunreliable for speed measuring be regularly inspected along with all close lo centerline the other thruhull fittings installed in b Forward of keelpurposes c Retaining pin aligned On fast deepvee planing hulls your yachtthe forward vee sections push water It is a good idea to tie theaside and the resultant flow is not dummy plug onto the indicative of the forward prog with a short lanyard Whenever theress of the hull through the water transducer is removed for inspectionThus the recommended transducer or cleaning the dummy plug will belocation for heavy planing hulls isdif immediately at hand No need toferent than that for displacement search through lockers or drawershulls Mounting Surface conditions of the hull Select a location as far forwardwill modify boundary layer effects and as deep as you can which BEST shapeThis is difficult to measure exactly Keeps the transducer submerged we can predict that a mid during all normal boat attitudes andships mounted transducer may motions and heel angles measure as much as 5 low when Is freely accessible and visible Figure 7 7 Speed Transducer Recommendation Displacement Hullsthe hull is badly fouled or rough as from within the yacht See Figure 17compared to the original calibration or 18 QfJwith a smooth hull A centerline location if possible Boundary layer effects in the is best normal ranges of yacht speed are The standard speed transducer RECOMMENDED LOCATION directly proportional to speed This shipped with the 5000 is the SX115 means that once installed you can Other transducers are available as Impeller Transducer b Inboard of first strake well c Retaining pin aligned calibrate at one speed and thereafter should be forward of intakes shafts it should be accurate at all speeds of SX115 struts props interest Fiberglass reinforced nylon flange 7 Accessibility Accessibility is projects only 3 a major consideration in selecting a SX125 hull location for the transducer This Bronze version of SX115 is vitally important Be certain to SX135 select a location which allows free Flush version of SX125 for counter access to the transducer from within sunk hole installation the yacht From time to time you sx201 may want to remove the impeller for Transom mount transducer for small Q inspection or cleaning This is a sim fast powerboats ple and safe operation when the yacht is in the water if the fittings are easily reached and if space allows hand and arm movements Each time the impeller or plug is removed you will take on a quart or two of RECOMMENDED AREA AFT OF ENTERING BOW SECTIONS water Life is more pleasant if this Sufficiently aft to be in maximum beam section forward of engines water can drain directly to the bilges for pumping p i 18 Speed Transducer Recommendation Planing Hulls Installing the Transom Mount Installation of the ThruHull Now permanently install the Transducer If your unit is a tran Fitting To install the thruhull fit thruhull fitting using a small amount som mount speedometer it will be ting follow these steps Drill a of bedding compound under the shipped with an SX201 speed pilot hole in the center of the flange on the outside Be sure to align transducer Your knowledge of wake selected location This should be the fitting so that the holes for the and wash created by your boatI done from inside to ensure accessi retaining pin are pointed fore and aft 4 should be used to locate the besti bility Next using a hole saw make Tighten the nut firmly from the inside 1 mounting position on the transom a hole 21 in diameter using the of the yacht Do not overtighten Do Some general are pilot hole as center The body of the not use a wrench on the plastic 1 shown graphically here TWIN 110 DEEP VEE HULL thruhull fitting should fit snugly thruhull 1 Drill pilot holes for the three through that hole At this point we urge you to It is recommended that a block install either the plug or the impeller selftapping screws provided in the hardware kit Use a small amount of of 38 or M plywood be drilled 2lAs assembly into the thruhull fitting as 1 bedding compound on each screw diameter and mounted between the a precaution against launching the hull and hex nut This acts as a lock ing device on rigid hulls such as yacht with the hole open The retain ing pin should be installed to keep and attach the SX201 transducer using a flat and a split lock washer under the screw fiberglass It also provides a com the plug or transducer securely in I After installing the SX201 pliant interface to accommodate variations in hull inner surface see place Be sure the arrow on the impeller assembly is pointed forward i transducer tilt the unit downward approximately 2 figure 22 LOCATE SUCH THAT TRANSDUCER Figure 19 The Orings provided should be installed in the two grooves of both I Securely tighten the hex head IS OUTSIDE OF PROP WASH bolts which attach the impeller the impeller transducer and the plug The silicone grease provided assembly to the right angle brackets Figure 21 With the transducer installed in will help seal the Orings and ease I the transom mount bracket select a Fiaure 22 removal of the assembly Keep the location well above the waterline to plug handy feed the 10 cable through the tran REMOVABLE A120 TRANSDUCER Next the 30 long coaxial cable som Drill a 716u hole to clear the should be installed in the yacht to coaxial connector and secure the connect the transducer to the loose cable using the clamps pro ORING SEALS KEEPCLEAN8 LU instrument Securely position the vided It is recommended that the cable connector at the transducer hole around the cable be sealed end so that the connector will not be with a flexible bedding compound to RETAINING PIN lying in the bilge water even when prevent spray from entering your CABLE TO DISPLAY heeled boat Once the cable is connected ALIGN HOLES FOR between the transducer and the ETAINING PIN FORE 8 AFT main unit the speed transducer is ready to operate The Link 5000 main unit is not OF HULL designed to operate with any trans Figure 20 ducer except the one supplied for it THRUHULL FITTING by Datamarine Any attempt to mate SX201 or calibrate to any other type of transducer is at the owners risk Note For cored hulls balsa SX115 SX125 foam and the SX135 countersink thru hull fitting follow the hull rein forcement and mounting instructions for the OX130 depth transducer alte a LID ae DDlCLE 0 ISpeed Transducer Maintenance final positioning It is a good idea to I 4 Black To complete the transducer parts are susceptible use a thread locking screw sealant I 5 Blue connect the cable from the junctionto fouling by marine growth or such as Loctite on all masthead 6 Yellow box to the main unit as is any other under connections Its surprising how I 7 Shield NOTE Make sure all wireswater part of your boat We have much vibration occurs on the mast 8 Not Connected including the shield are a coat of antifouling paint to truck The masthead boom rotating in the junction box This will assureyour impeller assembly This first The Link 5000 main unit may cups and wind vane is designed to proper operation of your Link mastcoat should last the first season in be field adjusted to compensate for mount in the masthead mounting head unitmost waters masthead mounting angles up to bracket The boom should be slid This completes the wiring We urge you to flush the impeller 180 port or starboard The mount into the grommeted hole until it seats required to connect the and its cavity with fresh ing bracket should be mounted firmly over the rear alignment pin unit to the main unitwater under pressure whenever the horizontally shim as needed as see Figure 23 At this point theboat is hauled and renew the anti close to the top of the mast as pos boom retaining pin should be Figure 23fouling paint as necessary sible An L shaped adapter bracket inserted to its full extent Make sure You may order replacement is provided for mounting on the side the wind cups are on the bottom endparts for the impeller as follows of a mast if this is needed INSTAWTION of of the wind sensor housing when the SX120 complete impeller The remaining section of the I boom is mounted assembly P121 impeller and shaft only cable should be installed from the final location of the main unit and run I The masthead cable connector should now be plugged into the P122 retaining pin only P123 Oring seals to the estimated location of the wir 1 receptacle on the mounting bracket 4 included only ing junction box Cable length is not critical and may be added to or I After mating the connector set rotate the locking ring until it seats to secure A1 03 retaining pin and trimmed if necessary the connection The cable is Orings only some thought should be given designed to provide a drip loop but to the problem of the masthead 1 this loop must not interfere with any cables slapping inside an aluminum masthead hardware spinnaker halMounting the spar Some spars have an extruded yards blocks etc 27max overall track or cable raceway which preWind Sensor The masthead installation isMasthead Bracket vents the noise Sometimes small sailslide lugs can be found to travel 1 now complete and ready for operationand Wiring up an internal groove The cable can 1 Mount the junction box in a dry be run up the inside tied off to a convenient location and once the sailslide every few feet As a last mast is stepped run both cut endsPrior to stepping the mast lay out i resort the cable can be pulled into of the wire into it Generally there isthe cable and masthead mounting the spar while a helper goops the a good location on a bulkhead upbracket to determine the length of cable with silicone caulk When the I1Ithe cable needed Cable length high clear of any possible bilgeshould allow for running to a con cable is pulled into place the silicone water Protect the cable going to andvenient dry location for the junction will bond the cable to the spar with from the junction box from accidenbox once the mast is stepped Once just enough force to prevent slapping 7 tal damage Install the spade lugs yet will permit removal if necessary I provided and connect to the termlnalthe necessary cable length isdetermined it should be cut and feddown the mast from the masthead If needed on a particular instal lation Datamarine can provide a strip red to red white to white etc as shown on Figure 24 The bracket should be cable connector to use in place of Boats with masts stepped onmounted so the grommeted hole the junction box Wire color and pin deck can either run the cable connections are provided below A through the deck through a gland fitand the rear alignment pin line up JUNCTION BOX DETAIL 120 cable Model WC177 is also ting and use the junction box or canwith the forelaft axis of the boat the available use a waterproof connector availgrommeted hole being forward Amounting template is provided in the Pin Color able from Datamarine at the base of CABLE TO INSTRUMENT dback of this manual The bracket 1 White the mastmay be moved slightly within the 2 Redconfines of the adjustment slot for 3 Green I Masthead Repairs and To install a new wind cupReplacement Damaged wind assembly line up the set screw with I Compasscups or direction vanes may besimply replaced without the need of the flat portion of the shaft and slide the assembly on the shaft until the If your wind functions are not operat Installation ing properly the following itemsreturning the masthead assembly to shaft is flush with the bottom of the should be checked before returning Shipped with your wind cup hub see Figure 25 the wind instrument to the factory Datamarine L500 compass sen Both the wind cups and the Tighten the set screw securely Check the mast step junction box sor is the instruction manual withwind vane may be removed by Please note Individual wind cups or connector for correct wiring detailed installation instructions forloosening the small set screw in the are not replaceablethe whole three Check polarity of power connec this sensor Please contact ourside of each assembly and sliding cup assembly must be changed tion at the main unit LINK System Service Departmentthe cups or vane off of the shaft After changing the cups or the With the masthead unit connected for information on installing otherLoosen only the lower of the two set vane the masthead unit should be and the main unit power discon compass sensorsscrews on newer wind vane hubs reinstalled as directed in the section nected the following resistances To replace the wind vane the entitled Mounting the Wind Sensor may be checked with anfollowing steps should be followed Masthead Bracket and Wiring ohmmeter at the main unit rear Loosen set screw on vane hub Remove old vane and hub panel terminals or at the junction box Input Install new vane and hub on If there is an apparent short The LINK 5000 main unit accepts the shaft or open circuit the Link wind sys LORAN crosstrack error and Tighten set screw tem will not work One should try information in See section entitled Wind to isolate the portion of the system the NMEA 0180 simple and complex Calibration formats This format is available on where the problem is and correct tQ it before damage to the instrument occurs the Datamarine Navigator LC LORAN as well as many other high Fiaure 25 The masthead unit would quality Loran viewers Please refer to 26 appear as shown in Fiaure the owners manual for vour receiver to a DC meter for installation instructions Figure 26 far Masthead Unit Connector r 1 Shield Terminal Resistance I 0 Comments I 1 to2 Approximately half Due to 2 diodes b I 4 to I scale on I x scale in transmitter loosen s e t screw infinity if meter t o remove vane 6 leads are reversed 2 to 3 8C2 Transmitter rotor REPLACING l o o s e n s e t screw t o 5 5to6 3Q Transmitter stator remove windcups 4 to 5 311 Transmitter stator COMPONENTS 7 to any pin co infinity 4 7 shield push onuntil shaft is flush with bottom550 Remote The 550 is nearly non magnetic so you dont have to Figure 27Installation worry about local deviation of the steering compass More important is to not mount the 550 so close r to the compass that the compass is hard to use especially when standing 1 First remove the guard by unscrewing the two bolts at the deck sockets Pull the guard up and off the upper pedestal brackets Slide the mounting brackets over the guard base with the cor rect orientation for your type of guard If you want to run the Link network cable through the pedes tal guard tubing you should drill a clearance hole for the cable through the tubing and through 3 the deck at the center of the guard socket It is not necessary to drill a hole large enough for the IThe 550 remote instrument can be simple installation Also havingmounted in a variety of different the instrument at the wheel is theways Its waterproof housing elimi most visible and convenient locanates the need for additional instru tion for the helmsmanment pods or installation hardware First ensure that the pedestal In choosing a location consider guard is tall enough to and convenience Is the date the 550 without within easy arms reach with the compass The verticalCan the displays be seen by every location of the 550 should leave aone in the cockpit An aft wheel proper handhold in the top of thelocation will make it hard for crew guard If the pedestal guard is toomembers to use the display informa short longer pedestal guards cantion Will a bulkhead or bridge deck be obtained from the instrument be visible to the manufacturer with crew and guests in Datamarine can supply a pedestalthe cockpit guard extension kit Model L341 1 which attaches to the base of the Pedestal Guard Mount The 550 is perfect for pedestal mount ing Its designed to accommodate existing guard and raises up the top of the guard a sufficient I nearly all pedestal guards for a amount to accept the 550 Figure 28connector as the cable can be It is also possible on some Overhead Mount If an over kit L342 may be ordered Removecut for a connection point below steering systems to run the Link head mount is desired the rear the rear cover as just describedthe deck in a dry location Con cable through the pedestal itself panel of the 550 can be rotated but leave the buzzer in place Disnectors are provided in the instal An entry hole is often provided to 180 to slant the front surface connect the connector from thelation kit Although the Link cable pass the cable through or one down towards the operator see circuit board Install the oringis coax it is not necessary to use can be drilled Be certain that the figure 30 Carefully remove the provided in the kit into the bracketcoaxial connectors at this point cable does not interfere with the f eight screws from the rear panel groove and place the bracketThe simple connectors provided moving steering components or and open the instrumentThe oring up over the skirt on thewill be totally adequate and aremuch easier to make up than with any engine controls Securely fasten it out of the way to avoid D buzzer must be removed to allow the angled rear panel to fit in the rear panel Reconnect to the circuit board and place the housing overstandard coax connectors cable damage or jamming the reverse orientation A remote the rear panel bracket assembly At this point the cable should control mechanisms alarm can be driven by the small While holding the assembly togetherbe strung through the pedestal The BNC connector used on white connector next to the turn it over so that the rear panelguard Reinstall the pedestal the remote cable is fitted with a installed buzzer It will be neces faces up Replace the 8 screwsguard with the brackets installed weatherproof boot which should sary to drill the rear panel to pass and their sealing washers andAttach the 550 instrument with the make this connection point very the cable through for the remote evenly and lightly torque thefour screws to the brackets Sev reliable Silicone grease should be buzzer screws to just mate the housing eral holes are provided on the applied to the mating halves Replace the eight case bracket and rear panel Cut an rear panel to accommodate dif before assembly to keep water screws and evenly and lightly opening in the mounting surfaceferent guard widths Use the one out Dow Corning 4 is excellent torque Apply only enough torque using the template provided Apply which will fit your guard best for waterproofing exposed con to just mate the rear cover to the bedding around the holes and nectors like these housing secure the bracket to the mount Any exposed runs of cable should be well secured to prevent Q Flush Mounting If a recessed flush mount is desired the optional ing surface with the four screws provided accidental damage BulkheadMount The 550 can be mounted on a vertical bulkhead by bolting it directly onto the bulk head using 28 screws or by using the optional hinge brackets L338 If bolting directly onto the surface use the molded in threaded inserts to receive the screws and the template provided in the rear of the manual to locate r drilled holes You may order optional BNC right angle adapter Kit L345 to allow a hidden coax cable bedding compound to seal the holes The hinge mounts are very flexible and will provide a variety of mounting angles as shown in figure 29 alarm Figure 30 local conditions Bottom condi of measure next to the value of Operation Depthsounder tions sea state transducer instal the depth Successive presses of System Power Turn the Link General Information The lation boat speed and the vessels this button will change the 5000 System on with the toggle Datamarine Link 5000 depth electrical noise environment are selection switch on the main unit lower sounder is designed to meet the some of the factors which will Also if a function other than right The ON position applies demands of racing and cruising interact to limit maximum depth depth is being displayed pressing i power to the main unit and all sailboats and power yachts It will indication The user should antici this button will display depth in remotes on the Link network The reliably indicate water depths pate a variation in maximum whatever units were previously LAMP position adds night lighting between 25 and 400 feet 120 I depth performance and operating as location conditions change selected Additional pushes will to the main and remote instru meters 67 fathoms and inter change the display to the other ments The lamo intensitv can be faces with the Datamarine Link I The accuracy of the depth units of depth When the system is measurement is also affected by turned off and later turned back adjusted by pushingthe network supplying information to any number of depth or multi several factors external to the on the last unit of depth selected button until the desired intensity is function remote units which may depthsounder Variations in the will be remembered and automat obtained be connected to that network The velocity of sound transmission in ically selected On powerup the unit will significant features of your new water caused by salinity tempera NOTE If an alarm has been briefly display and test all digits depthsounder are ture and pressure plus penetration previously set at 12 feet and a and display symbols The display of soft bottom layers by trans user switches the units to fathoms Depth Up to 400 feet 120 should look like this mitted signal can cause errors of the alarm setting is now 12 meters or 67 fathoms in user selectable units up to 2 velocity and 1 foot fathoms NOT 2 FATHOMS Care Display Low power LCD mud penetration under worst should be taken when changing display case conditions units of measure to check theDEPTH HEADING Alarm 39 position alarm The sounder is calibrated for alarm settings a sound velocity of 4800 feetlseALARM A settable in ftfmmeters cond a US standard of Keel Offset FAULT is provided to allow depth read ings to be displayed and meas The accuracy of the depth These upldown controls areSPEED REL ANGLE ured from the waterline or the measurement circuitry of the used to adjust the alarm thresholdLOG VMG AVERAGE MILES DIRECTION lowest part of the keel depthsounder is within plusminus 05 over a temperature range of Pushing the lrbutton will first dis Network Interface This depthsounder provides Link depth 0 degrees C to 55 degrees C play the current alarm setting with information for remote instruments and a voltage input range of 11 to the ALARM symbol Successive located throughout the boat 16 volts dc This corresponds to pushes will then advance the Next for a few seconds the plusminus 05 feet at 100 feet alarm setting to greater values display will show the software Ease of Operation The depthsounder is totally automatic Operation he lV button will decrease the revision installed This revision number will h e l us answer anv questions that you may have allowing for hands o f f operation Performance The performance I m alarm settings When the button is released the last displayed value i about your system The remote of the Datamarine Link depth This button selects which will be stored as the alarm limit If I software revision may be different sounder relies upon a powerful unit of measure the depthsounder the actual depth drops below the than the main unit transmitter used in conjunction will operate with Selecting one of stored alarm depth tne alarm will Next the display will change with a proven transducer and a the three will cause the LCD dis sound to the function selected for display sensitive amplifier to enable oper I play to indicate the selected unit before the power was turned off ation at great depths Operation at At this point any other function great depths is controlled by may also be displayed many factors thus ultimate depth capability is a function of current If the depth alarm feature is convenience however any units bottom First measure the actual The display will read feet and will not desired push the muntil mute control will silence any Link depth of water accurately using a either indicate a number to indi alarm that may be sounding lead line overside close to the cate an offset above the trans Alarm OFF is displayed position abeam the transducer ducer as in reading depths from Note that the minimum oper When the alarm sounds it ating depth between the trans not at bow or stern the top of the water or a number may be temporarily muted by ducer and the bottom is 25 feet Next if depth below the sur with the minus symbol to indi momentarily pushing either 111 or The 1 foot alarm setting is useful face is the desired indication cate an offset below the trans only when the keel is at least 15 remove the black rubber plug ducer as in reading depths from This will disable the audible feet below the transducer and the from the front panel labeled the vessels keel alarm but when the boat returns keel offset control see Depth Depth Offset and adjust the A reading of 0 indicatesto water deeper than the alarm Offset has been adjusted to indi control clockwise with the small that depth readings are being cal setting the alarm function will be screwdriver provided until the culated from the transducer and cate the depth below the keel reactivated and the buzzer will 5000 indicates exactly the mea may not take into account keels The 5000 may occasionally sound again if the boat returns to detect a false shallow echo as a sured depth Replace the rubber or props which are below the shallow water a second time For plug location of the transducer result of fish or wake causing the example if you have the setpoint alarm to sound momentarily in Or instead if the desired The number in the Offset at 10 and the depth drops to 8 error indication is depth clearance display is the number in feet thatwhile entering a harbor the alarm below the keel you must also will be added to or subtracted Should the operating condiwill sound If adequate water depth know the exact draft of your ves from if the depth from the tions be such that the frequencyfor the boats draft is assured you of false alarms becomes a nui sel Subtract the draft from the transducercan mute the alarm by pushing measured depth and adjust the sance the alarm may be disabled Shallow Gain Control and Adjusteither button When you leavethe shallow harbor and the depthgoes over the 10 setpoint the by selecting the OFF position l See shallow i l in the following section a OFFSE3 indicate the actual depth under the keel See Figure 32 ment The shallow gain control is located behind the small black plug on the front panel Removingalarm will sound again anytime The depth alarm setting will Offset Display Holding the pluq will expose a smallthe depth gets less than 10 feet stay the same numerical value the button then pushing the screwdriver slot to be used toWhenever the depth is less than when the units are switched from adjust the control feet to fathoms or meters For mon will display the keelthe setpoint even if the buzzer is muted the ALARM symbol in example if the alarm is set to 10 offset amount on the LCD displaythe display will continue to flash while in the feet mode and thenindicating that caution is in order the display is converted to Incidentally this mute func fathoms the alarm setpoint willtion will also turn off the alarm at become 10 fathoms 60 feet Bethe 550 cockpit remote even if the aware of this as you could have acockpit alarm threshold is different false sense of security afterthan the main units This remote changing units Remember tocontrol function saves running up reset the alarm whenever the Depth Offsetand down the companionway units calibration is changed Reading Reading Of course the depth alarm Depth Offset This front panelmay also be turned off by read adjustment may be used if it is standard justing the setpoint to a depth less desired to have the 5000 indicatethan the current depth or to the depth below surface or depth 1 below transducerOFF position clearance below keel As shipped Remember that the alarm the 5000 was adjusted to at the main unit can be set the depth below the transducer Itto a different depth than the 550remotes setpoint This way thenavigator can use his affecting any settings the should not be altered unless the user is prepared to proceed with an accurate readjustment To adjust the offset the ves below keel uhelmsman may have entered For sel must be stationary over a flat This adjustment is used toadjust the gain for the best com Using Your Depth Sounder procedure is to determine if the fault is with the 5000 system or thepromise between wake rejection Link Depth Sounder reliable shallow depth indica If it is established that the Anchoring Your depth sounder In the event the depth sounder instrument is defective return it totion In general the gain should be should be used to determine the should fail to operate properly the Datamarine for service with a briefadjusted high enough to ensure t amount of line required to anchor following section provides some description of the sounding but not so high properly Determine the depth of the guidelines as an aid Repairs should not be attempted byas to produce shallow readings water correcting the displayed depth to the owner and service technician the owner as further damage maydue to wake Insufficient gain set if it indicates the depth below the in isolating and correcting the prob result and the warranty may betings may cause loss of echo transducer or keel Add the height lem The goal of the voided See Section WarrantyFAULT 01 displayed andorerratic operation The shallow gain from the water to the bow chock and is preset at the factory and then multiply by 5 as a minimum 5l OPERATIONAL PROBLEMSshould only need to be adjusted scope Dont forget to allow for theunder extreme conditions tide Pay out the necessary amount If the display shows FAULT of line Contour Navigation By Apparent Symptoms Probable Causes Possible Remedies 01 when in shallow water or misses the correct depth and dis using charts of your area and your plays twice the actual depth depth sounder it is possible to rec Blank display no indicators Unit defective or power not Look for backlighting at max increase the shallow gain in small ognize and navigate by underwater being supplied to 5000 brightness to test for power increments by turning the adjust features Contour lines generally run Check connections fuses ment clockwise parallel to the shoreline except for rear panel circuit breaker If the display has a tendency breaks where channels or passages to show erratic numbers especially between islands occur By following shallow numbers 3241 etc these contours you can locate these Random erratic depth indications Transducer in turbulent location Review location fairing and hull when in deeper water or when in passages in fog You can also follow at higher speeds Good at lower or cavitating at high speeds See Installation ol wakes of other boats or FAULT a winding channel in fog more easily speeds under 10 knots Transducer Section 07 indicating too much shallow than steering a compass course gain decrease the shallow gain For more information on contour in small increments by turning the navigation refer to the articles Nav Random erratic depth ndications Excessive electrical interference Review source of 12 volt power adjustment until igating in Fog in Motorboat October when engines or auxiliary equip introduced via power cord or transducer cable routing See the erratic numbers or the Fault 1978 How to Use Your Depth ment is operating Good with transducer cable Hullborne Power and Installation of Trans indicator ceases Sounder for Blind Navigation in quiet ship at all depths acoustical noise from engine ducer Sections Consider alter Rudder June 1972 nator noise suppressor engine Fishing A Contour Many vibration mounts types of bottom fish are known to prefer specific bottom depths for feeding Note the depth when you Fault 01 display at moderate to Power or gain reduced by low Review power to 5000 Examine do catch fish Then use your Link great depths voltage improper transducer transducer installation and con depth finder to follow that depth con transducer at excessive angle nections Consult charts for tour along a shoal or bank or poor bottom conditions unusual bottom conditions Fault 01 display all depths Acoustic signal not being Examine transducer connector received Unit or transducer Try another transducer over side may be faulty if available Failure to indicate reliably at Electrical noise interfering at Review source of 12 volt power moderate to great depths higher gain levels Transducer transducer cable routing See improperly located or damaged Power and lnstallation of Transducers Sections I units which may be connected toSpecial Note To that network The significant features been calibrated for individual trans Average speed is calculated as ducer Technicians of your new speedometer are Speed Display speeds up to 35 Proper performance of the Total sinceDistance Reset Avg Speed And Owners knots 40 mph knotmeter is dependent on good transducer location as well as cali Total Time since Reset Average Speed Displays averageAll Datarnarine digital depth sounders bration This will be discussed later The distance and time basis for speed since resetwere precisely tuned under labora in detail average speed is different than for Log Resettable LCD trip log up totory conditions All Datamarine sup Aside from these considerations displayed log and time For example 2000 miles mechanical total logplied transducers are tested to performance should not be affected log or time can be independently up to 10000 milesensure operation with our sounders by the boats environment For reset without affecting the average Elapsed Time Resettable for dead speedas factory tuned Retuning cannot be reckoning race starts etc example the Link knotmeter is done when installed ona boat Operational problems cannot VMG Speed made good calcula fected by usual electrical interference To reset average speed first push and hold H t h e n momen tions upwind or down Operation be corrected by retuning DO NOT ATTEMPT TO RETUNE AMPLIFIER USE TRANSDUCERS Trend Indicators Visual indication of increasing A or decreasing V tarily pushm must be u s h e d The two buttons and held in that speed Useful in sail and trim Push the button to select the SUPPLIED BY DATAMARINE FOR change evaluations Independent order W have purposely designed THE LINK 5000 CHECK POLARITY speed functions A single push dis it that way to prevent inadvertent trend indicators are provided for plays boat speeds A second push AND CONNECTIONS boat speed as well as VMG resets Service bulletins are provided to momentarily displays average speed The first few minutes after reset SAT NAV Output Rear panel ter and then reverts to current boat qualified Datarnarine dealers Many minals supplying 200 contact speed generally show a large amount of jit field problems are related to power closuresmile to sat nav systems ter in the average speed mode This sources noisy fuses transducer Impeller Transducer Model SXI 15 When in the SPEED mode the will display quickly clear to a very accurate cable connectors and improper Link knotmeter will display the accu standard SX125 SXI 35 SX201 rate speed of the boat through the splices these should be checked optional 41 hz knot standard cali Remember that the average first Prompt service is available at water with the following resolutions speed only shows for four seconds bration user adjustable 000 1999 in O1 increments our factory US and foreign distrib Network Interface Provides speed and then the display automatically utors Service at the factory is free 200 350 in 01 increments reverts to current boat speed This is and distance information for The effects of the damping under warranty and inexpensive out remote instruments located to prevent accidental confusion of warranty We highly recommend control will be very evident in the between the two functions When throughout the boat speed mode In rough weather min that a malfunctioning instrument be Adjustable Damping Four steps of displaying average speed the returned to the factory with a con imum damping will result in a very SPEED AVERAGE indicators will damping averaging to provide jumpy display as much as 48 cise statement of installation factors jitterfree display under all operat show and failure symptoms tenths Increasingthe damping rate The average speed calculation ing conditions will smooth the jitter to little or none Ease of Operation The Link can be used for navigation purposes The SPEED indicator will for example to advance a dead speedometer is totally automatic always be in the display whenever allowing for hands off operation reckoned fix Or it can be used to speed is selected In addition to the help trim the boat for maximum speed General Information The display showing the speed of the Periormance The Link knotmeter Racers often use it to keep track of Datamarine Link 5000 knotmeter is boat the speed annunciator provides an accurate display of boat average speed during each helms an advanced microcomputer knot will be displayed along with a trend speed from 03 knots to over 35 mans turn meterllog designed to meet the indicator This trend indicator A demand of racing and cruising sail knots Alternately a statute mile cali increasing speed V decreasing boats as well as all types of fine bration may be used for speed in speed will be shown each time the This is the speed made good to motoryachts It has a precise and miles per hour Though the instru instrument detects a change in boat windward or downwind display It accurate speed range of 35 knots ment is capable of readings of well speed will only operate correctly with both and a distance range of 10000 over the top figure accuracy is dim When in the speed mode a the wind masthead and the speed miles In addition the Link knotmeter inishing due to cavitation at the second push will show the boats transducer inputs to the main unit interfaces with the Datamarine Link impeller The knotmeters quartz average speed since last reset operating Resolution is as follows network supplying information to crystal time base and microprocessor 0000 to 1999 in O1 increments anv number of speed speed guarantee accuracies for all func i J 9 200 to 350 in 01 increments dependent or multifunction remote tions provided the instrument has I VMG is defined as the compo last damping level selected before Calibration The accuracy of the Calibration of the Link knotmeter nent of the boat speed which is turning off the main unit is remem Link speed log functions as previously is done with one adjustment for both directly into or with the wind a bered and automatically selected at noted is dependent on proper trans speed and distance Your instrument detailed illustration and explanation next power on ducer operation as well as calibration will be calibrated by comparing the is shown below The damping control applies to VMG as it does to speed r l The system is capable of measuring speed over 03 to 35 knot range with speed displayed by the Link knot meter with the speed calculated by In addition to the display showing This function gives the user an accuracy of 1OO The distance your charted distance and measured VMG the VMG annunciator will be access to the Link knotmeters measurement accuracy is also 1 time or by comparison to a loran displayed along with a trend indicator elapsed time which displays the Please note that speed and speed readout This trend indicator A increasing elapsed time since last reset or therefore distance are measurements To calibrate the Link knotmeter VMG V decreasing VMG will be since the instrument was turned on through the water and not necessarily in the boat the following guidelines shown each time the instrument Time will be displayed as follows over the ground Current can add are recommended detects a change in VMG Minutes and seconds 00OO to 1959 or subtract to give the effective value Select a course of known distance VMG is defined as the compo Hours and minutes 0020 to 1959 Thus any navigation reckoning with markers that can accurately nent of the boats speed that is When the Link knotmeter is in requires that knowledge of the cur be sighted A course of 05 to 20 directly upwind or downwind any other mode the elapsed timer rents over the course travelled be miles is sufficient in length to give continues to run until either a time used to compute final speed and accurate results The course reset is performed or power to the distance over the ground should be as free as possible u instrument is shut off At 1959 HRS This button selects four discrete The calibration control located from the effects of turbulence and damping levels These damping lev and MIN the time resets to 000 on the front panel is used to adjust current els reflect averaging methods which MIN and SEC the instruments microprocessor to Under relatively calm wind and To reset the timer first push the particular hull and location of the current conditions make timed average speed readings over increasingly longer intervals The higher the damping the less jitter you and hold the a button then transducer As discussed under Installation the imoeller in the trans twoway runs between markers A B steering a true course The will observe in the display especially push the button The display ducer does not measure the exact speed through the water because of runs should be at a steady speed which are close to the normal true in rough water The lower the damping the faster the display will change to TIME 00OO boundary layer effects Fortunately operating speed for the boat A response you will observe when m u the effect is proportional to speed so that a calibration at one speed is twoway run will help minimize the effects of wind and current and is boat speed changes Damping app Pressing this button will display good over the full range However essential if there is much of either lies to both speed and VMG The the trip log distance since the last calibration should be done at typical present Make sure the boat is up reset The display will read in hun cruising speeds for example a dis to speed when the runs start dredths of miles up to 1999 and in placement hull should be calibrated 11 Calculate the calibration tenths from 200 up to 1999 From at somewhat less than hull speed speed by averaging the speeds over 200 to 1999 miles the display will while a planing cruiser should be the ground for each run between the read in whole numbers only The calibrated at the most economical markers This method of calculation annunciators LOG and MILES speed on plane will cancel the effect of current dur will be displayed This instrument was calibrated ing the opposing runs while dividing Regardless of which function is at the factory for a typical installation total distance by total time will not being displayed on the main unit the of the impeller on a typical boat This method will require measuring Link 5000 knotmeter log continues Since the water flow the distance on your chart and to accumulate until it is reset When may vary from one installation to recording the time in seconds for power to the unit is turned off the log another it is a good idea to check each run on opposite courses reading is remembered and con the calibration and recalibrate if tinues to accumulate when the unit SOG1 DISTANCE MILES necessary when the instrument is is turned back on and the boat is installed on your boat RUN TIME 1 SECONDS moving At 2000 miles the loa will SOG2 DISTANCE MILES automtically reset to 000 I A YMG 4iO TO WINDWARD COS 60 BOAT SPEED COS elT I To reset Log first push and RUN TIME 2 SECONDS 3 L CALIBRATION SPEED push The 640 5 32 KNOTS hold then SOG1 SOG2 1800 display should show LOG 000 miles If the distance used is in nautical Knots MPH Conversion If you Guide The Note that the instrument calimiles then the calibration speed will calibrated the boat speed to display Link knotmeter is not designed to bration will be affected by progresbe in knots If statute miles are used in statute miles per hour then both operate with any transducers except sive fouling of the hull The boundarythen the calibration speed will be in boat speed and wind speed should the ones supplied for it by Datama layer will effectively increase andMPH use MPH Calculated functions such rine Any attempt to match or cali the instrument will indicate lesser NOTE The speed calibration as VMG and True Wind will be inac brate to any other type of transducer speeds than when originally caliunits either in knots or mph should curate if mixed units are used will not work The unit is designed brated The proper remedy is haulingbe kept the same as the units To convert to MPH an internal and warranted for operation on 12 and cleaning of the boats hullchosen for wind speed or VMG and jumper must be cut Remove the volt battery systems only If the impeller and cable seemTRUE WIND will be incorrectly cal four rear panel screws and open the Should your Link 5000 fail to proper but the instrument does notculated See section entitled Knots rear of the instrument Locate and operate at all check power wiring respond to the handturned impellerMPH Conversion carefully cut out the jumper Remov When power is applied in the proper signals check further by disconnect 21 Set the boat up on the same ing the jumper will automatically voltage range and polarity the ing the cable and shorting the transpoint of sail or engine RPM to return convert wind speed from knots to numeric display should appear ducer input jack Rapidly andto the same average speed as before MPH Replace the four case screws Should your knotmeter suddenly repeatedly shorting the inner con 3 1 Push for boat speed Zero ohm resistor one black band lose its calibration reading lower ductor to the outer body of the coax left rear corner of middle pc board than actual speed or display only ial connector should cause thein the display The LORAN crosstrack error 41 Adjust the front panel SPEED 00 knots when underway the fol speed display to read other than 00 and will also lowing should be checked If it does the main unit is probably CAL adjustment until the displayed be converted to statute miles By speed agrees with the calculated Transducer Connections A not at fault and the impeller and cutting the jumper and calibrating small amount of water especially cables should again be checked for average speed Use the small screw the knotmeter to MPH all displayed driver provided to fit the internal con saltwater will effectively short out faults The transducer assembly and network transmitted units will be the transducer signals Check itself contains internal solidstatetrol Clockwise rotation will increase based on statute miles This willthe displayed speed counterclock cables dry out connections components that cannot be field ensure that all distances Log XTE Impeller Should be removed repaired A replacement is required wise will reduce it Range will be consistent and that all 51 Replace the rubber plug and inspected for nonfouled If the instrument does not calculated functions VMG True undamaged freeturning condition respond to the shorting of the trans Alternatively the actual boat Wind Mag Wind Direction Reachspeed can be determined from a Keep the thruhull plug handy at ducer input internal problems would OO Tack and E3A will be accurate all times Spin the impeller by be indicated At this point your dealer loran speed readout However remember that the loran shows hand to verifv that oeration is or the factory service department restored A I O check that the should be utilized See not speed through the water Be sure to calibrate the unit at arrow on the transducer oints Considerations for information on a time and location when the wind Speed unctions forward In saltwater and weedfilled factory service Fuse Blowing Power problems and tidal effects are minimal Also note that the loran ground Datamarine is extremely proud of areas transducer impeller fouling resulting in repeated fuse blowing or speed is derived from its analysis of the Link knotmeter and the way it is can occasionally occur and low tripping of the rear panel circuit the past few minutes location fixes constructed As with any electronic speed readings will result Remove breaker require servicing of the As a result there is a considerable equipment however many outside and clean the impeller and cavity instrument itself if the power lines lag between actual boat speed or factors may influence proper opera and renew the antifouling paint if check out correctly direction changes and the lorans tion and there is always a chance of necessary Fault 01 This indicates missing averaged response If using the component failures within the If erratic readings are observed wind data needed for the VMG cal loran speed display be sure to set instrument As a first line of help to at certain boat speeds look for faulty culations This condition is caused the boat up on a particular heading the owner we have provided the fol connections that may be vibrating or by the Link wind input not being and speed and maintain it for 5 min lowing short guide to an improper transducer installation installed or operating properly utes or more Only after 5 minutes of assist you in isolating certain types as discussed in the foregoing sections steady heading and speed will the of problems loran groundspeed display be If at any time you need the accurate factorys assistance for any problem whatsoever please call us We are available to assist you in any Link matters Operation The two WlND push True wind angle is generally ful for tactical decisions Am I getWind Functions buttons are used to choose the type used for optimizing boat performance ting a wind shift should I tack orGeneral Information The Link of wind information to be displayed Upwind each boat in any particular When I round the windward mark5000 wind system contains a multi Their functions are as follows wind sea and sail configuration has will it be a port or starboard wind instrument designed to an optimum true wind angle to main set By electronically adjusting for This display is the apparmeet the demand of racing and tain Also sail selection is best made changes in the current boats head ent wind instrument information It by reference to true wind strengths ing real changes in the sailboats as well as all types indicates the wind that one feels and to true wind angles winds can be picked up much moreof power yachts It gives the user moving with the boat through the True wind direction is very use easilytrue wind both relative to the boats wind and will not indicate the actualheading and to magnetic north as spesr direction one observes withwell as the usual apparent condi the boat at resttions In addition the Link wind sys The display will show in the I Figure 34tem interfaces with the Datamarine center the apparent wind angle withLink network supplying information the O indicator as well as the apparto any number of wind wind ent wind speed above and to thedependent and multifunction remote riaht of the anale When in theunits which may be connected to apparent windmode the APPR RELthat network The significant features ANGLE indicator will always be onof your new wind instrument are Display Low power LCD display Will cause data to be dis of wind speed and direction information THREE DISPLA Y FORMATS played which is compensated for the vessels speed This display is equal to what one would observe if the ct Apparent wind as observed on boat was at rest Actual boat speed board affects both speed and direction of True wind angle relative to boat the apparent wind one would True wind direction relative to observe while under way This func magnetic north tion calculates this effect and Wind Speed Is userselectable for removes it either knots or mph The first push of this button dis Masthead Uses Datamarines plays the true wind angle ie the true WX175 masthead unit A proven wind speed and its angle relative to aircraft type synchro design the boats current heading weighing less than 16 oz A second push will cause true Compass Input Interfaces to any wind direction to be displayed The electronic compass with N1 true wind direction is the actual wind output relative to magnetic north This will Network Remotes This wind only display if an electronic compass instrument provides Link network has been connected to the main wind information for remote unit The LCD will clearly indicate instruments located throughout which wind function is being the boat The wind instrument also displayed provides wind information to the APPR REL ANGLE apparent wind knotmeter for VMG calculations speed and direction Operation The wind machine is TRUE REL ANGLE true wind speed totally automatic allowing for and angle off the bow hands off operation As one TRUE MAG DIRECTION true wind APPARENT TRUE BOAT sails the Link wind instrument will speed and direction with respect to WlND WlND SPEED give continuous wind direction magnetic north 14 KNOTS 37O 1 0 KNOTS 60 6 4 0 KNOTS and wind speed readings through 360 degrees 1 Damping This control is a push tape before the mast is steppedbutton that selects four discrete Hint A light liped to thedamping levels These damping lev upper part of the masking tapeels reflect averaging methods which can be gently pulled after calibraaverage speed and wind readings tion is complete This will peel offover increasingly longer intervals the tape and eliminate the need toThe higher the damping level the go up in a bosuns chairless jitter you will observe in the dis 3 The instrument can now beplay especially true in rough water aligned to the known vane position The lower the damping level 4 Select Using the smallthe faster display response you willobserve when wind or boat speed screwdriver provided rotate thechanges wind angle calibration control to The same damping level is change the displayed readingused for wind functions speed func Moving the control to the full Figure 35tions and boat heading clockwise position will lock on to the wind angle in the display at A good way to fine tune the speed is desired in statute miles per Pressing the button the first setting is to note the apparent hour instead of knots see the sectime will display the current level of that moment then will cause the displayed wind direction to rotate wind angle on each tack to wind tion KnotsMPH Selection If winddamping Successive presses will ward If it is different on either side speed is displayed in mph boatraise the level of damping until level to the right by one degree per second Full counter clockwise will hthe offset angle probably needs to speed should also be calibrated in4 is reached The next press returns be calibrated A likely correction mph so that computed functions areto damping level 1 The damping rotate the displayed wind direction to the left When displayed on a would be half of the difference accuratelevel is displayed as 3P through between the two apparent anglesdI9 The display will automatically 360 analog meter such as the 550 remote a clockwise control For example if the boat is in the return to the last selected function a groove at 40 on port tack andfew seconds after pressing the rotation establishes a 1O second 36O on starboard the settingdamp button When power to the clockwise pointer movement A counter clockwise adjustment should be rotated to the right wind main unit is turned off the selected damping level is stored in memory produces a clockwise by 2 400 360 and will be automatically selected pointer movement A short buzzer 2 Several diagnostic modes are incor when power is restored beep indicates when each degree is added or subtracted The lock Turn the adjusting screw to the porated into the 5000 to assist trou on feature eases calibration when right until 2 beeps are heard then bleshooting When either apparent or true wind is selected fault codesWind Calibration the boat is swinging at the moor ing or the wind is shifting center it Note Be sure to leave the may appear in the display if a probAngle Calibration The 5000 When desired alignment is adjustment in the center lem existsmust be aligned with the masthead reached move the control to the no beeping when the Fault 01 Indicates that no mastvane center of its rotation until the calibration is completed head wind information is being1 Remove the small rubber plug buzzer stops and the display is This will load the angle received by the main unit This could marked Wind Angle on the front stable The display will then offset into the non be caused by a number of things panel rapidly change to the current wind volatile memory and including missing or defective mast2 Set the boat up on a heading vane angle with the new offset prevent accidental head broken or incorrect masthead which produces a known appar applied changes wiring defective components in the ent wind angle The easiest is 10 main unit etc One should carefully put the boat head to wind on a check the wiring and the masthead mooring for a 0 apparent angle Wind Speed Calibration As as described in the masthead Alternatively the vane can be shipped the 5000 is accurately cali installation section to isolate the fixed at any particular angle A ibrated to display wind speed in knots cause of this fault This fault will be good way to do this is to tape the Except for the knotslmph displayed if apparent wind true wind vane fore and aft with masking selecton no further adjustment of or VMG is selected and the wind wind speed is necessary If wind information is missing Fault 05 This indicates missingdata needed for the calculated func Magnetic Compass 550 Remotetion MAG True Wind MAG Direc Display QQb Operationtion or for MAGHDG display Thiscondition is caused by missingcompass data or due to the fact acompass is faulty or not connectedto this instrument correctly NOTEOnly Nl format at 5 volt TTL This button will display the currentlevels is acceptable as a compass boat heading in degrees magneticinput The electronic compass input is dis Refer to the masthead installa played directly in addition to beingtion section to determine if the mast transmitted on the Link network forhead and associated wiring is faulty use by other instruments and forMost wind failures can be traced to computed cable and connector Remember that this display and any function which uses boat heading is only as good as its source of data Be sure the compass sensor is properly compensated Swung and is free from varying sources of local deviation eg tool boxes portable radios Follow the compass manufacturers instructions carefully The damping control also has influence over the heading displays If the heading numbers have too much jitter push the but ton to increase the damping level The compass functions will only work when a compatible electronic compass sensor is installed If no sensor is installed or if the data for In most ways the operation of the except that for convenience sake mat is incorrect the 5000 will display remote is similar to the main unit you can mute an alarm ringing at FAULT 05 Check for power and Keyboard arrangement and func any other Link instrument How correct operation of the compass tions are nearly identical ever be sure you know why the sensor Remember that the 550 remote alarm is sounding before disabling has its own computer and operates it The 550 remote will display nearly independently of the main depths to 999 feet or equivalent in I instrument meters or fathoms has a dedi Depth Functions The depth cated alarm mute key and will units and the depth alarm position accept alarm settings to 900 feet can be set at the remote to differ It operates just like the 5100 main ent values than those at the main unit otherwise unit Varying these settings at the Speed Functions Again the remote will have no effect on the speed functions are independent settings at the main instrument If of the corresponding ones at the a depth alarm rings at the remote nav station Time Log and Aver twill not ring at the main unit and age Speed can each be reset at vice versa Each is independent the remote without affecting the 1 Depth units the units most information on the main unit In recently selected FTIMIFM Warranty track the Link systems in the future for update information product each case the procedure is the will be remembered and depth Your Datamarine Link 5000 system improvement alerts and the above same as on the main first press will be displayed in that form components are covered by a 12 mentioned users group Als our and hold then push the when the unit is turned on month limited warranty and a sub warranty and service programs are again sequent 4year service program All an important part of our product function to be reset 2 Depth alarm settings will be repairs are done at the factory or at Were committed to standing behind Damping The control retained for future use one of our service depots We will our product fixing it and updating it affects the damping level of the 3 The function selected for each accomplish the repair of your We need your warranty registration wind as well as the speed func display will be remembered instrument within 48 hours card to help us serve you best in the tions For proper calculation of and will reappear automatically Basicallythis warranty will pro years ahead Please respond computed functions all quantities when power is reapplied This vide for the free repairs of faulty Link in the system are damped to the will prevent possible confusion instruments returned to us for one same extent As a result when in case power is lost tempo year from purchase date except for the remote damping is changed rarily due to an engine start for obvious causes like mechanical the main unit damping is changed example abuse overvoltage etc The service as well Damping level selection 4 The trip log and average speed program guarantees prompt repair of and display operate as on the basis will be retained for future instruments beyond warranty at a 5100 main unit use Remember to reset these maximum charge of only 10 of the Warranty at the start of a new trip if you Wind Displays The central dis do not wish to increment the list price of the unit Please consult the warranty statement for exact Considerations play of wind gives the apparent wind angle and speed When first existing log reading or average 3details PLEASE NOTE turned on the pointer will turn future speeds with past ones Upon registration with Data through a 360 5 Damping level marine each Link system owner will Warranty will be voided by swing then immediately advance Lighting The main units toggle receive a service ID card with a IMPROPER FUSES to the correct angle Wind angle switch controls system lighting special 800 telephone number for OVERVOLTAGE DAMAGE changes will be reported with a and will turn on the remote lighting Link system service In addition that PHYSICAL DAMAGE 112 resolution to mid intensity Adjust it up or card will contain data pertaining to SALTWATER IMMERSION Wind speed is displayed in warranty service and contacts at IMPROPER ATTEMPTS AT REPAIR down from there with the whole numbers in the digital dis Datamarine To receive this quick button reference card please return your For prompt factory service mail or play Calibration will be in knots unless the main unit has been Weather Cover An attractive owners registration cards as soon s h i to modified to display statute miles canvas cover is supplied with as possible after installation of your Link System Service per hour Should a wind fault occur your unit While the boat is not equipment DATAMARINE and the remote no longer receive being used the cover will protect To register your warranty 53 Portside Drive network wind information the the instrument from UV rays and please fill out and return the enclosed Pocasset MA USA 02559 pointer will point directly astern from rain and dirt It will pay to postagepaid warranty card This will Telephone 617 56371 51 and two dashes will appear in the replace the weather cover while help us serve you better in the future wind speed LCD the boat is idle We at Datamarine hope to establish Include return address and symp Wind fault Pointer South a fraternity of Link system users over toms and as much information as Winter Storage If the boat is in LCD the next decade This group will be possible about installation factors laid up for any period of time kept uptodate on new Link devel Memory Both the main unit especially in extremely cold cli opments Datamarine and other user REPAIRS OUT OF WARRANTY and remotes have independent mates it will be a good idea to experiencesTo do this it is vitally WlLL BE PERFORMED AT MODEST memorys which retain certain remove the Link instruments from important that we receive your COST FOR LABOR AND PARTS information when the instruments the boat Store them in a safe dry owners registration arb back at the THE INSTRUMENT WlLL BE are turned off These memorys location away from the condensa RETURNED TO ADDRESS SPECI factory We will not sell your name to require no current no batteries tion and temperature extremes FIED WITH A COD CHARGE FOR others or use it in any way you might and will store this information which they would experience on SERVICE AND FREIGHT object to Our main purpose is to indefinitely the boat i il 3 Limited 12 Month Warranty Four Year Factory Service Program Datamarine International Inc of 53 Portside Drive Pocasset In consideration of the purchase of this product Datamarine Massachusetts warrants to the owners of its product that such shall at any time within 4 years following the expiration of the product shall be operative and free of defects in warranty period repair and recalibrate any product other than one material and workmanship for 12 months after original purchase which has been altered damaged by negligent installation however in the event the attached warranty card endorsed by the mishandling or improper operation for a nominal charge not to selling dealer is not returned to Datamarine Inc at the above exceed 10 of the original retail price except that components address within 30 days of the time of purchase the full warranty subject to constant wear installation and environmental hazards period shall be for the 12 months after the date of manufacture This such as but not limited to flow sensors and transducers will be warranty does not cover damage resulting from negligent provided at current published prices All such charges plus freight installation improper operation unauthorized repair andlor or postage shall be assessed to the owner by COD return substitution of component parts other than those provided by shipment of the repaired product The product must be returned Datamarine Full performance specifications expressed or implied postage prepaid to the factory for repair and should be which can be adversely affected by installation and operating accompanied by a legible return address and brief statement of environment are not guaranteed under this warranty malfunction Services under this program will be available at any Any defective Datamarine product which is received by time of year and will be completed within 48 hours of receipt of Datamarine during the warranty period will be repaired or replaced product free of charge at the option of Datamarine1 PROCEDURE The product must be returned postage prepaid to the factory for repair and should be accompanied by a legible return address and brief statement of malfunction Services as described above will be available at any time of year and will be completed within 48 ihours of receipt of product Components permanently installed and contributing to the integrity of a hull need not be returned for repair Datamarine will make every attempt to effect repairs when only the instrument porlion of the product is returned LIMITS OF LIABILITY The foregoing shall constitute the sole and exclusive remedy of any owner of this product for breach of warranty including the implied warranties of and fitness IN NO WENT SHALL DATAMARINE INTERNATIONAL INC BE LIABLE FOR SPECIAL OR CONSEQUENTIAL DAMAGES OR THE OF RETAIL International Inc 53 Portside Drive i r e Pocasset MA USA 02559 S 6175637151 Telex 940445
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The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.