Lowrance electronic PRO X51 User's Manual
Contents
1. 4 Apply a weight such as a brick to hold the transducer in place while the epoxy cures Be careful not to bump the transducer while the epoxy is wet Leave the weight in place for a minimum of three hours Allow the epoxy to cure for 24 hours before moving the boat 5 After the epoxy has cured route the cable to the sonar unit and it s ready to use Power and Cable Connections The unit works from a 12 volt battery system For the best results attach the power cable directly to the battery You can attach the power cable to an accessory or power buss however you may have problems with electrical interference Therefore it s safer to go ahead and attach the power cable directly to the battery CAUTION When using the unit in a saltwater environment we strongly recommend that you shut off the power supply to the power cable when the unit is not in use When the unit is turned off but still connected to a power supply electrolysis can occur in the power cable plug This may result in corrosion of the plug body along with the electrical contacts in the cable and the unit s power socket In saltwater environments we recommend you connect the power cable to the auxiliary power switch included in most boat designs If that results in electrical interference or if such a switch is not available we recommend connecting direct to the battery and installing an inline switch This will let you shut off power to the power cable when the unit2. LOWRANCE _ X51 Pro Fish finding amp Depth Sounding Sonar Installation and Operation Instructions Copyright 2008 Navico Inc All rights reserved Lowrance is a registered trademark of Navico Inc Marine Tex is a trademark of Illinois Tool Works Inc Lowrance Electronics may find it necessary to change or end our policies regulations and special offers at any time We reserve the right to do so without notice All features and specifications subject to change without notice All screens in this manual are simulated On the cover X51 Pro shown For free owner s manuals and other information visit our web site www lowrance com Lowrance Electronics Inc 12000 E Skelly Dr Tulsa OK USA 74128 2486 Printed in USA Table of Contents Capabilities and Specifications X51 PYO c ce ececeessssseceeeeeees 2 Section 1 Installation sssssseccessssecssssceesssssceessssceeees 3 Installation Preparations cccccccccccceesssssceecceceesesssseceeeeseeeeeenens 3 Transducer Installation c cccccccccceceesssseceeeeeceesessseceeeeeeeeeeenens 3 Transom Transducer Assembly and Mounting ccc0008 7 Trolling Motor Bracket Installation ccccccccssssceeeesseeeeeenees 10 Transducer Orientation and Fish Arches ccccccccssceceeeeeees 12 Shoot Thru Hull Preparation ccccccccccecessssssseceeeceeeseeensaaees 12 Power and Cable Connections cccc
3. 12000 E SKELLY DRIVE TULSA OK 74128 800 324 1356 35 How to Obtain Service in the USA We back your investment in quality products with quick expert service and genuine Lowrance parts If you re in the United States and you have technical return or repair questions please contact the Factory Customer Service Department Before any product can be returned you must call customer service to determine if a return is necessary Many times customer service can resolve your problem over the phone without sending your product to the factory To call us use the following toll free number 800 324 1356 8 a m to 5 p m Central Standard Time M F Lowrance Electronics may find it necessary to change or end our shipping policies regulations and special offers at any time We reserve the right to do so without notice in Canada If you re in Canada and you have technical return or repair questions please contact the Factory Customer Service Department Before any product can be returned you must call customer service to determine if a return is necessary Many times customer service can resolve your problem over the phone without sending your product to the factory To call us use the following toll free number 800 661 3983 905 629 1614 not toll free 8 a m to 5 p m Central Standard Time M F outside Canada and the USA If you have technical return or repair questions contact the dealer in the country
4. If you do not get good fish arches on your display it could be because the transducer is not parallel with the ground when the boat is at rest in the water or at slow trolling speeds If the arch slopes up but not back down then the front of the transducer is too high and needs to be lowered If only the back half of the arch is printed then the nose of the transducer is angled too far down and needs to be raised NOTE Periodically wash the transducer s face with soap and water to remove any oil film Oil and dirt on the face will reduce the sensitivity or may even prevent operation Shoot Thru Hull Preparation Hulls With Floatation Materials The transducer installation inside a fiberglass hull must be in an area that does not have air bubbles in the resin or separated fiberglass layers The sonar signal must pass through solid fiberglass A successful transducer installation can be made on hulls with flotation materials such as plywood balsa wood or foam between layers of fiberglass if the material is removed from the chosen area WARNING Do not remove any material from your inner hull unless you know the hull s composition Careless grinding or cutting on your hull can result in damage that could sink your boat Contact your boat dealer or manufacturer to confirm your hull specifications Fill with resin Fill with resin Flotation material Inner hull Outer hull Epoxy the transducer to a solid porti
5. attached temp sensor is used 2 Section 1 Installation Thank you for buying a Lowrance sonar Your unit is a high quality sonar designed for both professional and novice fishermen All Lowrance sonars have an automatic mode that finds and displays the bottom fish underwater structure and more right out of the box All you have to do is press the on PWR key NOTICE The storage and operation temperature range for your unit is from 4 degrees to 167 degrees Fahrenheit 20 degrees to 75 degrees Celsius Extended storage or operation in temperatures higher or lower than specified will damage the liquid crystal display in your unit This type of damage is not covered by the warranty For more information contact the factory s Customer Service Department phone numbers are inside the manual s back cover Installation Preparations You can install the sonar system in some other order if you prefer but we recommend this installation sequence Caution You should read over this entire installation section before drilling any holes in your vessel 1 Determine the approximate location for the sonar unit so you can plan how and where to route the cables for the transducer and power This will help you make sure you have enough cable length for the desired configuration 2 Determine the approximate location for the transducer and its cable route 3 Determine the location of your battery or other power connection along
6. feature has three settings Off Low and High To change the ASP setting press MENU DOWN until Noise REJECT appears Use the up and down arrow keys to select the desired setting then press PWR to clear the menu Pro Tips Pro Your unit has a Pro Tips menu featuring fishing tips from Uae professional anglers on To access Pro Tips press the MENU key until the Pro Tips Off menu appears Use the arrow keys to highlight On The menu will close and a fishing tip will appear Use the arrow keys to scroll through other fishing tips Press PWR to clear Pro Tips from the screen Alarms The sonar unit has three different types of alarms fish shallow and deep Fish Alarm With Fish I D turned on the Fish Alarm will sound a tone when a fish symbol appears on the screen Fish I D is turned on by default To turn Fish I D on press MENU until the FisH ID menu appears Press UP ARROW to select ON and then press PWR Press MENU until the FisH ALARM menu appears Press UP ARROW to select On and then press PWR 28 To turn off the fish alarm without turning off fish symbols press MENU DOWN until FisH ALARM appears Press DOWN ARROW to select OrF then press PWR to clear the menu Repeat the above steps to turn the alarm back on but press UP ARROW to select On before clearing the menu Depth Alarms The depth alarms are triggered only by the bottom signal No other echoes will activate these alarms The depth alarms consist o
7. i 12 09 0 48 m 76 9 f Millimeter 70 3 3 03 Inch 2 77 Front view left and side view right showing dimensions of the X51 Pro when mounted on quick release bracket The swivel base not shown adds 0 4 10 mm to the height The swivel base width is 4 25 10 7 cm and the depth is 3 12 79 47 mm 17 Bracket Installation Mount the unit in any convenient location provided there is clearance when it s tilted for the best viewing angle You should also make sure there is enough room behind the unit to attach the power transducer cable See the following drawings which show the dimensions of a mounted X51 Pro Holes in the bracket s base allow wood screw or through bolt mounting You may need to place a piece of plywood on the back side of thin panels to reinforce the panel and secure the mounting hardware Drill a 5 8 15 9 mm hole in the dash for the power transducer cable The best location for this hole is immediately under the bracket location This way the bracket can be installed so that it covers the hole holds the cable in position and results in a neat installation Some customers however prefer to mount the bracket to the side of the cable hole it s a matter of personal preference After drilling the hole pass the connector up through the hole from under the dash If you wish you can fill in the hole around the cable with a good marine sealant adhesive compound Some marine dealers stock cable h
8. is not in use When you are not using the unit you should always shut off power to the power cable especially when the power cable is disconnected from the unit If the cable is not long enough splice 18 gauge wire onto it The power cable has two wires red and black Red is the positive lead black is negative or ground Make sure to attach the in line fuse holder to the red lead as close to the power source as possible For example if you have to extend the power cable to the battery or power buss attach one end of the fuse holder directly to the battery or power buss This will protect both the unit and the power cable in the event of a short It uses a 3 amp fuse 16 Optional power off switch To unit for saltwater installations Black wire oe 12 volt battery Red wire with 3 amp fuse Power and transducer connections for the X51 Pro sonar unit direct battery connection shown CAUTION Do not use this product without a 3 amp fuse wired into the power cable Failure to use a 3 amp fuse will void your warranty This unit has reverse polarity protection No damage will occur if the power wires are reversed However the unit will not work until the wires are attached correctly Mounting the Sonar Unit You can install the sonar unit on the top of a dash with the supplied bracket 107 5 82 7 gm 4 23 o B260 T i 156 6 26 ee
9. purchases this product as a consumer item for personal family or household use We warrant this product against defects or malfunctions in materials and workmanship and against failure to conform to this product s written specifications all for one 1 year from the date of original purchase by you WE MAKE NO OTHER EXPRESS WARRANTY OR REPRESENTATION OF ANY KIND WHATSOEVER CONCERNING THIS PRODUCT Your remedies under this warranty will be available so long as you can show in a reasonable manner that any defect or malfunction in materials or workmanship or any non conformity with the product s written specifications occurred within one year from the date of your original purchase which must be substantiated by a dated sales receipt or sales slip Any such defect malfunction or non conformity which occurs within one year from your original purchase date will either be repaired without charge or be replaced with a new product identical or reasonably equivalent to this product at our option within a reasonable time after our receipt of the product If such defect malfunction or non conformity remains after a reasonable number of attempts to repair by us you may elect to obtain without charge a replacement of the product or a refund for the product THIS REPAIR OR REPLACEMENT OR REFUND AS JUST DESCRIBED IS THE EXCLUSIVE REMEDY AVAILABLE TO YOU AGAINST US FOR ANY DEFECT MALFUNCTION OR NON CONFORMITY CONCERNING THE PRODUCT OR FOR ANY LOSS OR D
10. s mounting screws sealing them with the sealant adhesive compound Adjust the transducer so that it s parallel to the ground and tighten the nut until it touches the outer washer then add 1 4 turn Don t over tighten the lock nut If you do the transducer won t kick up if it strikes an object in the water Flat bottom hull Deep vee hull Align transducer centerline with hull bottom and attach to transom 6 Route the transducer cable through or over the transom to the sonar unit Make sure to leave some slack in the cable at the transducer If possible route the transducer cable away from other wiring on the boat Electrical noise from the engine s wiring bilge pumps VHF radio wires and cables and aerators can be picked up by the sonar Use caution when routing the transducer cable around these wires WARNING Clamp the transducer cable to the transom close to the transducer This can prevent the transducer from entering the boat if it is knocked off at high speed If you need to drill a hole in the transom to pass the connector through the required hole size is 5 8 Caution If you drill a hole in the transom for the cable make sure it is located above the waterline After installation be sure to seal the hole with the same marine grade above or below waterline sealant adhesive used for the mounting screws 7 Make a test run to determine the results If the bottom is lost at high speed or if noise appears on th
11. voltage If the voltage drops the unit s transmitter power also drops reducing its ability to find the bottom or targets 33 Bottom echo disappears at high speeds or erratic digital reading or weak bottom echo while boat is moving 1 The transducer may be in turbulent water It must be mounted in a smooth flow of water for the sonar to work at all boat speeds 2 Electrical noise from the boat s motor can interfere with the sonar This causes the sonar to automatically increase the noise rejection level This can cause the unit to eliminate weaker signals fish from the display Try using resistor spark plugs or routing the sonar unit s power and transducer cables away from other electrical wiring on the boat No fish arches when the Fish I D feature is off 1 Make certain the transducer is pointing straight down This is the most common problem if a partial arch is displayed 2 The sensitivity may not be high enough If the sensitivity is not high enough the unit shows the fish only when it is in the center of the cone 3 Use the Zoom feature It is much easier to display fish arches when zoomed in on a small range of water than a large one 4 The boat must be moving at a slow trolling speed to see fish arches If the boat is motionless fish are displayed as straight horizontal lines NOISE Noise usually appears on the sonar s display as random patterns of dots or lines In severe cases it can completely cover the screen wit
12. water Typically shoot thru hull installations give excellent high speed operation and good to excellent depth capability There is no possibility of transducer damage from floating objects as there is with a transom mounted transducer A transducer mounted inside the hull can t be knocked off when docking or loading on a trailer 6 However the shoot thru hull installation does have its drawbacks First some loss of sensitivity does occur even on the best hulls This varies from hull to hull even from different installations on the same hull This is caused by differences in hull lay up and construction Second the transducer angle cannot be adjusted for the best fish arches on your sonar display This is not an issue for flasher style sonars Lack of angle adjustment can be particularly troublesome on hulls that sit with the bow high when at rest or at slow trolling speeds Third a transducer CAN NOT shoot through wood and metal hulls Those hulls require either a transom mount or a thru hull installation Fourth if your Skimmer transducer has a built in temp sensor it will only show the temperature of the bilge not the water surface temp Follow the testing procedures listed in the shoot thru hull installation section at the end of this segment to determine if you can satisfactorily shoot through the hull Transom Transducer Assembly and Mounting The best way to install the transducer is to loosely assemble all of the
13. where you purchased your unit To locate a dealer near you visit our web site www lowrance com and look for the Dealer Locator 36 Accessory Ordering Information for all countries To order Lowrance accessories such as power cables or transducers please contact 1 Your local marine dealer or consumer electronics store Most quality dealers that handle marine electronic equipment or other consumer electronics should be able to assist you with these items To locate a Lowrance dealer near you visit our web site www lowrance com and look for the Dealer Locator Or you can consult your telephone directory for listings 2 U S customers LEI Extras Inc PO Box 129 Catoosa OK 74015 0129 Call 1 800 324 0045 or visit our web site www lei extras com 3 Canadian customers can write Lowrance Eagle Canada 919 Matheson Blvd E Mississauga Ontario L4W2R7 or fax 905 629 3118 Shipping Information If it becomes necessary to send a product for repair or replacement you must first receive a return authorization number from Customer Service Products shipped without a return authorization will not be accepted When shipping we recommend you do the following 1 Please do not ship the knobs or mounting bracket with your unit 2 If you are sending a check for repair please place your check in an envelope and tape it to the unit 3 For proper testing include a brief note with the product describing the problem Be sure to in
14. AMAGE RESULTING FROM ANY OTHER CAUSE WHATSOEVER WE WILL NOT UNDER ANY CIRCUMSTANCES BE LIABLE TO ANYONE FOR ANY SPECIAL CONSEQUENTIAL INCIDENTAL OR OTHER INDIRECT DAMAGE OF ANY KIND Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitations or exclusions may not apply to you This warranty does NOT apply in the following circumstances 1 when the product has been serviced or repaired by anyone other than us 2 when the product has been connected installed combined altered adjusted or handled in a manner other than according to the instructions furnished with the product 8 when any serial number has been effaced altered or removed or 4 when any defect problem loss or damage has resulted from any accident misuse negligence or carelessness or from any failure to provide reasonable and necessary maintenance in accordance with the instructions of the owner s manual for the product We reserve the right to make changes or improvements in our products from time to time without incurring the obligation to install such improvements or changes on equipment or items previously manufactured This warranty gives you specific legal rights and you may also have other rights which may vary from state to state REMINDER You must retain the sales slip or sales receipt proving the date of your original purchase in case warranty service is ever required LOWRANCE ELECTRONICS
15. after a few seconds If you don t want to wait press PWR to clear the menus from the screen Digital depth Surface clutter Water Temp d Bait fish Structure Bottom signal or cover Fish arches Depth range at bottom of Grayline depth scale ___ n SOl me vi i r Full Chart page showing digital depth above and temp below The factory default setting has the Fish I D fish symbols turned off 22 Chart Scroll In normal operation the sonar chart will scroll from right to left across the screen You can stop the chart from scrolling across the screen This is useful when you want to freeze the picture to study it more closely To stop the chart press MENU until the ScrRoLL SPEED menu appears Use the DOWN ARROW to select Min The menu remains visible and a stationary Stop message appears in the screen s top right corner To resume scrolling use the UP ARROW to select Max or any speed other than minimum then press PWR to clear the menu For most fishing conditions you should return the chart to maximum speed Read more about this in the later entry on Chart Scroll Speed NOTE You cannot clear the menu until you raise the chart speed again If you accidentally press PWR to clear the menu while the chart is stopped you must press MENU until the Scroll SPEED menu reappears then follow the instructions from the preceding paragraph Full Chart This shows all echoes scr
16. and a message box appears on the screen Press PWR to silence the alarm This turns the alarm sound off until the deep alarm is triggered again To turn the alarm off press MENU DOWN repeatedly until DEEP ALARM appears Press DOWN ARROW until the words OrF FEET appear then press PWR to clear the menu 29 Backlight The display is backlit for night use To turn the backlight on or off press MENU repeatedly until the Back LIGHT menu appears Press UP ARROW to turn the light on or the DOWN ARROW to turn it off Display Contrast To adjust the contrast press MENU DOWN until the DisPLay ConTRAST menu appears To decrease screen contrast press the DOWN ARROW key Press the UP ARROW key to increase screen contrast The bar graph in the Contrast menu box shows a graph of the contrast The screen will also show the effects of the change If you reach the maximum or minimum level a tone sounds alerting you to the limits Press the PWR key to clear the menu Battery Voltage The unit can display your battery voltage When activated Voltage will appear just below the temp display To turn this data on or off press MENU DOWN until the BATTERY VoLTAGE menu appears Use the arrow keys to select on or off then press the PWR key to clear the menu Depth Units of Measure This unit can show the depth in feet or meters To change the depth units of measure press MENU DOWN until the Units menu appears Use the arrow keys to select th
17. ats is between the ribs closest to the engine 3 The transducer should be installed with its face pointing straight down if possible For shoot thru applications Many popular fishing boat hulls have a flat keel pad that offers a good mounting surface On vee hulls try to place the transducer where the deadrise is 10 or less Deadrise less than 10 mA Strakes Pad Left vee pad hull right vee hull A pod style transducer is shown here but the principle is the same for Skimmers inside a hull 4 If the transducer is mounted on the transom make sure it doesn t interfere with the trailer or hauling of the boat Also don t mount it closer than approximately one foot from the engine s lower unit This will prevent cavitation bubble interference with propeller operation CAUTION Clamp the transducer cable to transom near the transducer This will help prevent the transducer from entering the boat if it is knocked off at high speed Good location Poor location Good location Poor angle Good location Good and poor transducer locations 5 If possible route the transducer cable away from other wiring on the boat Electrical noise from engine wiring bilge pumps and aerators can be displayed on the sonar s screen 5 How low should you go For most situations you should install your Skimmer transducer so that its centerline is level with the bottom of the boat hull This will usually give you the best co
18. ccccccccescessesseceeeeeesesensaaeees 16 Mounting the Sonar Unit Bracket and Portable 0 17 Portable Transducer Assembly cccccssssseccceceesessnseceeeeeees 20 Section 2 OPEration scccccscsssssssscssscccssssssssssccccsessssssssscees 21 MGT TET AA 22 Display ra aR A a Be 22 ChiartiScrollisccicactiteieajsdiawed etd bisa Side bead e ana ete AA ASAA AEAEE FRESS 23 Full Chart e e n ERO a eee e eee aia ea 23 Depth Range Zoom otaona anae aa Aaa 24 LOO he she A AEA E E EE A E E 24 Sena TETE n nia h a AN AEA E E AE A 25 Grayline PEE AN AIEI E E IAA EA AE EIEEE 26 TS eel lB 2S AE EE E T E E A E 27 Fishtrack inona an a A S BUS 27 Chart Scroll Speed ccccccccccsssssssercecccscessssseencesecescssvessesneaee 28 Noise Reject and ASP Advanced Signal Processing 28 PHO Dah JS EP E cies scels tesidsisaed cs LabssSas See de asl eee asa se 28 Alarm sy iii via Bean ARE BEN EEN AE aS 28 ISHVAT APNG EE E T I E E A E ETA E 28 Depth Alar MS csccasceciiesdeeeerscages caseedaea ited otuseebatareedegs ETE ai 29 Shallow Alarm ene aea ONA NE an ARREA E EAE SANES 29 Deep Alarmes ionnann aa e a WA ahi es 29 Backlight ccccccccccccccscsessssececececesceessnseseeeeeesesensseseeeeeessesensaaees 30 Display Contrast neern oaro comeahdoxvavder sen a EE ee a eeri 30 Battery Volfa pE snien sora a asaan a nahas ESAE EEEE A AEAEE SAER 30 Depth Units of Measure ccccccccccccccccssessssece
19. cececeesessaeeeeeeeeeeenes 30 Preset Uniti aap a aeaa a aa pAn Ea Eaa Eea 30 Syst m Dln aini heere E a e ney ay 30 Simulata aiara a AA NANT 31 Digital Data Size Depth and Temp cccccceesssseceeeeeeeenees 31 VAD OX OET EA TE EE E AE A T N AE AT 32 TrOUDlESHOOING seinastuni aani i eas 33 Capabilities and Sp Backlighting Input power eesse Current drain ecifications X51 Pro General 5 8 H x 4 3 W x 2 5 D 14 7 cm H x 10 8 cm W x 6 6 cm D Sealed waterproof suitable for saltwater use High contrast Film SuperTwist LCD Diagonal viewing area 4 0 10 2 cm 168 pixels vert x 132 pixels horiz resolution 22 176 total pixels 4 level gray scale Backlit screen and keypad for night use 10 to 15 volts DC 110 ma lights off 250 ma lights on Built in memory stores sonar settings when unit is turned off Sonar 200 kHz A Skimmer transducer comes packed with your sonar unit Its 20 cone angle offers a wide fish detection area of up to 60 with high sensitivity settings Operates at boat speeds up to 70 mph 61 kts 800 watts peak to peak 100 watts RMS 600 feet 180 meters Actual capability depends on transducer configuration and installation bottom composition and water conditions All sonar units typically read deeper in fresh water than in salt water Continuous digital readout Deep shallow fish Yes Yes Yes Yes when transducer with
20. clude your name return shipping address and a daytime telephone number An e mail address is optional but useful 4 Pack the unit in a suitable size box with packing material to prevent any damage during shipping 5 Write the Return Authorization RA number on the outside of the box underneath your return address 6 For your security you may want to insure the package through your shipping courier Lowrance does not assume responsibility for goods lost or damaged in transit Lowrance Pub 988 0151 59A Copyright 2008 All Rights Reserved Printed in USA 042908 Navico
21. ds to turn off the unit 2 MENU UP 3 MENU DOWN These keys appear in the manual text as MENU UP or MENU DOWN Most of the time the instructions require you to press either menu key so the text simply uses the word MENU Usually when we say MENU you can simply press the MENU UP key for consistency This sonar unit has many features that are accessed with the menu keys The MENU UP key moves up or forward through the menus the MENU DOWN key moves down or backward To see the first menu simply press either MENU key To see the other menus press a MENU key repeatedly to cycle through the menu list 4 UP amp DOWN ARROWS These keys appear in the manual text as DOWN ARROW or UP ARROW Use these keys to adjust virtually every feature and function on the sonar unit 21 Menus The menu keys access these features allowing you to customize the unit to your particular needs and water conditions All you have to do to leave one menu and enter another is press MENU repeatedly If you ever get lost in the menus simply press the PWR key This clears the menus from the screen Menus change depending on the mode the unit is in Messages may appear in menu boxes or new menus can appear depending on previous selections Display The lights flash for about 20 seconds when the unit is turned on The backlight menu first appears on the screen To turn the lights on press UP ARROW If you don t press a key the menu will disappear
22. e desired unit Feet of measure then press the PWR key to clear the menu Units Meters Preset Unit This command is used to reset all features options and settings to their original factory defaults This is useful when you have changed several settings and want to return the unit to basic automatic operation Turn the unit off Press and hold the DOWN ARROW key and the MENU DOWN key at the same time while you press the PWR key Release the keys as the unit powers up The unit will turn on with factory settings restored System Info To show the operating software system information press MENU DOWN until the UNiTINFo menu appears Press PWR to clear the screen 30 Simulator Staite This unit has a built in simulator that shows a simulated bottom signal with fish signals This lets you practice with the unit as if you were on the water all features and functions of the unit are usable To use the simulator press MENU DOWN repeatedly until the SIMULATOR menu appears Press UP ARROW to turn it on and press PWR to clear the menu Repeat the above steps to turn it off or you can simply turn the unit off and back on again Digital Data Size Depth and Temp The size of the digital numbers for the depth be changed to Temp medium or large The digital display for both Depth and Size Temperature can also be turned off or on Med To change either of these options press MENU Off DOWN until either the DEPTH Siz E o
23. e display try sliding the transducer bracket down This puts the transducer deeper into the water hopefully below the turbulence causing the noise Don t allow the transducer bracket to go below the bottom of the hull Trolling Motor Bracket Installation 1 Attach the optional TMB S bracket to the transducer as shown in the following figure using the hardware supplied with the transducer Note The internal tooth washer is supplied with the TMB S Bolt Internal tooth washer TMB S bracket l yer ss 4 S j Flat washer Attach motor mounting bracket to transducer 2 Slide the adjustable strap supplied with the TMB S through the slot in the transducer bracket and wrap it around the trolling motor Position the transducer to aim straight down when the motor is in the water Tighten the strap securely 3 Route the transducer cable alongside the trolling motor shaft Use plastic ties not included to attach the transducer cable to the trolling motor shaft Make sure there is enough slack in the cable for the motor to turn freely Route the cable to the sonar unit and the transducer is ready for use pei Partial fish arches r Transducer aimed Transducer aimed too far back too far forward Full fish arch ______ _ Proper transducer angle Transducer angles and their effects on fish arches 11 Transducer Orientation and Fish Arches
24. edy bottom returns a weaker signal which is shown with a narrow or no gray line A hard bottom returns a strong signal which causes a wide gray line To change the Grayline level press MENU until the GRAYLINE menu appears Wider Grayline 80 re hites pinin At left little Grayline indicates a soft bottom probably sand or mud At right the wider Grayline indicates a harder rocky bottom Press UP ARROW to increase the level or press DOWN ARROW to decrease it The percentage of Grayline in use shows in this menu Echoes scrolling onto the screen will also show the effects of the Grayline change If you reach the maximum or minimum level a tone sounds alerting you to the limits Press PWR to clear the menu 26 Fish I D The Fish I D feature displays fish symbols in place of the actual fish echoes There are three symbol sizes small medium and large Fish rN arches aa ee LD symbols 80 nA At left underwater scene in normal fish arch mode Right Fish I D menu with the feature turned on Fish I D is an easier way for a sonar novice to recognize a fishy signal return when he sees it To see what s under your boat in maximum detail we recommend you turn off Fish I D and begin learning to interpret fish arches You may see Fish I D symbols on the screen when actually there are no fish The reverse is also true Fish I D can actually miss fis
25. f a shallow and a deep alarm The shallow alarm sounds an alarm tone when the bottom goes shallower than the alarm s setting The deep alarm sounds a tone when the bottom goes deeper than its setting Both alarms adjust the same way although through different menus Shallow Alarm eee To set the shallow alarm depth press MENU DOWN LELLE repeatedly until SHALLOW ALARM appears Press UP ARROW to increase the shallow alarm s depth setting or press DOWN ARROW to decrease it The number in the shallow alarm s menu box shows the current shallow alarm setting When the number reaches the desired setting press PWR to clear the menu When the bottom depth goes shallower than the alarm s setting an alarm tone sounds and a message box appears on the screen Press PWR to silence the alarm This turns the alarm sound off until the shallow alarm is triggered again To turn the alarm off press MENU DOWN repeatedly until SHALLow ALARM appears Press DOWN ARROW until the words Orr FEET appear then press PWR to clear the menu Deep Alarm To set the deep alarm depth press MENU DOWN repeatedly until DEEP ALARM appears Press UP ARROW to increase the deep alarm s depth setting or press DOWN ARROW to decrease it The number in the deep alarm s menu box shows the current deep alarm setting When the number reaches the desired setting press PWR to clear the menu When the bottom depth goes deeper than the alarm s setting an alarm tone sounds
26. h black dots or cause the unit to operate erratically or not at all To eliminate or minimize the effects of electrical noise try to determine the cause With the boat at rest in the water turn all electrical equipment on the boat off Make sure the engine is also off Turn on your sonar then turn off Noise Reject ASP feature Advanced Signal Processing Sensitivity should be set at 90 95 percent There should be a steady bottom signal on the display Now turn on each piece of electrical equipment on the boat and view the effect on the sonar s display If you find noise interference from an electrical instrument trolling motor pump or radio try to isolate the problem You can usually reroute the sonar unit s power cable and transducer cable away from the wiring that is causing the interference If no noise displays on the sonar unit from electrical equipment start the engine and increase the RPM with the gearshift in neutral If noise appears on the display the problem could be one of three things spark plugs alternator or tachometer wiring Try using resistor spark plugs alternator filters or routing the sonar unit s power cable away from engine wiring When no noise appears on the sonar unit after all of the above tests then the noise source is probably cavitation 34 NAVICO FULL ONE YEAR WARRANTY We our or us refers to NAVICO INC the manufacturer of this product You or your refers to the first person who
27. h that are present To turn Fish I D on press MENU until the FisHID menu appears Press UP ARROW to select On then press PWR To turn it back off repeat the above steps but press DOWN ARROW to select OFF Fish ID z On 5N Fish I D symbols showing FishTrack PF an OME EEE Oy depth indicator T id Fish ID menu and symbol with FishTrack on The fish is 44 feet deep Fishtrack The FishTrack feature shows the depth of a fish symbol when it appears on the display 27 To turn it on press MENU until the Fish ID menu appears Press UP ARROW to select Track On then press PWR To turn it off repeat the above steps but press DOWN ARROW to select Orr If you want to turn off FishTrack depths but leave Fish I D on press DOWN ARROW to select On then press PWR Remember Fish I D must be on in order to use the FishTrack feature Chart Scroll Speed rym The rate that echoes scroll across the screen is called the SAALE chart scroll speed The default for this unit is max 100 percent Adjust scroll speed by pressing MENU until ScRoLL SPEED appears Press UP ARROW to increase it and press DOWN ARROW to decrease it Press PWR to clear the menu Noise Reject and ASP Advanced Signal Processing The ASP Advanced Signal Processing constantly evaluates the effects of boat speed water conditions and electrical interference and automatically gives you the best display possible under most conditions The ASP
28. in simulator mode There is a problem with the transducer or the transducer cable Check the cable for damage Unit freezes locks up or operates erratically 1 Electrical noise from the boat s motor trolling motor or an accessory may be interfering with the sonar unit Rerouting the power and transducer cables away from other electrical wiring on the boat may help Route the sonar unit s power cable directly to the battery instead of through a fuse block or ignition switch 2 Inspect the transducer cable for breaks cuts or pinched wires 3 Check both the transducer and power connectors Make certain both are securely plugged in to the unit Weak bottom echo digital readings erratic or no fish signals 1 Make certain the transducer is pointing straight down Clean the face of the transducer Oil dirt and fuel can cause a film to form on the transducer reducing its effectiveness If the transducer is mounted inside the hull be sure it is shooting through only one layer of fiberglass and that it is securely bonded to the hull 2 Electrical noise from the boat s motor can cause the sonar to automatically increase noise rejection level This can cause the unit to eliminate weaker signals fish from the display 3 The water may be deeper than the sonar s ability to find the bottom If the sonar can t find the bottom signal while it s in the automatic mode the digital sonar display will flash continuously 4 Check the battery
29. ing After sanding clean the hull and transducer with rubbing alcohol to remove any sanding debris o Spread epoxy a Sand this surface Orient the Skimmer with the nose facing the bow of the boat a To bow Epoxy transducer to hull WARNING N oo Use only the epoxy available from LEI It has been formulated to work with these installation procedures Other epoxy types may be too thin or may not cure to the right consistency for optimum transducer performance The epoxy consists of the epoxy itself and a hardener Remove the two compounds from the package and place them on the paper plate Thoroughly stir the two compounds together until the mixture has a uniform color and consistency Do not mix too fast or bubbles will form in the epoxy After mixing you have 20 minutes to complete the installation before the epoxy becomes unworkable Spread a thin layer of epoxy about 1 16 or 1 5 mm thick on the face of the transducer as shown in the previous figure Make sure there are no air pockets in the epoxy layer Then apply the remaining epoxy to the sanded area on the hull Press the transducer into the epoxy twisting and turning it to force any air bubbles out from under the transducer face Stop pressing when you bottom out on the hull When you re finished the face of 15 the transducer should be parallel with the hull with a minimum amount of epoxy between the hull and transducer
30. justable wrenches drill 29 0 136 drill bit flat head screwdriver Supplies high quality marine grade above or below waterline sealant adhesive compound Trolling motor installations Tools two adjustable wrenches flat head screwdriver Supplies plastic cable ties Shoot through hull installations Tools these will vary depending on your hull s composition Consult your boat dealer or manufacturer Other tools are a wooden craft stick or similar tool for stirring and applying epoxy and a paper plate or piece of cardboard to mix the epoxy on Supplies rubbing alcohol 100 grit sandpaper specially formulated epoxy adhesive available from LEI see ordering information inside the back cover of this manual A sandwich hull also requires polyester resin Selecting a Transducer Location 1 The location must be in the water at all times at all operating speeds 2 The transducer must be placed in a location that has a smooth flow of water at all times If the transducer is not placed in a smooth flow of water interference caused by bubbles and turbulence will show on the sonar s display in the form of random lines or dots whenever the boat is moving NOTE Some aluminum boats with strakes or ribs on the outside of the hull create large amounts of turbulence at high speed These boats typically have large outboard motors capable of propelling the boat at speeds faster than 35 mph Typically a good transom location on aluminum bo
31. locks into the new position You can also turn the unit on its special swivel base for a better horizontal viewing angle To dismount the unit for storage press the ratchets and lift the unit off the bracket Portable Sonar Installation Like many Lowrance products these sonar units are capable of portable operation The X51 Pro uses the optional PPP 12 portable power pack The PPP 12 package includes the power pack battery adapter and a portable transducer Batteries are not included Each power pack has a storage compartment for the portable transducer The PPP 12 can be used with eight AA alkaline batteries To use a portable power pack you simply install the batteries and then attach the sonar unit to the power pack s bracket 19 Installing the Batteries Release the latch on the front of the case Open the case and install eight AA batteries in the battery compartment After installing the batteries plug the sonar unit s power cable into the battery compartment socket Route the other end of the cable through the opening under the mounting bracket and close the case WARNING Never heat the batteries over an open flame or direct hot air onto them A fire or explosion could result Pa Bracket Transducer Suction cup Hull Portable transducer installed on boat transom Portable Transducer Assembly Recommended tools for installation include a slotted screw driver and two adjustable wrenche
32. mbination of smooth water flow and protection from bangs and bumps Transom Transducer centerline Hull bottom Align transducer centerline with hull bottom However there are times when you may need to adjust the transducer slightly higher or lower The slots in the mounting brackets allow you to loosen the screws and slide the transducer up or down If you frequently lose bottom signal lock while running at high speed the transducer may be coming out of the water as you cross waves or wakes Move the transducer a little lower to help prevent this If you cruise or fish around lots of structure and cover your transducer may be frequently kicking up from object strikes If you wish you may move the transducer a little higher for more protection There are two extremes you should avoid Never let the edge of the mounting bracket extend below the bottom of the hull Never let the bottom the face of the transducer rise above the bottom of the hull Shoot thru hull vs Transom Mounting In a shoot thru hull installation the transducer is bonded to the inside of the hull with epoxy The sonar ping signal actually passes through the hull and into the water This differs from a bolt thru hull installation often called simply thru hull In that case a hole is cut in the hull and a specially designed transducer is mounted through the hull with a threaded shaft and nut This puts the transducer in direct contact with the
33. nit is in 30 feet of water with range set at 80 feet and sensitivity set at 87 percent If you can t get an acceptable bottom signal try turning up the sensitivity by three or five keystrokes and then move the transducer around once more If you find a spot that works mark it and move on to step 4 If you have to turn up sensitivity by more than five keystrokes to get a good signal the transducer should be mounted on the outside of the hull This is especially true if you have to turn sensitivity all the way up to get a decent bottom signal 4 Most people can get good results by following steps 1 through 3 so this step is optional If you want to make an extra effort to be absolutely sure that your selected location will work under all conditions make a test run with the boat on plane and observe the bottom signal You ll need to figure some way to prop the transducer into position while you make your test run A brick or two might be sufficient to hold it in place 5 When you re satisfied with a location mark it and proceed with the installation Shoot thru hull Installation 1 Make sure the area is clean dry and free of oil or grease then sand both the inside surface of the hull and the face of the transducer with 14 100 grit sandpaper The sanded hull area should be about 1 1 2 times the diameter of the transducer The surface of the hull must be flat so the entire transducer face is in contact with the hull prior to bond
34. ole covers to conceal the opening No matter what type of installation you prefer be sure to leave enough slack in the cable to allow tilting or swiveling the unit Rear away from viewer Screw hole X51 Pro quick release mounting bracket Slots in the base allow routing the cable from beneath the mount Shown on swivel base These units use a quick release mounting bracket with a swivel base When you run the cable through the hole make sure you allow enough 18 slack for tilting and turning the unit and attaching the connector The snug fit of the push on waterproof connector requires some force to attach Align the bracket over the cable hole with the cable slots facing away from you and fit the cable through the slots Fasten the bracket to the dash using the two screw holes Attach the unit to the bracket by first connecting the power transducer cable Then hold the sonar unit vertically and slide it onto the bracket from above The back of the unit should be touching the front of the bracket as you lower it into position As you push down the unit will lock into place with a distinct click Depress ratchets to release Swivel base Adjust viewing angle use one hand to press and release the spring loaded ratchets while you move the unit with the other hand To adjust the vertical viewing angle pinch the ratchets with one hand then tilt the unit with your other hand Release the ratchets and the unit
35. olling across the full screen This is the default page The bottom signal scrolls across the screen from right to left The line at the top of the screen represents the surface The bottom depth as determined by the digital sonar shows in the upper left corner Digital depth _ era a Ft rA ence Surface signal B45 E gt Water Temp ii Fish symbols Bottom signal g Structure Depth range or cover at bottom of Grayline The Fish I D feature is turned on If the transducer with a built in temperature sensor is connected a digital display for water temperature will also be shown This temperature display can be turned on and off See the later entry on Temperature Size for off and on instructions 23 Depth Range Zoom When turned on the unit automatically adjusts the depth range according to water conditions When in auto range mode it always keeps the bottom displayed in the lower portion of the screen You can over ride the automatic depth range control and manually select a depth range To do this press MENU until the RANGE Zoom menu appears Press the DOWN ARROW to select ManuaL then press MENU UP to display the RANGE SizE menu Use the arrow keys to select a desired depth range When you re finished press PWR to clear the menu from the display This unit has the following depth ranges 10 20 40 80 160 320 and 640 feet Range Size menu with manual depth range set
36. on of the hull Epoxy to hull first For example some but not all manufacturers use a layer of fiberglass then a core of balsa wood finishing with an outer layer of fiberglass Removing the inner layer of fiberglass and the balsa wood core exposes the outer layer of fiberglass The transducer can then be epoxied directly to the outer layer of fiberglass After the epoxy cures for 24 12 hours fill the remaining space with polyester resin When the job is finished the hull is watertight and structurally sound Remember the sonar signal must pass through solid fiberglass Any air bubbles in the fiberglass or the epoxy will reduce or eliminate the sonar signals Transducer location Transducer location high speed trolling speed Shoot thru hull transducer locations for high speed or trolling speed operation Testing Determines Best Location Ideally the shoot thru transducer should be installed as close to the transom as possible close to the centerline This will give you the best performance during high speed maneuvers To choose the proper location for shoot thru hull mounting follow these testing procedures 1 Anchor the boat in about 30 feet of water Add a little water to the sump of the boat Plug the transducer into the sonar unit turn it on then hold the transducer over the side of the boat in the water Adjust the sensiti
37. parts first place the transducer s bracket against the transom and see if you can move the transducer so that it s parallel with the ground 1 Assembling the bracket Press the two small plastic ratchets into the sides of the metal bracket as shown in the following illustration Notice there are letters molded into each ratchet Place each ratchet into the bracket with the letter A aligned with the dot stamped into the metal bracket This position sets the transducer s coarse angle adjustment for a 14 transom Most outboard and stern drive transoms have a 14 angle Dot Align plastic ratchets in bracket 2 Aligning the transducer on the transom Slide the transducer between the two ratchets Temporarily slide the bolt though the transducer assembly and hold it against the transom Looking at the transducer from the side check to see if it will adjust so that its face is parallel to the ground If it does then the A position is correct for your hull If the transducer s face isn t parallel with the ground remove the transducer and ratchets from the bracket Place the ratchets into the holes in the bracket with the letter B aligned with the dot stamped in the bracket Reassemble the transducer and bracket and place them against the transom Again check to see if you can move the transducer so it s parallel with the ground If you can then go to step 3 If it doesn t repeat step 2 but use a different alignment letter
38. r Temp SIZE menu appears then use the ARROW keys to select the desired option Press the PWR key to clear the menus 31 Index A Accessories 18 Alarms 28 Fish Alarm 28 29 Antenna 35 ASP Advanced Signal Processing 13 28 B Backlights Lighting 2 30 Batteries 3 16 17 19 20 30 33 34 35 C Contrast 2 30 D Depth Alarms 29 Depth Range 3 13 14 24 25 34 F Fish Alarm 28 29 Fish Depths 27 FishTrack 27 Frequency 2 32 G Grayline 26 I Installation 3 14 18 19 20 P Power 2 3 16 17 18 19 20 21 30 33 34 35 R Range 3 13 14 24 25 34 Repeat Play List 29 31 Route 3 5 9 10 11 16 20 33 35 S Sensitivity 13 25 26 35 Simulator 31 33 Specifications 2 T Temperature Sensors 2 7 Transducer 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 23 33 34 35 Z Zooming 2 24 25 34 Troubleshooting Unit won t turn on 1 Check the power cable s connection at the unit Also check the wiring 2 Make certain the power cable is wired properly The red wire connects to the positive battery terminal black to negative or ground 3 Check the fuse 4 Measure the battery voltage at the unit s power connector It should be at least 11 volts If it isn t the wiring to the unit is defective the battery terminals or wiring on the terminals are corroded or the battery needs charging Unit turns on only
39. s Assemble the transducer and bracket as shown in the following figure Attach the transducer to the bracket with the supplied hardware Make sure there is one washer on each side of the transducer inside the bracket Slide the other washer over the end of the bolt and thread the nut onto it Screw the suction cup onto the bracket using the supplied screw and flat washer Tie the nylon cord through the hole in the top of the bracket When using this transducer tie the other end of the nylon cord to the boat This will help prevent the loss of the transducer if it comes off the boat Clean the chosen area of the hull before attaching the suction cup Locate the transducer on the hull as shown in the following figure Don t allow the bracket to extend below the hull because water pressure against it can cause the suction cup to come off at speed Moisten the cup then press it onto the hull as firmly as possible Tie the nylon cord to the boat and route the transducer cable to the sonar unit Your portable sonar is now ready for use 20 Section 2 Operation Keyboard Numbers in the following photo correspond to the following key explanations y E LOWRANCE X51 Pro 1 PWR CLEAR This key appears in the manual text simply as PWR Press this key to turn the unit on and off It also clears menu selections and the menus from the screen To clear a menu from the screen press PWR one time NOTE Hold the PWR key down for five secon
40. to 40 feet This in effect zooms or enlarges the display to show the water column from 0 to 40 feet deep In this figure the boat is in 57 5 feet of water but only the top 40 feet of the water column is shown on the screen Zoom The zoom feature enlarges all images on the screen by doubling the size of the echoes a 2X zoom To zoom the display press the roti MENU key until the Zoom menu appears Press the UP ARROW key to select On then press PWR to clear the menu on To turn the zoom feature off press the MENU key until the off Zoom menu appears Press the DOWN ARROW key to select Orr then press PWR to clear the menu The top of the depth range scale returns to zero NOTE Using the Zoom command while in auto depth Range Zoom mode will always enlarge the echoes near the bottom because auto Range always keeps the bottom displayed in the lower portion of the screen 24 When you Zoom while the unit is in manual depth Range Zoom mode you can select one of 13 pre set Zoom Sizes This lets you enlarge some other particular segment of the water column Enlarged fish arches Zoom Size menu with the 5 15 foot zoom selected The boat is in 28 feet of water but the screen has zoomed in on the water column from 5 to 15 feet below the surface Sensitivity Sensitivity controls the unit s ability to pick up echoes If you want to see more detail try increasing the sensitivity a little at a time There are situations
41. until you can place the transducer on the transom correctly Ratchets Insert bolt and check transducer position on transom Metal washers Metal washer Assemble transducer and bracket 3 Assembling the transducer Once you determine the correct position for the ratchets assemble the transducer as shown in the following figure Don t tighten the lock nut at this time 4 Drilling mounting holes Hold the transducer and bracket assembly against the transom The transducer should be roughly parallel to the ground The transducer s centerline should be in line with the bottom of the hull Don t let the bracket extend below the hull 8 Mark the center of each slot for the mounting screw pilot holes You will drill one hole in the center of each slot Drill the holes using the 29 bit for the 10 screws Transom Transom Position transducer mount on transom and mark mounting holes Side view shown at left and seen from above at right 5 Attaching transducer to transom Remove the transducer from the bracket and re assemble it with the cable passing through the bracket over the bolt as shown in the following figures Route cable over bolt and through bracket Side view shown at left and seen from above at right Attach the transducer to the transom Slide the transducer up or down until it s aligned properly with the bottom of the hull as shown in the preceding and following figures Tighten the bracket
42. vity and range controls until a second bottom echo is seen on the display You ll need to turn off Auto Sensitivity Auto Depth Range and ASP Try a range setting that is two to three times the water depth The harder more rocky the bottom the easier it will be to get a second bottom signal Don t touch the controls once they ve been set Next take the transducer out of the water and place it in the water in the sump of the boat face down The transducer face is shown in the figure on the following page Notice how the signal strength decreases The second bottom signal will probably disappear and the bottom signal intensity will likely decrease Now move the transducer around to find the best location with the strongest possible bottom signal If you find a spot with an acceptable bottom signal mark the location and move on to step 4 13 If you can t get an acceptable bottom signal try turning up the sensitivity by three or five keystrokes and then move the transducer around once more If you find a spot that works mark it and move on to step 4 If you have to turn up sensitivity by more than five keystrokes to get a good signal the transducer should be mounted on the outside of the hull This is especially true if you have to turn sensitivity all the way up to get a decent bottom signal 30 i ENDS STR EE True bottom Second bottom Manual range setting 200kHz A Example of a second bottom signal U
43. when too much clutter Auto appears on the screen Decreasing the sensitivity can reduce Manual the clutter and show the strongest fish echoes if fish are present As you change the sensitivity setting you can see the difference on the chart as it scrolls Fig 1 Fig 2 a ied Gaal ape Prg ers D At ai i 4 These figures show results of different sensitivity levei on the same location Fig 1 Sensitivity at 98 percent determined by Auto Sensitivity Typical of full auto mode Fig 2 Sensitivity set at 71 percent Fig 3 Sensitivity set at 47 percent Fig 4 Sensitivity set at 100 percent 25 To adjust Sensitivity press MENU until the Sensiivity ADJUSTMENT menu appears Press UP ARROW to increase the sensitivity DOWN ARROW to decrease it When it s set at the desired level 97 press PWR to clear the menu Sens NOTE If you want to change the sensitivity in Manual Mode first turn off Auto Sensitivity press MENU RAAE until the Sensitivity AUTOMATIC MANUAL menu appears Press DOWN ARROW to select MANUAL then press PWR to ENIH clear the menu To adjust the sensitivity follow the same Manual steps used for adjusting sensitivity in auto mode above Grayline Grayline lets you distinguish between strong and weak echoes It paints gray on targets that are stronger than a preset value This allows you to tell the difference between a hard and soft bottom For example a soft muddy or we
44. with the power cable route 4 Install the transducer and route the transducer cable to the sonar unit 5 Install the power cable and route it to the sonar unit 6 Mount the sonar unit Transducer Installation These instructions will help you install your Skimmer transducer on a transom on a trolling motor or inside a hull Read these instructions carefully before attempting the installation Determine which of the 3 installation methods is right for your boat Use extreme care if mounting the transducer inside the hull because once it is epoxied into position the transducer usually cannot be removed Remember the transducer installation is the most critical part of a sonar installation Your Skimmer transducer typically comes packaged with a one piece stainless steel bracket for mounting it to the transom of your boat The optional trolling motor mount uses a one piece plastic bracket with an adjustable strap These are kick up mounting brackets They help prevent damage if the transducer strikes an object while the boat is moving If the transducer does kick up the bracket can easily be pushed back into place without tools Recommended Tools and supplies If you prefer the option of routing the cable through the transom you will need a 5 8 drill bit The following installation types also call for these recommended tools and required supplies supplies are not included Transom installation Tools include two ad
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