Lowrance X51 Installation And Operation Instructions Manual

Text of Lowrance X51 User Guide:

• Lowrance X51, 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 in

• Lowrance X51, 33 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 in simulator mode: There is a problem with the transducer or the transducer cable. Check the cable for d

• 2 Capabilities and Specifications: X51 Pro General Case size:........................... 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. Display: ............................High-contrast Film SuperTwist LCD. Diagonal viewing area: 4.0" (10.2 cm). Resolution:.....................

• 6 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 combination of smooth water flow and protection from bangs and bumps. Align transducer centerline with hull bottom. However, there are times when you may need to adjust the

• Lowrance X51, 31 Simulator 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 nu

• Lowrance X51, 30 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

• Lowrance X51, 29 To turn off the fish alarm without turning off fish symbols, press MENU DOWN until FISH ALARM appears. Press DOWN ARROW to select OFF, 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 of a shallow and a deep alarm. The shallow alarm sounds an alarm tone when the bottom goes shallower than the alarm's setting. The

• Lowrance X51, 17 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. Front view (left) and side view (right) showing dimensions of the X51 Pro when mounted o

• 27 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. 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&ap

• Lowrance X51, Visit our web site: Lowrance Pub. 988-0151-59A © Copyright 2008 All Rights Reserved Printed in USA 042908 Navico

• Lowrance X51, 16 the transducer should be parallel with the hull, with a minimum amount of epoxy between the hull and transducer. 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 accesso

• Lowrance X51, 18 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&q

• Lowrance X51, 10 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 th

• Lowrance X51, 4 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 pr

• Lowrance X51, 11 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

• Lowrance X51, 24 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

• Lowrance X51, 26 To adjust Sensitivity, press MENU until the SENSITIVITY ADJUSTMENT menu appears. Press UP ARROW to increase the sensitivity, DOWN ARROW to decrease it. When it's set at the desired level, press PWR to clear the menu. NOTE: If you want to change the sensitivity in Manual Mode, first turn off Auto Sensitivity: press MENU until the SENSITIVITY AUTOMATIC/MANUAL menu appears. Press DOWN ARROW to select MANUAL, then press PWR to clear the menu. To adjust the sensitivity, follow the same steps used for adjusting sensitivity in auto mode above. Grayline ® Grayli

• 9 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). 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-assembl

• Lowrance X51, 19 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 touch

• Lowrance X51, 36 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 t

• Lowrance X51, 13 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. 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 y

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