Lms 522 manual

Split Zoom Sonar Chart A split chart shows the underwater world from the surface to the bot- tom on the right side of the screen. The left side shows an enlarged ver- sion of the right side. The Sensitivity Control Bar appears. When it's set at the desired level, press.

When you reach the maximum or minimum limit, a tone sounds. You can select items from any of these categories for display in any data box — the category divisions are only there to help you sort through the informa- tion. To change the information displayed in a data box: 1. Page Flasher Flasher The Flasher sonar page option represents a flasher style sonar com- bined with a scrolling chart. A circular dial shows all returning echoes at a high screen refresh rate. It uses the Colorline feature to show weaker targets as lighter colors.

The bottom depth is also shown as a black bar across the outer circle. Page 99 2. Press , select MENU shown menu will appear. Highlight the desired data category and press pand the list, revealing several subcategories with checkboxes next to them.

Page To resize Sonar and Custom Gauge windows: 1. Page Sonar Simulator Sonar Simulator This unit has a built-in simulator that lets you run it as if you were on the water. All sonar features and functions are useable.

When in simu- lator mode, you will see the chart file name in the Sonar Page title bar and a play symbol will flash on and off at the right end of the title bar. Page Title bar with chart file name Sonar Page, playing a recorded sonar chart in Sonar Simulator mode.

To see how, read the entry in this section on Log Sonar Chart Data. To play back your own sonar chart, make sure the MMC containing the chart is installed, then: 1.

NOTE: If you turn on your unit before attaching a transducer, it may enter a demo mode. The words "demo mode" flash on the bottom of the screen and a sonar chart plays much like the simulator. Unlike the simulator, the demo mode is for demonstration only, and will auto- matically stop as soon as you turn on the unit with a transducer at- tached. Page Surface Clarity Surface Clarity The markings extending downward from the zero line on the chart are called "surface clutter. The surface clarity control reduces or eliminates surface clutter signals from the display.

The right view shows Surface Clarity set at High. Transparency Use the transparency menu to adjust the transparency of menu win- dows. A high transparency allows you to continue monitoring the screen's display while adjusting feature settings, though the text of the menus may fade until it is unreadable.

Page Section 5: Sonar Troubleshooting Section 5: Sonar Troubleshooting If your unit is not working, or if you need technical help, please use the following troubleshooting section before contacting the customer ser- vice department. It may save you the trouble of returning your unit for repair.

Page If the sonar can't find the bottom signal while it's in the automatic mode, the digital sonar display will flash continuously. It may change the range to limits far greater than the water you are in. If this hap- pens, place the unit in the manual mode, then change the range to a realistic one, for example, feet and increase the sensitivity. Page To eliminate or minimize the effects of electrical noise, first try to de- termine the cause.

With the boat at rest in the water, the first thing you should do is turn all electrical equipment on the boat off. Make sure the engine is also off. Page Notes The tuto- rials presented in Sec. Before you turn on the unit and find where you are, it's a good idea to learn about the different keys, the four Page screens and how they all work together.

Each page represents one of the unit's major operation modes. Page Point of Interest or map cursor location; or after you reach the end of a route or trail. Page North is at the top of the screen. You can use this to see which satellites are obstructed by obstacles in your immediate area if the unit is facing north. The GPS receiver will track satellites that are in bold type.

The re- ceiver hasn't locked onto a satellite if the number is grayed out, there- fore it isn't being used to calculate your position. Page Navigation Page 4. Select the desired subcategory and press checkmark in the checkbox, showing the selected data is set for display. If you want to display other data types, repeat Steps 4 and 5. Press repeatedly to get back to the Custom Gauges page. Page path you've just taken, is depicted by the line extending from the ar- row.

The arrow pointing down at the top of the compass rose indicates the current track direction of travel you are taking. Track or compass heading indicator, showing direction of travel Navigation information displays in Page Speed ground speed is the velocity you are making over the ground.

If you wish, you can customize the Speed data box to display Closing Speed instead. Closing Speed is also known as velocity made good. It's the speed that you're making toward the waypoint. For instructions, see the Customize Page Displays entry in Sec. Page Map Page You can use the keys to change the cross track error range.

ZOUT A circular symbol showing your destination waypoint appears on the screen as you approach the waypoint, as shown on the screen in the preceding figure. Travel Time is the time that it will take to reach your destination at your present closing speed. Page Background Map Vs. Mapcreate Map Content Map Page opening screen left. Set to mile zoom center and mile zoom right.

Over Zoomed means you have reached the detail limits in an area covered only by the basic background map. Zooming in closer will reveal no more map detail because a high-detail custom map has not been loaded on the MMC for this area.

Page national forests and parks ; some major city streets; Interstate, U. Page Tip: In some urban areas, businesses are so close to one another that their POI icons crowd each other on the screen.

You can reduce screen clutter and make streets and other map features easier to see by simply turning off the display of POIs you're not watching for.

The windows are in a horizontal position. Map Page with two vertical windows right. Resize Window is another feature for pages that have two major win- dows. You can change the horizontal size of the windows to suit your viewing preference.

Resize Windows se- lected on Map with Sonar menu center. Dual arrows are shown as Map with Custom Gauges The Map with Custom Gauges page has a split screen with a map on the right side and digital gauge information on the left side.

Page Radar 4. Press repeatedly to get back to the Map with Custom Gauges page. Page Radar Page left with Radar menu display right. To access Radar Page: 1. Press to open the Radar menu. The following page contains a step quick reference for the most basic GPS operations. As you practice, try navi- gating to a location at least a few blocks away.

Navigation in too small an area will constantly trigger arrival alarms. With- out obstruction from dense foliage, terrain or structures, the unit auto- matically searches for satellites and calculates its position in approxi- mately one minute or less. If for some reason satellite acquisition takes longer, you may be inside a structure or vehicle or in terrain that is blocking signal reception.

Selecting Any Map Item with the Cursor 1. Use the zoom keys and the arrow keys to move around the map and find the item you wish to select. Page After the unit has acquired a position: 1. You could search the entire restaurant category, but in this example we will narrow our search. The unit says it is calculating, then a list of restaurants appears, with the closest highlighted at the top of the list. Page Set A Waypoint 6. The unit's map appears, with the cursor crosshairss highlighting the restaurant's POI symbol.

A pop-up data box shows the POI's name, dis- tance and bearing. A data box at the bottom of the screen continues to display the location's latitude and longitude. Map screen showing Finding Waypoint, 7.

Page Create Waypoint at Current Position While you are traveling, press automatically given a name with a sequential number, such as "way- point Step 1. Step 3. Sequence for setting a waypoint. Use the arrow keys to move the cursor crosshairs to the place where you want to make a waypoint. Press name with a sequential number, like "waypoint Navigate To a Waypoint You can select any waypoint visible on the Map Page with the cursor, then use the Navigate to Cursor command we'll describe how later in Page Navigate Back To Mob Waypoint Of course, the first thing to do is remain calm and then use all standard safety procedures to rescue the person.

This unit has a man overboard feature that shows navigation data to the location where the feature was activated. To activate it, press the keys at the same time. Page 1. Use the cursor controlled by the arrow keys with the zoom in and zoom out keys to maneuver around the map until you find a location you want to go to. Center the cursor over the location to select it. See the example in the following figure. Page By default, the trail flashes once a second, making it easier to see against the background map.

With the default auto setting, this unit creates a trail by placing a dot trail point on the screen every time you change di- rections. Any new travel will be recorded in this trail, which is active and visi- ble. Trails do not need to be visible in order to be active. You can save and recall up to 10 different plot trails, which can be cop- ied to your MMC for archiving or for transfer to your MapCreate soft- ware.

Page Navigating Trails To turn on trail display: 1. EXIT Navigating Trails There are three methods for following a trail: visual trailing, navigat- ing a trail forward and backtracking a trail backward.

Page 3. NOTE: If you are already located at or near the beginning of your trail, the arrival alarm will go off as soon as you hit Enter.

Press clear the alarm and proceed. Northbound driver has reached point 6 and has turned west to follow trail right. Track or compass heading indicator Trail waypoint symbol Course Now, begin navigating with your unit.

Page Transfer My Data highlighted left. When transferring data right you will have the option of transferring the unit's data to a MMC card or loading the data on the MMC card into the unit.

Page Cancel Navigation Figure 1. Figure 3. Cancel Navigation You can turn off any of the navigation commands after you reach your destination or at any other time by using the Cancel Navigation com- mand. While on the Map Page press: 2. Center your cursor over the position you want to find the distance to.

A rubber band line appears, connecting your current position to the cursor's location. Page Icons Icons Icons are graphic symbols used to mark some location, personal point of interest or event.

They can be placed on the map screen, saved and re- called later for navigation purposes. These are sometimes referred to as event marker icons. This unit has 42 different symbols you can pick from when creating an icon. Page Navigate To An Icon 1. All icons will be deleted from the map. The Delete by Symbol command will launch the Select Symbol menu. Routes are composed of one or more legs. The legs of all GPS routes are based on straight lines between waypoints.

A route provides the automatic capability to navigate through several waypoints without having to reprogram the unit after arriving at each waypoint. Edit Route menu left. Use the Zoom keys and arrow keys to move the map and cursor until the cursor is centered on the spot where you want your route to begin. Page Delete A Route 4. Set the first route waypoint: press our route at the intersection of 11th Street and th E.

The route ends at a public hunting area next to a river. Our route creation ex- ample is illustrated in the following figures. Route creation sequence, continued: Fig. Routes menu center. Edit Route menu right. Navigate is selected on Edit Route menu. Page Trails Figure 1. Navigating along a route: Fig. In Fig. Press then repeatedly to return to the previous page display.

Edited trail with Utilities Utilities are useful tools for traveling or for outdoor activities. Page Edit A Waypoint To delete a waypoint from the map: 1. Use the arrow keys to select the waypoint with the cursor. Page Selecting A Waypoint Selecting a Waypoint To select a waypoint on the map for navigating to, for editing, etc. A highlighted halo will appear around the waypoint. Create Waypoint by Entering a Position 1. Select the desired option and press Set a Waypoint by Average Position This feature sets a waypoint at the current position after taking several position readings and averaging them.

The factory default setting has all of these but the anchor alarm turned on. You can turn the alarms off and on and change their distance settings. You can set an arrival alarm to flash a warning message and sound a tone when you cross a preset distance from a waypoint. Elevation [altitude] is also used in the equation, but it's rarely required to determine a position. It needs this data so that it can calculate which satellites should be in view.

Highlight a file and press select it. Press repeatedly to return to the main display. Page Configure Nmea For connectors and wiring information for another device, see page For assistance in configuring the unit to communicate with another device, consult the factory.

Customer service phone numbers are in the back of this manual. This system divides the Earth into 60 zones, each 6 degrees wide in longitude. British, Irish, Finnish, German, New Zealand, Swedish, Swiss, Taiwan, and Greek grid systems are the national coordinate system used only in their respective countries. Map Fix Map Fix is used with charts or maps.

It then shows the present position as distance on the map from that reference point. Page Customize Page Displays 4. Press and enter the map's scale. This is generally at the bottom of the paper map. It is shown as a ratio, like Press the unit to return to the Configure Map Fix screen. Configure a map fix so the unit can find your position on a printed 5.

Selecting the category name and pressing contents, so you can choose items within it. An expanded category one with a "—" next to its name can be collapsed to hide its contents. Just select the category name and press 3. The page has dialog boxes that allow you to change the Track, Speed, Altitude, Latitude and Longitude of your simulation.

You can begin your simulation at a waypoint by using the Select Start- ing Waypoint command or direct the simulation manually by using the Steer with Arrows command, which will place Steer with Arrow boxes on the main display.

Simulating Trail or Route Navigation In Simulator mode, your unit can automatically follow a trail or route without manual steering if you use these steps: 1. From the Map Page, go to the simulator menu. A message appears, prompting you to move the cursor to the desired location.

Move the cursor to the desired location and press When the message automatically clears, follow the message instruc- tions. Page Map Menu left. Map Data Menu right. From the Map Page, press 2. Range rings are handy for visually estimating distances on the map. The ring diameters are based on the current zoom range. Map Detail Category Selection This menu determines which of the mapping features are shown on the screen. This includes: waypoints, trails, icons, cities, highways, etc.

You can turn on or off any of these items to customize the map. To get to Map Categories: 1. Page In Track Up mode, map shows "N" and arrow to indicate north. What you see to your left corresponds to the left side of the map, to your right is shown on the right side of the map, and so on. The sonar's microprocessor calculates the time lapse between the. The whole process repeats it self several time s each second.

Your unit can record a log of the sonar signals that scroll across the. These recordings are. You can replay this sonar log. The viewer is available for. You can save several different sonar log files, erase 'em and record new.

The size of your sonar recordings is only lim-. Supplies: rubbing alcohol, grit sandpaper, specially formulated epoxy adhesive available from LEI see ordering information on the inside back cover. A sandwich hull also requires polyester resin. The location must be in the water at all times, at all operating speeds. 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.

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. Typically, a good transom location on aluminum boats is between the ribs closest to the engine. 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.

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. 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. 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. Use caution when routing the transducer cable around these wires.

This will help prevent the transducer from entering the boat if it is knocked off at high speed. 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. 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. 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 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 transommounted transducer.

A transducer mounted inside the hull can't be knocked off when docking or loading on a trailer. 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. 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 lesson to determine if you can satisfactorily shoot through the hull.

The best way to install these transducers is to loosely assemble all of the 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.

The following instructions sometimes vary depending on the mounting bracket that came with your transducer. Single-frequency Skimmers come with a one-piece stainless steel bracket, while dual-frequency Skimmers come with a two-piece plastic mounting bracket.

Use the set of instructions that fits your model. One-piece 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.

Two-piece bracket: Locate the four plastic ratchets in the transducer's hardware package. Press two ratchets into the sides of the plastic bracket and two on either side of the transducer as shown in the following illustrations. Place the ratchets into the bracket with the letter "A" aligned with the alignment mark molded into the bracket.

Place the ratchets onto the transducer with the letter "A" aligned with the 12 o'clock position on the transducer stem. Aligning the transducer on the transom. One-piece bracket: 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 3A. If it doesn't, repeat step 2A, but use a different alignment letter until you can place the transducer on the transom correctly.

Two-piece bracket: Assemble the transducer and bracket as shown in the following figure. Temporarily slide the bolt though the transducer assembly but don't tighten the nut at this time. Hold the assembled transducer and bracket against the transom. If it does, then the "A" positions are correct for your hull. If the transducer's face isn't parallel with the ground, remove and disassemble the transducer and ratchets.

Place the ratchets into the bracket holes with the letter "B" aligned with the bracket alignment mark. Place them on the transducer aligned with the 12 o'clock position on the transducer stem.

If you can, then go to step 3B. If it doesn't, repeat step 2B, but use a different alignment letter until you can place the transducer on the transom correctly. One-piece bracket: Once you determine the correct position for the ratchets, assemble the transducer as shown in the following fig-.

Two-piece bracket: Once you determine the correct position for the ratchets, assemble the transducer as shown in the figure in step 2B. Don't tighten the lock nut at this time. 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! 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. For the one-piece bracket, use the 29 bit for the 10 screws. For the two-piece bracket, use the 20 bit for the 12 screws.

Position transducer mount on transom and mark mounting holes. Side view shown, left, and seen from above at right. Attaching transducer to transom. One-piece bracket: 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. For single-frequency Skimmer, route cable over bolt and through bracket.

Both bracket types: 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's mounting screws, sealing them with the sealant. Don't over tighten the lock nut!

If you do, the transducer won't "kick-up" if it strikes an object in the water. Align transducer centerline with hull bottom and attach transducer to transom. Rear view of dual-frequency Skimmer shown. 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. Electrical noise from the engine's wiring, bilge pumps, VHF radio wires and cables, and aerators can be picked up by the sonar. 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 be 1". 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 aboveor below-waterline sealant used for the mounting screws. Make a test run to determine the results. If the bottom is lost at high speed, or if noise appears on the 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! Attach the optional TMB-S bracket to the transducer as shown in the following figure, using the hardware supplied with the transducer.

Internal tooth washer. 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. 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. 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.

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. 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.

See the following figure. 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. 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 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.

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. Shoot-thru-hull transducer locations for high speed or trolling speed operation. To choose the proper location for shoot-thru-hull mounting, follow these testing procedures: You may need a helper to complete these steps. 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 sensitivity and range controls until a second bottom echo is seen on the display. 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. True bottom. Example of a second bottom signal. Unit is in 30 feet of water, with range set at 80 feet and sensitivity set at 87 percent. 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. 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.

Most people 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. 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. When you're satisfied with a location, mark it and proceed with the installation. If you are installing the transducer on a hull with floatation material sandwiched within the hull, refer to the text "Hulls With Flotation Materials" beginning on page 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 grit sandpaper.

The surface of the hull must be flat so the entire transducer face is in contact with the hull prior to bonding. After sanding, clean the hull and transducer with rubbing alcohol to remove any sanding debris.

Spread epoxy here. To bow. 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. 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 the transducer should be parallel with the hull, with a minimum amount of epoxy between the hull and transducer.

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. After the epoxy has cured, route the cable to the sonar unit and it's ready to use. All the units in this series can display speed and distance traveled, but only the LMScDF comes packed with a speed sensor.

If you wish to purchase an optional additional sensor for your unit, refer to the accessory ordering information inside the back cover of this manual.

The following instructions describe how to install the speed sensor. First find a location on the boat's transom where the water flow is smoothest. Don't mount the sensor behind strakes or ribs. These will disturb the water flow to the speed sensor. Make sure the sensor will remain in the water when the boat is on plane. Also make sure the location doesn't interfere with the boat's trailer. Typically, the sensor is mounted about one foot to the side of the transom's centerline.

Once you've determined the proper location for the unit, place the sensor on the transom. The bottom of the bracket should be flush with the hull's bottom. Using the sensor as a template, mark the hull for the screws' pilot holes.

Mount the sensor to the hull using 8 stainless steel wood screws not included. Use a high quality, marine grade aboveor below-waterline sealant to seal the screws. Make sure the sensor is flush with the bottom of the hull and tighten the screws. Good location. If the base of the transom has a radius, fill the gap between the transom and the sensor with the sealant.

This will help ensure a smooth water flow. Route the sensor's cable through or over the transom to the sonar unit. After installation, be sure to seal the hole with the same marine grade aboveor below-waterline sealant used for the screws.

The sensor is now ready for use. Connect the sensor to the sonar socket on the back of your unit and connect the transducer to the speed sensor's socket. If you have any questions concerning the installation of the sensor, please contact your local boat dealer. The thicker three-wire cable white, red and black is the power supply for your display unit. This cable has no label. The thinner branch with three wires red, black and shield is the power cable for a NMEA network.

Data cable wires: blue, yellow, orange,. There are two basic power connection options, which are shown in the following two diagrams.

Read the following instructions carefully to determine which power connection applies to your unit. Depending on your configuration, you may not use all of these wires. The bare ends on any unused wires could cause an electrical short if left exposed. To prevent this, you should cover the individual wire ends — either by capping them with. You should cut off the bare wire before taping off the ends. The display unit works from a volt DC battery system. Attach the display power cable with provided 3-amp fuse to an accessory switch or power bus.

If this results in electrical interference, connect direct to a battery but install an in-line switch on the cable. We strongly recommend that you shut off the power supply to the power cable when the unit is not in use, especially in saltwater environments.

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. Risk of electrolysis corrosion is even greater when the cable is unplugged from the unit, but still connected to a power source.

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 in-line switch.

This will let you shut off power to the power cable when the unit 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. This product must be independently fused with the enclosed 3-amp fuse or equivalent , even if you connect to a fused accessory or power bus. If a malfunction happens inside the unit, extensive damage can occur if the enclosed fuse is not used. As with all electrical devices, this unit could be damaged to a point it cannot be repaired and could even cause harm to the user when not properly fused.

If possible, keep the power cable away from other boat wiring, especially the engine's wires. This will provide the best isolation from electrical noise.

If the cable is not long enough, splice 18 gauge wire onto it. The display power cable has three wires, white, red and black. The white wire is unused by your unit and should be capped. 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 power bus or battery, attach one end of the fuse holder directly to the power bus or battery.

This will protect both the unit and the power cable in the event of a short. 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. Fuses may be different from those shown. However, never connect multiple power sources to a NMEA network. If you have a network that is already powered, see diagram B on page Fuse may be different from that shown.

The method in diagram B is also used when your display unit is connected to a NMEA network that is already connected to power. A NMEA bus must be connected to a power source to operate. If you have a pre-existing NMEA network installation, it may already be connected to another power source. If you are not sure about a network's power status, consult the boat manufacturer or dealer.

The NMEA Power cable's black and shield wires should both be attached to the negative — terminal. The NMEA network bus is always on and constantly drawing power. You must connect NMEA power to a switched power source so you can turn off the network when not in use. Failure to connect to and use a power switch will drain your boat battery, which could stop your boat's operation.

Your unit can be connected to a NMEA bus, receiving sensor information from units and devices attached to the network.