The transmitter emits an electrical impulse, which the transducer converts into a sound wave and sends into the water. (The sound frequency can't be heard by humans or fish.) The sound wave strikes an object (fish, structure, bottom) and bounces back to the transducer, which converts the sound back into an electrical signal. The receiver amplifies this return signal, or echo, and sends it to the display, where an image of the object appears on the scrolling sonar chart. The sonar's microprocessor calculates the time lapse between the transmitted signal and echo return to determine the distance to the object. The whole process repeats itself several times each second.
How to use this manual: typographical conventions
Many instructions are listed as numbered steps. The keypad and arrow "keystrokes" appear as boldface type. So, if you're in a real hurry (or just need a reminder), you can skim the instructions and pick out what menu command to use by finding the boldface command text. The following paragraphs explain how to interpret the text formatting for those commands and other instructions: Arrow Keys The arrow keys control a horizontal line depth cursor on the sonar screen. The arrow keys also help you move around the menus so you can execute different commands. They are represented by symbols like these, which denote the down arrow key, the up arrow, the left arrow and the right arrow: . Keyboard The other keys perform a variety of functions. When the text refers to a key to press, the key is shown in bold, sans serif type. For example, the "Enter/Icons" key is shown as ENT and the "Menu" key is shown as MENU. Menu Commands A menu command or a menu option will appear in small capital letters, in a bold sans serif type like this: DEPTH CURSOR. These indicate that you are to select this command or option from a menu or take an action of some kind with the menu item. Text that you may need to enter or file names you need to select are show in italic type, such as data type. Instructions = Menu Sequences Most functions you perform with the sonar unit are described as a sequence of key strokes and selecting menu commands. We've written them in a condensed manner for quick and easy reading. 4
For example, instructions for turning on the Fish ID feature would look like this: 1. From the Sonar Page, press MENU| to SONAR FEATURES|ENT. 2. Press to FISH SYMBOLS|ENT|EXIT|EXIT. Translated into complete English, step 1 above would mean: "Start on the Sonar Page. Press the Menu key then repeatedly press (or press and hold) the down arrow key to scroll down the menu and select (highlight) the Sonar Features menu command. Then press the Enter key." Step 2 would mean: "Press the right arrow key to select (highlight) the Fish ID symbols command. Next, press the Enter key, then press the Exit key twice."

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. These positions set the transducer's coarse angle adjustment for a 14 transom. Most outboard and stern-drive transoms have a 14 angle.
Alignment letters Alignment positions
Transducer Transducer bracket Insert and align ratchets. Transducer Transducer bracket

Ratchet

Add ratchets to bracket and transducer.
2. Aligning the transducer on the transom. A. 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. 12
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.

Ratchets

Insert bolt and check transducer position on transom.
B. 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. 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" 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. 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 3B. If it doesn't, repeat step 2B, but use a different alignment letter until you can place the transducer on the transom correctly.

Sonar Menu with Sensitivity command selected (left). The Sensitivity Control Bar (right).
NOTE: If you want to change the sensitivity in Manual Mode, first turn off Auto Sensitivity: from the Sonar Page, press MENU| to AUTO SENSITIVITY|ENT| to SENSITIVITY|ENT. Press or to pick a different sensitivity setting. When it's set at the desired level, press EXIT.

Important Tip:

While you are experimenting and learning, it's possible to scramble the settings so that the sonar picture disappears from your screen. If that happens, remember that it's easy to switch back to full automatic operation by simply restoring the factory auto settings. Here's how:
To Restore Factory Settings
1. Press MENU|MENU| to RESET OPTIONS|ENT.
YES|ENT. All options are reset, and the unit reverts back to the
2. The unit asks if you want to reset all the options. Press to original settings.
Fish Symbols vs. Full Sonar Chart You may have noticed in the quick reference that we used fish arches in full sonar chart mode for our example, and not the popular Fish I.D. fish symbol feature. Here's why. Fish I.D. is an easier way for a sonar novice to recognize a fishy signal return when he sees it. However, locating fish by symbol only has some limitations. Your sonar unit's microprocessor is remarkably powerful, but it can be fooled. Some of the echoes calculated to be fish could be tree limbs or turtles! 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. Fish I.D. is most handy when you're in another part of the boat or performing some task that prevents you from watching the sonar screen. Then, you can turn on Fish I.D. and the audible fish alarm. When that lunker swims under your boat, you'll hear it! Fish I.D. can also be useful when you want to screen out some of the sonar detail gathered by your unit. For example, in one case fishermen in San Francisco Bay saw clouds of clutter in the water but no fish arches. When a down rigger was pulled up, it brought up several small jellyfish. The fishermen switched their Lowrance sonar to Fish I.D., which screened out the schools of jellyfish and clearly showed the game fish there as fish symbols. 46
Other Free Training Aids The sonar options section discusses Fish I.D., fish alarms and other features in greater detail. If you or a friend has Internet access, you can also learn more about interpreting what you see on your sonar screen. Visit our web site, WWW.LOWRANCE.COM. Be sure to check out the free Sonar Tutorial, which includes animated illustrations and more pictures of actual sonar returns, all described in detail. There's even a "printer friendly" version of the tutorial available on our web siteit makes a great supplement to this operation manual! For the ultimate training aid, be sure to download the free emulator software for your unit. Aside from being just plain fun, this program can help you learn both basic and advanced operations without burning boat fuel! Lowrance is the first sonar manufacturer to provide this type of training tool for customers. This PC application simulates the actual sonar unit on your computer. You can run it from your computer keyboard or use your mouse to press the virtual keys. Easy download and installation instructions are available on our web site.

Free training emulator is available for your unit on our web site.
Section 4: Sonar Options & Other Features
ASP (Advanced Signal Processing) The ASP feature is a noise rejection system built into the sonar unit that constantly evaluates the effects of boat speed, water conditions and interference. This automatic feature gives you the best display possible under most conditions. The ASP feature is an effective tool in combating noise. In sonar terms, noise is any undesired signal. It is caused by electrical and mechanical sources such as bilge pumps, engine ignition systems and wiring, air bubbles passing over the face of the transducer, even vibration from the engine. In all cases, noise can produce unwanted marks on the display. The ASP feature has four settings Off, Low, Medium and High. If you have high noise levels, try using the "High" ASP setting. However, if you are having trouble with noise, we suggest that you take steps to find the interference source and fix it, rather than continually using the unit with the high ASP setting. There are times when you may want to turn the ASP feature off. This allows you to view all incoming echoes before they are processed by the ASP feature.
Sonar Menu with Sonar Features selected (left). Sonar Features menu (center) with Noise Rejection set to the default low setting. (Note the Transducer Frequency segment of the Sonar Features menu will not be present in the single frequency X-510c.)
To change the ASP level 1. From the Sonar Page, press MENU| to SONAR FEATURES|ENT. 2. Press to NOISE REJECTION|ENT. 49
3. Press or to select a setting, then press ENT. 4. To return to the previous page, press EXIT|EXIT.

Alarms

This unit has three different types of sonar alarms. The first is the Fish Alarm. It sounds when the Fish I.D. feature determines that an echo is a fish. Another alarm is the Zone Alarm, which consists of a bar on the side of the screen. Any echo on the chart that appears inside this bar triggers this alarm. The last alarm is the Depth Alarm, which has both a Shallow and a Deep setting. Only the bottom signal will trigger this alarm. This is useful as an anchor watch, a shallow water alert or for navigation. Depth Alarms The depth alarms sound a tone when the bottom signal goes shallower than the shallow alarm's setting or deeper than the deep alarm's setting. For example, if you set the shallow alarm to 10 feet, the alarm will sound a tone if the bottom signal is less than 10 feet. It will continue to sound until the bottom goes deeper than 10 feet. The deep alarm works just the opposite. It sounds a warning tone if the bottom depth goes deeper than the alarm's setting. Both depth alarms work only off the digital bottom depth signals. No other targets will trip these alarms. These alarms can be used at the same time or individually.

HyperScroll

See the entry on Ping Speed, which controls the HyperScroll feature.

Noise Rejection

See the entry on Advanced Signal Processing in this section.

Overlay Data

To change the digital data shown on top of the sonar page: 1. Press MENU| to OVERLAY DATA|ENT. 2. Highlight (PRESS ENT TO ADD) and press ENT.
Overlay Data command on the Sonar Menu (left). Overlay Data Shown selection menu (right).
3. The Data Viewer page will appear with three data categories: Time, Sonar Data and Sensor Data. 4. Highlight the desired data category and press ENT, which will expand the list, revealing several subcategories with checkboxes next to them. 5. Select the desired subcategory and press ENT, which will place a checkmark in the checkbox, showing the selected data is set for display.
The Data Viewer menu with Time selected (left). Time-data categories are visible (right). Local Time is selected.
6. Press EXIT repeatedly to get back to the main display.
To change Overlay data size: 1. Press MENU| to OVERLAY DATA|ENT.
2. Highlight the Data Type you want to resize, then use to set the data to the desired size to one of four options: Off, Small, Medium, Large and Enormous. 64
Local Time highlighted on Overlay Data Shown menu (left). The size of Local Time data has been changed to Large (right).
3. To change the font size for another Data Type, repeat the steps above. To return to the sonar display, press EXIT.
Sonar chart with Overlay Data turned on. This example shows Depth, Water Temperature and the Water Speed of the boat.
Ping Speed & HyperScroll
Ping Speed controls the rate at which the transmitter and transducer broadcast sonar sound waves pings into the water. The unit has a default ping speed of 50 percent. At normal boating speeds, this automatically provides enough return echoes to refresh the screen and scroll the chart at maximum chart speed. However, when you are running at high speeds, or just want the fastest possible screen update, you may want to use the HyperScroll feature. When you change the Ping Speed to any setting greater than 50 percent, the unit automatically enters HyperScroll mode. 65
These faster ping rates allow you to maintain a high-detail picture on the screen, and the screen refresh rate and chart scroll speed can keep pace with the boat as it moves quickly over the bottom terrain. When using HyperScroll, you may also need to manually decrease the sensitivity for optimum performance. Depending on water depth and other conditions, HyperScroll may cause a second bottom echo to return to the transducer during the next ping cycle, or sounding. This can result in a large amount of clutter appearing on the screen. If this occurs, just decrease the sensitivity to a level that eliminates the clutter. When you turn HyperScroll off, you can return to your original sensitivity level.

Screen Command (left). Screen Menu with Contrast bar selected (right).
To adjust the display's brightness: Press to BRIGHTNESS. Press or to move the bar. The left end of the scale is minimum contrast; the right end is maximum contrast. To adjust the screen's display mode: Press to DISPLAY MODE|ENT|press or to select mode|EXIT.

Display Mode menu.

Sensitivity & Auto Sensitivity
The sensitivity controls the ability of the unit to pick up echoes. Sensitivity can be adjusted, because water conditions vary greatly. A low sensitivity level (from zero to 50 percent) excludes much of the bottom information, fish signals, and other target information. High sensitivity levels let you see this detail, but it can also clutter the screen with many undesired signals. 69
Typically, the best sensitivity level shows a good solid bottom signal with some surface clutter. Automatic Sensitivity The default sensitivity mode is automatic. The unit bases the sensitivity level on water depth and conditions. When the unit is in the automatic mode, sensitivity is automatically adjusted to keep a solid bottom signal displayed, plus a little more power. This gives it the capability to show fish and other detail. However, situations occur when it becomes necessary to increase or decrease the sensitivity. This typically happens when you wish to see more detail or when wave action and boat wakes create enough tiny air bubbles to clutter much of the water column. In that case, a decrease in sensitivity is indicated to reduce some of the clutter. The control bar used to adjust sensitivity is the same whether the unit is in the automatic or manual mode. In automatic you can adjust sensitivity up to 100 percent but the unit will limit your minimum setting. In auto, the unit will continue to make small adjustments, allowing for the setting you selected. In manual mode, you have complete control over sensitivity, with the ability to set it anywhere from zero to 100 percent. Once you select a level in manual, the unit will continue to use that exact sensitivity setting until you change it or revert to auto mode. To adjust sensitivity in auto mode: 1. Press MENU|ENT. 2. The Sensitivity Control Bar appears. Press to decrease sensitivity; press to increase sensitivity. When it's set at the desired level, press EXIT. (When you reach the maximum or minimum limit, a tone sounds.)
To adjust sensitivity in manual mode 1. First, turn off Auto Sensitivity: from the Sonar Page, press MENU| to AUTO SENSITIVITY|ENT. 2. Press to SENSITIVITY|ENT and the Sensitivity Control Bar appears. Press or to pick a different sensitivity setting. When it's set at the desired level, press EXIT. Repeat these steps to turn on Auto Sensitivity. NOTE: To return to the original factory setting for Auto Sensitivity, see the entry in this section on Reset Options. If sensitivity is in manual mode, the Reset Options command will switch back to Auto and reset the factory setting at the same time.

Set Language selected on main menu (left). Language menu (right).
To select a different language: 1. Press MENU|MENU| to SET LANGUAGE|ENT. 2. Use or to select a different language and press ENT|EXIT. All menus now appear in the language you selected.
Software Version Information
From time to time, Lowrance updates the operating system software in some of its products. These software upgrades are usually offered to customers as free downloads from our web site, www.lowrance.com. These upgrades make the unit perform better or introduce a new feature or function. You can find out what software version is running in your sonar unit by using the Software Information command. To view software information: 1. Press MENU|MENU| to SOFTWARE INFO|ENT. 2. Read the information displayed on the screen. 3. To return to the last page displayed, press EXIT|EXIT.

Sonar Chart Mode

The default color scheme for the sonar chart is a white background, but we offer several other options to suit your viewing preferences. You can select the chart to be displayed in Grayscale, Reverse Grayscale, Blue Background, White Background, Nightview, IceView and Bottom Color Tracking. To change the chart mode color scheme 1. From the Sonar Page, press MENU| to SONAR FEATURES|ENT. 2. Press then, to SONAR CHART MODE|ENT. 73
3. Press or to Mode Name|ENT. 4. Press EXIT|EXIT to return to the Sonar Page.
Sonar Chart Display Options
The Pages Menu offers five chart display options for dual-frequency models and four options for single-frequency models. To access them, press PAGES| to Option Name|EXIT.
Pages Menu showing sonar chart display options. Split Frequency Sonar chart page is only available in the X-515cDF.
Full Sonar Chart This is the default mode used when the unit is turned on for the first time or when it's reset to the factory defaults. The bottom signal scrolls across the screen from right to left. Depth scales on the right side of the screen aid in determining the depth of targets. The line at the top of the screen represents the surface. The bottom depth and surface temperature (if equipped with a temperature sensor or a transducer with a temp sensor built in) show at the top left corner of the screen. The FasTrack display is just to the right of the depth scale. This changes all echoes into short horizontal bars, replicating a flasher sonar. The zoom bar on the far right shows the area that's magnified when the zoom is in use. (See the Zoom section on page 86 for more information.)

Upper and Lower Limits

See the entry in this section for Depth Range - Upper and Lower Limits

Zoom & Zoom Bar

Zooming in the display is a common, fast and easy method used to enlarge small detail, fish signals and bottom structure. This unit lets you zoom in quickly and easily by pressing the Zoom In key, ZIN. Pressing ZIN once doubles the size (2X) of all echoes on the screen. Pressing it again quadruples the size of the echoes (4X). The blue zoom bar on the far right side of the screen shows which echoes will be displayed on the screen when the ZIN key is pressed. Pressing the ZIN key once will enable a 2X zoom which will show all echoes that are between the top and bottom of the 2X zoom bar. Pressing the key again will give a 4X zoom and only the echoes between the top and bottom of the 4X bar will be displayed. Press the Zoom Out key, ZOUT, to return the display to the normal mode.
The first image (left) is a full sonar chart zoomed 2X. The second image (right) is the same view zoomed 4X.

Zoom Pan

Your unit has the handy ability to quickly zoom in on any portion of the water column with just the touch of an arrow key. The Zoom Pan feature lets you rapidly move the zoomed area up and down to different depths. By "pointing" your zoom at different portions of the chart as it scrolls, you can get a good, close-up look at structure or cover below you. To use Zoom Pan, switch to a manual depth Range setting (see page 57) and turn on 2X or 4X Zoom. Then press to pan up and down the water column.
Section 5: NMEA 2000 Menu

NMEA 2000 Menu

The NMEA 2000 menu on your display unit's main menu allows you to configure, calibrate and monitor devices on your NMEA 2000 network. It provides access to the Bus Setup, Fuel Management and NMEA 2000 Alarms. You also can turn on/off Waypoint Sharing and Backlight Synchronization from the NMEA 2000 menu.
Bus Setup highlighted on the NMEA 2000 menu.
Bus Configuration menu (left). NMEA Diagnostics page (center). Ethernet Diagnostics (right)

Bus Setup

Selecting Bus Setup from the NMEA 2000 menu gives you access to the Bus Configuration menu and the NMEA Diagnostics and Ethernet Diagnostics pages. The Bus Configuration menu allows you to choose an engine-tank configuration and manage devices on the network. When the Bus Configuration menu is accessed, a list will appear of all NMEA 2000 devices on the network. 89
The NMEA Diagnostics page displays information about the performance of the network bus, keeping you updated on bus status, mode, errors and bus traffic. The Ethernet Diagnostics page keeps you updated on the performance of an Ethernet connection (if applicable) supplying information ranging from IP Address to upload and download rates (bytes per second). To refresh either Diagnostics page, highlight the PING ALL DEVICES button at the bottom of the page and press ENT. The network devices list is located in the top half of the Bus Configuration menu. You can configure, calibrate and set alarms for devices accessed from the Bus Configuration menu network devices list. The Engine-Tank Configuration and Tank Select menus as well as the Tank Size dialog box are located on the bottom half of the Bus Configuration menu. The Set Configuration button positioned next to the engine-tank configuration menu allows you to finalize a selected configuration. NOTE: If you have not used the LMF-200 or LMF-400 to choose an enginetank configuration for your vessel, you must use your display unit to select a configuration.

Bus Configuration menu with list of network devices. Engine-Tank Configuration and Tank Select menus are at the bottom of the screen.
Engine & Tank Configuration
The Engine-Tank configuration menu is located below the NMEA 2000 Devices list, but will only be accessible if a Suzuki engine Interface, EP-10 Fuel Flow, EP-15 Fluid Level, EP-45 Pressure Sensor or EP-50 Storage Device are on the network. 90
When choosing an engine-tank configuration you will use the Tank Select menu, Tank Size dialog box and Set configuration button, all detailed below.

Tank Select

The Tank Select menu allows you to choose from up to three tanks (Port, Center and Starboard), depending on the Engine-tank configuration that has been selected. This allows you to set up each tank individually.

Tank Size

The Tank Size menu allows you to input the size of a selected tank in gallons. After selecting the desired tank from the Tank Select menu, you are ready to enter the tank's size.

Set Configuration button

The Set Configuration button is used to finalize engine-tank configuration settings. Setting Engine-Tank Configuration: 1. Press MENU| MENU, use to highlight NMEA 2000 and press ENT. 2. The NMEA 2000 menu will appear with five options: Bus Setup, Fuel Management, NMEA 2000 Alarms, Waypoint Sharing and Backlight Synchronization. Choose BUS SETUP and press ENT. 3. Select ENGINE & TANK CONFIG and press ENT, which will open the Engine & Tank Configuration menu with the following configuration options: 1 Engine/1 Tank, 1 Engine/2 Tanks, 2 Engines/1 Tank, 2 Engines/2 Tanks, 3 Engines/1 Tank, 3 Engine/3 Tanks and Unconfigured Bus.
1 Engine/1Tank highlighted on Engine and Tank Configuration menu (left). Starboard highlighted on Tank Select menu (center). Tank Size set to 40 gallons (right).
4. Choose the configuration that matches the number of engines and tanks on your vessel and press ENT. 5. Highlight TANK SELECT and press ENT, which will open the Tank Select menu. 91
6. Select the tank you want to set up and press ENT. Press to highlight the Tank Size dialog box and press ENT. 7. Use , to input the capacity (gallons) of the tank you chose from the Tank Select menu and press ENT. 8. Repeat Steps 5-7 for each remaining tank. 9. When all tanks have been configured, press the SET CONFIGURATION button. The following confirmation message will appear: Are you sure you wish to change the bus configuration? Choose YES and press ENT, Press EXIT to get back to the main display. Device Configuration Menu When a device is selected from the network devices list on the Bus Configuration menu, its Device Configuration menu will appear. Device configuration menus vary among devices. Available functions on device configuration menus allow you to change device names, tank sizes, fluid types and provide access to the Advanced Options menu. We will cover configuration and calibration later in this section. Device Information and Device Data The Device information panel, located to the left of the Device Configuration menu, displays information on the selected device that includes, software version, model, address, serial number, instance and current status.

Waypoint Sharing

Waypoint Sharing allows you to share a waypoint from one display unit with display units across the network.
To turn on/off Waypoint Sharing: 1. Press MENU|MENU, select NMEA 2000 and press ENT.
2. Highlight WAYPOINT SHARING and press ENT which will turn on/off waypoint sharing. 3. Press EXIT repeatedly to get return to the main display.
Backlight Synchronization
The Backlight Synchronization command will keep all display unit backlight levels consistent across the NMEA 2000 network. So, if you set the backlight level to 75% on one display unit, all other units on the network will automatically switch to the same setting.
To turn on/off Backlight Synchronization: 1. Press MENU|MENU, select NMEA 2000 and press ENT.
2. Highlight BACKLIGHT SYNCHRONIZATION and press ENT, which will turn on/off Backlight Synchronization. 3. Press EXIT repeatedly to get back to the main display. 96

Configuring EP Sensors

All configurable devices are configured through their Device Configuration menus, which may be accessed through the network devices list on the Bus Configuration menu. EP-35 Temperature Configuration NMEA 2000 menu will appear with five options: Bus Setup, Fuel Management, NMEA 2000 Alarms, Waypoint Sharing and Backlight Synchronization. 2. Highlight BUS SETUP and press ENT, which will open the Bus Configuration menu. A list of network devices will be at the top of the page. 3. Select the temp sensor you want to rename and press ENT. The Device Configuration menu will appear with the Device Name dialog box highlighted. 4. Press ENT and use , to input the desired name for the temp sensor. Press ENT. Press EXIT repeatedly to get back to the main display.
To select Temp Type: 1. Press MENU|MENU, use to select NMEA 2000 and press ENT. The To input Device Name: 1. Press MENU|MENU, use to select NMEA 2000 and press ENT. The
NMEA 2000 menu will appear with five options: Bus Setup, Fuel Management, NMEA 2000 Alarms, Waypoint Sharing and Backlight Synchronization. 2. Highlight BUS SETUP and press ENT, which will open the Bus Configuration menu. A list of network devices will be at the top of the page. 3. Select the desired temp sensor and press ENT. The Device Configuration menu will appear. 4. Highlight TEMP TYPE and press ENT. The following list of Temp Types will appear: Water, Outside, Inside, Engine Room, Cabin, Live Well, Bait Well, Refigeration, Heating System and Unknown. 5. Highlight the desired Temp Type and press ENT. The following confirmation message will appear: Are you sure you wish to change this device's configuration? 6. Highlight YES and press ENT. Press EXIT repeatedly to get back to the main display. Advanced Options menu The Temp sensor Advanced Options menu contains two categories: Instance and Restore Defaults.

To input Tank Size: 1. Press MENU| MENU, use to select NMEA 2000 and press ENT. The
NMEA 2000 menu will appear with five options: Bus Setup, Fuel Management, NMEA 2000 Alarms, Waypoint Sharing and Backlight Synchronization. 2. Highlight BUS SETUP and press ENT, which will open the Bus Configuration menu. A list of network devices will be at the top of the page. 3. Select the desired fluid level and press ENT. The Fluid Level Device Configuration menu will appear. 4. Highlight TANK SIZE and press ENT. Use , to input the size of the tank and press Enter. The following message will appear: Are you sure you wish to change this device's configuration? 5. Select YES and press ENT. Press EXIT repeatedly to get back to the main display. 101
Advanced Options menu The Fuel Flow sensor Advanced Options menu contains two categories: Instance and Restore Defaults.
The Restore Defaults command allows you to reset an individual EP-15 Fluid Level Sensor's settings to factory defaults. If, for example, you execute the Restore Defaults command from your Gray Water Fluid Level Advanced Options menu, only the settings for the Gray Water Fluid Level will be reset to factory defaults. Other fluid levels on the network will not be affected. NMEA 2000 menu will appear with five options: Bus Setup, Fuel Management, NMEA 2000 Alarms, Waypoint Sharing and Backlight Synchronization. 2. Highlight BUS SETUP and press ENT, which will open the Bus Configuration menu. A list of network devices will be at the top of the page. 3. Select the desired fluid level and press ENT. The Device Configuration menu will appear. 4. Highlight ADVANCED OPTIONS and press ENT. 5. Select RESTORE DEFAULTS and press ENT. The following message will appear: Are you sure you wish to change this device's configuration? 6. Highlight YES and press ENT. Press EXIT repeatedly to get back to the main display. NOTE: The Fluid Level Device Configuration menu also contains the Calibrate button, but we will address that later in the segment covering Calibration.
To restore default settings: 1. Press MENU| MENU, use to select NMEA 2000 and press ENT. The
Suzuki Engine Interface Configuration
NMEA 2000 menu will appear with five options: Bus Setup, Fuel Management, NMEA 2000 Alarms, Waypoint Sharing and Backlight Synchronization. 2. Highlight BUS SETUP and press ENT, which will open the Bus Configuration menu. A list of network devices will be at the top of the page. 3. Use to select the engine interface you want to rename and press ENT. The Device Configuration menu will appear with the Device Name dialog box highlighted. 4. Press ENT and use , to input a name for the interface. Press ENT. Press EXIT repeatedly to return to the main display.

Calibrate is highlighted on the device configuration menu (left). Calibration menu (right) with calibration instructions listed at the top. 3-Point Calibration
3-point calibration is designed for tanks that vary in shape from the top to the bottom. You can begin calibration at any point in the 3-point process, but we recommend starting calibration with an empty tank. In a 3-point calibration, you will set three points, one each for empty, half and full levels. 1. Press MENU| MENU, use to select NMEA 2000 and press ENT. 2. Highlight BUS SETUP and press ENT, which will open the Bus Configuration menu. A list of network devices will be at the top of the page. 3. Select the EP-15 Fluid Level and press ENT. 107
4. Press to select CALIBRATE and press ENT. The Device Calibration menu will appear. 5. Highlight NUM PTS, press ENT and select 3. Press ENT. 6. Make sure your tank is empty, then highlight FLUID LEVEL and press ENT. Select EMPTY LEVEL and press ENT. 7. Select CALIBRATE and press ENT. The following message will appear: Empty Level Calibration Completed. Press ENTER. 8. Add half a tank of fuel, highlight FLUID LEVEL and press ENT. Select HALF LEVEL and press ENT. 9. Select CALIBRATE and press ENT. The following message will appear: Half Level Calibration Completed. Press ENT. 10. Fill up the tank, then highlight FLUID LEVEL and press ENT. Select FULL LEVEL and press ENT. 11. Highlight CALIBRATE and press ENT. The following message will appear: Full Level Calibration Completed. Press ENT, then press EXIT repeatedly to get back to the main display.
Num Pts menu with 5-point calibration selected (left). Half level selected on Fluid Level menu (center). Calibration Done window (right). 5-Point Calibration
5-point calibration is best suited tanks that vary greatly in shape from top to bottom. You can begin calibration at any point in the 5-point calibration process. We recommend starting calibration with an empty tank. In a five-point calibration you will set five points: Empty Level, 1 Qtr Level, Half Level, 3 Qtr Level and Full Level. In a 5-point calibration, you will have four calibration points left after calibrating your tank's Empty Level. To figure out how much fuel you should add for the remaining steps of the calibration process, divide the total capacity of you tank by four. So, if you have a 40-gallon tank, each quarter tank will equate to 10 gallons.
1. Press MENU| MENU, use to select NMEA 2000 and press ENT. 2. Highlight BUS SETUP and press ENT, which will open the Bus Configuration menu. A list of network devices will be at the top of the page. 3. Select the desired EP-15 Fluid Level and press ENT. 4. Press to select CALIBRATE and press ENT. The Device Calibration menu will appear. 5. Highlight NUM PTS, press ENT and select 5. Press ENT. 6. Make sure your tank is empty, then highlight FLUID LEVEL and press ENT. Select EMPTY LEVEL and press ENT. 7. Select CALIBRATE and press ENT. The following message will appear: Empty Level Calibration Completed. Press ENT. 8. Add 1 quarter tank of fuel, highlight FLUID LEVEL and press ENT. Select

2. Electrical noise from the boat's motor can interfere with the sonar. This causes the sonar to automatically increase its discrimination or noise rejection feature. This can cause the unit to eliminate weaker signals such as fish or even structure 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. It may change the range to limits far greater than the water you are in. If this happens, place the unit in the manual mode, then change the range to a realistic one, (for example, 0-100 feet) and increase the sensitivity. As you move into shallower water, a bottom signal should appear. 4. Check the battery voltage. If the voltage drops, the unit's transmitter power also drops, reducing its ability to find the bottom or targets. 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 in order for the sonar to work at all boat speeds. Air bubbles in the water disrupt the sonar signals, interfering with its ability to find the bottom or other targets. The technical term for this is cavitation. 2. Electrical noise from the boat's motor can interfere with the sonar. This causes the sonar to automatically increase its discrimination or noise rejection feature. This can cause the unit to eliminate weaker signals such as fish or even structure 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 sure 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. In order for the unit to display a fish arch, it has to be able to receive the fish's echo from the time it enters the cone until it leaves. 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. For example, you will have much better luck seeing fish arches with a 30 to 60 foot range than a 0 to 60 foot range. This enlarges the targets, allowing the display to show much more detail. 4. The boat must be moving at a slow trolling speed to see fish arches. If the boat is motionless, fish stay in the cone, showing on the screen as straight horizontal lines. 114
NOISE A major cause of sonar problems is electrical noise. This usually appears on the sonar's display as random patterns of dots or lines. In severe cases, it can completely cover the screen with black dots, or cause the unit to operate erratically, or not at all. To eliminate or minimize the effects of electrical noise, first try to determine 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. Turn your sonar on, then turn off Noise Reject [also known as the 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. For example, turn on the bilge pump and view the sonar display for noise. If no noise is present, turn the pump off, then turn on the VHF radio and transmit. Keep doing this until all electrical equipment has been turned on, their effect on the sonar display noted, then turned off. 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. VHF radio antenna cables radiate noise when transmitting, so be sure to keep the sonar's wires away from it. You may need to route the sonar unit's power cable directly to the battery to isolate it from other wiring on the boat. If no noise displays on the sonar unit from electrical equipment, then make sure everything except the sonar unit is turned off, then start the engine. 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. Again, routing the power cable directly to the battery helps eliminate noise problems. Make sure to use the in-line fuse supplied with the unit when wiring the power cable to the battery. When no noise appears on the sonar unit after all of the above tests, then the noise source is probably cavitation. Many novices or persons with limited experience make hasty sonar installations which function perfectly in shallow water, or when the boat is at rest. In nearly all cases, the cause of the malfunction will be the location and/or angle of the transducer. The face of the transducer must be placed in a location that has a smooth flow of water at all boat speeds. Read your transducer owner's manual or the Installation instructions (Sec. 2) in this manual for the best mounting position. 115

Read Me First!

Radar Display Unit Software Update
Your display unit must have the latest software version to work with radar and the RIM 200. Depending on when you bought your display, it may require a software update. To avoid delays in setting up your radar system, your radar package includes an MMC or SD memory card with a software upgrade. 2007 Model Units You WILL NOT need to update the software version in 2007-model units which include: X510C, X515C DF sonars; LMS-520C, LMS-522C iGPS, LMS-525C DF, LMS-527C DF iGPS, LCX-27C, LCX-28C HD, LCX-37C, LCX-38C HD, LCX-112C, LCX-113C HD sonar/GPS combos; and GlobalMap 5200C, GlobalMap 5300C iGPS, GlobalMap 7200C, GlobalMap 7300C HD, GlobalMap 8200C, GlobalMap 8300C HD, GlobalMap 9200C, GlobalMap 9300C HD GPS units. 2006 Model Units If you are using a 2006-model unit, access the software information screen to make sure its software version is 1.7 or greater. If the version of software in your unit is less than 1.7 you will need to install the software update contained on the card that came with your RIM 200. You should check the software version for the following units to ensure they will work with the RIM 200: LCX-25C, LCX-26C HD, LCX-110C, LCX111C HD sonar/GPS combos; and GlobalMap 6500C, GlobalMap 6600C HD, GlobalMap 7500C, GlobalMap 7600C HD GPS units. Checking Software Version 1. With the display unit turned on, press MENU twice, use the arrow keys to highlight SYSTEM SETUP and press ENTER. 2. Use the arrow keys to select SOFTWARE INFORMATION and press ENTER. The software information screen will appear. If the version of software listed on the software information screen is less than 1.7 you will need to install the software update contained on the card that came with your RIM 200.

Pub. 988-0161-023

Copyright 2007
Printed in USA and Mex 032007
Installing Software Update 1. With the display unit turned off, install the MMC card that contains the radar software update. 2. Turn on the unit and the update will install automatically. 3. When the update is finished, the unit will power up normally. After the update is complete, remove the update MMC from the card slot. The update program will be erased automatically when the process is complete. You can now use this card to record sonar logs or GPS data. NOTE: Lowrance continues to regularly develop display enhancements and new radar features. We strongly recommend that you periodically check our web site for the latest free radar software updates. If you or a friend has Internet access, log-on to www.lowrance.com, browse to our Software page and look for the Product Updates link. Keep track of updates the easy way by subscribing to our free e-mail software release notices. Just look for the link at the bottom of our Product Software Upgrades web page. If you lack Internet access, call your dealer or Lowrance Customer Service. To obtain service in the U.S. call 1-800-324-1356 Monday through Friday from 8 a.m.-5 p.m. Central Standard Time. If you need service in Canada call 1-800-661-3983 or 1-905-629-1614 Monday through Friday from 8 a.m.-5 p.m. Eastern Standard Time. Customers trying to reach us from outside the U.S. or Canada should contact the dealer in the country where they purchased the unit. To locate a dealer near you visit the Lowrance Electronics Inc. web site at www.lowrance.com and look for the Dealer Locator link.