A NMEA 2000 network using LowranceNET components.
All Lowrance NMEA 2000 capable devices are either NMEA 2000 certified or certification is pending. See our web site, www.lowrance.com, for the latest product information. To get started with your Lowrance gauge, read Section 2: Installation. After you have read those instructions, install the gauge and any EP sensors you may have purchased, then read the rest of this manual. Each sensor comes with its own installation instruction sheet, but this manual describes how the gauge operates with each sensor and how to configure and calibrate the sensors. Your gauge packaging also includes the NMEA 2000 Networks General Information. It contains instructions for creating or expanding a NMEA 2000 network. 1
LowranceNET teams up the powerful NMEA 2000 network standard with a fast-growing, cutting-edge family of Lowrance Electronic Probe Sensors. The product line includes the EP-10 Fuel Flow, EP-15 Fluid Level, Suzuki Engine interface, EP-25 Speed, EP-35 Temp, EP-45 Pressure sensors and EP-50 Storage device. And what's more exciting, there are others on the way. Be sure to log on to our website, www.lowrance.com, from time to time for the latest developments, including updated operation manuals, instruction sheets and software you can download free of charge. When you are ready to expand your network, see the accessory ordering information on the back cover of this manual. NOTICE! The storage and operation temperature range for your unit is from -4 degrees to +167 degrees Fahrenheit (-20 degrees to +75 degrees Celsius). Extended storage or operation in temperatures higher or lower than specified will damage the liquid crystal display in your unit. This type of damage is not covered by the warranty. For more information, contact the factory's Customer Service Department; phone numbers are inside the manual's back cover.

Section 2: Installation

Preparation
The design of the LMF-400 allows convenient mounting in the dash of your boat, or it can be mounted on any flat panel at least four inches in diameter. To mount the LMF-400 in the dash, first make sure there is sufficient clearance behind the panel in the desired location. At least 3-1/2 inches are needed behind the surface of the dash to clear all connectors and wiring. Recommended Tools and supplies Recommended tools for this job include: hole saw, 3/38" (86 mm) hole saw bit, drill, 1/8" (3 mm) drill bit (for starter hole). Required supplies for this job include: "U" bracket, lock washers and wing nuts (included). Installation Sequence You can install this gauge in some other order if you prefer, but we recommend the installation sequence listed below. 1. Determine the location for the gauge so you can plan how and where to route the cables. This will help you make sure you have enough cable length for the desired configuration. 2. Determine the location of the nearest device on the boat's NMEA 2000 network, along with the route of the gauge's network cable. 3. Determine the location for the alarm buzzer and its wire route. 4. If you want the gauge's backlight to turn on when the dashboard lights are turned on, locate your boat's dash light switch and determine how to route the gauge's dash light wires to it. 5. Install the gauge in a standard 3-3/8 inch (86 mm) hole in the dash. If no 3-3/8 hole available in the dash, you will have to drill a 1/8" pilot hole, then use a hole saw to cut a mounting hole. See instructions for Mounting the Unit below. 6. Connect the buzzer wires and install the buzzer. If desired, connect the dash light wires to the boat's dash light switch. 7. Connect the network cable to the NMEA 2000 network.

Section 3: Operation

The displays and settings in this digital gauge are controlled by a fivebutton keypad. The buttons are UP, DOWN, MENU, ENTER and EXIT. The MENU key gives you access to the basic menu. The UP and DOWN keys are used to scroll through and highlight menu items. The PAGES/ENTER key (also referred to as the ENTER key) allows you to scroll forward through pages, execute commands and select items from menus. The EXIT key is used to close menus and scroll backward through pages.

LMF-400 keypad.

Boat Setup
When the LMF-400 is turned on the first time, the Boat Setup menu will appear. You will not be able to proceed without completing Boat Setup. If, however, you have one or more of the following devices Suzuki Engine Interface, EP-10 Fuel Flow, EP-15 Fluid Level, EP-45 Pressure Sensor or an EP-50 Storage Device already configured in the network with the same engine-tank configuration, you WILL NOT have to go through boat setup when adding a new gauge to the network. After adding the gauge to the network, the Boat Setup menu will be cleared from the screen and the unit will begin normal operation in 1-2 seconds. NOTE: If you add an EP-10 Fuel Flow, EP-15 Fluid Level, EP-45 Water Pressure or EP-50 Storage Device sensor to the network, you must go through Boat Setup so the engine-tank configuration will be consistent among sensors on the network. To execute Boat Setup: 1. With Boat Setup highlighted on the screen, press ENTER. A menu will appear, allowing you to choose the number of engines and fuel tanks on your vessel. The Boat Setup menu options are: 1 Eng/1 Tank, 1 Eng/2 Tank, 2 Eng/1 Tank, 2 Eng/2 Tanks, 3 Eng/1 Tank or 3 Eng/3 Tanks. 9
2. Use the UP and DOWN keys to select the engine-tank configuration that applies to your vessel and press ENTER. After setting the engine/tank configuration, the Tank Size menu will appear with up to three options (Port Tank, Center Tank and Starboard Tank), depending on the engine tank configuration you chose. (If you selected one tank during Boat Setup, you will be taken directly to the Setting Tank Size Window in Step 4.) 3. Select the desired tank and press ENTER, which will open the Setting Tank Size window. 4. Use the UP and DOWN keys to input the number of gallons the tank will hold and press ENTER. Press EXIT and repeat steps 3 and 4 for each of the remaining tanks. 5. After all tanks on your vessel have been set up, press EXIT repeatedly to get back to the main display. NOTE: If you chose the wrong engine-tank configuration during Boat Setup, you will have to reset your engine-tank configuration to get back to Boat Setup. To reset engine-tank configuration, see enginetank configuration instructions on page 21.

Basic Menu

The LMF-400 has 13 page screens that can be customized with the data of your choosing. Each page has its own basic menu. Basic menus vary from page to page, but all contain these standard menu options: Pages, Screen, Audio Setup and System Setup. Pages that can be customized also include Customize on the basic menu.
Your unit can display up to 16 page screens. You could, for example, add 12 different pages then add some pages more than once, customizing them differently each time.
Viewing Pages (Page Screen Rotation)
The Page Screen Rotation consists of multiple pages that have been set up for display. Once pages have been added to the page screen rotation, they can be set to scroll across the screen automatically or manually. Use the ENTER and EXIT keys to manually scroll pages across the screen. Pressing the ENTER key moves the scroll in one direction. Pushing the EXIT key moves the scroll in the other direction. You will use the Page Scrolling feature to set up pages for automatic scrolling. See page 14 for more information about Page Scrolling.

Page Options

The LMF-400 has 12 different pages that may be added to the page screen rotation. They are: Engine Trim, Diagnostics, Fuel Manager, GPS Position, Single Analog, Dual Analog, Quad Analog, Single Digital, Dual Digital, Quad Digital, Synchronizer, Trim Tabs and Rudder.
Engine Trim (from left to right), Diagnostics, Fuel Manager and GPS Module page.
Engine Trim The Engine Trim page displays engine position data as an analog slider bar and as a percentage. It cannot be customized. Diagnostics The Engine Diagnostic page displays engine performance data. It cannot be customized. Fuel Manager The Fuel Manager page has a digital readout capable of displaying nine data types, including fuel flow, fuel used and fuel remaining. GPS Position The GPS position page displays the boats position in LatitudeLongitude, using Degrees-Minutes or Degrees-Minutes-Seconds as the units of measure.
Single Analog (from left to right), Dual Analog, Quad Analog and Single Digital page.
Rudder The Rudder Page displays the rudder position as an analog gauge and in degrees. It cannot be customized.
Single Analog The Single Analog page consists of a single analog gauge that can be customized to display a wide assortment of data, ranging from Alternator Voltage and Water Speed to Battery Voltage and Tachometer. Dual Analog The Dual Analog page features two analog gauges stacked one on top of the other. Both gauges can be customized to display a wide assortment of data including, Atmospheric Pressure, Engine Boost Pressure, Fuel Pressure and Fluid Level. Quad Analog The Quad Analog page is divided equally into four parts, each containing a small analog gauge. All four gauges can be customized to display a wide range of data, from Pitot Speed and Engine Temperature to Oil Pressure and Transmission Oil Pressure. Single Digital The Single Digital page consists of a digital data box that can be customized to display a wide assortment of data that includes Battery Voltage, Water Speed and Tachometer.

Contrast is highlighted on the Screen menu (left). The Contrast Adjust window (center). Reverse Video highlighted on Screen menu (right).
Reverse Video The Reverse Video function swaps the position of dark and light colors on the screen. The dark text, which is on top of a light background, will be switched to light text on top of a dark background. This feature, typically, is used to darken the display for nighttime use. NOTE: The Reverse Video command is transmitted over the network, so all gauges will be synchronized to the same Reverse Video setting. To turn on Reverse Video: 1. Press MENU, use the UP and DOWN keys to select SCREEN, and press ENTER. 2. Highlight REVERSE VIDEO and press ENTER. You will notice the dark and light colors have been swapped for one another. 3. To switch Reverse Video to its previous setting, return to the Screen menu, select REVERSE VIDEO and press ENTER. 4. Press EXIT|EXIT to return to the main display.
Audio Setup highlighted on the basic menu (left). Audio Setup menu (center) with Key Sounds menu (right).

Audio Setup

Audio Setup gives you access to the unit's audio functions. There are two options on the Audio Setup menu: Key Sounds and Alarm Sounds. Key Sounds When Key Sounds are turned on, a tone will sound every time you push the UP, DOWN, MENU, ENTER and EXIT keys. When you turn off Key Sounds, no tone will sound when you depress the keys. To turn Key Sounds on/off: 1. Press MENU, use the UP and DOWN keys to select AUDIO SETUP, and press ENTER. A menu will appear with two options: Key Sounds and Alarm Sound. 2. Select KEY SOUNDS and press ENTER. The Key Sounds menu will appear with two options: On and Off. 18
3. Highlight ON to turn Key Sounds on or OFF to turn Key Sounds off. Press ENTER. You will be taken back to the main display. Alarm Sound When an alarm is set and Alarm Sound is turned on, you will hear a tone and see a pop-up window when an alarm is triggered. With an alarm set and Alarm Sound turned off, you will see a pop-up window, but no tone will sound. To turn Alarm Sound on/off: 1. Press MENU, use the UP and DOWN keys to select AUDIO SETUP and press ENTER. A menu will appear with two options: Key Sounds and Alarm Sound. 2. Highlight ALARM SOUNDS and press ENTER. The Alarm Sound will appear with two options: On and Off. 3. Select ON to turn on Alarm Sound or select OFF to turn off Alarm Sound. Press ENTER. You will be taken back to the main display.

4. Select SET DEPTH and press ENTER to open the Set Depth menu. (Choose OFF to turn off the Shallow Alarm). 5. Use the UP and DOWN keys to set the alarm to the desired depth and press ENTER. Press EXIT to return to the Sonar Alarms menu. To set the Deep Alarm: The deep alarm will sound when your vessel enters water deeper than the selected deep alarm threshold. 1. Press MENU, use the UP and DOWN keys to select SYSTEM SETUP and press ENTER. 2. Highlight Sonar Alarms and press ENTER to open the Sonar Alarms menu with two options: Shallow and Deep. 3. Select DEEP and press ENTER. The Shallow menu will appear with two options: Off and Set Depth. 4. Select SET DEPTH and press ENTER. (Choose OFF to turn off the Deep Alarm). 5. Use the UP and DOWN keys to set the alarm to the desired depth, then press EXIT repeatedly to get back to the main display.
Sonar Alarms highlighted on System Setup menu (left). Sonar Alarms menu (center); Reset Values selected on System Setup menu (right).
Engine/Tank Configuration The Engine/Tank configuration menu displays the number of engines and fuel tanks on the vessel as well as fuel tank capacity. You selected your engine-tank configuration during Boat Setup. If the selected configuration is incorrect, you can return to Boat Setup by resetting the configuration from the Engine/Tank Configuration menu. To reset Eng/Tank configuration: 1. Press MENU, use the UP and DOWN keys to highlight SYSTEM SETUP and press ENTER. 2. Select ENG/TANK CFG and press ENTER. The Engine Tank information screen appears with the following message at the bottom of the page: Press Enter to reset Cfg (configuration). 21
3. Press ENTER and the following message will appear: Press Enter to reset Eng/Tank Cfg. 4. Press ENTER, which will open the Boat Setup menu. Press ENTER, then use the UP and DOWN keys to select an engine-tank configuration that matches the number of engines and tanks on your vessel. The Boat Setup menu options are: 1 Eng/1 Tank, 1 Eng/2 Tank, 2 Eng/1 Tank, 2 Eng/2 Tanks, 3 Eng/1 Tank or 3 Eng/3 Tanks. 5. Select the desired option and press ENTER, which will open the Tank Size menu. The Tank Size men will have up to three options (Port Tank, Cen Tank, Stbd Tank), depending on the engine tank configuration you selected during Boat Setup. (If you selected one tank during Boat Setup, you will not see any of these options. You will be taken directly to the Setting Tank Size Window.) 6. Select a tank and press ENTER to open the Setting Tank Size window. 7. Use the UP and DOWN keys to enter how many gallons the tank will hold and press ENTER. Repeat steps 6 and 7 for each remaining tank. NOTE: If you have one tank, press ENTER after you have input the capacity of the tank. Press EXIT repeatedly to get back to the main display. 8. After all tanks have been setup, press EXIT repeatedly to return to the main display. Reset Values: The Reset command allows you to reset all values back to factory default settings. To reset values: 1. Press MENU, use the UP and DOWN keys to select SYSTEM SETUP and press ENTER. 2. Select RESET VALUES and press ENTER. The following message will appear: Press Enter to Reset All Values. 3. Press ENTER to reset values. You will be taken back to the main display. WARNING: Resetting values is a hard reset. All LMF-400 settings will be set back to factory defaults. Resetting values, however, does not affect engine/tank configuration or the calibration and configuration settings of devices on the bus.

6. Press EXIT|EXIT to get back to the Quad Analog page, where the data you selected will be displayed. NOTE: If a page is customized to show information from a device that is working improperly or is not connected to the NMEA 2000 network, the data boxes on the gauge will flash. This indicates the device is not sending data to the network. This could occur for a variety of reasons, depending on the device type.
Quad Analog page (left) with Single Digital page (right).
Single Digital The single digital page can display these data types: Alternator Voltage, Battery Voltage, Engine Temperature, Engine Water Pressure, Engine Oil Pressure, Fuel Pressure, Engine Boost Pressure, Transmission Oil Pressure, Atmospheric Pressure, Temperature, Depth, Engine Load, Total Engine Hours, Fuel Flow, Fuel Economy, Fuel Remaining, Fuel Used, Fuel Range, Trip Fuel Use, Seasonal Fuel, Water Speed (Paddle Wheel Speed), Ground Speed (GPS) and Tachometer. To customize Single Digital page: 1. Make sure the Single Digital page has been added to the page screen rotation. 2. Use the ENTER and EXIT keys to scroll the Single Digital page onto the main display. 3. Press MENU, select CUSTOMIZE and press ENTER. The data menu will appear. 4. Highlight the data you want to display and press ENTER. You will be taken back to the main display where the single digital page will be displayed with the data you selected. Dual Digital The Dual Digital page has two digital data boxes stacked one on top of the other. The digital data boxes can display: Alternator Voltage, 32
Battery Voltage, Engine Temperature, Engine Water Pressure, Engine Oil Pressure, Fuel Pressure, Engine Boost Pressure, Transmission Oil Pressure, Atmospheric Pressure, Temperature, Depth, Engine Load, Total Engine Hours, Fuel Flow, Fuel Economy, Fuel Remaining, Fuel Used, Fuel Range, Trip Fuel Use, Seasonal Fuel, Water Speed (Paddle Wheel Speed), Ground Speed (GPS) and Tachometer. To customize the Dual Digital page: 1. Make sure the Dual Digital page has been added to the page screen rotation. 2. Use the ENTER and EXIT keys to scroll the Dual Digital page onto the main display. 3. Press MENU, select CUSTOMIZE and press ENTER. A menu will appear with two options: Top Data and Bottom Data. 4. Highlight the desired option and press ENTER. The data menu will appear. 5. Select the data you want to display and press ENTER. One of two things will happen, depending on the data category you selected. 1. If you chose Atmospheric Pressure, Temperature, Depth, Water Speed or Ground Speed, you will be taken back to the Top DataBottom Data menu. Repeat Steps 4-5 for the other data box. 2. If you selected Alternator Voltage, Battery Voltage, Engine Temp, Engine Water Pressure, Engine Oil Pressure, Fuel Pressure, Engine Boost Pressure, Transmission Oil Pressure, Engine Load, Total Engine Hours, Fuel Flow, Fuel Economy, Fuel Remaining, Fuel Used, Fuel Range, Trip Fuel Used, Seasonal Fuel or Tachometer, you will be taken to the Select Engine menu where there will be up to three options: Port, Center and Starboard. The data category you selected will retrieve data from the engine you choose. Select the desired engine and press ENTER. You will be taken back to the Top Data-Bottom Data menu. Highlight the other data box and repeat steps 4-5. 6. When both digital data boxes are customized, press EXIT|EXIT to return to the main display, where the dual digital page will be shown with the data you chose.

To unconfigure an EP-35 temp sensor: 1. Press MENU, use the UP and DOWN keys to select SYSTEM SETUP and press ENTER. 2. Highlight BUS DEVICES and press ENTER. The Bus Devices list will appear, showing all devices detected on the network. 3. Choose the temp sensor you want to unconfigure and press ENTER. Select UNCONFIGURE from the temp configuration menu and press ENTER. The following message will appear: Press Menu to UnConfig Device Name. 4. Press ENTER to unconfigure the sensor and be directed back to the Bus Devices list where the temp now will be listed as UnCfg Temp. To reconfigure an EP-35 temp sensor: To reconfigure a sensor, there must be a configuration name available (Water, Outside or Inside). If all three temp sensors have been configured, you first will have to unconfigure a temp sensor to make its name available for reconfiguration. If you try to reconfigure a sensor when the desired configuration name (Water, Outside and Inside) is in use, a Name Already Selected message will appear. If all three temps are configured, which means there is no name configuration available, follow the first set of instructions. If the desired configuration name is available, follow the second set of instructions. The steps below will show you how to switch the configuration of a water temp to an outside temp. If all temps configured (Configuration name unavailable): 1. Press MENU, use the UP and DOWN keys to select SYSTEM SETUP and press ENTER. 2. Highlight BUS DEVICES and press ENTER. Select OUT: T (Outside Temp) and press ENTER to open the temp configuration menu. 3. Select UNCONFIGURE and press ENTER. The following message will pop up: Press Enter to UnConfig Device Name. 4. Press ENTER to unconfigure the sensor and be taken back to the Bus Devices list. The Outside temp is now unconfigured and will be displayed as UnCfg Temp. Its configuration name (Outside) is now available, so you will be able to use it to reconfigure the Water temp sensor. 5. Highlight WTR: T and press ENTER, which will open the temp configuration menu. Select RECONFIGURE and press ENTER. That will direct you to the Temp Selection menu, which will have three options: Water, Outside and Inside.
6. Select OUTSIDE and press ENTER. You will be taken back to the Bus Devices list. The temp you just reconfigured (formerly water temp) will now be displayed as Out: T. 7. To configure the unconfigured Temp (formerly Outside temp), highlight UNCFG TEMP from the Bus Devices list and press ENTER to open the Temp Selection menu, which will have three options: Water, Outside and Inside. Highlight WATER and press ENTER. You will be taken back to the Bus Devices list, where the temp you just configured will be displayed as WTR: T. If desired configuration name available: 1. Press MENU, use the UP and DOWN keys to select SYSTEM SETUP and press ENTER. 2. Highlight BUS DEVICES and press ENTER. Select WTR: T and press ENTER to open the configuration options menu. 3. Select RECONFIGURE and press ENTER to open the Temp Selection menu, which will have three options: Water, Outside and Inside. 4. Highlight OUTSIDE and press ENTER. You will be taken back to the Bus Devices list where the temp will now be shown as Out T.

To configure EP-15 Fluid Level for Fuel:
1. Make sure the Fuel Remaining Source has been set to Fluid Level. Press MENU, use the UP and DOWN keys to select SYSTEM SETUP and press ENTER. 2. Highlight BUS DEVICES and press ENTER to bring up the Bus Devices list. 3. Select UNFCG F LEV and press ENTER. The following message will appear: Press Enter to configure Fluid Lev Snsr. 4. Press ENTER and the Fluid Level configuration menu will appear. 5. Choose FUEL and press ENTER, which will open the Select Tank menu with up to three options: Port Tank, Center Tank and Starboard Tank. The number of tank options depends on the engine-tank configuration you chose during Boat Setup. 6. Select the tank connected to the fluid level you are configuring and press ENTER. You will be taken back to the Bus Devices list, where the tank will be displayed as Fuel Tank (P), Fuel Tank (C) or Fuel Tank (S). Press EXIT repeatedly to return to the main display. 43
To configure EP-15 for Fresh Water:
1. Press MENU, use the UP and DOWN keys to select SYSTEM SETUP and press ENTER. 2. Highlight BUS DEVICES and press ENTER. The Bus Devices list will appear. 3. Select UNFCG F LEV and press ENTER. The following message will appear: Press Enter to configure Fluid Lev Snsr. Press ENTER and the Fluid Level configuration menu will appear. 4. Choose FRESH WATER and press ENTER. The Tank Number window will appear. 5. Use the UP and DOWN keys to input the number you want to assign the tank and press ENTER. The Setting Tank Size window will appear on the screen. 6. Use the UP and DOWN keys to input the size of the tank and press ENTER. You will be taken back to the Bus Devices list, where the tank will be displayed as FrshWtr Tnk (1, 2 or 3).
To configure EP-15 for Waste Water (Gray Water): 1. Press MENU, use the UP and DOWN keys to select SYSTEM SETUP and press ENTER.
2. Highlight BUS DEVICES and press ENTER. The Bus Devices list will appear. 3. Select UNFCG F LEV and press ENTER. The following message will appear: Press Enter to configure Fluid Lev Snsr. Press ENTER and the Fluid Level configuration menu will appear. 4. Choose WASTE WATER and press ENTER. The Tank Number window will appear. 5. Use the UP and DOWN keys to input the number you want to assign the tank and press ENTER. The Setting Tank Size window will appear on the screen. 6. Use the UP and DOWN keys to input the size of the tank and press ENTER. You will be taken back to the Bus Devices list, where the tank will be displayed as WstWtr Tnk (1, 2 or 3). Press EXIT repeatedly to get back to the main display.
To configure EP-15 for Live Well: 1. Press MENU, use the UP and DOWN keys to select SYSTEM SETUP and press ENTER.
2. Highlight BUS DEVICES and press ENTER. The Bus Devices list will appear.
3. Select UNFCG F LEV and press ENTER. The following message will appear: Press Enter to configure Fluid Lev Snsr. Press ENTER and the Fluid Level configuration menu will appear. 4. Choose LIVE WELL and press ENTER. The Tank Number window will appear. 5. Use the UP and DOWN keys to input the number you want to assign the tank and press ENTER. The Setting Tank Size window will appear on the screen. 6. Use the UP and DOWN keys to input the size of the tank and press ENTER. You will be taken back to the Bus Devices list, where the tank will be displayed as LWell Tnk (1, 2 or 3).

To configure EP-15 for Oil: 1. Press MENU, use the UP and DOWN keys to select SYSTEM SETUP and press ENTER.
2. Highlight BUS DEVICES and press ENTER. The Bus Devices list will appear. 3. Select UNFCG F LEV and press ENTER. The following message will appear: Press Enter to configure Fluid Lev Snsr. 4. Press ENTER and the Fluid Level configuration menu will appear. 5. Choose OIL and press ENTER, which will open the Select Tank menu with up to three options: Port Tank, Cen Tank and Stbd Tank. The number of tank options depends on the number of tanks you chose during Boat Setup. 6. Select the desired tank and press ENTER. 7. The Tank Size window will appear. Use the UP and DOWN keys to input the size of the tank and press ENTER. You will be taken back to the Bus Devices list, where the tank will be displayed as Oil Tank (P), Oil Tank (C) or Oil Tank (S).
To configure EP-15 for Black Water:
1. Press MENU, use the UP and DOWN keys to select SYSTEM SETUP and press ENTER. 2. Highlight BUS DEVICES and press ENTER. The Bus Devices list will appear. 3. Select UNFCG F LEV and press ENTER. The following message will appear: Press Enter to configure Fluid Lev Snsr. Press ENTER and the Fluid Level configuration menu will appear. 4. Choose BLACK WATER and press ENTER. The Tank Number window will appear.
5. Use the UP and DOWN keys to input the number you want to assign to the tank and press ENTER. The Setting Tank Size window will appear on the screen. 6. Use the UP and DOWN keys to input the size of the tank and press ENTER. You will be taken back to the Bus Devices list, where the tank will be displayed as BlkWtr Tnk (1, 2 or 3). To unconfigure Fluid Level: 1. Press MENU, use the UP and DOWN keys to select SYSTEM SETUP and press ENTER. 2. Highlight BUS DEVICES and press ENTER, which will open the Bus Devices list. 3. Choose a configured Fluid Level from the Bus Devices list and press ENTER. The Fluid Level will appear with the following options: Level Warning, Unconfigure, Reconfigure, Calibrate, Reset Cal and Reset Values. 3. Highlight UNCONFIGURE and press ENTER, which will launch the following message: Press Enter to Unconfig Device name. 4. Press ENTER and you will be taken back to the Bus Devices list where the fluid level you unconfigured will be displayed as UnCfg F Level. To reconfigure Fluid Level: 1. Press MENU, use the UP and DOWN keys to select SYSTEM SETUP and press ENTER. 2. Highlight BUS DEVICES and press ENTER. The Bus Devices list will appear. 3. Select the Fluid Level you want to configure and press ENTER. 4. The Fluid Level menu will appear with the following options: Level Warning, Unconfigure, Reconfigure, Calibrate, Reset Cal and Reset Values. 5. Choose RECONFIGURE and press ENTER. Use the UP and DOWN keys to input the tank number you want to assign the fluid level and press ENTER. The Setting Tank Size window will appear on the screen. 6. Use the UP and DOWN keys to input the size of the tank and press ENTER. You will be taken back to the Bus Devices list, where the fluid level will be displayed with its new configuration. Level Warning A Level Warning alerts you when the fluid level rises above or falls below a preset percentage of tank capacity. The Level Warning menu has two options: Low Level and High Level. A low level warning is used for fluid types like fuel, oil and freshwater, whereas a high level warning is best suited for black water and Waste Water (Gray Water). 46

Suzuki Engine Interface Configuration
You can have up to three Suzuki Engine Interface's installed on your vessel, one for each engine the LMF-400 supports. In a three enginetank configuration, the interfaces will be listed as Port Engine, Center Engine and Stbd Engine. If the engine interface is unconfigured, it will be listed as Uncfg Eng Int. When accessing an Engine Interface, its menu will appear with the following options: Change Engine (for two or more engines only), Fuel Warning, Unset Engine, Reset Values, Reset Fuel Calibration and Reset Trim Calibration. NOTE: If, after configuring, unconfiguring or reconfiguring an engine interface, it is not shown on the Bus Devices list, you will have to refresh the list. Press MENU, select SYSTEM SETUP and press ENTER. Highlight BUS DEVICES and press ENTER. The Fuel Flow will be listed with its new configuration setting. To configure a Suzuki Engine Interface: 1. Press MENU, use the UP and DOWN keys to select SYSTEM SETUP and press ENTER. 2. Highlight BUS DEVICES and press ENTER. The Bus Devices list will appear. 3. Select UNCFG ENG INT and press ENTER. The following message will appear: Press Enter to Configure Eng Intrfc. 4. Press ENTER. The following list of Suzuki engine models will appear: DF40, DF50, DF60, DF70, DF90/115, DF140, DF150, DF175, DF200/225, DF250 and DF300. 5. Select your engine model from the list and press ENTER. The Select Engine menu will appear with up to three options (Port, Center and Starboard), depending on your engine-tank configuration. If you chose a single engine configuration during Boat Setup, you will be taken back to the main display. 6. Highlight the engine connected to your engine interface and press ENTER. If, for example, you select the Port, the following message will appear: Press ENTER to change to Port Engine. 7. Press ENTER. You will be taken back to the main display.
To unconfigure a Suzuki Engine Interface: The unconfigure command (Unset Engine) allows you to set a Suzuki Engine Interface back to its original unconfigured status. Unconfiguring an interface also will allow you to change the engine model selected during configuration.
Unset Engine 1. Press MENU, use the UP and DOWN keys to select SYSTEM SETUP and press ENTER. 2. Highlight BUS DEVICES and press ENTER to open the Bus Devices list. 3. Select the desired engine interface and press ENTER. The Engine Interface menu will appear. Select UNSET ENGINE and press ENTER. The

following message will appear: Press Enter to UnConfig Device Name. 4. Press ENTER and you will be directed back to the Bus Devices list., where the engine interface you unconfigured will be shown as UnCfg Intrfc. NOTE: If, after configuring, unconfiguring or reconfiguring an engine interface, it is not shown on the Bus Devices list, you will have to refresh the list. Press MENU, select SYSTEM SETUP and press ENTER. Highlight BUS DEVICES and press ENTER. The Fuel Flow will be listed with its new configuration setting. To reconfigure Suzuki Engine Interface (multiple engines only): The Change Engine command is used to switch the current configuration of a Suzuki Engine Interface with the configuration from a different engine. Change Engine, however, will only appear on your LMF-400 menu if you are using an engine-tank configuration that includes multiple engines. If all engine interfaces on your vessel are configured, you will have to unconfigure an interface to free up its configuration name (Port, Center, Starboard). If all three engine interfaces are configured, leaving no name configuration available, follow the first set of instructions below. If the desired configuration name is available, follow the second set of instructions below.
The steps below show how to switch the configuration name of an engine interface from the port engine to the starboard engine. When all engine interfaces are configured (Configuration name unavailable): 1. Press MENU, use the UP and DOWN keys to select SYSTEM SETUP and press ENTER. 49
2. Highlight BUS DEVICES and press ENTER. The Bus Devices list will appear. 3. Select PORT ENGINE and press ENTER. Highlight UNSET ENGINE and press ENTER. The following message will appear: Press Enter to UnConfig Device Name. 4. Press ENTER. You will be taken back to the Bus Devices list, where the interface will now be displayed as UnCfg Intrfc. 5. Select Starboard Engine and press ENTER. 6. Highlight CHANGE ENGINE and press ENTER. The Select Engine menu will appear with up to three options (Port, Center and Starboard), depending on your engine-tank configuration. 7. Select PORT and press ENTER. You will be taken back to the Bus Devices list. 8. Highlight UnCfg Intrfc and press ENTER. The following message will appear: Press Enter to Configure Eng Intrfc. 9. Press ENTER, which will open the Suzuki Engine Model menu. Select the model of Suzuki engine on your vessel and press ENTER. The Select Engine menu will appear with up to three options (Port Center and Starboard). 10. Choose Starboard and press ENTER. You will be taken back to the Bus Devices list where the engine interfaces will be shown with their new configuration names. If desired configuration name available: 1. Press MENU, use the UP and DOWN keys to select SYSTEM SETUP and press ENTER. 2. Highlight BUS DEVICES and press ENTER. The Bus Devices list will appear. 3. Select the engine interface you want to reconfigure and press ENTER. Highlight CHANGE ENGINE and press ENTER. The Select Engine menu will appear with up to three options (Port, Center or Starboard), depending on your engine-tank configuration. 4. Choose the desired configuration name and press ENTER. You will be taken back to the Bus Devices list, where the engine interface you reconfigured will be displayed with its new configuration name.

standard fluid level gauges. If, however, the tank has an irregular shape or greater accuracy is needed, calibration is recommended. The default calibration for the EP-10 Fuel Flow and Suzuki Engine Interface are adequate in most cases, but if Fuel Used readings are off by more than 3 percent, calibration is recommended.
Calibrating EP-10 Fuel Flow
The default calibration for an EP-10 Fuel Flow is adequate in most cases, but if fuel used readings are off by more than 3 percent, calibration is recommended. Fuel Flow Accuracy To check fuel flow accuracy, add the Fuel Manager page or any of the digital gauge pages to the page screen rotation, then customize the selected page with Fuel Used data. To see instructions on how to Add Pages and Customize Pages, refer to the Operation Section. NOTE: Make sure the fuel flow has been set as the Fuel Remaining Source, otherwise, you will not be able to calibrate the fuel flow. See Fuel Remaining Source instructions on page 28. After filling up your tank, take your vessel out on the water and burn at least five gallons of fuel. Be sure you run only ONE engine the engine attached to your fuel flow. Fill up your tank again, noting how much fuel you added to the tank. Compare that number to the Fuel Used figure displayed on the page you customized. If the amount of fuel you added to the tank and the fuel used figure are off by more than 3 percent, we recommend the fuel flow be calibrated. NOTE: You must use the gauge's Refill Tank command when filling your fuel tank to keep the fuel flow updated with correct information on the amount of fuel in the tank. Refill Tank You must use the Refill Tank command every time you fill up and every time you calibrate a fuel flow to make sure the fuel flow reads the tank as full. For more information on the Refill Tank function see page 26. To calibrate an EP-10 Fuel Flow: Add the Fuel Manager page or any of the digital gauge pages to the page screen rotation then customize the selected page with Fuel Used data. To see instructions on how to Add Pages and Customize Pages, refer to the Operation Section. 52
NOTE: When following the steps below, run only ONE engine the engine connected to the fuel flow. That is the only way to accurately calculate how much fuel passed through the fuel flow. Also, make sure the fuel remaining source has been set to Eng/FFlow. 1. Fill up the tank you want to calibrate. 2. Press MENU, use the UP and DOWN keys to select SYSTEM SETUP and press ENTER. 3. Highlight FUEL SETUP and press ENTER. 3. Select REFILL TANK and press ENTER. The Select Tank menu will open with up to three options: Port, Center and Starboard. 4. Select the tank you refilled and press ENTER. The following message will appear: Press Enter after refilling the fuel tank. 5. Press ENTER and a calibration window will appear with two options: Yes and No. Select NO and press ENTER. 6. Take your boat out, but run only ONE engine the engine connected to the fuel flow. Burn at least 5 gallons of fuel, then fill up the tank again, noting how much fuel was added to the tank. Check the Fuel Manager page for the fuel used figure calculated by the LMF-400. 7. Compare the amount of fuel added when you filled up the tank with the LMF-400 Fuel Used figure. If the difference between these two numbers is greater than 3 percent, you need to recalibrate the unit. NOTE: If the difference between the LMF-400 fuel used figure and the amount of fuel you actually added to the tank is less than 3 percent, do not recalibrate the EP-10 Fuel Flow. 8. Fill up the fuel tank connected to the fuel flow you want to calibrate. 9. Press MENU, use the UP and DOWN keys to select SYSTEM SETUP and press ENTER. 10. Highlight FUEL MANAGER and press ENTER. 11. Select REFILL TANK and press ENTER. The Select Tank menu will open with three options: Port, Center and Starboard. Select the tank you refilled and press ENTER. 12. The Recalibration menu will appear with two options: Yes and No. Select YES and press ENTER. 13. The Filled Quantity window will appear. Use the UP and DOWN keys to input the amount of fuel you added to the tank and press ENTER. 14. Repeat these steps for each fuel flow you want to calibrate. 53