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LMS-350A
INSTALLATION AND OPERATION
INSTRUCTIONS
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IMPORTANT! YOU MUST HAVE THE OPTIONAL LGC-1 GPS MODULE ATTACHED TO THE LMS-350A TO USE THE POSITION AND NAVIGATION FEA- TURES ON THIS PRODUCT. WARNING! USE THIS PRODUCT ONLY AS AN AID TO NAVIGATION. A CAREFUL NAVIGATOR NEVER RELIES ON ONLY ONE METHOD TO OBTAIN POSITION INFORMATION. CAUTION The LGC-1 GPS receiver, (like all GPS navigation equipment) will show the shortest, most direct path to a waypoint. It provides navigation data to the waypoint regardless of obstructions. Therefore, the pruden
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SONAR TABLE OF CONTENTS INTRODUCTION ............................................................................................................................ 1 MOUNTING .................................................................................................................................... 1 POWER CONNECTIONS ...............................................................................................................3 TRANSDUCER CONNECTIONS ......................................
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INTRODUCTION The LMS-350A is a high quality, wide screen sonar with performance that is second to none in its class. Using menu features and “soft-key” operation, the LMS-350A is also one of the easiest-to-use sonars that Lowrance has ever built. The wide “ClearVision” screen shows the underwater world with high resolution and detail. The display and keyboard are also lighted for night operation. The LMS-350A also has digital depth, boat speed, surface water temperature, and distance travelled (
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IN-DASH MOUNTING The LMS-350A can be installed in the dash with the supplied hardware if the dash is 1/2" thick or less. Determining the dash thickness can be difficult, however, if you remove a gauge from the dash, you can easilly measure the thickness. Try this in an area that's close to the location that you wish to install the unit, since the thickness can vary significantly in some boats. Make certain there is clearance behind the dash for the unit and there is enough room to tighten the bo
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POWER CONNECTIONS The LMS-350A works from a twelve-volt battery system. For the best results, attach the power cable directly to the battery. You can attach the power cable to an accessory or power buss, however you may have problems with electrical interference. Therefore, it’s safer to go ahead and attach the power cable directly to the battery. If the cable is too short, splice #18 gauge wire onto it. The power cable has four wires; red, black, green, and white. Red is the positive lead, blac
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The white wire is for a NMEA interface. The LMS-350A sends data to another electronic navigation devices through the white wire. It receives data from a differential (DGPS) beacon receiver through the green wire. If the white and green wires are not used, tape their ends so that they cannot short. To connect a device to the LMS-350's NMEA output (white wire), attach a shielded, twisted pair cable from the device's NMEA intput to the white wire on the LMS-350's power cable. Solder the ground c
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OPTIONAL GPS MODULE INSTALLATION The GPS module can be installed on a flat surface or (with the supplied adapter) on a pole. Mount the module in an area that guarantees a clear view of the sky at all times. In order for the module to receive the signals from the satellites, it must not be obstructed. An ideal location is on a cabin roof, or deck. The gunnels also make a good location. Attaching the pole mounting adapter lets you install the module on a one inch mast. However, for lightning
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Surface Mounting - Without Access If you don't have access to the back side of the mounting surface, use the "cleats" supplied with the LMS-350A. (Note: This is assuming you can "snake" the module's cable to a location that is accessable. A hole will still need to be drilled in the mounting surface for the cable.) Using the gasket as a template, mark and drill the 17 mm (11/16") hole for the cable. Attach the cable to the module and drop the other end of the cable through the gasket and down
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Pole Mount First, thread the pole mounting adapter onto the mounting pole or ratchet base. Align the pole mounting adapter so the module will face the bow of the boat. Install and tighten the set screw into the pole mounting adapter and tighten it securely. This should prevent the GPS module from unscrewing from the pole. Place the gasket onto the pole mounting adapter. Now attach the cable to the GPS module and pass the cable through the gasket, pole mounting adapter, and pole. Set the GP
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LMS-350A LOWRANCE 123 SENS 456 RANGE 789 ZOOM CLR ENT 0 AUTO WAYPT WAYPT MENU EVENT MAN MARKER OVERBOARD OFF ON SONAR GPS PLOTTER WINDOWS KEYBOARD The keyboard has keys arranged in a vertical column on the left plus a horizontal row at the bottom. A ten-key pad and arrow keys on the right side of the screen lets you enter and change data on the screen. The keys in the left column are used for sonar and menu selections. The menu key in the bottom left corner of the keyboard activates the
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WAYPT QUICK SAVE - Pressing this key instantly saves your position. MENU - Press this key to show the menus and gain access to most functions. CLR - This key clears menus and erases entries from the screen. ENT - This key is used to enter numbers and make selections. ARROW KEYS - These keys are used to make menu selections and to move objects on the screen. ON - The ON key turns the LMS-350A on. OFF - Press and HOLD the Off key to turn the LMS-350A off. DISPLAY - General The lights are turned on
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the upper left corner of the display indicates the automatic feature is on. The digital bottom depth also showsin this box. MENUS The LMS-350A uses menus extensively to guide you through the func- tions and features of the unit. The menu key accesses many of these features, allowing you to customize the unit to your particular needs and water conditions. Although you may have to leave one menu and enter another to reach the desired function, all you have to do is press the key next to the "More
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To use the windows feature, first press the WINDOWS key. A screen similar to the one shown at left appears. The menu on the right side of the screen lets you switch between the “pages” of displays. These are lettered “A” through “V”. Group “A” shows first. Press the down arrow key to move forward through the screens. Press the up arrow key to move backward. For example, press- ing the down arrow key once shows the group “B” screen. To return to the full sonar screen, press the “SONAR” key. Every
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press the CLR key. VIEWING WINDOWS OPTIONS To see all of the available win- dow options, press the WIN- DOWS key, then press the MENU key. Now press the key adjacent to the “MAIN MENU” label. Finally, press the key next to the “VIEW ALL WIN- DOWS” label. The screen at right appears. The first window appears in the upper right corner of the screen. A description of the screen shows in the box at the bottom of the screen. Now press the key adjacent to the “NEXT” label. This changes the displayed w
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next to the “GROUP A” label was pressed. The screen shown at the top of the next page appears. The depth window appears in the upper right corner of the screen. Press the key adjacent to the “NEXT WINDOW” label to move through the windows. If you reach the last window, or if you wish to go backwards through the windows, press the key next to the “PREV WIN- DOW” label. When the desired window is on the screen, press the key next to the “USE WINDOW” label. The screen clears, placing the new window
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SONAR OPERATION AUTOMATIC When the LMS-350A is first turned on, the Automatic fea- ture is enabled. This is indi- cated by the word “AUTO” at the top of the screen. The Auto- matic feature adjusts the sensi- tivity and range so the bottom signal is displayed in the lower half of the screen at all times. To turn Automatic off, first press the AUTO key. A menu ap- pears at the bottom of the screen above the left and right arrows. Press the left arrow key to switch to the manual mode. The letters
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SENSITIVITY The sensitivity key on the LMS-350A controls the ability of the unit to pick up echoes. A low sensitivity level excludes much of the bottom informa- tion, fish signals, and other target information. High sensitivity levels enables you to see this detail, but it can also clutter the screen with many undesired signals. Typically, the best sensitivity level shows a good solid bottom signal with Grayline and some surface clutter. When the LMS-350A is in the Automatic mode, the sensitivit
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RANGE - Automatic When turned on for the first time, the LMS-350A automatically places the bottom signal in the lower half of the screen. This is called Auto Ranging and is part of the automatic function. The range cannot be changed manually while the unit is in automatic. RANGE - Manual The LMS-350A gives you control over the range when it’s in the manual mode. There are two different methods used to change the range. The first way changes only the lower limit by pressing the arrow keys. On the
