Lowrance electronic X-25B manuale d’uso

1 X-25B X-25B X-25B X-25B X-25B INST ALLA TION AND OPERA TION INSTR UCTIONS[...]

2 TABLE OF CONTENTS INTRODUCTION .............................................................................................................. 3 SPECIFICATIONS ............................................................................................................ 3 INSTALLATION .................................................................[...]

3 INTRODUCTION Thank you for purchasing a Lowrance sonar. Your X-25B is a high quality sonar designed for both professional and novice fishermen. These units have an automatic feature that finds and displays the bottom, fish, structure, and more! All you have to do is press the on key. However, if you wish to fine tune the unit, simply press the me[...]

4 INSTALLATION - Bracket You can install the X-25B on the top of a dash or from an overhead with the supplied bracket. It can also be installed in the dash with an optional IDA- 3 or IDA-4 mounting kit. If you use the supplied bracket, you may be interested in the optional GBSA-1 swivel bracket kit. This converts the X- 25B's gimbal bracket to[...]

5 POWER CONNECTIONS The X-25B works from a 12 volt DC system only. For the best results, run the power cable directly to the boat’s battery. Keep the power cable away from other boat wiring, especially the engine’s wires. This will give the best isolation from electrical noise. If the supplied cable is not long enough to reach the battery, spli[...]

6 KEYBOARD BASICS The unit sounds a tone when you press any key. This tells you the unit has accepted a command. ON/CLEAR Use this key to turn the unit on. It also clears menu selections and the menus from the screen. OFF This key turns the unit off. MENU The X-25B has many features that are accessed with this key. To see the first menu, press the [...]

7 In the example shown at the bottom of the previous page, the range is from 0 to 60 feet and the bottom depth is 34.4 feet. NOTE: Turning the X-25B off erases all user settings and it returns to the system defaults. For example, if you turn the lights on, then turn the unit off, the next time you turn the unit on, the lights will be off, since the[...]

8 RANGE You can’t adjust the range when the X-25B is in the automatic mode. It is adjustable when the unit is in the manual mode, however. To do so, first put the unit in the manual mode. Now press the ON/CLEAR key to clear the screen. Then press the menu key until the “RANGE SEL” menu appears as shown be- low. The current range shows at the [...]

9 21 FOOT UPPER LIMIT seconds and the menu will scroll off the screen’s left side. Pressing the ON/ CLR key also clears it. To change the lower limit, again make certain the unit is in the manual mode. Press the MENU key until the "LOWER LIMIT" menu appears. Now press the down arrow key to increase the lower limit or the up arrow key to[...]

10 This is the zoom size menu. Zoom size is the distance between the upper limit and the lower limit. The upper limit shows at the top left corner of the screen. The lower limit is in the bottom left corner. For example, if the upper limit is 40 feet and the lower limit is 70 feet, the zoom window size is 30 feet. The word “TRACK” appears in th[...]

11 menu key until the “MOVE ZOOM” menu appears. This menu lets you move the zoom window up or down in one foot increments by pressing the arrow keys. Thus, you can move the zoom window up towards the surface, down to the bottom, or anywhere in between. The window stays where you put it. It doesn’t track the bottom signal. To turn the zoom fea[...]

12 CLEAR key to clear the display. If you wait a few seconds, it will automatically clear. GRAYLINE ® Grayline lets you distinguish between strong and weak echoes. It “paints” gray on targets that are stronger than a preset level. This shows the difference between a hard or soft bottom, large fish versus smaller ones, or rocks and brush on the[...]

13 words, it displays a small fish symbol when it thinks a target is a small fish, a medium fish symbol on a larger target, etc. The microcomputer is sophisticated, but it can be fooled. It can't distin- guish between fish and other suspended objects such as turtles, sub- merged floats, air bubbles, etc. Individual tree limbs extending outward[...]

14 CHART SPEED The rate echoes scroll across the screen is called the chart speed. It’s adjustable by pressing the menu key until the chart speed menu appears. Chart speed is set to maxi- mum when the X-25B is first turned on. To decrease it, press the down arrow key. Press the up arrow key to increase the speed again. The bar graph in the Chart [...]

15 Digital This is the digital only screen. It shows the digital depth display at the top of the screen in very large numbers. The shallow and deep alarm settings are displayed beneath the digital depth. No chart shows on this screen. ALARMS FISH ALARM The Fish Alarm sounds a tone when a fish symbol appears on the screen. To use the fish alarm, pre[...]

16 sounds. At the same time the alarm sounds, a message box appears on the screen as shown at right. Press the up arrow key to silence the alarm. This will turn the alarm sound off until the shallow alarm is triggered again. To turn the alarm off, press the menu key until the shallow alarm menu appears. Then press the up arrow key until the word ?[...]

17 switch to metric, the up arrow to switch to feet. Displays show in feet when the unit is first turned on. The menu will clear automatically after a few seconds or you can press the ON/CLEAR key to clear the screen. DISPLAY CONTRAST The unit’s display contrast is adjustable to suit different lighting conditions. This will help you see the scree[...]

18 SIMULATOR The X-25B has a simulator built into it that can show a simulated bottom signal with fish. All features of the X-25B work normally when the simulator is in use. You can change the range, zoom, and use the alarms as desired. To use the simulator, press the menu key repeatedly until the SONAR SIM menu ap- pears. Now press the up arrow to[...]

19 A BOAT'S DIRECTION OF TRAVEL A C B B C FISH ARCHES Fish arches are created when the cone of sound passes over a fish. The distance to a fish when the cone first strikes it is shown as "A" below. When the center of the cone strikes the fish, the distance is shorter as shown "B". As the cone leaves the fish, the distance i[...]

20 Large fish will arch, but turn the sensitivity up in deeper water to see the arch. Because of water conditions, such as heavy surface clutter, thermoclines, etc., the sensitivity sometimes cannot be increased enough to get fish arches. One of the best ways to get fish arches is to expand or “zoom” a segment of the water. For example, from 45[...]

21 SURFACE LAYER ABSORBS HEAT FROM THE SUN EPILIMNION THERMOCLINE MOST PRODUCTIVE ZONE FOR FISHING HYPOLIMNION Unit won’t turn on: 1. Check the power cable’s connection at the unit. Also check the wiring. 2. Make certain the power cable is wired properly. The red wire connects to the positive battery terminal, black to negative or ground. 3. Ch[...]

22 Unit freezes, locks up, or operates erratically: 1. Electrical noise from the boat’s motor, trolling motor, or an accessory may be interfering with the sonar unit. Rerouting the power and transducer cables away from other electrical wiring on the boat may help. Route the sonar unit’s power cable directly to the battery instead of through a f[...]

23 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 [...]

24 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 certain to keep the sonar’s wires away from it. You may need to route the sonar unit’s power cable direc[...]

25 LOWRANCE ELECTRONICS FULL ONE-YEAR WARRANTY “We”, “our”, or “us” refers to LOWRANCE ELECTRONICS, INC., the manufacturer of this product. “You” or “your” refers to the first person who purchases this product as a consumer item for personal, family, or household use. We warrant this product against defects or malfunctions in ma[...]

26 NOTE! Lowrance will pay UPS surface shipping charges both to and from the factory for this unit in the event it needs repair. Your unit is insured against loss or shipping damage when you use the enclosed UPS label. Lowrance Electronics and United Parcel Service (UPS) are proud to offer all of our customers free shipping for all units sent to us[...]

27 This UPS shipping offer is good only in the continental United States (excludes Alaska and Hawaii). KEEP THIS LABEL! YOU WILL NEED IT IF YOU EVER NEED TO RETURN YOUR UNIT TO THE FACTORY FOR REPAIR. Accessory Ordering Information To order accessories such as power cables or transducers, please contact: 1) Your local marine dealer. Most quality de[...]

28 TRANSDUCER, BRACKET, AND HARDWARE DISPLAY UNIT GIMBAL BRACKET RUBBER WASHER GIMBAL KNOB RUBBER WASHER GIMBAL KNOB NOTICE! Please check the items in the box against this list. You should have all of the items shown on this page. If you are missing any of the items, please call our special toll-free number: 1-800-324-1353 A RECORDED MESSAGE will r[...]

29 How to Obtain Service (Canadian Customers Only) We back your investment in quality products with quick, expert service and genuine Lowrance replacement parts. If you need service or repairs, contact the Lowrance Factory Customer Service Department at the toll-free number listed below. A technician may be able to solve the problem and save you th[...]

30 LITHO IN U.S.A. 988-0105-51 How to Obtain Service We back your investment in quality products with quick, expert service and genuine Lowrance ® replacement parts. If you're in the United States and you have questions, please contact the Factory Customer Service Depart- ment using our toll-free number listed below. You must send the unit to[...]