Lowrance X125 Operation Instructions Manual Download Page 1

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Pub. 988-0151-171

www.lowrance.com

X125, X126DF, X135, X136DF

Fish-finding & Depth Sounding Sonars

Operation Instructions

Summary of Contents for X125

Page 1: ...Pub 988 0151 171 www lowrance com X125 X126DF X135 X136DF Fish finding Depth Sounding Sonars Operation Instructions...

Page 2: ...nd our policies regulations and special offers at any time We reserve the right to do so without notice All features and specifications subject to change without notice All screens in this manual are...

Page 3: ...ansducer Orientation and Fish Arches 17 Shoot Thru Hull Preparation and Installation 17 Speed Temperature Sensors 20 Sensor Chart 21 Optional Speed Sensor Installation 22 Power Connections 23 Mounting...

Page 4: ...3 Screen Contrast and Brightness 63 Sensitivity Auto Sensitivity 64 To Turn Auto Sensitivity Back on 66 Set Keel Offset 66 Set Language 67 Software Version Information 67 Sonar Chart Mode 68 Sonar Cha...

Page 5: ...concept you re already familiar with we ll show you how and where to skip ahead for the next important topic We ve also made it easy to look up any tips you may need from time to time Here s how The m...

Page 6: ...programmable to viewing pref erence Resolution 480 pixel x 480 pixel resolution 230 400 to tal pixels 16 level grayscale definition Backlighting X136DF and X135 White LED backlit screen and keypad X12...

Page 7: ...l speed sensor NOTICE The storage temperature range for your unit is from 4 degrees to 167 degrees Fahrenheit 20 degrees to 75 degrees Celsius Extended stor age in temperatures higher or lower than sp...

Page 8: ...o 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 fol lowing paragraphs explain how to in...

Page 9: ...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 rep...

Page 10: ...6 Notes...

Page 11: ...and route it to the sonar unit 6 Mount the sonar unit Transducer Installation These instructions will help you install your Skimmer transducer on a transom on a trolling motor or inside a hull These...

Page 12: ...installations Tools two adjustable wrenches flat head screwdriver Supplies plastic cable ties Shoot through hull installations Tools these will vary depending on your hull s composition Consult your b...

Page 13: ...ld you go For most situations you should install your Skimmer transducer so that its centerline is level with the bottom of the boat hull This will usually give you the best combination of smooth wate...

Page 14: ...ond the transducer angle cannot be adjusted for the best fish arches This can be a problem on some hulls that sit with the bow high when at rest or at slow trolling speeds Follow the procedure listed...

Page 15: ...ters molded into each ratchet Place the ratchets into the bracket with the letter A aligned with the alignment mark molded into the bracket Place the ratchets onto the transducer with the letter A ali...

Page 16: ...cer s face isn t parallel with the ground remove the transducer and ratchets from the bracket Place the ratchets into the holes in the bracket with the letter B aligned with the dot stamped in the bra...

Page 17: ...with the bracket alignment mark Place them on the transducer aligned with the 12 o clock posi tion on the transducer stem Reassemble the transducer and bracket and place them against the transom Agai...

Page 18: ...the mounting screw pilot holes You will drill one hole in the center of each slot Drill the holes For the one piece bracket use the 29 bit for the 10 screws For the two piece bracket use the 20 bit fo...

Page 19: ...he sonar unit Make sure to leave some slack in the cable at the transducer If possible route the transducer cable away from other wiring on the boat Electrical noise from the engine s wiring bilge pum...

Page 20: ...rnal tooth washer is supplied with the TMB S Attach motor mounting bracket to transducer 2 Slide the adjustable strap supplied with the TMB S through the slot in the transducer bracket and wrap it aro...

Page 21: ...printed then the nose of the transducer is angled too far down and needs to be raised NOTE Periodically wash the transducer s face with soap and water to re move any oil film Oil and dirt on the face...

Page 22: ...ll can result in damage that could sink your boat Contact your boat dealer or manufacturer to confirm your hull specifications To choose the proper location for thru hull mounting anchor the boat in 6...

Page 23: ...ce of the transducer with 100 grit sandpaper The surface of the hull must be flat so the entire transducer face is in contact with the hull prior to bonding Epoxy transducer to hull 2 Follow the instr...

Page 24: ...or Temp 3 The first Water temperature sensor is built into the transducer This is the sensor that measures surface water temperature If you want two or more temperature readings from other locations y...

Page 25: ...nstallation Three temperature sensor installation with speed Three temperature sensor installation TS 3X temperature sensor SP X speed sensor MY 4X Cable TS 2X temperature sensor Temperature sensor bu...

Page 26: ...b the water flow to the speed sensor Make sure the sensor will remain in the water when the boat is on plane Also make sure the location doesn t inter fere with the boat s trailer Typically the sensor...

Page 27: ...o go ahead and attach the power cable directly to the battery CAUTION When using the unit in a saltwater environment we strongly rec ommend that you shut off the power supply to the power cable when t...

Page 28: ...es a 3 amp fuse Power connections for the sonar unit CAUTION Do not use this product without a 3 amp fuse wired into the power cable Failure to use a 3 amp fuse will void your warranty This unit has r...

Page 29: ...sh or mounted on a portable power supply If you use the supplied bracket you may be interested in the optional R A M bracket mounting system This converts the unit s gimbal bracket to a swivel mount w...

Page 30: ...t page shows the dimensions of a gimbal mounted sonar unit Holes in the bracket s base allow wood screw or through bolt mounting You may need to place a piece of plywood on the back side of thin fiber...

Page 31: ...ma rine caulking compound Some marine dealers stock cable hole covers to conceal the opening No matter what type of installation you prefer be sure to leave enough slack in the cables to allow tiltin...

Page 32: ...many Lowrance products this sonar unit is capable of portable operation by using the optional PPP 11 portable power pack The power pack and an optional portable transducer expand the uses for your so...

Page 33: ...is intended for use when your unit and the vehicle it s mounted in are idle WARNING When the unit is mounted in an unprotected area such as an open boat cockpit the protective face cover must be remo...

Page 34: ...30 Notes...

Page 35: ...nar Menu the five Page options and how they all work together BUT if you just can t wait to get on the water turn to the one page Quick Reference on page 38 Keyboard Sonar unit front view with keyboar...

Page 36: ...t levels Repeatedly pressing PWR will cycle through the back light settings turn off the backlight then turn it back on again Turn off the unit by pressing and holding the PWR key for about 3 seconds...

Page 37: ...f and changes alarm thresholds The fish alarm used with Fish I D is the most popular use It tells you when the sonar sees a fish You can also set deep or shallow depth alarms and zone alarms Popup Hel...

Page 38: ...e is loaded in your unit Sonar Menu The Sonar Menu contains commands for the major sonar features and options You access the Sonar Menu by pressing the MENU key one time You run a command by using the...

Page 39: ...temperature to show overlaid on the sonar chart screen Sonar Features command launches the Sonar Features menu which controls many functions and options including frequency selection screen color mod...

Page 40: ...that represent fish structure and the bottom Sonar Page showing full sonar chart mode Sonar chart display options from left split zoom all models and split frequency X126DF and X136DF only Surface clu...

Page 41: ...l discuss all of those features and options in Section 4 but to show you how easy the sonar unit is to operate the fol lowing page contains a simplified 10 step quick reference that will cover most fi...

Page 42: ...filter out some information but could omit important images We recommend adjusting sensitivity until the background is lightly peppered that is scattered dots ap pear but individual objects like fish...

Page 43: ...see more detail try increasing the sensitivity a little at a time There are situa tions when too much clutter appears on the screen Decreasing the sensitivity can reduce the clutter and show the stro...

Page 44: ...turned on the unit will continue to track the bottom and make minor adjustments to the sen sitivity level with a bias toward the setting you selected Adjusting sensitivity in Manual Sensitivity Mode...

Page 45: ...bol 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 micro...

Page 46: ...ailable on our web site it 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...

Page 47: ...e 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 s...

Page 48: ...e deep alarm s set ting 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...

Page 49: ...d repeat the instructions in step 3 above Zone Alarm The zone alarm is triggered when any echo passes inside the zone alarm bar shown on the right side of the screen To adjust and turn on the zone ala...

Page 50: ...off To turn the fish alarm on 1 Press ALARM 2 Press to FISH ALARM ENT EXIT 3 To turn off the alarm press ALARM to FISH ALARM ENT EXIT Brightness See the entry in this section for Screen Contrast and B...

Page 51: ...es as you slow down the chart speed to match how fast you are moving across the bottom If you are at anchor ice fishing or fishing from a dock experiment with a chart speed around 50 percent If you ar...

Page 52: ...he large fish is 34 64 feet deep The cursor can be moved to any location on the screen letting you pin point the depth of a target 1 From the Sonar Page press MENU to DEPTH CURSOR ENT 2 The depth curs...

Page 53: ...EPTH RANGE ENT and the Depth Range Control Scale appears 3 Press or to select a different depth range a horizontal black bar highlights the selected range 4 When the new range is selected press EXIT t...

Page 54: ...lected 2 To set the upper limit press ENT Press or to change the first number then press to move the cursor to the next number and re peat until the depth is correct then press EXIT 3 To set the lower...

Page 55: ...onditions as fish The microcomputer analyses all echoes and eliminates surface clutter thermoclines and other signals that are undesirable In most instances remaining targets are fish The Fish I D fea...

Page 56: ...n Remember Fish I D is one of the many tools we provide so you can analyze your sonar returns for maximum fish finding information This and other features can help you successfully see beneath the boa...

Page 57: ...OLS ENT EXIT EXIT To turn off Fish I D repeat the instructions in step 2 FishTrack The FishTrack feature shows the depth of a fish symbol when it ap pears on the display This lets you accurately gauge...

Page 58: ...levels of gray tones to show fish targets hidden by surface clutter thermoclines weed beds and other cover The normal mode of operation with FishReveal turned off shows the weakest echoes as black and...

Page 59: ...reach the maximum limit a tone sounds Sonar chart in regular grayscale mode left and in FishReveal mode right Notice how shallow fish formerly hidden in the surface clutter become visible in FishReve...

Page 60: ...e 200 kHz transducer will give you better detail and definition but less depth penetration The 50 kHz transducer will give you greater depth penetration but a little less detail and less definition Re...

Page 61: ...ay line a hard bottom returns a strong signal which causes a wide gray line If you have two signals of equal size one with gray and the other with out then the target with gray is the stronger signal...

Page 62: ...84 percent In Figure 1B no fish are near the left structure but the right structure shows fish holding next to the structure Notice in figures 2B and 3B how Gray line displays a hard rocky bottom the...

Page 63: ...o select Data Type ENT Overlay Data command on the Sonar Menu at left Overlay Data Shown selection menu right In this example we scrolled down the data list to highlight Water Speed When selected the...

Page 64: ...ss or to Data Size EXIT The selected data type will be displayed in the new size To change the font size for another Data Type press ENT and repeat these steps be ginning with step two above 3 To retu...

Page 65: ...nd 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 Depe...

Page 66: ...screen The allows you to better see the virtually instantaneous sonar returns just as you would on a flasher sonar unit For more informa tion on FasTrack see it s entry in this section Pop up Help He...

Page 67: ...ater Distance The sonar chart s Digital Data display option includes a window that shows distance traveled called Water Distance W Distance This information is calculated from an optional water speed...

Page 68: ...lay Mode menu Sensitivity Auto Sensitivity The sensitivity controls the ability of the unit to pick up echoes Sensi tivity can be adjusted because water conditions vary greatly a low sensitivity level...

Page 69: ...control bar used to adjust sensitivity up or down 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...

Page 70: ...unit measures water depth from the face of the transducer Since the transducer is installed below the water surface the distance dis played by the digital depth chart depth scale chart cursor or fish...

Page 71: ...EEL OFFSET ENT 2 The Keel Offset dialog box appears with a plus sign at the front of the box 3 Press to the first number then press to change the number to 1 4 Press to the second number them press to...

Page 72: ...ces You can select the chart to be displayed in reverse grayscale bottom black or FishReveal mode For more information on FishReveal see the entry on that topic elsewhere in this section To change the...

Page 73: ...gets 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...

Page 74: ...ws the left window zoomed to 4X The depth overlay data is set to the default large text size the water temperature is set to the small text size Split Frequency Sonar Chart X126DF and X136DF only This...

Page 75: ...a tone sounds The Split Frequency Sonar Chart page allows you to adjust sensitivity separately for each window Digital Data Chart This mode shows the chart on the right side of the screen The left sid...

Page 76: ...x flashes black 2 The W Speed window title bar flashes indicating the window con tents can be changed Press ENT or to select data type ENT EXIT Options List for customizing Digital Data windows At lef...

Page 77: ...it has a built in simulator that lets you run it as if you were on the water All sonar features and functions are useable When in simulator mode you will see Simulator Mode in the Sonar Page title bar...

Page 78: ...ng across the screen Surface Clarity The markings extending downward from the zero line on the chart are called surface clutter These markings are caused by wave action boat wakes temperature inversio...

Page 79: ...ned off The right view shows Surface Clarity set at High Transducer Type X126DF and X136DF only The dual frequency units include the TRANSDUCER TYPE command With this option you can tell your unit wha...

Page 80: ...e units Press MENU MENU to UNITS OF MEASURE ENT Main Menu left Units of Measure Menu right To set Speed Distance Unit of Measure Press or to change the Speed Distance then press ENT After the option i...

Page 81: ...ech oes between the top and bottom of the 4X bar will show on the screen Press the Zoom Out key ZOUT to return the display to the normal mode At left Sonar Page normal view Center same view zoomed to...

Page 82: ...78 Notes...

Page 83: ...cal wiring on the boat may help Route the sonar unit s power cable directly to the battery instead of through a fuse block or ignition switch 2 Inspect the transducer cable for breaks cuts or pinched...

Page 84: ...nit to eliminate weaker signals such as fish or even structure from the display Try using resis tor spark plugs or routing the sonar unit s power and transducer cables away from other electrical wirin...

Page 85: ...r 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 equ...

Page 86: ...82 Notes...

Page 87: ...Automatic 48 Manual 49 Upper and Lower Limits 35 49 50 76 Display Options 31 35 36 37 68 69 70 71 72 73 F FasTrack 51 Fish Depths 53 Fish I D 33 35 41 44 46 51 Fish Symbols 5 33 35 41 44 46 51 53 Inte...

Page 88: ...34 73 Software Version Information 67 Sonar Chart Color Mode 55 68 FishReveal 54 Sonar Chart Display Options 31 35 36 37 68 69 70 71 72 73 Sonar Menu 31 32 34 40 43 59 61 65 74 Sonar Operation Quick...

Page 89: ...PAIR OR REPLACEMENT OR REFUND AS JUST DESCRIBED IS THE EXCLUSIVE REMEDY AVAILABLE TO YOU AGAINST US FOR ANY DEFECT MALFUNCTION OR NON CONFORMITY CONCERNING THE PRODUCT OR FOR ANY LOSS OR DAMAGE RESULT...

Page 90: ...ge or end our ship ping policies regulations and special offers at any time We reserve the right to do so without notice in Canada If you re in Canada and you have technical return or repair questions...

Page 91: ...y to send a product for repair or replacement you must first receive a return authorization number from Customer Service Products shipped without a return authorization will not be accepted When shipp...

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Lowrance X125, Operation Instructions Manual

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