Garmin 2400 GPS Receiver User Manual
Contents
1. owner s manual and reference guide Copyright 2003 Garmin Ltd or its subsidiaries Garmin International Inc 1200 East 151 Street Olathe KS 66062 U S A Tel 913 397 8200 or 800 800 1020 Fax 913 397 8282 Garmin Europe Ltd Unit 5 The Quadrangle Abbey Park Industrial Estate Romsey SO51 9DL U K Tel 44 1794 519944 Fax 44 1794 519222 Garmin Corporation No 68 Jangshu 2 Road Shijr Taipei County Taiwan Tel 886 2 2642 9199 Fax 886 2 2642 9099 All Rights Reserved Except as expressly provided herein no part of this manual may be reproduced copied transmitted disseminated downloaded or stored in any storage medium for any purpose without prior written consent of Garmin Garmin hereby grants permission to download a single copy of this manual and of any revision of this manual onto a hard drive or other electronic storage medium to be viewed and to print one copy of this manual or any revision hereto provided that such electronic or printed copy of this manual or revision must contain the complete text of this copyright notice and provided further that any unauthorized commercial distribution of this manual or any revision hereto is strictly prohibited Information in this manual is subject to change without notice Garmin reserves the right to change or improve its products and to make changes in the con tent without obligation to notify any person or organization of such changes Visit the Garmin web site www garmin2. 5 7 12 21 22 Transducer Coverage 22 Transducer Type 7 19 U Understanding Sonar 21 24 Understanding the Graph 23 Underwater waypoints 13 Units Tab 18 V View 11 W Warranty ii Water Speed 14 16 19 Water Temperature 14 16 24 Water Temperature Alarm 17 Water Type 19 Whiteline 12 24 Wiring 3 4 Z Zoom 9 11 ZOOM Key 8 For the latest free software updates excluding map data throughout the life of your Garmin products visit the Garmin web site at www garmin com Copyright 2003 Garmin Ltd or its subsidiaries Garmin International Inc 1200 East 151 Street Olathe Kansas 66062 U S A Garmin Europe Ltd Unit 5 The Quadrangle Abbey Park Industrial Estate Romsey SO51 9DL U K Garmin Corporation No 68 Jangshu 2 Road Shijr Taipei County Taiwan www garmin com Part Number 190 00261 00 Rev A
3. O umm jj lll Boat Ground DE Black Wire To Fishfinder 320C Installation Wiring and Interfacing You can download a copy of Garmin s propri etary communication protocol document from the Help and Support section of our web site at www garmin com Complete information concern ing National Marine Electronics Association NMEA format and sentences is available for purchase from NMEA at NMEA Seven Riggs Avenue Severna Park MD 21146 USA 410 975 9425 410 975 9450 FAX www nmed org PIN 1 red 10 35 VDC Power 10 35 volts DC Cable View PIN 3 blue Port 1 Data OUT PIN 4 brown Port 1 Data IN RXD GPS NMEA PIN 5 white Port 2 Data IN N C Device TXD PIN 6 green Port 2 Data OUT andRxD 9 PIN 7 yellow Alarm Low NMEA Device Alarm Relay RAD 100ma max coil current Note During a typical installation only the Red and Black wires are used The other wires do not have to be connected for normal operation of the unit Interfacing The Fishfinder 320C allows for NMEA 0183 Version 2 3 input output with a compatible GPS or navigation device NMEA Input Output must be set to On to send receive data see pg 18 For additional information on using your Fishfinder 320C with NMEA devices see pages 3 13 14 and 18 The following are the sentences for NMEA 0183 version 2 3 Input GPBOD GPBWC only used if RMB not presen
4. Running Simulator Unit is in Simulator Mode This message will reappear after 2 minutes of inactivity If the unit does not detect a transducer attached it will automatically enter Simulator Mode Shallow Water Alarm Shallow Water Alarm depth has been reached Sonar Failed Unit Needs Repair Internal problem with unit Contact your dealer or Garmin Product Support to have the unit serviced Timer Alarm Timer Alarm value has counted down to 00 00 00 Transducer Disconnected Sonar Turned Off No transducer attached bad cable transducer or trans ducer cable was disconnected If the transducer cable is removed while the unit is on reconnect and cycle power Water Speed Sensor is not Working Speed sensor is not detected Check Connections Water Temperature Alarm Water Temperature Alarm setting has reached value above below inside or outside of specified value s A Accessories iv Adjustment Menu 10 Adjustment Menu Options 10 12 Advanced data setup 14 Advanced display 14 Alarms 17 26 Alarms Tab 17 Anti reflective coating 25 ARROW KEYPAD 8 Automatic Scroll Speed 19 B Background Color 16 BACKLIGHT 8 Basic display 14 Battery Alarm 17 Beeper 18 Bottom Lock 11 Bottom Split 11 C Calibrate Water Speed 19 20 Cleaning 25 Color Background 16 Color Bar 16 Custom Range 16 D Data Fields 9 14 DATA Key 8 Date 20 Daylight Savings Time 20 Deep Water Alarm 17 Defaults 12 18
5. 2 H x 6 3 W x 3 25 D 15 8 cm x 16 0 cm x 8 3 cm Weight 2 25 lbs 1 02 kg Display 5 0 diagonal 12 7 cm 4 02 H x 2 94 W 10 2 cm x 7 5 cm high contrast 16 color TFT display with adjustable brightness 234 x 320 pixels Rh Cleaning and Case Fully gasketed high impact plastic alloy waterproof to IEC 529 IPX7 standards age Temp Range 5 F to 158 F 15 C to 70 C Power Source 10 35v DC Usage 17 watts max at 10v DC 15 watts at 13 8v DC nominal Fuse AGC 3AG 2 0 Amp Sonar Power Dual frequency 500 watts RMS 4000 watts peak to peak Single frequency 400 watts RMS 3200 watts peak to peak Frequency 50 200 kHz Depth 1500 foot max depth Depth capacity is dependent on water salinity bottom type and other water conditions Cleaning and Storage The Fishfinder 320C is constructed of high quality materials and does not require user maintenance other than cleaning Clean the unit using a cloth dampened with a mild detergent solution and then wipe dry Avoid chemical cleaners and solvents that may damage plastic components WARNING The Fishfinder 320C lens is coated with a special anti reflective coating which is very sensitive to skin oils waxes and abrasive cleaners CLEANERS CONTAINING AMMONIA WILL HARM THE ANTI REFLECTIVE COATING It is very important to clean the lens using i is ae cleaner which is specified as safe for anti reflective coatings and a clean int free cloth D
6. a fish symbol is selected the graph will display only the information related to that symbol Actual fish returns may not always appear as perfect arches like in simulator mode due to the speed fish orientation and or other conditions Scale controls the depth Scale displayed vertically along the right side of the graph The depth Scale can be configured to display four different ways as an Overlay in the Corners with Basic or No Scale Off UTEM s i i Unit Operation Main Menu Options 31 0 TIM Fish Symbols di Tools Off Scale system Overlay Units Custom Range Background Color Black Number Size Normal Temperature Water Speed Auto Auto Main Menu Graph Tab Fish Symbols Off All available information will be displayed Suspended targets will display as fish symbols Background information will be displayed Same as above with the target depth attached Suspended targets display as fish symbols No back ground information will be displayed Same as above with target depth attached 15 e Custom Range allows you to specify a custom viewing range scale Once enabled this range will appear as Custom in the Range adjustment control The left value will be the top of the scale and the right value the bottom of the scale Unit Operation
7. but the returns from the wider beam 50kHz will be hollow or wide returns Simulated fish icons are displayed in three different sizes Actual fish returns may not always appear as perfect arches due to the speed fish orientation and or other conditions More on understanding the sonar may be found on pages 21 24 Unit Operation Describing the Display Current Adjustment Option Numbers Bottom Narrow beam returns Fish Symbol Depth Scale Fish Arches Simulated Flasher Thermocline Wide beam returns Frequency mode Unit Operation Adjustment Menu Options Adjustment window Pointer Current adjustment setting Normal setting area Ho Zoom Range cAuto i Disabled Scro Size Split Defaults ENO for Main Menu Adjustment Menu options Using the Adjustment Menu The Adjustment Menu allows direct access to the settings and features most commonly used on the Sonar Page There are 10 main adjustment options available Range Zoom View Gain Target Level Whiteline Frequency Depth Line Noise Reject and Scroll All adjustments may be made by using the ARROW KEYPAD and ENTER key The currently selected option will appear in the upper left of the display with an up and down arrow on each side of the name To change an Adjustment Menu setting 1 Press the MENU key to bring up a list of all options and their current settings The
8. com for current updates and supple mental information concerning the use and operation of this and other Garmin products GARMIN See Thru and DCG Depth Control Gain are registered trademarks of Garmin Ltd or its subsidiaries and may not be used without the express permission of Garmin March 2003 Part Number 190 00261 00 Rev A Printed in Taiwan Preface Thank you for choosing the Garmin Fishfinder 320C This product is designed for easy operation and to provide years of reliable service Please take the time to read this Owners Manual and learn the operation of your new unit This will help ensure that you get the most from the Fishfinder 320C This manual is broken down into three sections for your convenience Section One covers the installation and testing for the Fishfinder 320C Section Two provides detailed references to the features and operations of the Fishfinder 320C Section Three gives a basic overview of how sonar works and provides information on interpreting the sonar graph Product Support If you encounter a problem or just have a question our Product Support Department can be reached Monday Friday 8am to 5pm Central Standard Time By phone at 1 800 800 1020 or 913 397 8200 Online at http Avww garmin com contactUs techSupport jsp Check the Garmin Web Site www garmin com for links to Product Support and Product FAQS Enjoy your new Fishfinder 320C and once again thank you for choosing Garmin Produc
9. greater risk of striking underwater objects Installation Testing the Installation Unit Operation Keypad Usage 7409 0 FREQ DATA GAIN MENU QUIT RIAN IC ENTER PAUSE NOTE Always press and release a hey to perform its primary function Pressing and holding a key will activate its secondary function if available 8 Using the Keypad ZOOM Key displays the Zoom adjustment control Pressing Up Down on the ARROW KEYPAD will select the desired zoom level FREQ Key displays the Frequency adjustment control Pressing Up Down on the ARROW KEYPAD will select the desired sonar frequency DATA Key toggles the data field in the upper left of the Sonar Page between the Basic and Advanced displays When held for more than 2 seconds enters Advanced data setup GAIN Key displays the Gain adjustment control Pressing Up Down on the ARROW KEYPAD will select the desired gain setting QUIT Key exits the current menu or configuration option Returns the display to the previous page and when entering data restores the previous data cancels data entry MENU Key from the sonar screen displays the Adjustment Menu Press again to access the Main Menu for unit configuration ARROW KEYPAD used to select highlight menu options and enter data Also controls movement of the cursor when paused in Pointer mode Allows direct control of Sonar Page Adjustments RANGE Key displays the Ran
10. quickly select a display zoom scale or to split the display When a scale other than No Zoom is selected the Adjustment Menu will display a new selection labeled View or Span The Zoom function is divided into six display levels 2X Split Shows two reduced size sonar pictures at the same time The right half of the display screen shows the complete sonar picture at its original scale The left half shows a portion of the original picture at 1 2 depth scale 2X Zoom Displays the 2X zoomed picture on the full screen and does not show the original scale picture 4X Split Shows two reduced pictures the right at the original depth scale and the left at 1 4 the original depth scale 4X Zoom Displays only the 4X zoomed picture on the full screen Btm Bottom Split Shows two reduced pictures the right at the original depth scale and the left showing sonar returns from the bottom up All target depths will read as a distance from the bottom Btm Bottom Lock Displays only the Bottom Lock returns from the bottom up picture on the full screen e View Span available when a Zoom scale other than No Zoom is selected The View or Span setting is used to change the viewing range of a zoomed display If the display is 2X or 4X split only the zoomed portion on the left side of the display will be affected by the change If the display is Bottom Split or Bottom Lock Span will adjust how far off the bottom
11. 0C Unit The Fishfinder 320C can be flush mounted on a flat panel When flush mounting the Fishfinder 320C be sure to choose an appropriately sized location for the unit Check that all cables will reach the unit mounting location before beginning installation Use the Flush Mount Template provided in the box to determine a location Be sure to always wear safety goggles and a dust mask when drilling cutting or sand ing Included Mounting Hardware 4 3mm Studs 4 Flat Washers 8 3mm Hex Nuts To flush mount the Fishfinder 320C Trim the Flush Mount Template and tape in the desired location Unit Installation Using a Center Punch indent the center of each Mounting Hole location Using an 1 8 3mm drill bit drill the four Mounting Holes Using a 3 8 6mm drill bit drill a hole for a location to begin cutting the mounting surface Mm BB W N Using the Jig Saw cut the mounting surface along the inside of the dashed line indicated on the template Be very careful when cutting this hole there is only a small amount of clearance between the unit and the Mounting Holes It may be prudent to cut slightly inside the indicated line and then sand or file the panel as needed to obtain the best fit 6 Install the four Mounting Studs into unit by screwing the shorter section in to the back of the unit Use a 1 16 2mm Allen Wrench to tighten the Mounting Studs until the stop contacts the case Be careful not to overtighten as this ma
12. 1 333 H094 47 941 New Waypoint 002 N 38 51 333 W094 47 941 Cancel ok You may send an underwa ter waypoint to a GPS unit 13 Unit Operation Basic and Advanced Data Fields The top left of the screen contains configurable data fields for the sonar display Pressing the DATA key will allow you to toggle between a Basic and Advanced data field display By default the Basic display will show the depth water temperature and speed depending on the Graph Tab settings and type of transducer Using the DATA Key sensors attached The Advanced display shows a larger configurable data field with a white background The Advanced data setup allows you to specify the type of data displayed and either a Narrow Small or 29 6 COMPASS Wide Larger size format for each data field D muda ODOMETER The following selections require the proper NMEA data see pgs 3 4 in order to display information in ar POSITION a data field Bearing Compass Course Distance to Next Off Course Pointer Position Speed Time Of Day E TIMER Track Turn VMG NMEA Input Output must also be enabled to receive this data see pg 18 160 7 129 e To toggle the data field display WATER TEMP LOG 1 Press and release the DATA key to alternate between the Basic and Advanced data field displays To access the Advanced data setup Select an item from the list and press ENTER to configure P
13. 12 plastic thru hull mount depth e 200kHz 12 plastic thru hull mount depth temp e 200kHz 14 plastic in hull mount depth e 200kHz 14 plastic trolling motor mount depth temp Introduction Selecting a Transducer dead zone fish not seen Introduction Table of Contents Introduction aaaea i Vi Preracesand Resistant o oso e socie cedes i i Floris ARE T ii Software License Agreement iii Ea a E e EEE deus um 04r adii dites iv Selecting a Transducet i soc res V Tale OL CORPS 6o oid alatis erp oqt vi Section One Installation LL 1 7 Unit Installation zia reete l Wiring and Interfacing 1 ie eate iret 3 Mounting the Transducer eset eet 5 Testing the Installation 7 Section Two Unit Operation 8 20 Keypad LSd9eo 2324 edat uat Gu tdi n eed 8 SONAIACS 6 Desideri uA Va aide eras 9 Using the Adjustment Menu 10 Adjustment Menu Options 10 RANG MEET 10 Zo 10 VIEWS DE eaire tet at es Go vieta asl ode tes l1 Srl m MICE MA WA Cer BOULE cenis Dapur Seanpangniar 11 OUO e EE SEOST ETE E EOT 12 PRCOUEINO Ys 1 83 eedeteieb rop a fd 12 VI Ib ao dca c PETER 12 NOISE REEE diaues ei Abe qa Id cR eR x 12 son OE PPP 12 Sure Sls ne eae ne ee 12 Using the PAUSE Key o noce bes 13 Using the DATA Key l4 KTE a s aset quete a a A 15 C E EEEE EE E ee A TT Io FISH OVIMDOIS dresata dirette tra
14. 20C Unit Surface Mount Bracket and Knobs Power Data Cable Owners Manual e Self Adhesive Quick Reference Guide Protective Cover Flush Mount Hardware Kit Optional Package 010 00289 01 includes Standard Package plus Dual Frequency 200 50kHz 10 40 Plastic Transom Mount Transducer with Depth and Temp e Separate Speed Sensor Optional Package 010 00289 02 includes Standard Package plus Single Frequency 200kHz 20 Plastic Transom Mount Transducer with Depth and Temp e Separate Speed Sensor Optional Accessories e US A C PC Adapter EURO A C PC Adapter Cigarette Lighter Adapter 2nd Mounting Station 10 ft Transducer Extension cable 20 ft Transducer Extension cable Temperature probe Speed sensor Temp amp Speed only sensor plastic thru hull mount Optional Transducers Included in the Optional Pachages are transom mount transducers and separate speed sensors These transducers provides good all around performance For a list of optional transducers see page v Transducers The transducer acts as the eyes and ears of your new sonar Proper transducer selection and installation are important to the operation of your unit The transducer transmits sound waves toward the bottom in a cone shape The larger the cone angle the larger the coverage area at a given depth While it is good to see as large of an area as possible it is best to select a transducer that suits the water that you are on A wide con
15. Background Color allows you to change the background color of the sonar display Choices are Main Menu Options Black Blue or White e Number Size allows you to choose between a Normal or Large sized Basic depth temp speed display This does not change the Advanced data field number sizes web ner OO O Temperature and Water Speed hides or displays temperature and water speed on the Sonar Arm Off l E l Me iom Tem color Bor Page When set to Auto the unit will automatically display this information only if it is received System Off from the transducer I TENE Graph Time Tools Tab Controls the display of useful sonar tools The following settings are available e Flasher with the Flasher active a graphic Flasher representation will be displayed on the far right side of the graph This graphic Flasher displays structure and bottom returns much the same as a true Flasher You may find this feature particularly useful when using Fish Symbols Mian enms Took Tah Color Bar shows a gradient scale of the current Target Level setting see page 11 Temperature Graph toggles On or Off the display of a temperature graph on the Sonar Page Temp Temperature Tab P 9o eo Displays the water temperature log if equipped with a temperature transducer sensor The graph reads eee from right to left so that the most recent temper
16. Depth 9 10 13 15 18 Depth Line 12 Depth Number 16 19 Depth Units 18 Distance Units 18 Drift Alarm 17 E ENTER Key 8 F Factory Settings 18 Fish Alarm 17 Fish Symbols 9 15 Flasher 16 Frequency 12 FREQ Key 8 Fuse 3 25 G Gain 1l GAIN Key 8 Graph Tab 15 Appendix C H Index Heading 19 I Installation 1 3 5 7 Interfacing 3 4 K Keel Offset 19 Keypad Usage 8 L Language Selection 18 Log and Graph Scale 16 M Main Menu 15 MENU Key 8 Messages 26 N NMEA 23 4 8 13 14 18 20 NMEA Setup 18 Noise Reject 12 2 Appendix C Index Number Size 16 P Packing List iv PAUSE key 8 13 Pointer Mode 13 Position Format 18 POWER BACKLIGHT key 7 8 Power Up 7 Preface i Q QUIT Key 8 R Range 10 RANGE Key 8 Registration 1 Reset Temp Scale 16 Reset Odometer 18 S Scale 15 28 Scroll 12 13 Scroll Speed 19 Serial Number ii Setting an Alarm 17 Sonar Tab 19 Shallow Water Alarm 17 Simulator 18 Size Split 12 Software License Agreement iii Software Version 18 Sonar Understanding 21 24 Sonar Page 9 Span ll Specifications 25 Speed Units 18 Split Screen 11 12 Storage 25 System Tab 18 T Table of Contents vi Target Level 11 Temperature 16 Temperature Graph 16 Temperature Tab 16 Temperature Units 18 Testing the Installation 7 Thermoclines 24 Time 20 Timer 17 Time Duration 16 Time Format 20 Time Tab 20 Time Zone 20 Tools Tab 16 Transducer v
17. ID var MN 15 CUSTOM RAM Coad oor bebes taa 16 Backoround Colot 26 tossed dues ade pas 16 NUTHDEE SIZE ce a7 debet est ee Rt 16 Temperature and Water Speed 16 Took JE Due gaye acetate ciga ial ete D ER 16 BAGO seth RET CENE ote 16 COMO BAR aes Sere ot patient oes 16 Temperature Graph Lasse dics ore ent 16 CHAD LIAL som ates odia edu as 16 Temperature Scale cnn hs d dicen nate Beak 16 Tire DUNO 03 19 suse eraten ties ekkrios 16 Reset NUEO Scale ico su ee urnsevet Statins 16 Adamo WD ec uos Adds dioec aA Iis PIS AEM eo etaed ter intranet denen asp veh Ly Shallow Deep Water Alarms 17 PUAKI ot dah ste arent ae 6 deret n i Water Temperature Alarm 17 Battery AAW deo ecc he totu cea IB E oea e EE RN eae Ss 17 DUSIGIPI DE enc he i tutt SA ee arts 18 DECIDED ce poten ty Eyedetesa ted acinar tila 18 PAM QUA DE cop ake sore cp fue oo pa tox 18 Simulator 00 00 18 NMEA Input Output siirre 18 FOD eL L DS ci elytra a ds rd ate ae 18 SOULWARE VEISION daa sage enn 18 Reset OUO fe E aces Bare Swed esee eects 18 DENS ges TE edt ira etes 18 iB oj c CT REN 18 Tempe 65 03 mek hie e pacer 18 Distance and Speed oaa utente E 18 PoSIEIODI F ONAL poranne anea Bass 18 TLCAGU o xiucesacteps deut oo denti 19 seva PM TIS 19 Wae TPE vu atas id rer ne er eer 19 De tli MUNDE ireira oui iaa 19 Automatic Scroll Speed Limit 19 Wee OM GOB NR 19 Transducer Ype porien ang Rena dns 19 Calibrate Wate
18. Terminal 3 Install the Black wire on the Negative Fuse Holder Terminal 4 Install a 2 amp fuse in the Fuse Holder The Fishfinder 320C can be connected to another piece of NMEA compatible electronic equipment such as a Garmin GPS Global Positioning System If equipped with a capable transducer the Fishfinder 320C can send depth temperature and speed information It can also mark a location pg 13 that could be displayed on another device and can accept GPS navigational data pg 14 such as position time course distance etc Refer to the wiring diagram on the following page for interfacing the Fishfinder 320C with other devices Installing the Wiring Harness to a GPS 1 Follow steps 1 4 of the above wiring harness installation For Garmin units the Ground black wires from both devices must be attached together or on the same fuse terminal for data ground Refer to the wiring diagram of your GPS unit for wire identification 2 Connect the Blue Data Out wire from the Fishfinder to the Data IN wire on the GPS harness 3 Connect the Brown Data In wire from the Fishfinder to the Data OUT wire on the GPS harness 4 Setthe Fishfinder 320C NMEA Input Output to On pg 18 For Garmin GPS units set the communications interface to NMEA NMEA NMEA In NMEA Out or NMEA Installation Wiring and Interfacing To 10 35 Volt Boat Supply Install 2 Amp Fuse Q Q Q mum j
19. adjustment window will automatically time out and disappear when idle for 20 seconds or you may press QUIT to exit High light the desired option to change and press ENTER to bring up the Adjustment window Alternately press the dedicated ZOOM FREQ GAIN or RANGE key to adjust the desired option 2 With the ARROW KEYPAD move UP or DOWN and place the setting bar or pointer at the desired per centage Off 1 100 setting or range When changing most adjustments an open space will appear on the scale to show where the of Normal or default setting would appear Once set to Normal the setting bar will be replaced by the word Normal 3 Press ENTER or QUIT to accept the new setting and return to the sonar graph For users accustomed to other Garmin sonar products the current adjustment will appear in the upper left corner For fast adjustment from the Sonar Page press LEFT or RIGHT on the ARROW KEYPAD to scroll through the options then press UP or DOWN on the ARROW KEYPAD to immediately change the current option or the ENTER key to review the current setting before making changes Adjustment Options The Adjustment Menu allows direct access to the settings and features most commonly used These available adjustments are Range sets the display depth range used for viewing The unit can be set to automatically track the bottom or set to a user specified depth range see Custom Range pg 16 Zoom used to
20. ature measured is displayed on the far right side of the graph EETA s Duration The dotted lines within the graph indicate intervals in the temperature scale and the duration of time The system 10 Minutes Units Temperature Log Tie Log and Graph Scale sets the temperature range in degrees for displaying the log Select Auto to have the unit automatically determine the best range or select a span of 2 4 6 8 or 10 degrees following settings are available Reset Scale resets the scale range for the temperature graph This is useful when the scale spans a large range due to extreme temperature changes Only shows when Log and Graph Scale is set to omin se Auto Log Duration sets how fast or slow the temperature log scrolls the shorter the time duration the 16 Main Menu Temp Tab faster the temperature log scroll Select a duration from 1 minute to 2 5 hours Alarms Tab Unit Operation Contains settings for the units alarms For a list of alarms and unit messages see page 26 The Alarm tab is divided into two submenu tabs Sonar alarms and System alarms Sonar Main Menu Options e Fish sets alarm icon to sound display when unit detects a fish of the specified symbol size Shallow Water Deep Water set alarms to sound when you enter an area of specified depth that is too shallow and or too deep EXIT Sy
21. ay unit make sure you consider the following conditions e There should be at least a 3 8 cm clearance behind the case to allow connection of the transducer and power data cables e The mounting surface should be heavy enough to support the unit and protect it from excessive vibration and shock NOTE The temperature range for the Fishfinder 320C is 5 F to 158 F 15 C to 70 C Extended exposure to temperatures exceeding this range in storage or operating condi tions may cause failure of the LCD screen This type of failure and related consequences are NOT covered by the manufacturer s limited warranty To surface mount the Fishfinder 320C display 1 Place the mounting bracket in the desired location Mark and drill the four mounting holes for the fastener you are using 2 3 Fasten the bracket to the surface using the appropriate fasteners 4 Insert the Fishfinder 320C into the mounting bracket The bracket is designed for a tight fit to provide The Mounting Bracket is designed to be secured using a additional support when swiveling the unit flat head screw If you use a screw with a countersunk l head isk d ing the Mounting Bracket Screw the two mounting knobs through the bracket and into the display case Ma er d 6 Connect the power data and transducer cables to the back of the unit making sure the locking rings are 1 fully tightened on both connectors On Installation Flush Mounting the Fishfinder 32
22. bed the unit operates by transmitting sound waves toward the bottom of a lake stream or seabed in a cone shaped pattern When a transmitted sound wave strikes an underwater object such as the bottom a piece of structure or a fish sound is reflected back to the transducer The transducer collects the reflected sound waves and sends the data to the unit to be processed and displayed on the graph The underwater data is displayed on the graph in the order that it is returned first returned first on the graph The diagram below demonstrates this by showing an underwa ter scene as it would be displayed on the graph Generally speaking if the only thing between the transducer and the bottom is water the first strong return will come from the bottom directly below the transducer The first strong return sets the bottom level Weaker secondary returns provide the detailed data Sonar returns will display as reds strongest then oranges strong yellows medium greens weaker and blues weak est That is a brief description of how your Fishfinder 320C operates The following pages will show how this data can help you to improve your fishing This fish is currently in a dead zone and is not detected by the sonar The fish is in the coverage area of the transducer but remember the first strong return sets the bottom level The fish will eventually be detected when the first strong return sets the bottom level below the fish On the Wate
23. cables 24 T i NC Time Tab Grap Time Format Tene E M Displays the current time and date allows you to adjust the 12 or 24 hour time format enter a time Sytem Central zone and adjust for daylight saving to show correct local time The time will only display if you are receiving PT valid NMEA input from a GPS unit see pgs 3 4 or in simulator mode The following settings are available 08 00 05 Time Format choose from 12 or 24 hour military time format 25 JAN D3 Time Zone choose your correct time zone to show correct local time or enter a UTC also called Greenwich Time Offset The UTC offset is how many hours you are ahead or behind the time line Daylight Saving Time choose from Auto On or Off to adjust for daylight saving Current Time and Current Date display current time and date Fields will be blank if not 20 Main Menu Time Tab receiving a time from an attached GPS It is not possible to edit these fields Understanding Sonar If you are unfamiliar with basic sonar or need help determining what is displayed on the graph this section may be for you This section is intended to help the novice user gain some understanding of how the Fishfinder 320C operates and how it can help improve their fishing productivity To understand what the unit is displaying it is important to have a general knowledge of how the unit works and how it determines what to display Briefly descri
24. d safety goggles Shoot Thru Hull Installation Some transducers are specifically designed to be mounted inside a fiberglass hull The standard plastic transom mount transducer can also be mounted in this fashion using this method If using a temperature sensing transducer the temperature displayed will reflect the hull temperature Selecting a location Weight transducer 1 The location has to be solid fiberglass devoid of any air bubbles laminates fillers or dead air space The to hold it in place location needs to be in an area of clean water at all speeds Do not place the transducer over any strakes or behind any obstruction on the hull that would create turbulence at speed PVC Pipe or a Can o A NOTE Many modern hulls have a prelocated pocket for shoot thru hull transducer EN e OE installation If you are unsure if your hull is equipped with a pre located pocket with water or a inada contact your hull manufacturer Strip Caulk or RTV Sealer Testing the location Hull Surface 1 Fabricate a test device from a section of PVC pipe or a can as shown in the side bar Testing the Location 2 Temporarily seal the test device to the hull with caulking or RTV sealer and fill with water or light mineral oil 3 Place the transducer in the water pointed directly at the bottom and weight it down Set unit for opti mum performance If the sonar performance is significantly degraded another location will need to be t
25. e Sonar display 1 From the Sonar Page press PAUSE to stop the scrolling Press PAUSE again or QUIT to unpause To start stop Pointer mode 1 or 1 From the Sonar Page hold PAUSE for two seconds Use the ARROW KEYPAD to move the cursor around on the screen Press PAUSE again or QUIT to quit From a paused Sonar Page hold PAUSE for two seconds Press PAUSE or QUIT once to return to the paused display or twice to unpause and resume normal scrolling To mark an underwater waypoint 1 2 From the Sonar Page hold PAUSE to enter Pointer mode and pause the screen movement Use the ARROW KEYPAD to move the cursor onto the target underwater drop off stump etc you want to mark A data field will appear with the cursor s depth surface temperature for that position and GPS coordinates Press ENTER The New Waypoint window will appear with a default three digit name and pointer s coordinates automatically filled in To change the name highlight the name field and press ENTER Make your changes using he ARROW KEYPAD and press ENTER when done When finished move the field highlight back to the OK prompt and press ENTER The unit will then send a NMEA WPL sentence to an attached GPS unit or NMEA navigational device see pgs 3 4 Unit Operation Using the PAUSE Key D As you move M the Pointer the Depth Temp Sand Position if available will display at the top ma N 38 5
26. e angle transducer works best in shallower water The wide cone angle provides a large cov erage or viewing area but at a decreased bottom resolution In deeper water this can result in a large dead zone where fish cannot be seen A narrow cone angle transducer is better suited to deep water installations The narrow cone angle pro vides a smaller coverage or viewing area compared to a wide cone angle transducer at the same depth with improved bottom resolution and a smaller dead zone A variety of optional transducers are available from your local dealer or direct from Garmin 200 50kHz 12 45 plastic transom mount depth temp 200 50kHz 12 45 plastic transom mount depth temp speed 200 50kHz 12 45 bronze thru hull mount depth 200 50kHz 12 45 bronze thru hull mount depth temp speed e 200 50kHz 12 45 bronze thru hull mount long stem depth temp speed e 200 50kHz 12 45 plastic thru hull mount depth e 200 50kHz 12 45 plastic adjustable in hull mount e 200kHz 14 plastic transom mount depth 200kHz 14 plastic transom mount depth temp e 200kHz 14 plastic transom mount depth temp speed 200kHz 8 plastic transom mount depth temp e 200kHz 8 plastic transom mount depth temp speed e 200kHz 12 bronze thru hull mount depth e 200kHz 12 bronze thru hull mount depth temp e 200kHz 9 bronze thru hull mount depth temp speed e 200kHz
27. ested Permanently installing the transducer 1 Lightly sand the surface of the hull and face of the transducer with 400 grit wet or dry sandpaper 2 Build a dam using strip caulk about 1 4 tall Pour about 1 8 of two part slow cure epoxy in the dam 3 Place the transducer in the epoxy turning the transducer to work out any air bubbles 4 Weight the transducer in place and allow to cure for 24 hours Testing the Installation While it is possible to perform some checks with the boat trailered the boat should be in the water to properly test the sonar portion of the installation Press the POWER BACKLIGHT key see pg 8 and the Fishfinder 320C should power on If the unit fails to power on verify that the wiring adapter is seated properly in the back of the unit the Red and Black wires are connected to the correct polarity and that the 2 Amp fuse is installed and not blown If the unit is connected to a power supply that exceeds 35v DC a Battery Voltage High warning will be displayed and the unit will turn off If the unit does not detect a transducer it will automatically enter Simulator Mode When the unit detects a transducer on initial power up a Please set up transducer message will appear Press the ENTER key see pg 8 to select the transducer type Highlight your transducer type with the ARROW KEYPAD and press ENTER Press QUIT to return to the Sonar display Since water is necessary to carry the sounder so
28. f of the Sonar Page To resize the Sonar Page split screen 1 From the Sonar Page split screen press MENU 2 Using the ARROW KEYPAD highlight Size Split and press ENTER 3 Move the horizontal double arrow LEFT or RIGHT using the ARROW KEYPAD until the desired vertical width line shows then press ENTER 4 f you wish to cancel this operation press QUIT Defaults restores Adjustment Options back to original factory settings Using the PAUSE Key You may use the PAUSE key to stop the Sonar Page from scrolling The paused display allows you to take a better look at sonar returns When in this mode Paused will appear at the bottom of the display You may also use Pointer mode to move a cursor around on the paused sonar graph in order to reference sonar items and mark waypoints for that location if attached to a Garmin GPS or compatible NMEA naviga tion device See pg 4 When Pointer mode is activated a data field will appear at the top of the graph with the cursors depth surface temperature for that position and GPS coordinates if available This makes it easier to find and use an object such as stumps rocks or brush piles for a future fishing location The depth will continue to update while the display is paused but the unit will not show any new sonar data until the Sonar display is unpaused You may see a discontinuity from where the sonar information stops to where it starts again To pause and unpause th
29. f the screen contains numbers or data fields such as Depth Water Speed and Water Temp see pg 14 while the currently selected Adjustment see pg 10 option will appear in the upper left of the display The middle of the page contains a right to left moving sonar image of the water beneath your boat Note Items appear as they pass under your transducer Those items on the right side of the screen are closer to you than those on the left Along the right side of the screen is an adjustable scale which reflects the depth of the area being displayed The sonar display may also be set to show a split screen view of a zoomed portion of the sonar bottom lock display scaled from the bottom up or a combination of these options see pg 11 For example you may choose to show dual frequency at a 2X zoom Dual 2X on one half and normal range dual frequency Dual returns on the other half The current display mode will be displayed at the bottom of each sonar display Sonar returns will show as red strongest then oranges strong yellows medium greens weaker and blues weakest The Fish Symbols option see page 15 allows you to view the actual sonar data a fish symbol or a combination of both Fish Symbols will appear as green When the unit is set to Dual see page 12 the appearance of the fish symbols and simulated fish returns will change Fish symbols from the narrower beam 200kHz will be solid or narrow returns
30. fittings water intake or discharge ports or anything that creates air bubbles or causes the water to become turbulent It is important that the transducer be in clean non turbulent water for optimal performance ey a the transducer cable cover Apply marine sealant to all well above the waterline screw threads to prevent water I from seeping into the transom HUM Transducer should extend 1 8 below fiberglass hull or 3 8 below aluminum hull Y lt Make sure that the transducer is Speed Temp Transducer 4 Ki below water level when the boat INL is on plane at high speed Do not mount transducer directly in the A path of the prop The transducer can cause aa Connecting a Transducer to Multiple Sensors cavitation that may degrade the boat s performance and damage the prop Mount the transducer parallel with the bottom lu cd J Installation To avoid drilling a hole to mount a thru hull transducer a transducer may be secured with epoxy inside a boat shoot thru hull installation This type of installation can provide better noise reduction and allow you to use a higher gain setting For a transducer to be mounted inside the hull shoot thru not thru hull the boat must be fiberglass with no core Contact your boat manufacturer if you are unsure Professional Mounting the Transducer installation may be necessary Be sure to always wear a dust mask an
31. ge adjustment control Pressing Up Down on the ARROW KEYPAD will select the desired setting ENTER Key selects a highlighted menu option When entering data it allows you to initiate entry and then accept the selected value s When paused in Pointer mode will create a waypoint at the Pointer posi tion if equipped with compatible NMEA GPS POWER BACKLIGHT Key press and hold to turn the unit on and off While the unit is on pressing and releasing will display the backlight control Multiple presses of the POWER BACKLIGHT key will toggle the units backlight between maximum user set and minimum backlight brightness levels PAUSE Key pauses the scrolling sonar display When held for more than 2 seconds enters Pointer mode Use the ARROW KEYPAD to move the cursor around the display to examine the depth of specific items in greater detail If the Fishfinder 320C is interfaced with a Garmin GPS or compatible NMEA navigation device pgs 3 4 pressing the ENTER key in this state will send a WPL sentence to that device if the cur rent position is known creating a waypoint at that position See pages 13 for more information Sonar Page The Sonar Page is where your Fishfinder 320C becomes a powerful fishfinder flasher If the unit does not detect a transducer a Sonar Turned Off message will appear across the Sonar Page If in Simulator mode a Running Simulator message will appear after 2 minutes of inactivity The top left o
32. h reference to Magnetic North using the magnetic varia tion value received in the RMC NMEA sentence see pgs 3 4 Unit Operation Main Menu Options Sonar Tab Allows you to set up initial settings and calibrations The following settings are available 28 9 e Water Type since sound waves travel through Fresh and Salt water at different rates it is Tan 20 necessary to select the Water Type to ensure accurate readings on the unit TE Depth anbar _ System Fast Sonar Update Depth Number controls the efficiency of the digital depth update rate Fast Sonar Update will crema tomatic Scroll Speed Limit update quicker and is recommended for low noise deeper water gt 50 ft Auto is best for shallow Ll water or high noise areas will have a slower screen update and is best used if you travel a wide Pam EN variety of depths S TEL Calibrate Water Speed If the unit is unable to track the bottom for any reason the digits in the depth window will flash on and off to alert you that the unit is not tracking the bottom e Automatic Scroll Speed Limit automatically adjusts the Scroll rate see pg 12 to the speed Man Micke Sona qup of your vessel if equipped with a speed sensor or receiving GPS NMEA input Entering your maximum cruising speed will produce a 100 scroll rate when you reach that speed One half of that speed will pr
33. icates a softer bottom while a thick whiteline indicates a harder bottom Normally a red line is used to show the point where water meets the bottom This line will follow the bottom contour along with any significant objects lying on the bottom The unit uses the whiteline function to make this bottom layer information easier to Whiteline and Thermoclines distinguish Whiteline can also help you to determine the type of bottom struc With the Fishfinder 320C ture that is displayed on the graph By determining the hardness active whiteline helps accentuate of the structure you can make a better informed decision on the where strong signals are located type of structure which make bottom type deter mination easier The example to the right shows the bottom return with and without the whiteline activated Hard Bottom Soft Bottom Whiteline Whiteline Turned Off Thermoclines One of the unique features offered by Garmin is See Thru technology See Thru technology allows the Fishfinder 320C to see through thermoclines and helps locate fish where they live and fish love thermoclines A rough definition of a thermocline is a break in water where the water temperature changes Structure is hard Structure is soft faster than the water above it Thermoclines are shown probably a roch or stump probably a mud pile as the weakest colors see pg 9 Thermocline 24 Physical Specifications Appendix A Size 6
34. ies You further acknowledge that the structure organization and code of the Software are valuable trade secrets of Garmin and that the Software in source code form remains a valuable trade secret of Garmin You agree not to decompile disassemble modity reverse assemble reverse engineer or reduce to human readable form the Software of any part thereof or create any derivative works based on the Software You agree not to export or re export the Software to any country in violation of the export control laws of the United States of America WARNING This product its packaging and its components contain chemicals known to the State of California to cause cancer birth defects or reproductive harm This Notice is being provided in accordance with California s Proposition 65 If you have any questions or would like additional information please refer to our web site at http www garmin com prop65 Introduction Software License Agreement Introduction Packing List For the most recent list of available accessories for your unit current user manuals and software updates visit our web site at www garmin com Before installing and getting started with your unit please check to see that your package includes the following items The package part number can be found on the outside of the box If any parts are miss ing please contact your Garmin dealer immediately Standard Package 010 00289 00 w o transducer e Fishfinder 3
35. ld setup screen Main Menu The Main Menu contains the unit settings that should not require frequent change The Main Menu is divided into eight tabs Graph Tools Temp Alarms System Units Sonar and Time Each tab will be described in more detail in this section To enter the Main Menu press the MENU button on the face of the unit twice The first time you enter the Main Menu the Graph tab will be highlighted in black Pressing the UP or DOWN on the ARROW KEYPAD will move the highlight between the tab selections Press the RIGHT ARROW KEYPAD to access the selection fields Each time the Main Menu is accessed the unit will return to the last edited selection field Press the LEFT ARROW KEYPAD to get back to the tabs To change a setting on a Main Menu tab 1 Using the ARROW KEYPAD highlight the desired field and press ENTER and the available options will appear 2 Highlight the desired setting and press ENTER 3 Press QUIT or MENU to return to the Sonar display or to cancel data entry Graph Tab Allows you to determine the appearance of the scrolling graph display and contains the unit settings that should not require frequent change The following settings are available Fish Symbols allows you to determine how the graph will display underwater targets and back ground information If Fish Symbols are set to Off the unit will display all of the available informa tion about the underwater environment If
36. mine bottom hardness See page 24 for more information on this feature Frequency allows you to choose a sonar operation frequency Frequency refers to the pitch of the sound that the transducer sends and receives You may choose 200kHz SOkHz or Dual frequency Depth Line adds a horizontal depth line across the display which is used to measure the depth of underwater objects The depth of the line will appear in a box on the right side of the line Press UP or DOWN on the ARROW KEYPAD to control the position of the line on the graph Noise Reject helps filter unwanted noise from the graph The Noise Reject tool can be turned Off set to Normal automatically adjusts for optimum viewing or to a fixed 1 100 setting When setting the Noise Reject tool the HIGHER the noise rejection setting the more likely the unit is to NOT show fish or structure Scroll adjusts the rate that the graph scrolls from right to left If you are sitting still or the graph is moving too fast slowing the scroll rate or pausing it can be beneficial Auto will automatically adjust the scroll rate according to the boats speed See also Automatic Scroll Speed Limit on page 19 Size Split enables width adjustment of the Sonar Page split screen This option is only available when a split zoom is selected You may adjust the size of the split window anywhere from 1 4 to 3 4 width from the right hal
37. nar signal the transducer must be in the water to work properly It is not possible to get a depth distance reading when out of the water As the unit powers on it should immediately start showing the bottom Verify that the unit is not in the simulator mode If the unit is in the simulator mode make sure that the transducer is connected properly to the unit When you place your boat in the water CHECK FOR LEAKS around any screw holes that have been added below the water line DO NOT leave your boat in the water for an extended period of time without checking for leaks Begin testing the installation at a slow speed If the sonar appears to be working properly gradually increase the boats speed while observing the sonar operation If the sonar signal suddenly is lost or the bottom return is severely degraded note the speed at which this occurs Return the boat to the speed the signal was lost Make moderate turns in both directions and see if the signal improves If the signal strength improves while turning adjust the transducer so that it extends another 1 8 below the transom of the boat It may take several adjustments to eliminate the degradation If the signal does not improve it may be neces sary to move the transducer to a different location A NOTE When adjusting the depth of the transducer make the adjustments in small incre ments Placing the transducer too deep can adversely affect the boat s performance and put the transducer at
38. o not store the Fishfinder 320C where prolonged exposure to temperature extremes may occur such as in the trunk of a car as permanent damage may result Unit settings will be retained in the units memory without the need for external power 25 Appendix B Messages and Alarms The Fishfinder 320C uses an on screen pop up message system to alert you to unit operating char acteristics Press the ENTER key to acknowledge and return to the page you were viewing 26 Battery Alarm Battery voltage has fallen below the value entered in the Battery Alarm setup Battery Voltage High Too much input voltage unit will shut off Lower input voltage Boat is not Moving Fast Enough to Calibrate Boat is not moving fast enough for the speed wheel to provide a valid speed Can t Send Waypoint Unit was unable to transmit the waypoint via the NMEA WPL sentence Check wiring Can t Read Voltages That High Limited To Top Of Range Voltage value in the Battery Alarm setup is higher than the unit can read Can t Read Voltages That Low Limited To Bottom Of Range Voltage value in the Battery Alarm setup is lower than the voltage where the unit automatically turns off Deep Water Alarm Deep Water Alarm depth has been reached Drift Alarm Depth has changed by the amount of the Drift Alarm value Fish Alarm Displays icon and sounds beep if enabled when a fish is detected This alarm does not display a message banner
39. oduce a 50 scroll rate etc Transducer at Surface Enter positive number to show depth from bottom of keel Keel Offset allows you to offset the surface reading for the depth of a keel This makes it possible to measure depth from the bottom of your keel instead of from the transducers location Enter a positive number to offset for a keel It is also possible to enter a negative number to compensate for a large vessel that may draw several feet of water The Keel Offset will be reflected in the depth read ing e Transducer Type this will not appear when in Simulator Mode Allows you to specify what type of ww Transducer at Bottom of Keel transducer you are using User Defined is for future use and should not be used unless instructed f Enter negative number to show depth e Calibrate Water Speed this will only appear if you are using a speed capable transducer sensor from surface Calibration is required to ensure that the Water Speed displayed on your unit will be accurate The 19 unit will automatically use GPS ground speed if available via NMEA input for comparison on the calibration If a GPS ground speed is not available use either your boats speedometer reading not always accurate or a stopwatch to determine your speed over a certain distance distance time speed It is recommended that the calibration take place in water having little or no c
40. pear if you are using a speed capable transducer sensor Resets the Main Menu System Tab odometer field back to zero Units Tab Defines units of measure The following settings are available 444 Graph Depth es Depth lets you select the desired units of measure for depth in Feet ft Fathoms fa or Meters Tels Feet ft Temperature m po Fahrenheit CF Temperature lets you select the desired units of measure for temperature in Fahrenheit F or zm Nautical nm ft kt Celsius C Md rm Distance and Speed lets you select the desired units of measure for distance and speed readouts True in Nautical nm ft kt Nautical nm m kt Statute mi mh or Metric km kh terms Position Format changes the coordinate system in which a position reading is displayed The default format is latitude and longitude in degrees minutes and thousandths of a minute hddd mm mmm The following additional formats are available Latitude longitude in decimal 18 AEE Ae degrees hddd ddddd and Latitude longitude in degrees minutes and seconds hddd mmss s Heading lets you select the reference used in calculating heading information for the the Bearing Compass Course and Track Advanced Data fields pg 14 True will display data with reference to True North Magnetic will display data wit
41. r Understanding Sonar 21 On the Water Transducer Coverage 200kHz 10 Cone Angle 72 coverage at 30 50kHz 40 Cone Angle 20 coverage at 30 22 Transducer Coverage The area covered by the transmitted sound waves is determined by the cone angle of the transducer and the water depth Cone angles may vary between different types of transducers For example a 50kHz frequency may provide a wide 40 cone angle with a coverage width that is approximately 2 3 of the water depth As shown in the sidebar the 40 cone angle 50kHz frequency approximately covers the area of a 20 foot diameter circle at a 30 foot depth A 200kHz frequency may provide a narrow 10 cone angle with a coverage width that is approximately 2 10 of the water depth As shown the 10 cone angle 200kHz frequency approximately covers the area of a 6 foot diameter circle at a 30 foot depth When using the Fishfinder 320C in Dual frequency mode the unit transmits both 50kHz and 200kHz signals at the same time The Dual frequency capability of the Fishfinder 320C allows the user to have a large coverage area and still retain good bottom resolution When in Dual frequency mode the unit uses the narrow cone angle 200kHz to display detailed bottom information keeping Dead Zones to a minimum and the wide cone angle 50kHz for the large coverage area Fish returns from the wide and narrow beams will appear diffe
42. r Speed 19 Tae TADS gic hee tat hs Gah aie EE PIN EROR 20 ANGI OHA ee Lope ee tote eects 20 TIME ZO lt a ote acido er dee petes 20 Day ene Saye TIME sistance goaieon viene 20 Current Time ana Dates ace eee 20 Section Three On the Water 21 24 Understanding SOBBE Ss esc er ett mitto a 2 Transducer Coverage peice est oa trt 22 Understanding the Grab perre ebed hrisivems 23 Whiteline and Thermoclines 24 ADDENGICES x25 eoe iislu s Pe Rb ird 25 28 Appendix A Specifications and Cleaning 25 Appendix B Messages and Alarms 26 Append iG Tide x Coane ne eee de etd tg 2j Installing the Fishfinder 320C Installation The Fishfinder 320C must be properly installed according to the following instructions to get the best possible performance To complete the installation you ll need the appropriate fasteners and tools Check that all cables will reach the unit mounting location and also take time to read through these instructions Unit Installation prior to installation Be sure to always wear safety goggles and a dust mask when drilling cutting or sand ing When in doubt seek professional assistance Surface Mounting the Fishfinder 320C Unit The Fishfinder 320C5 compact waterproof case is suitable for mounting in exposed locations or at the nav station The unit comes with a surface mount bracket that can be used for console or overhead mount ing When choosing a location for the displ
43. rently on the display The wide beam tends to show longer fish returns than the narrow beam oon F Wide Cone Angle Narrow Cone Angle Understanding the Graph It is important to understand that the unit does not display a 3 D representation of the underwater environment The unit can display multiple things at the same time but cannot determine where the return originated only when it was received Examples 1 and 2 provide a look at the underwater world from a top view and illustrate how these views would be displayed on the graph On both graphs it appears the fish and tree are side by side as shown in Example 1 However when we look at Example 2 we see that the fish can be several feet from the tree It is important to remember that the Fishfinder cannot determine where in the coverage area the tree or fish are only that the returns were received at the indicated depths in the same time frame Enlarged Enlarged Transducer Transducer View View B L Lis Example 2 On the Water Understanding the Graph Remember that the Fishfinder displays a 2 D picture of the underwater environment The fish and tree could be located anywhere in the coverage area at that time 23 On the Water Whiteline The Fishfinder 320C can help you to determine if the bottom is hard or soft When the sonar soundwaves are reflected back by the bottom a hard bottom will return a stronger signal than a soft bottom A thin whiteline ind
44. ress QUIT when done 1 Hold down the DATA key to access the Advanced data setup screen The left side of the screen will show the current Advanced display layout The right side will show available configuration options Sonar Page With Adding a Data Field Advanced Data Field You may either directly edit an existing field on the left or choose the type of data you wish to add from the list on the right Highlighted items will appear with a black background and the associated field or data y T um type will be outlined in yellow and red TORMES ID To modify or add a data field Pg Remove 1 Using the ARROW KEYPAD press LEFT to modify an existing field or RIGHT to add a new one then UP Replace or DOWN to highlight the desired item Press ENTER and the available options will appear on the right Kk side 2 Select an option from the list on the right and press ENTER You may choose to display a Wide or Narrow sized format some data fields are only available in Wide format and this option will be grayed s RR out arrange the display order with Move Up or Move Down Narrow data fields will always arrange Middle RN below Wide data fields Remove or Replace the data field For Replace choose a replacement item from the list and press ENTER Modifying a Data Field 14 3 When done highlight OK and press ENTER or press QUIT to exit the Advanced data fie
45. side of the package The unit should then be sent freight charges prepaid to any Garmin warranty service station A copy of the original sales receipt is required as the proof of purchase for warranty repairs Products sold through online auctions are not eligible for rebates or other special offers from Garmin Online auction confirmations are not accepted for warranty verification To obtain warranty service an original or copy of the sales receipt from the original retailer is required Garmin will not replace missing components from any package purchased through an online auction Garmin International Inc 1200 East 151 Street Unit 4 The Quadrangle Abbey Park Industrial Estate Olathe Kansas 66062 U S A Romsey SO51 9DL U K Phone 913 397 8200 Phone 44 1794 519944 FAX 913 397 0836 FAX 44 1794 519222 Garmin Europe Ltd Software License Agreement BY USING THE FISHFINDER 320C YOU AGREE TO BE BOUND BY THE TERMS AND CONDITIONS OF THE FOLLOWING SOFTWARE LICENSE AGREEMENT PLEASE READ THIS AGREEMENT CARE BULLY Garmin grants you a limited license to use the software embedded in this device the Software in binary executable form in the normal operation of the product Title ownership rights and intellectual property rights in and to the Software remain in Garmin You acknowledge that the Software is the property of Garmin and is protected under the United States of America copyright laws and international copyright treat
46. stem Temp Setting Persist Alarms Fish Drift sets an alarm to sound when you ve exceeded a specified drift depth range For example if System Off the value is set to 5 ft and the current depth is 20 ft the alarm will sound if the unit detects a depth Sen daet greater than 25 ft or shallower than 15 ft i Deep Water Off 100 0 _ e Water Temperature sets an alarm to sound when the transducer reports a temperature either El rir _ above below inside or outside the specified values Ee 25 0 System Battery sets an alarm to sound when the battery is reaching a critical state of discharge Main Menu e Timer allows you to choose between a Count Dn Down or Count Up timer You may specify a en oaar Tap duration for the Count Dn Down Stop or Reset the timer To set an alarm 30 9 E 1 Use the ARROW KEYPAD to highlight desired submenu tab of the Alarms Tab Tea pe eer 2 Highlight the field below the alarm name you wish to activate and press ENTER one on net 3 Change the mode to the desired setting and press ENTER Ste TTE 4 Highlight the next field to the right and press ENTER then enter the desired settings and press ENTER to finish 5 Ifyou want the alarm to display and beep until acknowledged highlight the Persist box and press ENTER to place a check mark in the box Main Men
47. t GPGGA GPGLL only used if GGA not present GPRMB GPRMC GPXTE only used if RMB not present Output SDDBT SDDPT SDMTW SDVHW SDWPL only if a waypoint is marked in Pointer Mode Garmin GPS units will accept the SDWPL WPL NMEA sentence and create a waypoint saved location at that position see pg 13 For compatibility with other brands of GPS or NMEA capable navigation devices check with that manufacturer to see if their unit accepts stores NMEA 0183 SDWPL sentences waypoints The Fishfinder 320C does not store the actual waypoint Only the receiving device if capable will store the waypoint Proper transducer installation is key to getting the best performance from your new unit If the trans ducer lead is too short extension cables are available from your Garmin dealer Coil and secure any excess cable DO NOT cut the transducer lead or any part of the transducer cable as this will void your warranty The cable cannot be spliced and connected to any existing Garmin or non Garmin transducer cables Installation Mounting the Transducer Following are some tips and basic installation instructions for some popular transducers Detailed g installation instructions are provided in the transducer kits Some transducers may need to be installed by a professional marine installer Transom Mount Installation Transom Mount Transducer depth temp DO NOT mount the transducer behind strakes struts
48. t Registration Help us better support you by completing our on line registration today Have the serial number of your Fishfinder 320C Sounder handy and connect to our web site www garmin com Look for the Prod uct Registration link on the Home page Also be sure to record your serial number in the area provided on page ii of this manual A NOTE If you have previously registered a Garmin product purchase we invite you to re reg ister using our NEW on line system Many services provided by our new product registration system are now being automated and re registering your purchase ensures you the best possible support from Garmin Introduction Preface and Registration Introduction Warranty and Serial Number Serial Number Use this area to record the serial number 8 digit number located on the bottom of the unit in case it is lost stolen or needs service Be sure to keep your original sales receipt in a safe place or attach a photocopy inside the manual Serial Number LE LT LT A The Fishfinder 320C Sounder is fastened shut with screws Any attempt to open the case to change or modify the unit in any way will void your warranty and may result in permanent damage to the equipment LIMITED WARRANTY This Garmin product is warranted to be free from defects in materials or workmanship for one year from the date of purchase Within this period Garmin will at its sole option repair or replace any components tha
49. t fail in normal use Such repairs or replacement will be made at no charge to the customer for parts or labor provided that the customer shall be responsible for any transportation cost This warranty does not cover failures due to abuse misuse accident or unauthorized alteration or repairs THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED OR STATUTORY INCLUDING ANY LIABILITY ARISING UNDER ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE STATU TORY OR OTHERWISE THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS WHICH MAY VARY FROM STATE TO STATE IN NO EVENT SHALL GARMIN BE LIABLE FOR ANY INCIDENTAL SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES WHETHER RESULTING FROM THE USE MISUSE OR INABILITY TO USE THIS PRODUCT OR FROM DEFECTS IN THE PRODUCT Some states do not allow the exclusion of incidental or consequential damages so the above limitations may not apply to you Garmin retains the exclusive right to repair or replace the unit or software or offer a full refund of the purchase price at its sole discretion SUCH REMEDY SHALL BE YOUR SOLE AND EXCLUSIVE REMEDY FOR ANY BREACH OF WARRANTY To obtain warranty service contact your local Garmin authorized dealer Or call Garmin Customer Ser vice at one of the numbers shown below for shipping instructions and an RMA tracking number The unit should be securely packed with the tracking number clearly written on the out
50. the unit will display data Gain allows you to control the sensitivity of the units receiver This provides some flexibility in what is seen on the display To see more detail increase the receiver sensitivity by selecting a higher gain percentage If there is too much detail or if the screen is cluttered lowering the sensitivity may increase the clarity of the display Target Level adjusts which colors are used to display sonar information A Color Bar see pg 16 will appear on the right side of the screen as you adjust this setting A higher percentage will result in more strong signaled colors see pg 9 displayed on the Sonar Page A lower percentage will result in more weaker signaled colors see pg 9 displayed on the Sonar Page This setting does not increase decrease the unit Gain Unit Operation Adjustment Menu Options 2X Zoom View Sonar 2X Split Screen shown with Depth Line Bar represents area shown on 2X View Sonar View Adjustment 11 12 Unit Operation Adjustment Menu Options You may resize the split line to The current frequency setting will display at the bottom of the screen the left or right Whiteline controls how the unit displays information about the bottom type hard or soft With the Whiteline Off all high intensity bottom returns will display as red With Whiteline set at Normal or 1 100 this option can be used to better deter
51. u Alarms System Tab 17 Unit Operation System Tab Controls various system and interface settings The following settings are available Beeper controls audible beep Select from Off Alarms Only sounds for alarms messages or Main Menu Options Key and Alarm sounds for key presses and alarms messages e Language select from various languages for the units on screen display 307 e Simulator lets you simulate unit operation using a Depth Only Temp Only or Temp Speed en AAI Ls transducer While in Simulator mode a Running Simulator message will appear after 2 minutes Tools Key and Alarm of inactivity Choose No to the retail demonstration mode for normal consumer simulator use if Co English prompted If the unit does not detect a transducer it will automatically enter Simulator Mode ime Temp e NMEA Input Output controls the input output of NMEA 0183 version 2 3 data to from the unit Off e This setting must be On in order to receive GPS navigational data and send Sonar NMEA data See Factory Settings pages 3 4 for details on available NMEA sentences Software Version Factory Settings restores all settings to the original factory default values for the entire unit _ Reset Odometer Software Version displays the units software version and electronic serial number e Reset Odometer this will only ap
52. urrent Main Menu Options To calibrate the water speed 1 Use the ARROW KEYPAD to highlight Calibrate Water Speed and press ENTER 26 5 gv 2 Bring the boat to a cruising speed Both the top GPS ground speed and uncalibrated water speed will l re be shown at the bottom of the calibration window Note your top speed then stop the boat and press Unit Operation Bring the boat to ENTER sysi Cruising speed Note zs praedia 3 By default the top speed will automatically show in the What was your top water speed field If a Tim press ENTER ground speed is not available the top uncalibrated water speed will be used instead If the new speed is Cone NENLINEN correct highlight OK and press ENTER If you wish to manually enter a calibration press ENTER on the round pe hat See speed field enter a new speed and press ENTER If the boat is not moving fast enough or the speed sensor is not registering a speed you will see a Boat Is Not Moving Fast Enough To Calibrate message at the bottom of the display Check that the speed sensor wheel is moving or safely increase boat speed If there Calibrating the Speed Sensor is a problem with the speed sensor unit or if a speed senor is not installed a Water Speed Sensor Is Not Working message will appear at the bottom of the display Check connections of speed sensor
53. y damage the Mounting Stud The studs have a reusable thread locking patch pre applied from the factory 7 Place the unit in position in the cut out in the mounting surface 8 Place washers over the Mounting Studs then thread on one Hex Nut per Mounting Stud Tighten all four until the unit is snug against the mounting surface Install and tighten the second Hex Nut on all four Mounting Studs to lock the first one in place Connecting the Power Data Cable The power data cable connects the Fishfinder 320C to a 10 35 volt DC system and provides interface capabilities for connecting external devices The color code in the diagram pg 4 indicates the appropriate harness connections Replacement fuse is a AGC 3AG 2 Amp fuse If it is necessary to extend the power data wires use a wire of comparable size and keep your extension as short as possible If your boat has an electrical system it may be possible to wire the unit directly to an unused holder on your current fuse block If you are using the boats fuse block remove the in line fuse holder supplied with the unit If your boat does not have a fuse block the unit can be wired directly to the battery Make sure the 2 Amp in line fuse supplied with the unit is installed if connecting the unit direct to the battery Installing the Wiring Harness Basic 1 Determine the polarity of the fuse holder using a Test Light or Volt Meter 2 Install the Red wire on the Positive Fuse Holder
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