Garmin 240 50

GARMIN International, Inc.

1200 East 151st Street, Olathe, Kansas 66062, U.S.A.

GARMIN (Europe) Ltd.

Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey, SO51 9AQ, U.K.

GARMIN (Asia) Corporation

No. 68, Jangshu 2nd Road, Shijr, Taipei County, Taiwan

www.garmin.com

Part Number 190-00155-10 Rev. A

Contents

Page Page Introduction Customer Service Product Registration Limited Warranty Packaging and Accessories Table of Contents Installation Unit Operation Using the Adjustment Bar Setup Menu On the Water Appendix What can the Fishﬁnder Display Water Depth Battery Voltage Water Temperature Transducers Installation Selecting a Transducer Mounting the Transducer Transom Mount Installation In-hullInstallation Selecting a Location Testing the Location Installing the Transducer Trolling Motor Installation Mounting the Transducer: Wiring Harness Installation Wiring to a Fuse Block Installing the Wiring Harness: Installing the Wiring Harness Fishﬁnder Wiring Harness Installation (continued) Display Installation (Surface Mount) Surface Mounting the Display: Installing the Display Display Installation (Flush Mount) Flush Mounting the Display: Testing the Installation Testing the Installation Unit Operation Keypad Function Arrow Keys Enter Key Enter Describing The Display The Adjustment Bar Using the Adjustment Bar Range To select a Range: Setting the unit to automatically track the bottom: Zoom To change the zoom scale: View To change the view: To have the unit automatically set a view: Gain To change the Gain: Setup Menu To Change the Whiteline Setting: Scroll Speed To Adjust the Scroll Speed: Scale To Change the Scale Setting: Tools To Change the Noise Reject Setting: ENTER Flasher To Turn the Graphic Flasher On and Off: Simulator Numbers To Set the Temperature Display Field: To Set the Speed Display Field: Alarms Deep Water Activating/Deactivating the Deep Water Alarm: Setting the Deep Water Alarm Depth: Setting the Battery Volts Alarm: System Calibration Units Memory Understanding Sonar Transducer Coverage Transducer Coverage Understanding the Chart Understanding the Chart Page Thermoclines Simulator Mode To Select a Speciﬁc Transducer: Simulator Mode OnAppendixthe WaterA Speciﬁcations Physical Power Performance Alarm Messages and Icons OnAppendixthe WaterB Messages and Alarms Fishfinder 240 Portable Batteries Installing the D-CellBatteries: Installing a Gel Cell Battery: OnAppendixthe WaterD Index