Furuno CH-250 manual

Page 109

•TRAIN shows a figure between 355-359 if normal. NG appears in case of train error.

•TEST COUNT shows the number of times the test has been consecutively executed.

•At the bottom of the screen there are two major groups of zeroes (0), and they represent the keys and controls on the control panel and remote controller. Press a key and its on-screen location shows “1” while the key is pressed and “0” when it is released. Operate a control and its on-screen location changes as below. When the [GAIN] control is operated the panel dimmer increases or decreases with adjustment of the control.

GAIN control: Shows 0-127.

Other controls: Shows 0-19.

To quit the test, press the [MENU] key three times.

6-7

Image 109

Contents Color LCD Searchlight Sonar 00080894802 Safety Instructions TFT LCD Table of Contents Menu Operation Foreword FeaturesUsage Precautions System Configuration Viii Control Description Operational OverviewRemote controller Remote ControllerPower on Turning the Power On/OffPower off Lowering the transducer Raising, Lowering the TransducerRaising the transducer Brilliance, panel dimmer dialog box Adjusting Screen Brilliance, Panel DimmerHorizontal Expanded Horizontal Selecting a DisplayBasic Menu Operation Adjusting the GainDialog box for deleting track Operational Overview Horizontal ModeColor Typical Horizontal Mode DisplaySelecting the Range One-touch selection of 360 sector Selecting Sector WidthSelecting the Tilt Angle Selecting Train CenterBottom echo and tilt angle How to discriminate fish echoes from the bottomCase1 Tilt angle 30 to Case2 Tilt angle 10 toPoints to consider Tilt angle for surface fishTilt angle and beam coverage Suitable tilt angleFinding Echo Position with the Cursor Selecting the Training SpeedInscribing the event marker Event MarkerDeleting all event markers Depth and Horizontal Range MarkersSuppressing bottom and surface reflections Adjusting the PictureDisplaying weak echoes clearly Suppressing bottom tailTo adjust TVG Erasing weak echoes Train center direction Position after expansion Remarks Enlarging fish echoes expand horizontal displayManual reserve mode Setting target lock modeTarget Lock To use the position mode Position modeAutomatic echo tracking mode Echo modeManual echo tracking mode Horizontal menu description Horizontal Menu OverviewLOG Interpreting the Horizontal Display How the horizontal mode picture is paintedBottom echoes Sample echo displaysBottom Fish schoolsWake Sea surface reflectionsNoise and interference Sidelobe echo false echoHorizontal/history display Combination display examples28 Horizontal/Video Plotter display Horizontal/video plotter displayPress the key to display the horizontal/strata display Horizontal/strata displayFlat bottom and strata display Color bar for the strata display31 Projection in fore direction and strata display Projection in fore direction and strata displayVertical FAN Mode AFT Typical Vertical Fan Mode DisplayRange concept Default vertical fan mode range settings Train indicator One-touch selection of 180 sector Selecting Display SectorAutomatic shifting of own ship position Selecting Sector CenterNAV 11 How to inscribe, delete the event markers 12 Depth and horizontal range markers 13 Vert menu 14 Examples of proper and improper TVG Suppressing noise and interferenceVertical menu description Vertical Menu OverviewInterpreting the Vertical Fan Display How the vertical fan mode picture is paintedPort-starboard picture bottom When ship passes over fish schoolsFalse echo Display of net haulingTrain control Horizontal/vertical fan displaySector control This page intentionally left blank Event Menu Echo Sounder ModePress the key to display the echo sounder picture Typical Echo Sounder DisplayRange concept Default echo sounder mode range settings Selecting Tilt Angle Train DirectionSelecting Picture Advance Speed Measuring Range by Cursor How to measure range with the cursorHow to inscribe, delete the event markers Range marker Range MarkerES menu A-scope display Finding echo strength A-scope displayEcho sounder menu description Echo Sounder Menu OverviewGeneral use This page intentionally left blank COM1 Menu Menu Operation1 COM1 menu description Displaying the COM2 menu COM2 Menu2 COM2 menu description Selecting short-cut or preset Short-cut Menu, Preset MenuSystem menu Activating custom mode Preset keyActivating a short-cut key Short-cut keyVertical Search Function SYS Menu System SettingSystem Setting 1 menu description System Setting 1 menu10 ETA marker Default Setting YES System Setting 2 menu descriptionTransducer being lowered 12 Factory Setting menu 13 Range-sonar mode menu Sonar horizontal mode range settings14 Range-ver mode menu Vertical fan mode range settings15 Range-E/S mode menu Echo sounder mode range settings16 Range-track mode menu Track range settings17 Color palette Color paletteLoading backup data System backupLanguage Demonstration mode Transducer frequency adjustment23 Default menu Restoring all default settingsPreventive Maintenance MAINTENANCE, TroubleshootingCleaning the Equipment Lubrication Hull Unit MaintenanceManually raising, lowering transducer Fuse Replacement Transducer MaintenanceSymptom Check, Remedy TroubleshootingMessage Meaning, Remedy Hull Unit Error MessagesLED Exit DiagnosticsPage Test pattern Test PatternScope OFF, on Menu TreeFrom Previous Specifications of 10.4 Inch Color LCD Searchlight Sonar Transceiver Unit Interface This page is intentionally left blank AGC IndexIN-2

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