Furuno CSH-53 manual Overvoltage Warning, Unretracted Transducer Warning

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WARNINGS

Overvoltage Warning

If the input voltage to this unit rises above 125 VAC, the over- voltage detection circuit activates, an alarm sounds and the mes- sage OVERVOLTAGE appears at the screen center.

If this occurs, retract the transducer, turn the power off and check the ship’s mains voltage. It should be about 100 VAC.

Unretracted Transducer Warning

If the transducer is not completely retracted within 30 seconds after pressing c, an alarm sounds and the message XDCR NOT RETRACTED! appears at the screen center.

If this occurs, do the following:

1.The power cannot be turned off because the transducer can- not be retracted. Turn off the main breaker for the display and power supply units to stop operation.

2.Confirm that the net is not tangled in the transducer.

3.Confirm that the breaker inside the raise/lower control box (mounted on the hull unit) is on.

4.Remove the cover of the raise/lower control box. Push the (Red) reset button to reset the raise/lower control box.

5.Turn on the power and press cto retract the transducer into the tank. If it does not retract, the main shaft of the hull unit may be bent. Turn off the power and manually raise the trans- ducer up to the highest position by using the hand crank. (See the illustration on the next page.)

12-1

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Contents Color Scanning Sonar 00080807301 Safety Instructions Table of Contents Iii Self Tests Foreword System Configuration Control Description Main panel control description Main PanelControl Function END Sub PanelSub Panel 2 data setting window Main Setting Description Normal Main Setting Description Normal Sub Range + + Remote Control BoxAdjusting Screen Brilliance, Control Panel Backlighting Turning the Power On/OffOperational Overview Lowering the TransducerDisplay mode description Selecting a Display ModeSelecting a Display Range Setting the Tilt AngleSeabed echo and tilt angle Points to consider How to discriminate fish echoes from the seabedTilt angle and sea surface reflections Tilt angle for surface fishTilt angle and beam coverage Suitable tilt angleMeasuring Range and Bearing to a Target Adjusting the GainThis page is intentionally left blank How to adjust TVG Fine Tuning the PictureEliminating Unwanted Feeble Echoes Page Pulselength data setting window TVG TX, PL AGC data setting window SIGNAL, Signal2AGC data setting window SIGNAL, Signal Process Suppressing Seabed TailRejecting Sonar Interference and Noise Data setting window TVGTX, OutputIdentifying noise source Cycle Changing Tx cycle data setting window TvgtxNoise limiter data setting window SIGNAL, Signal Process Setting F-shift data setting window SonrbeamNormal display mode Marks, Data and Display ModeMarks and Data Echo sounder combination display Normal display mode w/textHistory display Permanently Displayed Marks and DataErasable Marks and Data Bearing marker Range marker Mark Description Range R Auto Tilt ± Auto Scan ± Gain Brill TVG TVG DIM This page is intentionally left blank User Menu Operation Menu OverviewUser Menu Hist DSP/GRPH Menu screen location and display modeUser menu description User Menu DescriptionCurrent VEC System menu can be displayed by pressing Menu + c System Menu DescriptionMenu Description ES/NET REC Data SET menu can be display by pressing Menu + d Data SET Menu DescriptionMenu NET Shoot Init SET/TEST menu can be displayed by pressing Menu + on Init SET/TEST Menu DescriptionDefaults Programming the Function Keys Function KeysReplaying a Function Key Function Key Fine TuningReplaying Function Key Settings from a Memory Card Saving Function Key Settings to a Memory CardThis page is intentionally left blank Advanced Level Operation How to find fish school centerFinding Fish School Center Tracking a fish school Tracking a Fish School target lockTarget lock mark appearance Choosing target lock modeErasing target lock mark Target lock and tilt angle Tracking target lock markSystem Menu Target Lock Setting target lock conditionsDescription of target lock items Detecting Fish Schools Aurally How to set the fish alarm zone Fish AlarmRelocating Fish School for Easy Observation How to relocate fish schoolsEstimate marks and their data Comparing of Fish School ConcentrationMeasuring Fish School Speed How to measure fish speed10 Event marks Event MarkErasing an event mark Entering an event mark12 True motion display True Motion Display13 Net location mark Plotting Net Location Mark14 Net behavior Observing Net BehaviorReducing Sea Surface Reflections Boosting Tx PowerThis page is intentionally left blank Port/Starboard display PORT/STARBOARD, Horizontal Slice DisplaysHorizontal slice display Horizontal slice displayInitializing Memory Cards SAVING, Replaying PictureTransferring Echo Data from Internal Memory to Memory Card Saving the PictureSaving Net Shooting Data Net shooting data contentsHow net shooting data is saved Transferring net shooting data to memory cardReplaying Saved Data Deleting Memory Card ContentsTurning MARKS, Data ON/OFF Turning marks on/off through the data setting windowTurning marks on/off through the user menu This page is intentionally left blank Seabed Echoes Interpreting the DisplayMidwater, bottom fish Tilt angle 30 or more Fish SchoolsWake Sea Surface ReflectionsNoise and Interference False Echo by SidelobeUnretracted Transducer Warning Overvoltage WarningRaise/Lower Control Box of the Hull Unit Self Tests Single test Self Test DescriptionContinuous test Color test Panel testSIO test Gray testInterface unit CS-120A, cover opened Interface Unit CS-120A Self TestThis page is intentionally left blank Selection of Data on Interface Unit CS-120A Input Data SelectionHow to set net sonde transmitter distances Setting Distances Between Net Sonde TransmittersMaintenance Zinc block near the transducer must be replaced yearly Hull Unit MaintenanceReplacement of Fuse, Memory Card Battery 15-4 User Menu Menu TreeData SET Menu Init SET/TEST Menu System Menu Previous This page is intentionally left blank General SpecificationsDisplay Environmental Condition 12-7 Index