Furuno CSH-5L/CSH-8L manual Error Messages, Message Meaning, Remedy Overvoltage, High speed

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8. MAINTENANCE, TROUBLESHOOTING

8.7Error Messages

The table below shows the error messages which may appear on the display. All error messages are accompanied by the audio alarm, which you may silence with the [R/B] key.

Error messages

 

Message

Meaning, Remedy

 

 

Overvoltage

 

 

 

OVERVOLTAGE

Excessive voltage detected. The message

 

 

RETRACT TRANSDUCER AND TURN OFF

flashes and the audio alarm sounds. Retract

 

 

POWER. PRESS [R/B] KEY TO CLEAR

the transducer and then turn off the power.

 

 

ALARM.

 

 

Press the [R/B] key to silence the audio

 

 

 

 

 

 

alarm. Have a technician check the set.

 

 

Transducer not retracted

 

 

 

TRANSDUCER NOT RETRACTED

If the transducer is not retracted into the

 

 

CUT OFF POWER LINE TO PROCESSOR

tank in approx. 35 seconds after the [↑] key

 

 

AND POWER SUPPLY. PRESS [R/B] KEY TO

is pressed, the message flashes and the

 

 

CLEAR ALARM.

audio alarm sounds. Press the [R/B] key to

 

 

 

silence the audio alarm. Raise the

 

 

 

transducer manually, following paragraph

 

 

 

8.3.2.

 

 

High speed

 

 

 

WARNING

Ship’s speed is higher than 16 knots when

 

 

MAX ALLOWABLE SPEED FOR EXTENDED

you attempted to lower or retract the

 

 

TRANSDUCER IS 16 KT. MAX ALLOWABLE

transducer. The message flashes and the

 

 

SPEED DURING RAISING/LOWERING

audio alarm sounds. Press the [R/B] key to

 

 

TRANSDUCER IS 16 KT. PRESS [R/B] KEY

silence the audio alarm. Reduced speed to

 

 

TO CLEAR ALARM.

less than 16 knots, and the previously used

 

 

 

display appears.

 

 

 

If you attempt to lower the transducer when

 

 

 

the speed is higher than 16 knots the

 

 

 

message flashes and the audio alarm

 

 

 

sounds. (The transducer is neither raised

 

 

 

nor lowered.)

 

 

WARNING

Ship’s speed is higher than 18 knots with

 

 

TRANSDUCER IS KEPT EXTENDED

the transducer extended. The message

 

 

REDUCE SHIP'S SPEED AND PRESS ↑ TO

flashes and the audio alarm sounds. Press

 

 

RETRACT TRANSDUCER. ACTIVATING

the [R/B] key to silence the audio alarm.

 

 

AUTOMATIC RETRACTION. PRESS [R/B]

Lower speed below 18 knots, and the

 

 

KEY TO CLEAR MESSAGE.

previously used display appears.

 

 

 

 

 

Automatic retraction

 

 

 

ACTIVATING AUTOMATIC RETRACTION

Transducer is being retracted because ship

 

 

PRESS [R/B] KEY TO CLEAR MESSAGE.

speed set for automatic retraction has been

 

 

 

reached. (The message appears if AUTO

 

 

 

RETRACT in the SYSTEM menu is turned

 

 

 

on.) Press the [R/B] key to clear the

 

 

 

message.

 

8-6

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Contents Color Scanning Sonar 00080940402 Safety Instructions Turn off the hull unit before using the hand crank Table of Contents Marks and Data Index Foreword FeaturesWord to the Owner of the CSH-5L/CSH-8L System configuration of CSH-5L System ConfigurationVii System configuration of CSH-8L ViiiControl Unit Operational OverviewControl unit Remote Controller option Remote controllerTurning on the power Basic Operating ProcedureLowering the transducer Transmitting Sonar menuAdjusting backlighting of control unit System menuChoosing a display mode Mode description Description DisplayNorm COMBI-1Normal mode display sonar display Sonar displayCOMBI-1 display sonar display + audio display COMBI-1 display sonar display + audio displayChoosing the display range COMBI-2 display sonar display + echosounder displayCOMBI-2 display sonar display + echosounder display Detection rangeRetracting the transducer, turning off the power Adjusting the gainExamples of proper and improper gain Automatic tilt on/off Setting the Tilt AngleTilt range Range m ±2-10 ±4-14 ±6-20 ±10-26 Range and tilt angleAuto tilt concept How to discriminate fish echoes from the bottom Bottom and tilt angleCase 1 Tilt angle 30 to 40 degrees Case 2 Tilt angle 10 to 20 degreesTilt angle for surface fish Points to considerTilt angle and surface fish example CSH-5L Finding Range and Bearing to a Target Suitable tilt angleDepth, detection range and tilt angle Location of trackball dataOperating procedure Sonar Menu OverviewDescription of sonar menu Sonar menu descriptionDescription Ref. Description of sonar menu con’t from previous This page intentionally left blank Eliminating Unwanted Echoes Fine Tuning the Sonar PictureHow TVG works Suppressing Bottom Tail Displaying Surface Fish Clearly1 AGC Pulse length 3 2ND AGCHow to adjust TX output Rejecting Sonar Interference and Noise Identifying noise sourceRejecting noise with the interference rejector Rejecting noise with the noise limiterRejecting interference with TX cycle Interference ringsChoosing Beamwidth Deleting Weak EchoesEcho Averaging Horizontal beamwidthThis page intentionally left blank Tracking a Fish School target lock Advanced Sonar OperationTarget lock mark and target lock data Target lock and tilt angle Detecting Fish Schools Aurally Fish alarm zone Fish AlarmFish alarm zones Entering a fish mark Measuring Fish School SpeedFish mark and fish mark data Relocating Fish School for Easy Observation How to use the off-center functionDeleting individual fish marks How to use the event mark Event Mark, Own Ship Position MarkEvent mark Entering an event markDeleting an event mark Entering an own ship position markEvent marks Track Collectively Deleting MarksShip Function Keys F1-F4 Operating the function keysProgramming for fishing ground or target fish Erase Marks dialog boxProgramming specific function Useful programs main items onlyTX Output Pulse Length TX Cycle TVG Near TVG FAR HOR Beamwidth Color Curve ResponseConfirming function key program Function key assignment confirmation screenHow the stabilizer works Suppressing Effects of Pitching and Rolling StabilizerStabilizer mark Advanced Sonar Operation Choosing the Range Echosounder ModeDisplay range and shift concept Adjusting the Gain Sounder menuMeasuring Depth Picture Advance SpeedMeasuring depth Suppressing Interference Suppressing Low Level NoiseInterference ClutterErasing Weak Echoes Weak echoesOther Items on the Sounder Menu Sounder menu descriptionCurve DraftMarks and Data on the Normal Display Marks and DataMarks and data on the normal display Description of marks and data on the normal display Points to North Heading MarkMarks and Data Press the R/B key. Own ship position and trackball mark are Marks and Data on the Echosounder and Audio Displays Marks and data on the echosounder and audio displaysOn the System menu Bottom Echo Interpreting the DisplayBottom echoes Fish School Fish echoesSea Surface Reflections WakeSea surface reflections WakeFalse Echo by Sidelobe Noise and InterferenceSidelobe echo Noise and interferenceMarks Menu Marks and System MenusMarks menu Marks menu description System Menu System menu Description of System menuDimmer Disp SelectDescription of System menu con’t from previous General Maintenance MAINTENANCE, TroubleshootingCleaning the Equipment Hull unit maintenance points Hull Unit MaintenanceLubrication points, zinc plate Hull unit Manually raising the transducerHand crank Fuse Replacement Fan ReplacementUnit Fuse Type Code No Type Code NoTroubleshooting Symptom Check, RemedyError Messages Message Meaning, Remedy OvervoltageTransducer not retracted High speedDiagnostic Tests Choosing a diagnostic testSingle test, Continuous test Description of diagnostic testsContinuous test example CSH-5L, 55 kHz transducer Panel test Panel testColor test White RED Green BlueColor test Pattern testSIO test SIO testEcho tests Echo testsSpecifications of Color Scanning Sonar CSH-5L/8L Hull Unit Interface This page is intentionally left blank Menu Tree Sonar menuSounder menu AP-1System menu Marks menuAP-2 Index IN-1

CSH-5L/CSH-8L specifications

Furuno CSH-5L and CSH-8L are advanced marine radar systems known for their cutting-edge technology and user-friendly interfaces. Designed primarily for maritime applications, these radar units cater to a wide range of vessels, from commercial ships to fishing boats. The primary distinguishing feature of the CSH-5L and CSH-8L radar systems lies in their ability to provide high-resolution images and precise detection of targets, ensuring navigational safety and operational efficiency on the water.

One of the standout technologies incorporated into both models is the pulse compression technique. This feature significantly enhances target resolution and minimizes blind spots, allowing the radar to detect smaller objects at greater distances. With the CSH-5L and CSH-8L's powerful signal processing capabilities, users can expect exceptional performance even in challenging weather conditions, ensuring reliable operation during storms or fog.

The CSH-5L model operates at a frequency range of 5 GHz, while the CSH-8L uses an 8 GHz frequency. Both radars are equipped with a rotating antenna that provides a wide coverage range, allowing for efficient monitoring of the surrounding marine environment. Their high sensitivity and low noise levels enhance target detection, making them particularly useful for locating small fishing vessels or buoys.

Another important characteristic of the Furuno CSH-5L and CSH-8L is their user-friendly interfaces. Both models feature intuitive controls, allowing operators to adjust settings easily and access critical information quickly. The displays are designed for clarity, enabling users to distinguish between targets and navigate effectively.

Additionally, the radar systems include advanced features such as automatic target tracking and target acquisition capabilities. This functionality allows users to monitor multiple targets simultaneously, providing essential situational awareness for safe navigation. The CSH-5L and CSH-8L also support integration with other onboard systems, including ECDIS (Electronic Chart Display and Information System), which enhances the overall effectiveness of maritime navigation.

In summary, the Furuno CSH-5L and CSH-8L radar systems represent the forefront of marine radar technology, offering exceptional detection capabilities, user-friendly controls, and robust integration options. Their advanced features ensure that mariners can navigate confidently, making them a vital asset for anyone operating in the marine environment.
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