Onwa KF-667 manual Introduction, Features

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INTRODUCTION

Congratulations on your choice of the ONWA KF-667 Color Video Sounder. We are confident that you will enjoy many years of operation with this fine piece of equipment.

The KF-667 is just one of the many ONWA developments in the field of echo sounding. The compact, lightweight but rugged unit is easy to install and operate and is suitable for both fresh and saltwater applications.

This unit is designed and constructed to withstand the rigors of the marine environment. However, to obtain optimum performance from this unit, you should carefully read and follow the recommended procedures for operation and maintenance. No machine can perform to the utmost of its ability unless it is installed, operated and maintained properly

We would appreciate feedback from you, the end-user,about whether we are achieving our purposes.

Thank you for considering and purchasing ONWA equipment.

Features

The KF-667 dual-frequency(50KHz and 200KHz)color video sounder has a large variety of functions, all contained in a splash-proof rugged plastic case that is compact to fit small boats.

The principal features of the KF-667 are

User-friendly design for simplified operation.

A wide variety of display modes: bottom-lock expansion, marker zoom and unique bottom zoom displays.

Potent 300 W transceiver.

8-color presentation(including background) on a 5.6 diagonal TFT LCD, providing vivid presentation of underwater conditions.

AUTO function permits unattended range and gain setting operations. The range scale and gain change automatically so that the bottom is displayed in reddish brown or red on the lower half of the screen.

A-scope display gives excellent bottom fish discrimination, vital for bottom trawler and lobster/crab potter.

Digital and analog displays of navigational data.

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Contents Model KF-667 Safety Instructions Table of Contents Features IntroductionPage Principle of Operation System Configuration Display UnitTransducer PowerTD/Temp CONTROLS, Indications Control FunctionBrill Indications VoltageTurning the Power On/Off Adjusting BrillianceDisplay Mode Selection, Description Display mode selection200K, 50K high frequency, low frequency mode Display mode descriptionDual frequency mode Zoom mode high or low frequency Marker ZoomAdjusting Gain Automatic OperationHow it works Enabling automatic operationDisplay Range Selection Selecting Picture Advance SpeedBasic range selection Erasing Weak Echoes Range shiftingMeasuring Depth to a Fish School Scope DisplayMenu Operation Menu selectionMain menu description System MenuSystem menu description Menu item Description System MenuSuppressing Interference Suppressing Low Level NoiseAlarm description AlarmsSelecting Background and Echo Colors Activating/deactivating an alarm Silencing the buzzerWhite Marker Interpreting the Display Zero LineFish School Echoes Bottom EchoSurface Noise/Aeration MAINTENANCE,TROUBLESHOOTING MaintenanceReplacement of fuse General checkingCleaning Maintenance of the transducerBasic Troubleshooting Basic troubleshootingWater Temperature Sensor option Check Transducer CheckMenu Tree MENU1Specifications on Color Video Sounder KF-667Power Supply Index