Onwa KF-667 Operator's Manual
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Onwa KF-667 Operator's Manual

Color video sounder
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MODEL KF-667
MODEL KF-667
Ë µ Ã ÷ Ê é
Ë µ Ã ÷ Ê é
OPERATOR`S MANUAL
COLOR VIDEO SOUNDER
KF-667
KF-667

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Summary of Contents for Onwa KF-667

  • Page 1 KF-667 KF-667 MODEL KF-667 MODEL KF-667 Ë µ Ã ÷ Ê é Ë µ Ã ÷ Ê é OPERATOR`S MANUAL COLOR VIDEO SOUNDER...
  • Page 2 A heater can melt the equipment’s power the equipment. cord, which can cause fire or electrical shock. Continued use of the equipment can cause fire or electrical shock. Contact a ONWA agent for service. Use the proper fuse. Do not disassemble or modify the equipment.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION 2.15 Alarms 2-12 2-14 2.16 White Marker PRINCIPLE OF OPERATION 3. INTERPRETING THE DISPLAY SYSTEM CONFIGURATION 3.1 Zero Line 3.2 Fish School Echoes 1. CONTROLS, INDICATIONS 3.3 Bottom Echo 1.1 Control Description 3.4 Surface Noise/Aeration 1.2 Indications 4.

  • Page 4: Introduction

    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.
  • Page 5 Alarms: fish, bottom, water temperature (requires appropriate sensor). Six pulse lengths for excellent performance on both shallow and deep ranges. Universal 12-24 VDC power supply drawing 30 W of power at maximum. Water temperature sensor optionally available.

  • Page 6: Principle Of Operation

    PRINCIPLE OF OPERATION This Color Video Sounder determines the distance between its transducer and underwater objects such as fish, lake bottom or seabed and displays the results on a 5.6-inch color screen. It does this by utilizing the fact that an ultrasonic wave transmitted through water travels at a nearly constant speed of 4800 feet (1500 meters) per second.

  • Page 7: System Configuration

    SYSTEM CONFIGURATION DISPLAY UNIT KF-667 Ship’s mains 12-24 VDC TRANSDUCER External equipment (GPS navigator, etc.) Temperature sensor (option)
  • Page 8 Transducer TD/Temp Temp GND Temp in Fuse(3A) Power NMEA-0183 input(RX+) DC12-24V NMEA-0183 input(RX ) NMEA-0183 output(TX+) NMEA-0183 output(TX ) 3.3V...

  • Page 9: Controls, Indications

    1. CONTROLS, INDICATIONS 1.1 Control Description The equipment is so designed that even a first time user can quickly become acquainted with the operating procedure. Operation of each control or key is acknowledged by an alphanumeric message or symbol indication on the screen. Control Function SHIFT-,SHIFT+...
  • Page 10 Change display start depth. Select options on menus. Adjusts brilliance of display. Pressing the BRILL + AUTO keys together. Selects display advancement speed. Pressing the SIG LEV + ALARM keys together. BRILL AUTO Turns the automatic sounder Displays the A-scope display adjustment feature on/off.

  • Page 11: Indications

    1.2 Indications Auto Mode Mode Noise Limiter Picture Advance Speed Signal Level Nav data* Speed* Water temperature Range scale Voltage Water temperature Alarm zone scale* marker Water temperature marker*(Color Variable range changes with marker(green) HUE setting.) w/depth readout Color bar All indications and markers are displayed in white unless...

  • Page 12: Basic Operation

    2.BASIC OPERATION 2.1 Turning the Power On/Off Turn the [MODE] switch clockwise to turn the power on. The unit starts with the settings used before it was turned off last time. To turn the power off, turn the switch fully counterclockwise. 2.2 Adjusting Brilliance Use the [BRILL] key to adjust the brilliance.

  • Page 13: Dual Frequency Mode

    2.3.2 Display mode description 200K, 50K (high frequency, low frequency) mode The sounder uses ultrasonic pulses to detect bottom conditions. The lower the frequency of the pulse the wider the detection area. Therefore, the 50KHz frequency is useful for general detection and judging bottom conditions, while the 200KHz frequency is useful for detailed observation of fish schools.
  • Page 14 ZOOM mode (high or low frequency) Three types of zoom displays are available: marker zoom, bottom-lock expansion, bottom zoom. The zoom mode to be used can be selected on the main menu with ZOOM MODE. This mode expands selected area of the normal picture to Normal full vertical size of the screen on the left-half window.

  • Page 15: Adjusting Gain

    2.4 Adjusting Gain The [GAIN] control adjusts the sensitivity of the receiver. Adjust it so that a slight amount of noise remains on the screen. Generally, use a higher gain setting for greater depths and a lower setting for shallower waters. Note: The [GAIN] control is inoperative when the automatic mode is active.

  • Page 16: Selecting Picture Advance Speed

    2.6 Selecting Picture Advance Speed The picture advance speed determines how quickly the vertical scan lines run across the screen. When selecting a picture advance speed, keep in mind that a fast advance speed will expand the size of the fish school horizontally on the screen and a slow advance speed will contract it. 1.Press the [BRILL] and [AUTO] keys together.

  • Page 17: Erasing Weak Echoes

    Operate the [RANGE] switch and the display shown below appears. Adjust the [RANGE] control again to select a basic range. RANGE: 30 Note:The [RANGE] switch is inoperative when the auto function is active. 2.7.2 Range shifting The basic range may be shifted up or down with the [SHIFT] keys ([+],[-]). Press a [SHIFT] key and the display shown below appears.

  • Page 18: Measuring Depth To A Fish School

    2.9 Measuring Depth to a Fish School The VRM (Variable Range Marker) functions to measure the depth to fish schools or other echo. 1.Press[ ]or[ ]to place the VRM on an echo. 2.Read the VRM range just above the VRM. 2.10 A-scope Display This display shows echoes at each transmission with amplitudes and tone proportional to their intensities, on the right 1/4 of the screen.

  • Page 19: Menu Operation

    2.11 Menu Operation The menu, consisting of the main menu and system menus, contains less often used functions which do not require frequent adjustment. 2.11.1 Menu selection 1.Set the [MODE] switch in the MENU1 position. NOISE LIMITER OFF 1 2 3 HUE SELECTION (1 - 7) GAIN ADJUST 200KHz...
  • Page 20 2.Set the [MODE] switch in the MENU2 position. 3. To go to page 2 of the system menu, select B/L RANGE with [ ] and press [ ] again. SYSTEM MENU SYSTEM MENU DEPTH : m ZOOM MARK : OFF SPEED : kt F/A LEVEL: WEAK MED STRG...

  • Page 21: System Menu

    2.11.3 System menu description Menu item Description System Menu DEPTH Selects unit of depth measurement; meters, feet, fathoms, passi/braza. ZOOM MARK Turns zoom range and expansion range markers on/off. F/A LEVEL Sets fish alarm level. WEAK: Alarm against weak to strong echoes. MED: Alarm against medium to strong echoes.

  • Page 22: Suppressing Interference

    2.12 Suppressing Interference Interference from other acoustic equipment operating nearby or other electronic equipment on your boat may show itself on the display as shown below. To suppress interference, do the following: 1.Select MENU1 with the [MODE ]switch. 2.Select NOISE LIMITER. 3.Press [+] or [-] to select degree of suppression desired.

  • Page 23: Selecting Background And Echo Colors

    2.14 Selecting Background and Echo Colors 1.Select MENU1 with the [MODE] switch. 2.Select HUE SELECTION. 3.Press [+] or [-] to select hue arrangement desired, referring to the table below. Hue options Hue Ho. Background color Echo color 7 colors, bottom reddish-brown Blue Blue 6 colors, bottom red...
  • Page 24 2.15.2 Activating/deactivating an alarm 1.Prees the [ALARM] key to display the alarm menu. BOTTOM BOTTOM ALARM ZONE: RANGE: FISH ALARM ZONE: RANGE: TEMP ALARM ZONE: RANGE TO SELECT ITEM. TO SET CONDITION. 2.Press [ ] or [ ] to select an alarm 3.Press [+]to select ON, IN or OUT.(For the water temperature alarm, select IN to get the alarm when the water temperature is within the alarm zone range, or OUT to get the alarm when the water temperature is higher than the alarm zone range.)

  • Page 25: White Marker

    2.16 White Marker The white marker functions to display a particular echo color in white. For example, you may want to display the bottom echo (reddish-brown) in white to discriminate fish echoes near the bottom. Note that the bottom must be displayed in reddish-brown for the white marker to function.

  • Page 26: Interpreting The Display

    3. INTERPRETING THE DISPLAY 3.1 Zero Line Zero line The zero line (sometimes referred to as the transmission line) represents the transducer`s position, and moves off the screen when a deep phased range is used. Shift 3.2 Fish School Echoes Fish school echoes will generally be plotted between the zero line and the bottom.

  • Page 27: Surface Noise/Aeration

    3.4 Surface Noise/Aeration When the waters are rough or the boat passes over a wake, surface noise may appear near the zero line. As surface turbulence is acoustically equivalent to running into a brick wall, the bottom echo will be displayed intermittently. Similar noise sometimes appears when a water temperature difference (thermocline) exists.

  • Page 28: Maintenance,Troubleshooting

    4. MAINTENANCE,TROUBLESHOOTING WARNING ELECTRICAL SHOCK HAZARD Do not open the equipment. Only qualified personnel should work inside the equipment. 4.1 Maintenance Regular maintenance is important for good performance. Following the recommended maintenance procedures will help keep your set in good working condition. 4.1.1 General checking Important points to be checked from time to time are tabulated below.
  • Page 29 4.1.3 Cleaning Keep the equipment clean and dry at all times. Dust or loose dirt should be wiped off with a soft, dry cloth. Do not use chemical cleaners to clean the display unit-they can remove paint or markings. 4.1.4 Maintenance of the transducer Marine life on the transducer face will result in gradual decrease in the sensitivity.

  • Page 30: Basic Troubleshooting

    4.2 Basic Troubleshooting The troubleshooting table below presents common problems and the means to restore normal operation. If normal operation cannot be restored do not attempt to check inside the equipment. Basic troubleshooting Then Neither echo nor fixed range scale appears check battery voltage.

  • Page 31: Transducer Check

    4.3 Transducer Check A simple and reliable check of the transducer is to temporarily replace the transducer with a new one. If the sensitivity is considerably improved through this change, the transducer is probably faulty. This method is especially useful for inside-hull or through-hull installation. Another method is to listen to the transmission sound.

  • Page 32: Menu Tree

    MENU TREE MENU1 MENU2 SYSTEM MENU NOISE LIMITER DEPTH : m OFF 1 2 3 ZOOM MARK : OFF HUE SELECTION F/A LEVEL: WEAK MED STRG (1 - 7) RANGE1: 15 GAIN ADJUST 200KHz RANGE2: 30 (-20 - +20) RANGE3: 60 GAIN ADJUST 50KHz RANGE4: 120 (-20 - +20)

  • Page 33: Specifications

    SPECIFICATIONS ON COLOR VIDEO SOUNDER KF-667 1.GENERAL 1 Display 5.6-inch TFT LCD 2 Echo Color 8 colors (including background color) according to echo intensity. Monochrome display is also available. The background color is selectable from blue, light blue, white and black. 3 Basic Range Meters 5/10/20/40/80/150/200/300 Feet 15/30/60/120/200/400/600/1000...
  • Page 34 2.POWER SUPPLY 1 Display Unit 12-24 VDC -10%,+30% : 1.0 - 0.6 A 3.ENVIRONMENTAL CONDITION 1 Ambient Temperature 0 to +50 2 Relative Humidity 85% at 40 3 Water proofing Display Unit:IPX4 4 Vibration 10%, 2(5) to 13.2Hz, Maximum acceleration 7 m/s , 13.2 to 100Hz 4.COATING COLOR 1 Display Unit Chassis: 2.5GY5/1.5...

  • Page 35: Index

    INDEX Aeration Indications Alarms Interference 2-11 activating 2-13 Marker zoom mode Menu bottom 2-12 fish 2-12 Menu1 silencing buzzer 2-13 Menu2 water temperature 2-12 Menu1 description A-scope display Menu2 description 2-10 AUTO key Menu tree Automatic operation MODE switch Background color 2-12 Noise limiter 2-11...

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Kf-1067

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