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Turning on or off display of the A-scope 

 
This function is used for displaying the fish image in A-scope so that you may quickly identify 
movement of the target fish. 
 
 
 
 
 
 
 

Display in A-scope 

 
 
 
 
 
 
 

Press to display the word 

A-SCOPE

 

in right side of the screen. 

 
 
 
 
 
 

Deleting the A-scope

      Press the                  key once. 

 
 
 
 
 
 

Measuring depth by VRM (green) 

 
By moving the VRM (green) up and down to a target, such as a school of fish on the screen, the depth 

of the target can be obtained. 

 

VRM 

Measured depth

Presented depth

 
 
 
 

VRM (green) 

 
 
 
 
 
 
 
 
 

Press either  or  arrow to 
display the word 

VRM

 and its 

depth setting on the screen. 

While the word is indicated again, 
press either 

sa

or  arrow repeatedly 

to measure the target depth. 

 
 
 
 
 
 
 
 
 
 
 
 

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Summary of Contents for CVS-118Mk II

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Page 4: ...Off the enlarged Character Display 14 3 Deleting interferences from other boats 14 4 Displaying the white line on the bottom surface 14 5 Eliminating undesired colors 15 6 Specifying a depth for the bottom detection 15 7 Changing the output pulse width 15 OPERATION MENU 2 3 16 1 Selecting a color tone for the image display 16 2 Changing the background color 16 3 Turning on or off the alarm and sel...

Page 5: ...els from point A to point B as shown in Figure 1 the beam of the transducer installed on your boat shows a cross sectional view in the water Figure 2 indicates a cutaway view under the water when your boat moves from point A to point B The screen shows the latest scan data at its right position After the next scan the previous data is moved to the left and the latest scan data is shown at the righ...

Page 6: ... serial no 10 8 to 31 2 VDC Power connector 2 pin SER DATA GPS Loran C navigator 6 pin BUZZER STD Standard transducer connector 3 pin Do not connect the transducer cable to both the STD and TRI connectors otherwise malfunction may occur Fuse 3A Note Refer to Connector plug pin assignment page 21 2 0093132312 0093132314 ...

Page 7: ...hing on MANUAL RANGE selection 1 2 3 Turning Power on Press ON to turn the power on 200kHz 50kHz Depth Unit m ROM No KM E23 SELF CHECK COMPLETED After 15 seconds image comes out from the right end of the screen POWER OFF Hold down the OFF side the key unit display on the screen disappears Adjusting screen brightness LCD BRIGHTNESS LCD While the word is indicated press repeatedly to a desired scree...

Page 8: ...n being set on the other is also reset GAIN Control by Frequency Level GAIN level Pressing the key increases the gain in 20 steps from the lowest to the highest level If you keep on pressing the key after the highest level is reached the gain returns to the lowest automatic gain level as shown below AUTOGAIN Minimum 1 Maximum 20 AUTOGAIN AUTOGAIN Constantly provides an optimum echo color display W...

Page 9: ...cated press either saor arrow repeatedly to select best suited shift position Shifting the depth range Pressing the SHIFT key sequentially switches the shift value by one unit when the metric unit is employed pressing the key once increases or decreases the value by 1 meter When you move into the fixed shift from the auto shift however shifting starts from the value being set in the auto shift mod...

Page 10: ...imination Normal Pressing both sides of the key alternately selects the high and low frequency for the display Switching between the bottom lock and bottom discrimination This switching is available from the INITIAL MENU 1 2 BTM B D SELECTION Switching Between the Vertical and Horizontal Screen Split This switching is available from the INITIAL MENU 1 2 DISP LAYOUT 6 0093132312 0093132314 ...

Page 11: ...e bottom lock and bottom discrimination image This switching is available from the INITIAL MENU 1 2 BTM B D SELECTION ZOOM RANGE mark The zoom range is indicated by an orange bar Presented zoom range ZOOM RANGE Selected zoom range Bottom lock image Bottom discrimination image Zoom image Press to display the word ZOOM RANGE and its setting While the word is indicated press repeatedly to select zoom...

Page 12: ... select zoom position Pressing the key sequentially changes the zoom position as shown below Top of the normal screen Zoom position is moved toward the sea bottom by 1 8 of the depth range Bottom of the zoom range comes to the bottom of the normal screen Relationship between Zoom Range Zoom Position and Depth Range Shift Changing the depth range or shift position does not change the zoom range or ...

Page 13: ...n Deleting the A scope Press the key once Measuring depth by VRM green By moving the VRM green up and down to a target such as a school of fish on the screen the depth of the target can be obtained VRM Measured depth Presented depth VRM green Press either or arrow to display the word VRM and its depth setting on the screen While the word is indicated again press either saor arrow repeatedly to mea...

Page 14: ...s also recalled in green numerals and words on the screen by pressing the EVENT key again Storing Recalling Press to display the words SET EVENT on the screen and the event data is stored in the memory The stored data is displayed in the lower left corner of the screen Press to remove the data from the screen For recalling the data press the key again Storing new event data You can store only a si...

Page 15: ...ding key Each item on the screen can be operated by the right or left portion of each corresponding key Selection is shown by yellow character Returning to display mode Press to return to graphic screen Opening INITIAL MENU 1 2 hr Following operations are available from the Initial Menu 1 2 1 Selecting unit of measure 2 Selecting the bottom zoom 3 Matching to the boat draft 4 Switching the split s...

Page 16: ...ature data source 5 Correcting the displayed water temperature 6 Selecting the input data format 7 Selecting the gain type Correcting the sonic velocity A true depth of water can be distorted by water temperature or salt concentration at the time of measurement In such case you can use this function to correct the measurement and display the known depth SONIC CORR 7 2 0 Selecting a boat speed data...

Page 17: ...I connector you can correct currently displayed water temperature data Selecting an input data format When acquiring data from the GPS navigation system or electronic compass via the SEA DATA connector input data must have one of the following formats FORMAT 0182 0183 COMPASS 0182 Acquires data on the current position latitude and longitude in the NMEA0182 format 0183 Acquires data on the current ...

Page 18: ...on panel when required Turning the enlarged character display provides enlarged display of your current boat position bearing of your boat boat speed trip mileage and water temperature 3 Deleting interferences from other boats If nearby boats use a fish finder of the same frequency and emission rate interfering images may appear on the screen as shown in the figure below This function allows you t...

Page 19: ...nction avoids mistaken bottom from schools of fish by setting the inhibit depth for bottom detection BOTTOM START 1m 7 Changing the output pulse width PULSE WIDTH S M L You can specify output pulse width from the Short Medium and L S Short Selecting the Short increases the fish image resolution though it reduces the maximum usable depth for fish finding M Medium Fish image resolution and fish find...

Page 20: ... is too bright in the night time operation 3 Turning on or off the alarm and selecting the bottom or fish alarm TONE OF COLOR 16 8 BACKGROUND D L Display when selecting the FISH alarm 16 8 BACKGROUND BLACK BACKGROUND D L BACKGROUND D L BACKGROUND D L BACKGROUND D L BACKGROUND WHITE ALARM SEL OFF BTM FISH OFF The alarm function is not available BTM Bottom The alarm is activated if the bottom moves ...

Page 21: ...rm is turned on S M L S M L Setting the bottom alarm Specified alarm markers red Upper depth limit selected for the alarm Lower depth limit selected for the alarm The alarm sound is turned on at this point Specified alarm markers red A selected alarm range must sufficiently cover the range in which the depth of the bottom changes Setting the fish alarm Specified alarm markers red The alarm sound i...

Page 22: ...P Before the measurement you need to specify the unit of the speed Switching between the internal and external data is done from the INITIAL MENU 2 2 SPEED DATA SPEED DISP OFF kmh mph kt 4 Selecting unit of water temperature Temperature of water surface can be displayed when the water temperature sensor is connected or water temperature data is externally available Switching between the internal a...

Page 23: ...mal or auto range S Shift or auto shift range B Bottom lock B D Bottom discrimination B Z Bottom zoom Z Zoom Vertical or horizontal split screen display is available on the above modes MENU A scope or navigational data display is available in all the above modes except the INITIAL MENU mode The INITIAL MENU mode is provided for setting initial and other functional parameters Image display area Ver...

Page 24: ...50kHz 200kHz Material zinc bronze For through hull 1 5kg 9m 1 Options Article Type Remarks Weight length ST 80 Installing the transom plastic type with cable and connector 0 3 kg ST 90 Installing the thru hull plastic type with cable and connector 0 58 kg TEMP SPEED sensor ST 100 Installing the thru hull bronze type with cable and connector 1 16 kg CW 153A With 6 pin connectors 5 m CW 155 With 6 p...

Page 25: ...efer to Name page 2 The functions and pin assignment viewed from cable side are specified below 10 8 31 2VDC Power Input 10 8 to 31 2VDC 1 LINE Red wire 2 LINE Black wire SER DATA Serial data Navigator 1 SHIELD 2 SER OUT SIG 3 SER OUT RTN 4 SER IN SIG 5 SER IN RTN 6 NC No connector TRI TRI Transducer with TEMP SPEED sensor 1 SPD PULSE 2 SPD Vcc 3 TD1 4 TD SHIELD 5 TD2 6 TEMP Vcc 7 TEMP SIG 8 SPD G...

Page 26: ...ast W West Sentence name Talker device Start of sentence Talker device code Sentence name Latitude GNS GNNS fix data Ver 1 5 2 0 GTD Loran C Geographical Position Ver 1 5 HDM Ship s heading Magnetic bearing Sentence name Checksum GNS hhmmss ss lllll lll a yyyyy yyy a c c xx x x x x Start of sentence Talker device code UTC of position fix hr min sec Latitude N S Longitude E W Mode indicator NN Fix ...

Page 27: ...r more Higher than 4V Lower than 0 5V Data bit ASCII code Output data specifications Baud rate Output level Output current Output sentences included Update rate 4800 baud TTL 5mA max DBS MTW VHW DBT DPT GGA 4 6 seconds The GGA sentence is output only when input from external equipment Details of output sentences Description Contents of data field Checksum All data before the asterisk except charac...

Page 28: ...ansducer offset surface to the bottom Ver 2 0 MTW Water temperature Ver 1 5 VHW Water speed and ship s bearing SD MTW xx C hh CR LF Sentence name Talker device code Temperature C Start of sentence Checksum Ver 1 5 SD VHW xxx x T xxx x M xxx x N xxx x K hh CR LF Sentence name Start of sentence Talker device code Ship s bearing o True Bearing Ship s bewaring o Magnetic Bearing Ship s speed knt Ship ...

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