background image

 

 

 
 
 
 
 
 
 
 
 
 
 

2

Pixel Size

Press 

 

key. [MENU 1] is shown. 

Select “PIXEL SIZE” with 

 

of cross key. 

 

Select size of pixel with 

 

key. 

S :

 

 

Fine image is shown. 

L :

    Image is shown with emphasis.

 

 

1

It changes size of one pixel (dot) which is shown. 
PIXEL SIZE : S, L

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

AUTO GAIN 

2

Press 

 

key. [MENU 1] is shown. 

Select “AUTO GAIN” with 

 

of cross

key. 

 

Select with 

 

key. 

L

: Sensitivity decreases. When you judge

 

status

of bottom, it helps you to confirm second or
third reflection 

M

: Sensitivity medium. It helps you to watch the

display as general fish finder.

 

H

: Sensitivity increased. It helps you find the

small fish. 

1

Sensitivity is automatically adjusted so that response from sea bottom is even. 
AUTO GAIN: OFF, L, M, H

 

 

Auto Gain

 
 
 
 
 
 
 
 
 
 
 
 
 
 

AUTO RANGE 

2

Depth range (displayed range) is automatically changed so that sea bottom (the first
reflection) is always shown. [AUTO] mark is shown on right lower of screen. 

Press 

 

key. “MENU 1” is shown. Select 

“AUTO RANGE” with 

  of cross key. 

 
 

Select with 

 

key.  

1

It sets ON/OFF of Auto Range (Automatic displayed range change).     
AUTO RANGE

OFF 

 

ON

AUTO RANGE 

19 

Summary of Contents for HE-51C

Page 1: ......

Page 2: ...rong operation Do not reproduce a part or all of contents described on this manual without our approval Please understand that the unit may differ from contents described on this manual partially due...

Page 3: ...nside hull installation 8 4 2 4 Installation in the fish reserve 9 4 2 5 Installation on the transom 10 4 2 6 Installation on transducer Thru Hull 10 4 3 Installation of water temp sensor option 11 4...

Page 4: ...MENU 2 22 Expansion Rate 22 Scale Line 23 Depth Marker 23 Water Temp Graph 23 Water Temp Alarm 24 Depth Alarm 24 Battery Alarm 25 Temp unit 25 Depth Unit 25 Water Temp Correction 26 Auto Range Max De...

Page 5: ...marine disaster Please be sure to use the official marine charts for navigation judgment Do not operate the unit when you operate the boat It causes to marine disaster Please be sure to operate it af...

Page 6: ...in cables it causes to the accident Do not put the heavy objects on cables or do not bend cables excessively Do not disassemble or modify cables It causes to firing electric shock or injuring Do not u...

Page 7: ...s lacked or there exists pixel light always It is not trouble Please understand it in advance When he engine starts to run voltage of battery varies heavily It may affect to the unit Put the power swi...

Page 8: ...time when image is sent by one line to the left ultrasonic wave is transmitted right edge of screen in different colors 4 2 How to distinguish the fish school Importance is comparison between display...

Page 9: ...the reflection becomes weak and bottom image becomes thin and the second reflection becomes hard to appear 2nd reflection Second reflection Ultrasonic wave transmitted from transducer is reflected fr...

Page 10: ...sure to install correctly according to below procedure Install the display unit with front protect cover referring to below figure Rubber Ring Washer Main unit Clamping Knob Bracket Mushroom Tapping S...

Page 11: ...e Ultrasonic wave transmitted from transducer is obstructed by air bubble and it results to worse display of fish school and sea bottom Please select the place where transducer is kept in sea water wh...

Page 12: ...install But when ultrasonic wave goes through bottom it is losing power Thus it is not suited for detecting the deep water 8 Transducer Hull Transom Cover Screw Transducer Resin Case Bottom of less t...

Page 13: ...lue it correctly again Please take care not to hurt the transmitted side of transducer Please fix the transducer for example with weight not to slip contact until resin is thickened It takes approx 24...

Page 14: ...gap with putty When you install the transducer above the hull of stern air bubble attach transducer s surface easily and you can not get any echo at high speed Transom Bracket Standard Component of T...

Page 15: ...shock Installation of transom water temp sensor TC02ES Installation of water temp sensor Fix water temp sensor unit TC01C TC01G with 2 screws at the place where body of boat is always in water Fix TC0...

Page 16: ...er with square holes of unit and fit the cover Please confirm if two locks fit correctly Press two locks firmly until small sound to lock comes out and close the cover Press positions indicated by arr...

Page 17: ...se dry cell batteries are used it turns to Battery Indicator Page 14 Power ON key Page 14 Power OFF key Page 14 Auto Range Page 19 Water Temp Depth Page 21 Color Bar Page 21 Sweep Speed Page 18 Menu k...

Page 18: ...u want all 7 1 Basic Operation 7 1 1 Power ON OFF 7 1 2 To adjust the depth 7 Operation of unit 1Each time when you press key depth 14 display range decreases Each time when you press key depth displa...

Page 19: ...Normal display B L Bottom contour is indicated as a straight line and expansion view of certain area from it s contour is shown 15 AUTO EXP The bottom is enlarged and shown Even if the depth varies th...

Page 20: ...ss key for more than 2 seconds on normal image 2Whole of screen lights in white 3It returns to normal image pressing any key You can select language Please proceed to select 1 When you press key for a...

Page 21: ...y for more than 2 seconds Menu is finished pressing key more 7 2 To set functions on menu Cross key Menu key 7 2 1 To use menu 17 3When menu 1 is shown you select item with of cross key Selected item...

Page 22: ...ranks of sweeping speed can be selected on menu Ratio of sweeping speed vs sounding rates at each set value is shown on below table At S setting sweeping speed is high 3000 times min at maximum It en...

Page 23: ...third reflection M Sensitivity medium It helps you to watch the display as general fish finder H Sensitivity increased It helps you find the small fish 1 Sensitivity is automatically adjusted so that...

Page 24: ...r non indication of fish mark FISH MARK OFF ON FISH MARK A Mode 2 Press key MENU 1 is shown Select A MODE with of cross key Select with key OFF It does not indicate A Mode ON It indicates A Mode 1 It...

Page 25: ...round Color Background Color Clutter Press key MENU 1 is shown Select CLUTTER with of cross key Select with key OFF It cancels Clutter function 1 It effects Clutter function strongly 2 It effects Clut...

Page 26: ...not indicate bottom nature graph and bottom nature level ON It indicates bottom nature graph and bottom nature level 1 Besides strength of second reflection is indicated in digits 0 20 it s graph is s...

Page 27: ...ter Temp Graph Press key MENU 1 is shown Press key for more than 2 seconds MENU 2 is shown Select DEPTH MARKER with of cross key Select with key OFF It does not indicate DEPTH MARKER ON It indicates D...

Page 28: ...TEMP SET 2 Select TEMP SET 1 or TEMP SET 2 with of cross key Set Water Temp with key 5 4 2 3 Alarm goes off within or out of two set values DEPTH SET 1 DEPTH SET 2 ALARM SET OFF IN RANGE OUT RANGE DEP...

Page 29: ...N Battery Alarm 2 3 4 key Select with of cross key Select TEMP UNIT with key UNIT SETTING is shown Press of cross key Select UNIT SET with Press key MENU 1 is shown Press key for more than 2 seconds M...

Page 30: ...ottom is searched when auto range is set When auto range maximum depth is set to deep it takes long time to indicate the depth digit and depth range sometimes becomes deep range due to malfunction In...

Page 31: ...s noise is shown CLEAN ECHO OFF L H Other Setting Clean Echo 2 3 4 It selects pulse length Theory of fish finder is same as echo in water Length of transmitted ultrasonic wave is called pulse length S...

Page 32: ...th key 1 It enables to set with the draft value of boat when you want to indicate the depth from sea surface You can set draft value at 0 1m step from range of 0 5 0m KEEL OFFSET 0 0m 5 0m Special Set...

Page 33: ...is shown Select SYSTEM RESET with of cross key Press key If it is OK to execute system reset press key Then system reset is executed When you want to cancel system reset press key 1 System Reset 2 3 W...

Page 34: ...tapping screw Transducer TD26 Water Temp Sensor TC01C 10m TC01G 5m Front Cover Strap with hooks Clamping Knob short Water Temp sensor TC02ES 15m TCT01 Installation kit Clamping Knob short Front Cover...

Page 35: ...n Expansion OFF Bottom Lock Auto Exp Manual Exp Expansion Rate x2 x4 x8 A Mode OFF ON Fish Alarm OFF ON Fish Mark OFF ON Depth Alarm OFF In Range Out Range Water Temp Alarm OFF In Range Out Range Swee...

Page 36: ...place Replace transducer Faulty of transducer Please check the followings If you find abnormal symptoms 1 If you hear sound like Bo Bo from surface of transducer it is normal 2 When you rub the surfac...

Page 37: ...low described place the image with low sensitivity may be shown But it is not trouble Bottom or fish school is not displayed well where there are many sludge where there are many sea weeds where there...

Page 38: ...12 Dimension Drawing Drawing of holes for installing bracket 34...

Page 39: ...20 Oyamazuka Oiwa cho Toyohashi Aichi Japan PC441 3193 Tel 81 532 41 2512 Fax 81 532 41 4441...

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