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Z-7200 |
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LIQUID CRYSTAL GRAPH |
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INSTALLATION AND OPERATION MANUAL |
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TNSLE |
LITHO IN U.S.A. |
988-0106-09 |
THEALL AMERICANSONAR |
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TABLE OF CONTENTS
INTRODUCTION |
1 |
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INSTALLATION |
1 |
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POWERCONNECTIONS |
2 |
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TRANSDUCER |
3 |
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KEYBOAJRD BASICS |
4 |
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DISPLAYINTERPRETATION |
6 |
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OPERATION |
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OFF |
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AUTO |
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7 |
AUrOMA11CSENSFTIVIry |
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RETSPEED |
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RANGE |
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10 |
LOWERLIMIT |
11 |
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AUTO 8011CM TRACKING |
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GRAYLINE |
12 |
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DIGITAL |
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13 |
ZONEALARM |
14 |
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LIGHT |
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15 |
COMMAND |
15 |
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MENU #1 |
.SPEAKERVOLUME |
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MENU #2-DISCRIMINATION |
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MENU #3 |
-SURFACECLARITYCONTROL (5CC) |
18 |
MENU #4 |
-DIGITAL |
19 |
MENU #5 |
-DIGITALAVERAGE |
19 |
MENU #6 |
-DIGITALSIZE |
20 |
MENU #7 |
-DIGITALTENTHS |
21 |
MENU #8-GRAYLINESET |
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MENU #9 |
-GRAYLINECHECKS ORLINES |
22 |
MENU #10-ZONEALARMDISPLAYLOCK |
23 |
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MENU #11 -PULSEWIDTH |
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MENU #12-FEET,FATHOMS,METERS |
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MENU#13-SCALES |
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TRANSDUCERSANDCONE ANGLES |
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SIGNAL INTERPRETATION |
27 |
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ASH SIGNALS |
28 |
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WATER TEMP.ANDTHERMOCUNES |
29 |
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SURVEYINGALAKE |
31 |
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BAITFISH |
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32 |
HOWTOOBTAIN SERVICE |
32 |
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SCHEMATIC ANDPARTS LIST |
32 |
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SPARE PARTS |
33 |
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SPECIFICATIONS |
33 |
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GLOSSARY |
34 |
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calenergyfromthetransrriitterinto ultrasonic soundwaves. Whenareturn echostrikes thetransducer, it converts the sound waves into electrical energywhichisreceived anddisplayed bythe sonar unit.
TRANSOM MOUNT -Amethod ofmountingtransducers orothersensors onthetransomofthe boat.
UPPER/LOWER LIMIT-Thesearetherangelimitsdisplayedonthesonar
screen or paper. Theupperlimitisshown atthetopofthedisplay, while thelowerlimitisatthebottom. Forexample, a20to30foot rangehas20 feetas the upperlimit arid 30 feet asthelowerlimit.
VIDEOGRAPH -Asonar unitthat usesa CRTortelevision type display.
WINDOW-Asegmentofthedepth range. Forexample, an upperlimitof 20feetand alowerlimit of50feetcreates a30foot window.
ZOOM-Afeaturethat enlargestargetsonthedisplay.
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REMOTE -An intelligent "repeater" unitthat receives depthinformation fromanother sonarunit. Aremote doesn'thaveatransmitter or receiver.
However, Itdoes have It'sownfeatures that are adjustable and operate separatelyfromthemaster.
RESOLUTION -Theabilityofasonar unitto separate targetsfromeach otheror thebottom.
RMS Astandard rating oftransmitter power output. |
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SCALE |
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Themarkings onasonar |
unit's |
Todetermine the |
depth |
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display. |
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the |
location.to thelocationofthescale |
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ofatarget,simplycompare target's |
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markers onthedisplay.
SECOND ECHO -Anotherechothatregisters atroughlytwicethe depth of atarget echo. This is caused by the sound wavesreflecting off the bottom,strikingthesurface ofthewater,travellingtothebottomagain, and returing tothe surface.
SECOND FUNCTION KEY-A buttonthatconvertsthefunctionsofthe
primarykeys on the keyboard. Sonarunitswith a secondfunctionkey have otherkeys with two functions. You can switchfunctionswith the
second functionkey.
SENSITIVITY -The ability of a sonar unit'sreceiver to displaytargets.
Increasing the sensitivity allows weakertargetsto be displayed. Also called"gain".
SCROLLSPEED -See CHARTSPEED.
SHOOT-THROUGH-HULL - A transducer installation which allows the sonarsignalstopassthroughafiberglass hullwithoutcuttingaholein the hull.
SUPPRESSION-Amethod used In some sonar unltstoeliminate interfer- enceor noise.
SURFACE CLARITY CONTROL -Reducesoreliminates undesirablesig- nals displayed nearthewater'ssurface. Alsocalled "5CC".
THERMOCUNE |
ofwatercaused |
meeting |
ofwarm and cool |
-Alayer |
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bythe |
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layersofwater. Thethermocline providesthetemperature mostfishprefer.
TRANSDUCER -Theelement ofasonar system thatconvertstheelectri-
INTRODUCTION
When the Z-7200 Liquid Crystal Graph (LCG) is turned on, it will |
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bottom signal and othertargets. Asthe |
automaticallyfind displaythe |
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bottomdepth changes, theZ-7200 will automaticallychange the range andsensitivity tokeepthebottom signal onthedisplay. Ifdesired, the onlykey thatneedstobetouched istheON key. However, disabling the
automaticmodeallowsmanualadlustment oftheZ-7200.
The Z-7200 is nitrogen filled and sealed for completewaterproof
protection. Theliquid crystal display and keyboardare backlighted for easyuse atnight. PIus, ft'scovered by afull oneyearwarranty. This includes allpartsandlaborforoneyearfrom thedate ofpurchase.
Togetstarted with yourZ-7200,firstreadtheinstallation section. This
iswhereitall begins,and Improperinstallationcan cause problemsdown
theroad. After you'veread these instructions andInstalledyourZ-7200, read the rest of this manual indetail. Themoreyou knowwhenyou get
tothe water,the more yourZ-7200 willdoforyou.
INSTALLATION
Mounting
Install the Z-7200 in any convenient location,providedthere is clearance whentiltedforthe bestviewingangle. Holesinthebracket base
allow wood screw or through bolt mounting. |
Attach the bracket to |
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aluminum |
sheetmetalscrews. Placea |
ofplywood onthe |
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piece |
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panelswith |
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back ofthin fiberglass panels tosecure the mountinghardware. Make |
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certain there is enough room behind the unit to attachthe powerand |
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transducercables. |
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Youcan routethe |
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and transducer cables throughthe7/8" |
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power |
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them |
aholein |
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holeInthebaseof |
the |
bracket. Then |
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gimbal |
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pass |
through |
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the mountingsurface. The smallest holethat will passone connector throughis3/4H Passthetransducer connectorand cableupthroughthe holeand gimbalbracket. Then push the powercablewire downthrough
the bracketand dash. Afterroutingthe cables, fillthe holewith silicone rubberadhesive (RN). Offsetthe brackettocoverthemajorityofthehole.
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PowerConnections
TheZ-7200operates froma 12volt batterysystem. Attachthe powercabletoan accessory or power buss. Ifyou have problems with
electrical interference, then attach thecabledirectlytothe battery. Elec- trical interference shows as random dots on the displaywhenever the
boat's |
oran |
accessory ison. |
engine |
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Thepowercablehastwowires, redisthe positive leadand black isnegative orground. Attachthe in-linefuseholdertothered wireonthe powercablewith thecrimpconnector. Theotherendofthefuse holder
attaches tothebatteryoraccessory buss. Ifthecableisnotlongenough,
spliceordinary#18gaugewire ontoit. Be certain thatthefuseholderis
asclosetothepowersource (batteryoraccessorybuss) aspossible. This protectsthepowercableandyourZ-7200intheevent ofashort. Usea3-
ampfuse.
TheZ-7200 hasreversepolarity protection. Nodamagewilloccur ifthewiresare reversed. (However,theunitwill notworkuntilthewires are
attachedcorrectly.)
ofthebottom. Inotherwords,youcantell Ifthebottomis softorhard. A
hardbottomreturnsastrongsignalcausingawidegrayline.Asoft,muddy or weedy bottom returns a weaker signal which is emphasized with a narrowgray line.
IN-DASH -Asonarunitinstalledthroughaholeintheboat'sdash.Usually, theface ofthesonarisflushor nearly sowith thedash.
kl-Iz -Kilohertz. Ameasurementoffrequency. YourEaglesonaroperates at 192 Kilohertz. (192,000cyclespersecond).
LCD - Liquid crystal display. Thescreen or displayofa LiquidCrystal Graphsonarinstrument.
LCG -Liquid Crystal Graph.
NOISE - Any undesired signal. Electrical noise is caused by engine ignitions systems, radios,etc. Acoustic noiseiscaused bythevibrationof
the engine or other mechanical sources. It appears on thedisplayas random dots or lines.
OPERATING FREQUENCY-Frequencythatthesonar unit'stransmitter and receiverare tuned to.
OUTPUTPOWER -Theamplitudeofelectrical energytransmitted fromthe sonar unit to thetransducer. Measured in watts, the higherthe output power, thedeeperasonarunitcanread, and moredetailcan bedisplayed.
PEAK-TO-PEAK -A measurementofthetransmitterspoweroutput.
PIXEL -Thesmall dots or squaresonaliquid crystal displayor CRT.
PIXELDENSITY-Thenumber ofpixelspersquareInch onaliquidcrystal
display. Thebest resolution Is obtainedwhenahighnumberofpixelsare inthevertical.
PULSE LENGTH -Theamount oftime thatthe sonar transmits. This is
measured in micro-seconds. Theshorterthepulselength, the betterthe resolution. Forexample, a30micro-secondpulselength isequal toaone inchresolution.
RANGE-Thesectionofwatershown onthesonardisplay. Forexample, a60 foot range haszerofortheupperlimit and60forthelowerlimit.
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GLOSSARY
ANCHOR WATCH -Asetting ofthesonarunit'salarm.Thealarmactivates whenthe boat drifts into shallower or deeper waterthan the alarm set
points.
BACK-LIGHTED - A display or keyboard illuminated from behind by a light. Back-lighteddisplaysand keyboardsareessentialwhefl nightfishing
ornavigating.
CAVITATION -Airbubblescreatedbythehighspeed movement ofaboat ortransducerthroughwater.
CHARTSPEED -(1) The speed of the chart paper on a papergraph recorder. (2)Thespeed ofanimage across thescreen ofaliquidcrystal graph. (Also called "scrollspeed").
CONE ANGLE-Width ofthe transducer'scone of sound. Eagle has transducers with coneangles from 8 to 45 degrees to suit the varying
needs offishermen. |
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CRT-Abbreviation forCathode Ray Tube. SeeVideoGraph. |
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DEFINITION |
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sonarunit's |
toshowdetail. A |
high |
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Theabilityofa |
display |
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resolution |
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canshowmoredetail thanalow resolution one. |
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display |
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DISCRIMINATION -Afeaturethatallowsthesonarto eliminatenoiseand
information. Discrimination onEagle productscuts displayonlytruetarget
outfalsesignals fromothersonar, noise, thermoclines, and more.
FISH ALARM-An alarmthatactivates whenafish isdetected.
FISHARCH- Asonar with good resolution displaysfishsignals with an upsidedown"V"orarch.Thisdistinguishesfish signalsfrom othertargets.
FLUSH MOUNT - Atransom mounttransducer that is installed with the bottomofthetransducer flushwiththebottomofthe hull.
GIMBALBRACKET -Abracket used toinstall asonar unit permanently.
Thesonarunit can rotate in the bracket forthebestviewingangle.
GRAYLINE -Thisfunctionshowstherelativestrength ofsignals displayed onthescreen. Signals weakerthantheGRAYLINEsellingaredisplayed inblack, strongertargetsaregray. Italsogives cluestothecompostition
NOISE
Minimize electrical noise by routingthe powercableaway from otherpossible sourcesofelectrical interference. Oneofthelargest noise
generators istheengine'swiring harnessthat runsfromtheenginetothe instrument panel. Thisharnessusuallycontainsawireforthetachometer
which radiates RF (radio frequency) energy. For best results, keep the
powerand transducer cables away fromthe engine wiring. Also, bilge pump wiring can sometimes radiate noise so try to keepthe 7-7200's
cables awayfromthose wires.
VHF radio antenna cables radiate HF energy at higher power
levelsthan eventheengine'swiringharness. ItisimportanttokeeptheZ-
7200'spowerand transducer cables as far awayas possible from VHF radio cables.
Ifinterference begins atslowboat speeds, worsening astheboat
is acousticnoise, or cavitation. This noise is notelectrical, but rathermechanically induced noisefrom the transducer. Stoptheboat, puttheengine inneutral, andincrease the
Rpm. Ifthe noisedoes not increase onthe display, then it is cavitation. Usually, air bubbles passing over the face of the transducer create
acousticnoise.Thefasteraboattravels,themoreairbubblesincrease and
generate noise on To eliminate this problem, read the transducerowner'smanualforproper mountingtechniques.
TRANSDUCER
Installation instructions forthetransducerare withthetransducer in aseparate package. Please readtheinstructions carefully before you install thetransducer.
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KEYBOARD BASICS
This sectiongives abriefexplanation ofthekeyboard. Read the Operation sectionforadetaileddescription ofeachkey'soperation.
SENSITIVITY These keys control
the graph'ssensitivity. (rho digital ad its
automatically justs sensitivity.) Thereceiver sensltMtyhas32steps,
allowing adjustment over a wide range ofconditions. Theleftarrow
keydecreases the sensitivity, the right arrow key increases It.
RANGE The arrow keysallowthe selection ofdepthranges. Pressthe up arrow to decrease the range depth. Press the down arrow to increase the range.
ZOOM Targetson the display enlarged to twice normal size or
"zoomed"withthiskey.
ON OFF Thesekeysturnthe2-7200 on and off. To turn it on, simply pressthe ON key. To turn It off, pressthe OFFkey.
Pressing any key gener- |
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ates atoneor "beep." This istheZ- |
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7200's of |
telling you |
that ithas |
way |
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acceptedacommand. |
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SPARE PARTS
Thefollowingisalistofthemostcommonlyneededparts. To order,simplywritethelistofpartsrequired onaslipofpaperand mail
ittotheabove address.
(Note: Pricesubjecttochange withoutnotice.)
PartNumber
151-0071-00
003-2250-00
003-2223-00
003-2181-00
988-0106-09
SPECIFICATIONS
Dimensions
Weight
Transmitter
Frequency
OutputPower
Receiver Sensitivity
Operating Current
OperatingVoltage
Numberofpixels
DepthCapability
Description |
Price |
Power Cable |
6.75 |
Gimbal Knobs (w/washers, 2 ea.) |
3.95 |
Gimbal Bracket |
7.75 |
Fuse Holder (w/3 ampfuse) |
3.95 |
Owner'sManual |
2.50 |
53/4"Hx83/16Wx25/SD
1 3/4 pounds
192kHz
500 wattspeaktopeaktypical
63.5 watts RMS
> 85dbtemperature stabilized
200 ma (lights off)
500 ma (lights on)
9-15vdc
192x64 (verticalxhorizontal)
12,288Total
300'-500' typical
(with 20 degree transducer)
500'-700' typical
with8degree transducer)
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