Download Lowrance electronic X-40 User's Manual

(
X-40
LIQUID CRYSTALGRAPH
INSTALLATION AND OPERATION MANUAL
•eLOWRANCE ELECTRONICS, INC.
12000 E. SKELLY DR., TULSA, OK 74128
UTHO IN U.S.A.
988-0105-09
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TABLE OF CONTENTS
POWER CONNECTIONS
NOISE
TRANSDUCER
KEYBOARD BASICS
DISPLAYINTERPRETATION
OPERATION
ON
CLEAR
AUTO
SENSITMTY
CHART SPEED
SCALE
RANGE
LOWER LIMIT
UPPER UM1T
AUTO BOTTOM TRACKING
GRAYLINE
DIGITAL
TENTHS
ALARMS
NOTE KEY
ZONEALARM
DEPTH ALARM
LIGHT
DiSCRIMINATION
8CC
FEET-FATHOMS-METERS
PULSE
COMMAND
MENU #1 - SPEAKERVOLUME
MENU #2- GRAYLINECHECKS/LINES
MENU #3 - SCALES
MENU #4 - DIGITALAVERAGING
TRANSDUCERSANDCONEANGLES
SIGNAL INTERPRETATION
FISH SIGNALS
WATERTEMP. AND THERMOCLINES
SURVEYINGA LAKE
BAIT P1514
HOWTO OBTAINSERVICE
SCHEMATICANDPARTS LIST
SPAREPARTS
SPECIFICATIONS
GLOSSARY
2
3
3
4
6
7
7
7
s
8
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11
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12
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TRANSDUCER -Theelement ofasonar system that convertstheelectrical
energyfrom thetransmitter Into ultrasonic sound waves. When a return
echo strikes thetransducer, it converts the sound waves into electrical
energywhich is received anddisplayed by the sonar unit.
TRANSOM MOUNT-A method ofmounting transducers orothersensors
I
on ti1..e transomo.S t1e I...
oat.
UPPER/LOWER UMIT-Thesearetherangelimitsdisplayed onthe sonar
screenor paper. The upperlimit is shown at the topofthe display, while
the lower limit is atthe bottom. Forexample, a20 to 30foot range has20
feet as the upperlimit and 30 feet as the lower limit.
VIDEO GRAPH - A sonar unitthat uses aCRT or television type display.
WINDOW - A segment ofthedepth range. For example, an upperlimit of
20 feet and a lowerlimit of50 feet creates a 30 foot window.
ZOOM - A feature that enlarges targets on thedisplay.
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Copyright© 1987Lowrance Elecfronios, Inc. All Rights Res3rved.
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a 60 foot range haszero fortheupperlimit and 60 for the lower limit.
INTRODUCTION
REMOTE - An Intelligent "repeater"unitthat receives depth information
from another sonar unit. Aremote doesn'thave atransmitter or receiver.
However, it does have ft's own features that are adjustable and operate
separately from the master.
Welcome totheworld of sportfishlng sonar. Your Lowrance X-40
is ahighqualitysonardesigned forboth professionaland novice users.The
X-40automaticallyfindsand displays thebottomdepth,fish, and structure
by justby turning it on. As you become familiarwith your X-40, try some
of its remarkable features. "Fine tune" the unit to the surrounding
conditionsto getthe mostfrom your sonar.
RESOLUTION - Theabilityof a sonar unitto separate targetsfromeach
other or the bottom.
RMS - A standard rating oftransmitter poweroutput.
You can programtheX-40 to sound alarms whenthe boat goes
shallower or deeperthan a presetdepth. An alarm will also soundwhena
fish enters an alarm zone. Zoom in and separate fish from structure and
SCALE -Themarkings on a sonar unit'sdisplay. Todetermine thedepth
ofatarget, simplycompare thetarget'slocationtothelocationofthescale
markers on the display.
each other.
SECOND ECHO -Anotherechothat registers at roughlytwicethe depth
of a target echo. This is caused by the sound waves reflecting off the
bottom, strikingthesurfaceofthewater, travellingtothebottomagain, and
returing tothe surface.
readtheinstallationsection. This
TogetstartedwithyourX-40,first
iswhereit all begins, and improper installation can causeproblemsdown
theroad. Afteryou'vereadtheseinstructions and installedyour X-40, read
the rest of this manual in detail. The more you knowwhen you getto the
water, the moreyour X-40 will do foryou. Take this manual for reference
whenyou head to thelake.
SECOND FUNCTION KEY- A button that convertsthe functionsof the
primarykeys onthekeyboard. Sonarunitswithasecond functionkeyhave
otherkeyswith two functions. You can switchfunctionswith thesecond
function key.
Only Lowrance gives you the power to adjust a sonar unit to its
maximum potential.
SENSITIVITY - The ability of a sonar unit's receiver to display targets.
lncreasingthesensitivity allowsweakertargets tobedisplayed. Alsocalled
INSTALLATION
"gain".
Mounting
SCROLLSPEED - See CHARTSPEED.
SHOOT-THROUGH-HULL - A transducer installation which allows the
sonar signals topassthroughafiberglass hull withoutcuttinga holeInthe
hull.
SUPPRESSION - Amethod used in some sonar unftstoeliminate interference or noise.
SURFACE CLARITYCONTROL- Reduces or eliminates undesirable signals displayed near thewater'ssurface. Also called "SCC".
THERMOCLINE -Alayerofwatercausedbythemeetingofwarmandcool
layers ofwater. Thethermocline providesthetemperature mostfishprefer.
Install the X-40 in any convenient location, provided there is
clearance whentiltedforthebestviewing angle. Holesinthe bracket base
allow wood screw or through bolt mounting. Attach the bracket to
aluminum panelswith sheet metal screws. Place apieceofplywood onthe
back of thin fiberglass panels to secure the mountinghardware. Make
certain there is enough room behind the unit to attach the power and
transducer cables.
You can routethe powerand transducer cables throughthe7/B"
hole in the base of the gimbal bracket. Then passthem througha holein
the mountingsurface. The smallest holethat will pass one connector
through is3/4". Pass the transducer connectorand cableupthroughthe
holeand gimbal bracket. Then push the powercable wire downthrough
thebracketand dash. After routing the cables, fill the hole with silicone
rubberadhesive (RTV). Offsetthe brackettocoverthemajorityofthe hole.
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1
PowerConnections
TheX-40 operatesfroma12voltbatterysystem. Attachthe power
cabletoanaccessoryor powerbuss. Ifyou have problems with electrical
interference, then attach the cable directly to the battery. Electrical
Interference shows as random dots on the displaywhenever the boat's
engine or an accessoryis on.
on thescreen. Signals weaker thantheGRAYLINEsettingaredisplayed
in black, strongertargetsare gray. Italso gives cluestothecompostition
ofthebottom. In otherwords, youcantell if thebottom is softor hard. A
hardbottomreturnsastrongsignal causing awidegrayline. Asoft, muddy
or weedy bottom returns a weaker signal which is emphasized with a
narrowgray line.
Thepowercablehastwowires, red isthepositive lead and black
is negative or ground. Attach the in-linefuseholdertothered wire on the
powercablewith the crimpconnector. The otherend ofthe fuse holder
attaches to the batteryoraccessorybuss. Ifthe cableis notlong enough,
spliceordinary#18 gaugewire onto it. Be certain that thefuseholder is
as close tothepowersource(batteryoraccessorybuss) as possible. This
protectsthe powercableand yourX-40 intheevent ofashort. Usea3-amp
IN-DASH -Asonar unitinstalledthrough aholeIntheboat'sdash. Usually,
thefaceofthe sonar is flush or nearly so with thedash.
TheX-40 hasreverse polarityprotection. No damage will occur if
thewiresare reversed. (However, theunitwill notwork until thewiresare
LCG - Liquid Crystal Graph.
fuse.
attachedcorrectly.)
kHz - Kilohertz. A measurement of frequency. Your Lowrance sonar
operates at 192 Kilohertz. (192,000 cyclesper second).
LCD-Liquid crystal display. ThescreenordisplayofaLiquid Crystal Graph
sonar instrument.
NOISE - Any undesired signal. Electrical noise is caused by engine
ignitions systems, radios, etc. Acoustic noiseis caused bythevibration of
the engine or other mechanical sources. It appears on the display as
random dots or lines.
OPERATING FREQUENCY- Frequency that the sonar unit'stransmitter
and receiverare tuned to.
OUTPUT POWER-Theamplitude ofelectrical energytransmitted fromthe
sonar unit to thetransducer. Measured in watts, the higher the output
power, thedeepera sonar unitcanread,and moredetailcan bedisplayed.
PEAK-TO-PEAK
3-AMP
- A measurementof the transmitter's poweroutput.
PIXEL-The small dots or squares on a liquidcrystaldisplayor Crt.
PIXELDENSITY -The numberof pixels per square inch on a liquid crystal
display. The bestresolution is obtained whena high number ofpixels are
in the vertical.
12 VOLT BATTERY
PULSE LENGTH - The amountof time that the sonar transmits. This is
measured in micro-seconds. Theshorter the pulselength, the better the
resolution. For example, a 30 micro-second pulselength is equal to a one
inch resolution.
RANGE - Thesectionofwatershown onthe sonar display. For example,
2
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NOISE
GLOSSARY
ANCHOR WATCH -Asellingofthesonar unit'salarm. Thealarm activates
when the boat drifts into shallower or deeperwater than the alarm set
points.
byalight.
BACKLIGHTEDAdisplayorkeyboardillUminatedfrombehitX1
Back-lighted displaysand keyboards are essential when night fishing or
navigating.
CAVITATION -Air bubbles created bythehighspeed movement ofa boat
or transducer throughwater.
CHART SPEED -(1) The speed of the chart paper on a paper graph
recorder. (2) Thespeed of an image acrossthe screen ofa liquid crystal
graph. (Alsocalled "scroll speed").
CONE ANGLE-Width ofthe transducer's coneof sound. Lowrance has
transducerswithconeanglesfrom8to45degreestosuitthevaryingneeds
offishermen.
CRT -Abbreviation for Cathode RayTube. See VideoGraph.
DEFINITION -The abilityof a sonar unit's displayto show detail. A high
resolution displaycan show more detailthan a low resolution one.
DISCRIMINATION -A featurethatallowsthe sonar toeliminate noiseand
displayonlytruetargetinformation. Discrimination onLowrance products
cuts outfalse signals from othersonar, noise, thermoclines, and more.
FISH ALARM- An alarm that activates when a fish is detected.
FISHARCH - A sonar with good resolution displays fish signalswith an
upsidedown"V" orarch. This distinguishesfish signalsfromothertargets.
Minimize electrical noise by routingthe power cable away from
otherpossible sources ofelectrical interference. Oneofthelargestnoise
generators is the engine'swiringharness that runs from the engine to the
instrument panel. Thisharness usually containsawireforthe tachometer
which radiates HF (radiofrequency) energy. For best results, keepthe
power and transducer cables away from the engine wiring. Also, bilge
pumpwiring cansometimes radiate noise so trytokeeptheX-40's cables
awayfrom thosewires.
VHFradio antenna cables radiate RFenergyathigherpowerlevels
than eventhe engine'swiring harness. It is importantto keeptheX-40's
power and transducercables as far away as possible from VHF radio
cables.
If interference beginsat slowboat speeds, worsening astheboat
speed increases, then a probable cause is acoustic noise, or cavitation.
This noise is not electrical, but rather mechanically induced noise from
the transducer. Stoptheboat, putthe engine in neutral, and increase the
rpm. If the noise does not increase on the display, then it is cavitation.
Usually, airbubblespassing overthefaceofthetransducercreateacoustic
noise. Thefasteraboattravets, themoreairbubbles increaseand generate
noise on the display. To eliminate this problem, read the transducer
owner'smanual for propermounting techniques.
TRANSDUCER
Installation instructions forthetransducer are withthetransducer
in a separate package. Please read the instructions carefullybeforeyou
install the transducer.
FLUSH MOUNT -A transom mount transducer that is installed with the
bottom ofthetransducer flushwith thebottom of the hull.
GIMBAL BRACKET - A bracket used toinstall a sonar unit permanently.
The sonar unit can rotate inthebracket forthebestviewingangle.
GRAYLINE -Thisfunctionshows the relative strength ofsignals displayed
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KEYBOARD BASICS
SPARE PARTS
Thissectiongives a brief explanation of the keyboard. Read the
Operation sectionfor a detailed descriptionof each key's operation.
The following is a list of the mostcommonlyneeded parts. To
order, simplywritethe list of parts required on a slip ofpaperand mail it
totheaboveaddress.
(Note: Price subjectto change withoutnotice.)
GRAYLINE SET Press this keyto adjust
the graylinelevel.
Part Number
Description
Price
151-0071-00
003-2249-00
003-2045-00
003-2181-00
988-0105-09
Power Cable
Gimbal Knobs (w/washers, 2 ea.)
Gimbal Bracket
Fuse Holder (w/3 amp fuse)
Owner's Manual
6.75
3.95
DIGITAL SONAR The X-40is really two
sonarsinonehousing.Themostobvious
isthe graph, designedto showall return
echoes. The other sonar is the digital,
designedfor only one purpose: to show
the bottom depth. These keys turn the
digital displayofforonandthe thedigital
alarm functions.
SPECIFICATIONS
SHALLOW
ZONE ALARMKEYS This groupcfkeys..—
controlsthe X-40'szonealarm. ft'scornrnonly used as a "fish alarm." A target
(such asafishorschooloffish) will setoff
the alarm if Itentersthe alarm zone.
UPPER LIMIT
LOWER LIMIT The Upper and Lower
Umit keys allow you to select different
depth ranges. Enter the desired depth
and then pressthe appropriate upperor
lowerlimitkey. The Upper Limitkeysets
the depth for the topofthe display. The
Lower Limit key determines the depth
displayedatthe bottom.
1
2
4
7
5
8
BTM
UPPER
LIMIT
F
CLEAR][
SOC
TIlIC
I)
PULSE
3
6
9
I'T/FA/M
5 3/4"H x 8 3/16Wx 2 5/8"D
Weight
1 3/4 pounds
"ND
AUTO
C 11
JtI.IGHY ]
CLEAR TheCLEAR key erases the last
entry. ftcan also erase otherfeatures, as
you will see later.
ON OFF ThesekeystumtheX.4Oonand
off. Toturniton,simplypresstheOwkey.
To turn it off, pressthe OFF key.
Pressing any key generates a
tone or "beep." This is the X-40's wayof
telling you that it has accepted a com-
mand,
Transmitter
Frequency
OutputPower
LowER
LIMIT
ON
4
Dimensions
DISPLAY
5121
C
7.75
3.95
2.50
192 kHz
600 watts peakto peaktypical
75 wattsRMS
Receiver Sensitivity
> 85 db temperature stabilized
Operating Current
200 ma (lightsoff)
500 ma (lightson)
Operating Voltage
9-15 vdc
Numberof pixels
192 x 64 (vertical x horizontal)
12,288 Total
DepthCapability
300'-SOO'typical
(with20 degreetransducer)
500'-700' typical
with 8degreetransducer)
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BAIT FISH
The importance of baitfish to successful fishing can't be overemphasized. They are the principle food of all game fish In mostwaters.
Baitfisharetheplanktonfeeding foragefish,suchasminnows and
Bait
fish can also be theyoung of game fish, such as crappies,
shad.
and
bass.
bluegill,
Most bait fish concentrate within five feet of the surface where
sunlightpromotesthe growth of the plankton on which they feed. One
methodoffishing isto usetheX-40 tofindthebaitfishfirst. A school ofbait
fishwill looklike a"cloud" ontheX-40'sdisplay. Usually, gamefishwill be
nearby, often directlybeneaththe school of baitfish.
HOWTO OBTAIN SERVICE
If you have a problem with your sonar unit, please give usa
chanceto help before sending it in for repair.
Assistance canoften be extended by telephoneor letter. Call
theAuthorizedCustomer Service Center nearest toyou. Ifthere Isn't
a servicecenternearyou, call thefactorycustomerservicedepartment
at 1-800-331-4105,toll free. Oklahoma residents call 918-437-6881,
collect.
Please detail the problem you are experiencing. Theservice
department may be ableto save you the inconvenience of returning
your unit.
If the unit must be returned, pack it carefully so it won't be
damaged. Itis advisable to insurethe unitin caseit'slostor damaged
during transit.
SCHEMATICDIAGRAM AND PARTS LIST
Ifyoudesireaschematic and parts listforyour Lowrance sonar,
send $1.Oototheaddress belowandtheinformationwillbemailed toyou
promptly. Be sure to includethe model and serial number of your
Lowrance sonar unit.
Mail To:
Lowrance Customer Service
12000 E. Skelly Dr.
Tulsa, Oklahoma 74128
SENSITIVITY
These keys control the
graph's sensitivity. (The digital automaticatly adjusts Its sensitivity.) The receiver
sensitivityhasS2steps, allowingadjustment
over awide range of conditions. The left
arrow keydeoreases the sensitivity, the right
arrow keyincreases it.
KEYBOARD BASICS
CHART TheCHART group of keys controls the chart speed. The X-40has 10
chartspeeds, rangingfromvery slow to
FAST. Pressing the FAST keyspeedsup
the chartspeed. The SLOW key reduces
it. TheSTOP/RESUME keystopsand restartsthe chart display.
NOTE KEY This keyturns the audible
alarm offor on.
Discrimination is an adjustable
noise rejection system. The levels of
adjustmentare0 through 10.
DISC
0-9 These keys allowthe entryof numbersothroughg.Someofthesekeyshave
more than one function. Use the 2nd
function key to use the other functions.
Pressing a numeric key displays the
numberinawindownearthetopcenterof
the display.
AUTO The AUTO keyswitchesthe X-40
Inorout oftheautomaticmode. TheX-40
automaticallyadjuststhe sensitivityand
rangeselection atpower on. Pressing the
AUTOkeyallowsyou totake controlofthe
X-40, making manual adjustments as
desired. When the X-40is in the automatic mode, the word "AUTO" displays
immediatelybelow the sensitivitybar.
2nd Thisallowskeystohave morethanone
function. Notice thatsomeofthe keys have
a small word printed in white belowits pri- Note:The X-40 has many more
mary function label. The white lettering features than the onesjust disdesignates a 2ndfunction. Activate a 2nd cussed. For a detailed lookat
function by first pressing the "2nd key." the X-40's features and
operaThen press a key which has the second
read
the
tion
instructions,
white.
For
the
Opfunction printed in
example,
AUTO keyalsohasthe word"LIGHT" printed erationsectionofthis manual.
on It. "LIGHT" is the AUTO key's second
function. Press the 2nd key,then the AUTO
keyto turn the lightson.
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DISPLAYINTERPRETATION
Now let's look at the display.
we'll
turn ontheX-40 by pressing
First,
theON key. Thelights willflashforsix
seconds. The chart scrollsthe return
echoes across the screen and the
digital searches for the bottomdepth.
It's flashes0 untIl it finds the bottom.
Once it findsthe bottom, thedepth is
ii
TiTjIii
A knowledge ofthewatertemperatures variousfish prefer, and in
whichthey usually remain, helps you get the mostfrom your X-40.
Herethe X-40 hasfound the
bottomat48feet. Therange is zeroto
80 feet. It automatically chooses a
lowerlimit that placesthebottomsignal nearthe bottom ofthe display.
indicates minimum sensitivity. Setting
SURVEYING A LAKE
-L
__________________
thesensitivity to maximum causesthe
bar to run completelyacross thetop ofthe display.
Theword STOP indicates the X-40's chart is stopped.
Thetoplineofthe chart isalways adashedline. Itmovesfromright
to left, showing the chart is moving. As the chart speed increases or
decreases, the dashed line changes speed accordingly. Stopping the
chart causes thelineto flash on and off.
The range is both an upper limit and a lowerlimit at thetop and
bottomofthedisplay, respectively. Inthis example,therangeisO-80feet.
Scalemarkersprinted onbothsidesofthedisplayhelpdeterminetheactual
depth.
For best results, read theOperation sectionof this manual. It
explains in detail all of the functionsthat are in this section, pIus other
features not discussed here.
6
fishermen because theyare areas where fish are active. Manytimesbait
fish will beabove thethermocline whilelargergamefish will suspend in or
just belowit.
The X-40 can detect this invisible layer in the water, but the
sensitivity will probablyhave to be turned up to seeit.
displayed.
The bar at the top of the disis
the
play
sensitivity bar. It shows the
sensitivity in use. The bar extends
from left to right. A very short bar
Thetemperature of water inthelake is seldom constant fromtop
to bottom. Layers of different temperatures form, and thelunction of a
warmand coollayerofwaterisathermocline. The depth andthickness of
thethermoclinecanvarywiththeseasonortime ofday. Indeeplakesthere
may be two or more at different depths. Thermoclines are important to
Themostsuccessful anglers on anybody ofwaterare those who
fishitdayafterdayandyearafteryear. Eventually,theylearn thehotspots
that producefishconsistently. Theydiscoverthroughexperiencewhere,
and atwhat depth,theycanexpect tofindthefishtheywantatanyseason.
And they realize that theseproductive areas change throughoutthe year
dependingon waterlevel, temperature,food, and otherfactors.
WiththeX-40, anyone can eliminate guesswork and concentrate
onthe areas where fish are likelytobe. Even if ft'sthefirsttimeon thelake!
Themostefficientwaytobecomeacquainted with abody ofwater
isto surveyit with your X-40. Startwith a map ofthelake, ifpossible, and
indicatethe promising spotsin relation to landmarks on shore.
Asyou goabout yoursurvey, yourX-40 will tell youthedepthand
type of bottom. Itwill also reveal suspended fish. Multiplesignals on the
dial usually indicatea good school offish and it's worth itto stop and fish
for them. You maynot get anyfurther.
Keep a few Lowrance Fish-N-Floats in the boat, ready to toss
overboard. When the X-40 indicates a school offish, throw the buoyout.
The string will unwinduntil the sinker hits bottom. Then, because ofthe
marker'sflat shape, it won't unwind any further. With the school thus
marked, you canmake yourturnand come backto fish in exactlytheright
spot. Thisisessential whenyou'refarfromshore ona biglake. Unless you
marktheschoolof fish when you're over it, you may notbe abletofind it
again.
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Mostfishdon'tspawn unlessthewatertemperature iswithinrather
narrow limits. To find the different temperatures, a surface temperature
meter, such as the LDT-3000 is a valuableaid to your boat. This unit
provides an extremely quick response to identifying the desired surface
water spawning temperatures for various species. Troutcan't survive In
streams that get too warm. Bass and otherfish eventually die out when
stockedin lakes that remain toocoldduringthesummer. While somefish
have awider temperaturetolerance than others, eachhasacertainrange
withinwhich it triestostay. Schooling fish suspended over deep waterlie
atthelevel that provides thistemperature. We assume theyarethemost
comfortablehere.
OPERATION
When theX-41) isfirstturnedon, Itautomatically findsanddisplays
thebottomdepth,and adjuststhe sensitivitytothe properlevel. Italso sets
the scales toa range that will keep the bottom signal on the display, plus
much more. Using the X-40 in this mode is simple and allows you to
concentrate on fishing. However, virtually everyfunction of the unit is
itcanbe "finetuned"tothesurroundingconditions.
manuailyadjustableso
Take this manual with you as a reference guide.
ON
roN j
TheONkeyislocated inthelowerrightcornerofthekeyboard. It's
easily found in this location- even at night. Toturn theX-40on, pressthe
ON key. Anaudiblebeep reflectsthekeypress. The chart lightswill begin
flashing, then stopaftersixseconds. TheLowrance logowillflashforafew
secondsasthechart scrolls acrossthe display. Thedigitalbottom depth
displaywill flash "0" until it finds the bottom. Then it displaysthe digital
depth.
OFF
[oFF]
To turn the X-40off, press theOFFkey.
2nd
t
J
I2ND1
TheX-40 has manydifferentfunctions, but onlya limited spacefor
keys. Therefore,someofthekeys have morethanonefunction. Eachkey's
primaryfunction is in one color, while it's secondfunction is white. To
accessthesecond function on a key, press the "2nd" keyfirst,then press
the appropriate key. For example, the AUTO key also has the label
"LIGHT." Pressing the AUTO key by itself takes the X-40 out of the
automaticmode. However, pressingthe2ndkey, thentheAUTO key, turns
theX-40's lightson. The2nd key just reassignedthemeaning oftheAUTO
keyfrom AUTO to LIGHT.
CLEAR
[CLEAR]
lfyou makeamistake,andpressakeyotherthanwhatyouwanted,
wait six seconds. TheX-40 will automatically erase the entry.
For example, ifyou wishtoturn on the lights, theproperkeys to
pressare 2nd,AUTO. However, suppose you accidentally pressed the0
key instead ofthe2nd key. Pressingthe CLEARkey erasesthe 0, allowing
youto start over. TheCLEAR key also erases or turns off otherfunctions
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of the X-40including8CC, Discrimination, and Upper Limit. When other
functionsare described in this manual, the CLEAR key's operation will be
explained in detail.
____
AUTO
TurningtheX-40onenables theautomatic mode. Toswitchtothe
manualmode,presstheAUTOkeylocatedabove theON key. Pressingthe
AUTOkeyerasestheword AUTOatthetopofthedisplay. Thiscancels auto
sensitivity and ranging, giving you complete manual control ofthe unit.
Returnthe X-40 to automatic atanytimeby pressing theAUTO keyagain.
SENSITIVITY
I—
kq
IGRAYLINEI
SET
i.e_i
When firstturned on, theX-40 is intheAUTO SEARCH mode. The
micro-computer automatically adjuststhesensitivity and range to findand
lock ontothebottom. Youcanleave the sensitivity intheautomatic mode
or manually adjust it to suit conditions.
A horizontal bar at the top ofthe screen displaysthesensitMty
level. When the sensitivity is at its minimum level, the bar is very short.
Increasing the sensitivity causes thebar totravel tothe right, increasing in
length correspondingly. Sellingthe sensitivity to maximum will cause the
bartoextend acrossthetopofthedisplay. (There are 32stepsofsensitivity
available.)
To placetheX-40 in manual mode, presstheAUTO keyonce. This
turns auto sensitivity off. Theword AUTO at the top of the display will
disappear, signifying thattheX-40 is inthe manual mode. To Increasethe
sensitivity, press and holdthe right arrowkey until the sensitivity is at the
desired level. The left arrow decreases sensitivity in the same manner.
Noticehow the sensitivity bar moves as you change settings. When you
presstherightarrowkey, the bar moves totheright, indicatingan increase
insensitivity. Pressingthe leftarrowkeymovesthebar totheleft, showing
thesensitivity hasdecreased accordingly. You'll also seethe change on
thedisplay.
Thephotoonthenext page showsa graph withtoolittlesensitivity.
On the right, the graphhasa propersensitivity setting. Afish alongwith
highersurface clutterare nowvisible, and the bottom signal haswidened.
8
Remember,theremustbe some movement betweenthe boatand
thefishto developthearch. Usually,thismeanstrollingatveryslowspeeds
with the main engine in gearat a minimum throttle selling.
Thedepthofthewaterwillaffectthesizeand shape ofthefisharch
duetothe coneanglediameter. Forexample, iftheconepasses overafish
in shallowwater, the signal displayed on the X-40 maynot arch at all. This
is due to the narrowcone diameter and the resolution limitations of the
display.
ii
—1I1
If a partial arch occurs most of thetime on your unit (the mark
curves up, but not backdown, orvice-versa) itcould bethe transducer is
not pointing straight down. Adjustatransom mounted transducer until the
fish showthedistinctivearch. Thismaytakesometrialand error until you
achieve the correct mounting.
Compared to a paper graph, aX-40 cannotshowas fine ofdetail.
Thereason forthis isthe pixels (dotson thescreen) are muchlargerthan
a papergraph'smarkings. Therefore,theX-.40cannotshowfisharches as
wellasagraph. Plus,itrequiresa bit moreworkinitiallytoreadandinterpret
thescreen than a papergraph.
Very small fish probablywill notarch at all. Medium sized fishwill
showa partial arch, or a shape similar toan arch if they're in deep water.
Largefishwill arch, butturnthesensitivity
upindeeperwatertoseethearch.
Because ofwaterconditions, suchas heavy surface clutter, thermoclines,
etc., the sensitivity sometimes cannot be increased enough to get fish
arches.
Oneof the bestwaysto getfish arches is to expand or "zoom" a
segmentofthewater.Forexample, 40to60feet. Thesmaller thesegment,
thebetterthescreen resolution will be. Then, turnupthesensitivity as high
as possible withoutgettingtoo much noise on thescreen. In medium to
deepwater, this method should work to displayfish arches.
WATERTEMPERATURE AND THERMOCLINES
Watertemperature has an important-If not controlling-influence
upon the activitiesof all fish. Fish are cold blooded and their bodiesare
aiwaysthe temperature ofthesurroundingwater. During thewinter, colder
waterslowsdowntheir metabolism. Atthistime, they need aboutafourth
as muchfood as they consume in the summer.
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Brush usually lies on the bottom and shows up as clumpsrising
abovethebottomsignal. Brushsignals looksimilartolargerocks,however
their signal is notas strongas rock.
11/Vs
AUTO
FISH SIGNALS
Thesignals displayed onthe X-40 by fish are identified by various
shaped markings in certain patterns,as opposed torandom marks created
by noise. Or thesolid, continuous markings made bythebottom.
Typically, fishare identifiedby acharacteristic archthat separates
them from their stationary surroundings. The reason for this is shown
below. Thedistanceto afishwhenitmoves intothesonar'sconeofsound
isshownas"A" below. Whenthefishhas moved intothecenterofthecone,
the distanceto it will be shorter, "B". As it moves out of the cone, the
distancewill Increase again as shown In "C".
8C
SENSITIVITY: TOOLOW
SENSITIVITY: PROPER
When the horizontal bar reaches the far right hand side of the
the
screen,
sensitivity level is at maximum. Withhigh sensitMtysettings,
a second bottom echo (second echo) mayappear. Thisis normal. It's
caused by the returning signal reflecting offthesurface ofthewater. Then
it makes a secondtripto the bottom and back again.
ToturnAuto SensitMty backon, press theAUTO key. Remember,
pressing the AUTO keyturns both automatic sensitivity and auto ranging
functionson and off at the same time.
AUTO SENSITIVITY ADVANCED OPERATION
When theX-40is intheautomatic mode,thereceiver's sensitivity
automaticallyadjuststothesurrounding conditions. Themicro-computer
places itatalevelslightlyabovetheminimum requiredtopickupthe bottom
signal.
Changing the sensitivity level whilethe X-40 is in the automatic
rnodeispossible. Thismaybe desirable ifthesensitivitylevel is notenough
to showfish or othersmall detail. TheX-40 will increasethe sensitivity to
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pick upthebottomsignal,then add inthelevel youprogrammed. Ifdesired,
you canadd sensitivity upto themaximum.
To adjustthesensitivity whiletheX-40 is in theautomatic mode,
simplypress the rightarrow key to increase it. Press theleftarrow keyto
decreasethesensitivity. Asyoupress thearrow key,the sensitivity barwill
move right or left, according tothe sensitivity level chosen.
51.0W
RESUME
FAST
CHARTSPEED
At poweron, the chart speed scrolls ata pre-determined speed.
Fora higherspeed, press and holdthe FAST key intheCHARTsectionof
thekeyboard. When the scroll speed reaches thedesired speed, release
theFASTkey. Toslowthedisplay,press andholdtheSLOWkey. Pressing
either ofthese keys causes the sensitivity bar at the top of the displayto
change to adashed line. Theletters "CHT" willappear near thetop ofthe
display. This bar represents the chart speed. If you press and hold the
FAST keyfor example, the bar will start moving to the right. Thissignifys
that the chart speed is increasing. There are 10 steps of chart speed.
Holding either the FAST or SLOW keys, the displaycanbe speeded up or
slowed down. When the horizontal bar reaches the far right side of the
screen, the chartspeed isat its maximum value. TheX-40will sound atone
indicating maximum chart speed.
To viewthe chart speed without changing it, press 2nd, FAST or
2nd, SLOW.
Attimes it is desirable to stop or "freeze"thedisplayto examine
an echobeforeit scrollsoffthescreen. PressingtheSTOP/RESUMEkey
oncewill freezethe display. Theword "STOP"appears nearthetop ofthe
display. Press STOP/RESUMEagaintostartthedisplaymovingatthe last
chart speedsetting. lfthedigitalsonar ison,thebottomdepthiscontinually
displayed. Thedigitaldoesnotstopwhenthechartisinthe"freeze" mode.
The20 degree transducer isalmostalwaysthebestto use infresh
water,the8degree mostly insaltwater. Inadeep waterenvironment, (300
feet - fresh water, 100 feet - salt water) the narrow cone angle is more
desirable. Since thesoundenergyIs concentrated Inasmallerarea, itcan
penetrate to much deeper depths.
Both 8 degree and 20 degree transducers give accuratebottom
readings, even thoughthe bottom signal is muchwider on the20 degree
model. Thisis because you are seeing more of the bottom. Remember,
theshallowedge of the signal shows youthetrue depth. The rest of the
signal tells you whetheryouare over rocks, mud, etc.
Painttransducers onsaltwaterboatswithathincoatofanti-foulant
paintto prevent organisms from growing. If unchecked, barnacles and
other marine growth will cause a decrease in the transducer's sensitivity.
Do not use a metal based anti-foulant paint as it will decrease the
transducer'ssensitivity. There are special anti-foulant paintsspecifically
designedfortransducers. They're readilyavailableat most marinedealers.
SIGNAL INTERPRETATION
Since yourX-40 is bothextremely sensitive and powerful, it gives
an accuratepicture ofthebottomthat your boat is passing. A bottomof
firm sand, gravel, shell, or hard clay returns a fairly wide signal. If the
automatic sensitivity is offand the signal narrows down,then it meansthat
you have moved over a mud bottom. Mud absorbsthe soundwave and
returns a weak signal. Turn upthe sensitivity. If you have theautomatic
sensitivityturned on, watchthesensitivity bar. Asthe boat passes overthe
mudbottom,the X-40willautomatically increasethe sensitivitytomaintain
agood bottomsignal. Thesensitivity barwill helpyou indetermining ifthe
bottomis softor hard. If it increaseswhilein the same depth ofwater, then
theboat hasmoved overa softbottom. Ifitdecreases,then 'it isovera hard
bottom. Of course, as the water depth increases or decreases, the
sensitivity will also change.
Bigrooks orstumpson a smooth bottomsend backsignals above
the bottom level signal. Theheight ofthesignal depends on thetarget's
height. As you pass over a post, it will be clearlyvisible as a short line
extending above the bottomsignal.
A steep slopereturns awide signal, thesteeper thewider. Signals
returned froma high underwater cliff are usually the widestof all.
10
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TRANSDUCERS AND CONE ANGLES
Thesoundwaves fromthetransducer spread out intothewaterin
a coneshaped beam. Thislooksmuch likethebeam fromaflashlight. The
angle between the outside edges of thecone is the cone angle.
--a
Lowrance offers a choice of transducers with either an 8 or 20
cone
degree
angle. Thesewill interchange with anyofthe 192 kHzsonar
In
otherwords, use any Lowrance sonar Instrument with any
products.
Lowrance transducer ofthe same frequency with no lossof performance.
However, theuseofanyothermanufacturers'transducerwillresult inaloss
pt•
of performance.
Typically, wide cone angle transducers (20 degrees) are ideal for
operating in shallow to medium waterdepths. The20 degree coneangle
allowsyou toseemoreoftheunderwaterworld. In 15feet ofwaterthe20
degree conecoversanarea about sixfeetacross. The8degreetransducer
covers only about a two foot circle.
SCALE
There aretenscalemarkers
on
both sides ofthedisplay.
printed
Thishelpstodetermine thedepth of
atarget. Forexample, Ifthe rangeis
0to 60 feet, then eachmark Is equal
tosixfeet. Ifa target(such asafish)
Is nexttothe5th line, then itis 30feet
deep. (5linestimes6feet= 30feet.)
To make it easier to usethe depth
scale, use ranges in multiples often,
Le. 10,20,30, etc.
RANGE
When the X-40 is in automatic, the ranges change to keep
the bottom signal onthedisplay as
the bottom depth varies. At times,
however, it may be desirable to
expand the range or zoom In on a
Con.MgI.
DIITIS
50
lOG
ISO
200
rTtt. a'
IBt
14-
21-
U-
target. Theupperlimit adjustsfrom
0 to 9989 feet and the lower limit
fromlOto999Qfeet. Any combination of the two limits Is allowed exceptthelowerlimitcannotbecloser
than ten feet to the upper limit.
Entering a segment less than ten
feet causesthe X-40 to sound an
alert. The range will then remain at
the previous setting.
50'
35-
5371-
100'
150'
200'
8°at3db
H8t
—it
-
NOTE: Themaximum depth capability of the X-40 dependson water
and bottom conditions plus the
qualityofthetransducerinstallation.
See the specifications for typical
bottom depth capability.
LOWER LIMIT
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11
LOWER LIMIT
MENU #4- DIGITALAVERAGING
LOWER
LIMIT
Tochange the lowerlimit, first
make certain theword "AUTO" Is offat
thetop ofthescreen. Thisindicatesthat
the automatic mode is off. (Note: This
also disables theautomatic sensitivity
function.) If theautomatic mode is on,
press theAUTO key onceto disableIt.
Next, pressthelowerlimitdesired from
10 to 9999 feet and press the LOWER
LIMIT key. Thedisplaywillimmediately
change to the new depth range and
Thedigital sonar used intheX40 is a highly sensitive device that gives
rapid updates of the water's depth.
Under most conditions, the bottom
contourchanges so quIckthat the displayappears to "Jitter". In otherwords,
thedisplaywillchange soquicklythat it
can be difficult to determine theactual
bottom depth. To minmize this condition,theX.40 averages thebottomreadings anddisplaystheresult. WhentheX40 is first turned on, averaging is enabled.
To disable it, press
displaythenewlowerlimitatthebottom
of the screen.
For example, to setthe range
from 0 to 80 feet, press 8,O,LOWER
2nd,COMMAND until menu 4 appears,
orpress 4,2nd,COMMAND. Next, press
the up or down arrow in the ZONE
ALARM section ofthe keyboard toturn it
offoron. Waitsixsecondsforthedisplay
to clear or press theCLEAR key to resume operation.
LIMIT.
NOTE: The maximum lower limit the X40 can display is 9999 feet.
However, the actual depth that it can reach Is dependent on water and
bottom conditions, plusthequality ofthetransducerinstallation.
When the X-40 changes rangeswhile intheautomaticmode, the
lowerlimitselected willalways bea multiple often. Inotherwordsthelower
limit will be a number that ends in zero such as ten, twenty,forty, one
hundred, etc.
UPPER LIMIT
MENU #6-SCC-page2O
MENU #7 - ZOOM SIZE (AUTOMATICBO1TOMTRACKING) - page 13
I UPPER
LIMIT
Often ft'sdesirable to expand or "ZOOM" asectionofthedisplay
toshowmoredetail. You cando this on theX-40 by usingthe Upper Limit
feature. - Tochangethe display'supperlimit, first makecertain that AUTO
is off. Then simplypress the desired depth (any numberbetween 0 and
9989feet). Next, press the UPPERUMITkey. Theonly restriction on the
upperlimitisthatitmustnotbeclosertothelowerllmttthan Ofeet. Inother
words,settingthelowerlimitto81 feet prevents theupperlimitfrom being
closerthan 71 feet. It requires atenfoot or largersegment. Remember,
you cannot change theupperlimit if the X-40 Is in automatic.
Set upper and lower limits in various combinations to show
segments anywhere betweenthe surface and the bottom. Thispermits a
scaleexpansion or "zoom"of a portion ofthedisplay.
I
12
MENU #5- PULSE WIDTH - page 22
MENU
#8- FEET/FATHOMS/METERS - page 21.
Thesefunctionsare printedin white on keysonthe keyboard.
For example press 2nd, 0 for the pulse width menu. However, they
were included in the Command section since they are available by
pressing the COMMAND key. Youcan also pressthe menu number,
thenthe2ndkey, thentheCOMMANDkey. Forexample, press5, 2nd,
COMMAND for the Pulse Width menu. Since these functionshave
been explained previously, please refer to the page numbers listed
abovefor Instructions.
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J
121
t
0
PULSE
PULSE
Thereisa relationship between
resolution and transmitter pulse length.
Resolution,in thiscase, isthe ability ofa C
sonar to separate targets. The shorter —
the pulselength, the betterthe sonar's
abilityto separatetargets. However, in
deepwater,the shorterthepulselength,
the less likely a return echo will be re- —
ceived. In fact, the X-40 automatically
increasesthe pulselengthas the range
increases. In shallow water, a narrow —
pulse length is beneficial, since the
probability ofechodetection ishigh. For
even better target separation, the X-40 —
gives you the capability to narrow the
pulse length furtherthan normal. Combinethenarrow pulselength withaten or -'
twenty foot segment or "zoom" and the
X-40displays small detail far better than
otherliquid crystal graphs.
To change to a narrow pulse,
press 2nd, 0. Usethe arrow keys in the
ZONE ALARM section to change to the
short pulseor normal pulse. Pres the CLEAR
orwaft several secondsforthedisplayto cI
your selection.
COMMAND
r1
il
I
TheX-40 has "menus"of command
theunittoyourneeds.Thereare8pagesofn
are accessedwiththe COMMANDkey. Pres
menu appears. Asyoucanseeonthenext
Volume. Thenumber "1" atthe bottomofth
MENU #2 - GRAYLINE
CHECKS OR LINES
Thismenu changestheGrayline
from a checkered pattern to lines. To
change, press 2nd, COMMAND, COMMAND until menu 2 appears, or press 2,
2nd, COMMAND. Next, pressthe upor
downarrowintheZONEALARMsection
ofthekeyboardforchecksorlines.Then
press CLEAR to activate the selection
and return to thechart display. Or waft
several seconds and the display will
automatically clear.
,._zSFNSIi!VtiY
CHANCE
PRESS
ALARM
J. tOR4
1
CRAYL INE
LINES
—4
-
Example: Settherangefrom40to80feet.
Press: 4, 0, UPPER LIMIT, 8, 0, LOWER
LIMIT.
When changing the upper or
lower limits, remember the minimum
distancebetweenthetwoistenfeet. For
example, the upperlimit is 10 feet, witha
lowerlimit of20feet. Changing thelower
limittol 1 feetwillcausetheX-4otosound
an alert. Theupperand lowerllmitswon't
change.
I2ND1
J
FOR NO
CHANCE
—v
PRESS.
CLEAR
SEWS/i
I
Y
To CHANCE
PRESS
— ALARM
tc4R4
J
SCALES
Turn the upper and lower limit
display off or on with this menu. Press
2nd, COMMAND until this menu appears, orpress3, 2nd, COMMAND. Use
the arrow keys in the ZONE ALARM
sectionto switchthenumbers off or on.
Press CLEAR to activateyour selection
or wait several secondsand it will automatically activate.
OFF
FOR NO
CHANGE
numberone. Pressthe COMMANDkeyagaii
S
To change menu selections, use
ALARM section of the keyboard. Once yot
—
—1
-.
MENU #3 - SCALES
D
PRESS
CLEAR
-
AUTOMATIC
8
BTMTRK
BOTTOM
TRACKING
The lowerlimitwillchange asthe
bottomdepth changes. When Automatic
BottomTracking isactivated,autosensitivityandtrackingare alsoturnedon. To
zoom in on the bottom andtrackIt as its
depth changes, followthesteps below.
Tousethisfeature, first choose
a zoomwindow. Forexample, lets use a
40 foot zoomwindow. This means that
theX-40 will keeptheupper limit 40 feet
above the lower limit. Automatically
placingthebottom signal inthiswindow,
theX-40tracksitas itmoves shalloweror
deeper. Nowpress4, 0, 2nd, BTM TRK.
TheX-40will chooseanupperand lower
limit that will place the bottom signal in
the 40 foot window. The bottom will
always be inside this window. If the
segment size is 40 feet or greater, the
windowlimitswill end in zero (10,20,30,
etc.). Otherwisethelimitsare in one foot
Increments.
If you simply press 2nd, BTM
the
X-40 displaysascreen describTRK,
H
TO CHANCE
PRESS
.
ALARM
t
—
OF
. ZOO,r,1
SIZE
tjF.
TO CHANCE
ZOOM SIZE
ENTER SIZE
THEN F'RES
2ND AND :3
0
L-
IS OFF
FOR NO
CHANCE
PRESS
CLEAR
—
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24
13
Ing how to activatethe AutomaticBottomTra
BottomTracking Is on, press the upor downar
ZONE ALARM sectionto incrementor decreni
example, ifthewindowsize is currently20feet,
press theuparrowintheZONE ALARMsection
to30feet. If thedown arrowwas pressed, the ',I
to 10 feet. Ifthe X-40's range is in fathoms, ti
windowsize In 2 fathom steps. If ft's in meters
in 4 meterstepswith each press ofthearrow
To exitfrom this function, press 0, 2nd
BTM TAK. Or press the AUTO keytoturn off
GRAYLINE
S
1GIIAYLIN9
Ø
r
The GRAYLINE functions tells the
displayed on the screen. It also gives clues
bottom. In other words, you can tell ifthe boti
bottom returnsastrong signal causingawide
weedybottomreturnsaweakersignal which
SENSTI7ITY
II DIGITAL
iO ISHALLOWI
ALARM I ALAflI
10th
EJWVfTY -ml
C
I—
I
To viewthe 8CC level withoutchanging it, simply press 2nd, 8CC.
The digital sonar normallydisplays the bottom depth in whole nurnbert Displaythebottomdepthintenths
of a foot in waterless than 100 feet by
pressing 2nd, 10th. Ifthe bottomdepth
goes deeper than 99.9 feet, the digital
sonarwillautomaticallydisplayin whole
numbers again. If the chart is in the
freeze mode, the digital display will
continue to showthe bottomdepth as it
changes. It does not freeze whenthe
chart does. Thus, you can distinguish
alarms.
shallowwaterwarningsfromfish
Press 2nd, 10th to turn tenths
off.
i
GRAYLINE: OFF
pressing a key and itwillautomatically erase.
DEEP
DEPTH' —
DIGITAL BO1TOM
ALARMS
TheX-40hastwodifferent alarms, azonealarm and a digital
depth
alarm. Thezonealarm consistsofa bar thatdisplays ontheleft sideofthe
screen. The alarm sounds an alert whenever the X-40 detects an echo
inside the boundaries of the zone bar.
To turn 8CCoff, press 0, 2nd, 8CCor CLEAR,2nd, 8CC.
tI2ND]
I
FEET-FATHOMS-METERS
—
TheX-40 candisplaythe depth in
eitherfeet, fathoms, or meters. Atfirst, the
display reads in feet. To change it to
fathomsor meters, press 2nd, FT/FA/M.
A menu appears with the current mode
highlighted. Use the arrow keys in the
zonealarm sectionto switchto meters or
fathoms. Pressthe CLEARkeytoactivate
the selection or wait several secondsfor
themenutodisappear. TheX-40 revertsto
feetwhen ft'sturnedoff.
Thedepth alarm hasuserselectable upperandlowerlimits. Unlike
thezonealarm, this alarm only sounds onthe bottomsignal. Italarmswith
a highpitchedtonewhenthebottom echo is detected ator shallowerthan
the alarm's upperlimit. It sounds with alow pitched tonewhenthe bottom
echois detectedat or deeperthan thealarm's lower limit.
1T:
NOTE KEY
t_!!!tl
The note keyturnsthe audible tone offand on. Turning the alarm
on enables the audibletone. Thenotedisplayatthebottom
ofthescreen
ison, also. To turntheaudibletone off, press thenote key onthe keyboard
once. The note displaywill turn off. To turn it backon, press the note
key
again. Thisdoes not change anyalarm settings, it merely turnsthe sound
9
FT/FA/Il
-
-.
TO CHTh.;E
PRESS
E4LARN
1• OR 1..
FOR NO
CHANCE
F'F:ESS
C!.EAR
0
off.
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14
16
21
1e'L1.W
Discrimination desired, (0 through10). Then press the DISCkey. There
should be an immediate change in the noise displayedon thescreen.
Turn
SHALWW
SET
ZONE ALARM
Discrimination off by pressing 0,DISC or CLEAR,DISC.
DISC key.
I
Sec
I
SURFACE CLARITYCONTROL
The markings --or noise—at the
top of the display can at times extend
manyfeet below thesurface. This can
interfere withfish signalsorothertargets.
These markings are Surface Clutter and
are caused by waveaction, boat wakes,
bait fish, temperature Inversions, and
otherreasons.
Use Surface Clarity Control
to
reduce or eliminate surface
(SCC)
clutter. SOC varies the gain of the receiver between each transmit pulse,
while the receiver is "listening" for the
return echoes. Thegainisthelowestfor
echoes nearthe surface. It gradually
increases as the depth increases. The
maximum depth that SOC will affect is
one-half oftheselecteddepth range. For
example, with maximum SCC, on a 0 to
60 foot range, SCCwouldhaveaneffect
from thesurface to 30 feet.
sr:.Ns 1.'t/lT'-!:,._
L
—
PRESS
I
-4 THERE
FWE
10 LE"EL3
OF 'ECC
0OFFIURh.E'
9CC
CHANGE
4 TO
3CC PRESS
0-10 ZND
F
SCC hasten leveis of adjustment. Turning the X-40 onautomaticaily sets SCC to level 1. To change to a different ievel, simplyentera
numberfrom0to 10, then press 2nd, SOC or simplypress2nd, SCC. The
SCC menu appears with the level of SCC currentlyin use. Use the arrow
keys inthe keyboard's zone alarm section toincrease ordecrease theSOC
levei. Pressthe CLEARkeyto erasethe menu orwait severai seconds after
ii)
__________________
________________
____________
r.
r
ZONE ALII
;•
)'[
8H
HI
FOR NO
C HHt4CE
PRESS
CLEAR
DISPLAY
To adjust the shallow (top)
alarm, press the SHALLOW SET key.
Theletters "ZN' displayonthe screen. A
vertical bar also displays on thefar left
side of the screen. This is the zone
alarm's"window". Any echothatappears betweenthetopand bottom of
this barwillsoundthealarm. Toadjustthetopofthebarpress the uparrow
keyto movethetop ofthealarmwindowup, orthedownarrowkeyto move
thetopofthebardeeper. Thelongeryouholdthearrowkey, thefasterthe
end of the zone alarm bar will travel. Release the key and in six seconds
thezonealarm barwilldisappear. However,thezonealarm isstill activated
as you can seebytheletters "ZA" in the lower portionof the screen.
TUFt
ECL
I
dow."
TO CHANGE
I
t
To settheZoneAlarm, press the
SHALLOWSET keyintheZONEALARM
sectionofthekeyboard. Theletters"ZN'
display in the iower ieft corner of the
screen. A verticalbar also displays on
theleftside ofthe screenforsixseconds.
This is theZone Alarm's "window."Any
echothat appears onthe rightside ofthe
screen between the top and bottom of
thisbarwill soundtheaiarm. Adjustboth
the shallow and deep ends ofthis barto
make a smaller or larger alarm "win-
To viewthe Discrimination setting without changing it, pressthe
[2'1
T
.t&'
Al I
b
Thebottom ofthezonealarm bar isadjusted in the same manner.
Just press theDEEP SET keyfirst,then thearrow keys tosetthe bottomof
the bar to the desired depth.
If you wish to viewthe zonealarm bar continuously, press 2nd,
DISPLAY. To turn it off, press 2nd, DISPLAYagain. Thiswon't affect the
zone alarm settings. It doesn't turn the alarm off, just the alarm bar.
When thezonealarm istriggered by an echo, thealarmwill sound
the
words
ZONEALM will appear on thedisplay.
and
If the range is changed, the zonealarm settingsmay need to be
changedalso, sincetheydon't trackthe range settings.
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TotumtheZoneAlarmoff, pressCLEAR,SHALLOWSETorDEEP
SET. All oftheZoneAlarm settings will remain inmemoryuntil theX-40 is
turnedoff. Pressing eithershallowordeep setkeyswillturntheZoneAlarrn
back on with theprevious settings.
DEPTH ALARM.
I DIGITAL ISHAU.OW
ALARM
IflND1
J
LIGHT
J
A light Is allowsoperation oftheX-40 at night. Atfirst, turningthe
uniton causesthe lightstoflashforsixseconds.Pressthe2nd, UGHT keys
and thelightswill stay on. Toturnthe lights off, pressthe2nd, LIGHT keys
again. Thelights will also go out whenthe X-40 is turned off.
DIEP
ALARM
Thedepth alarm is actually twoalarms. The shallow alarm gives
awarningwhenyou'reinwatershallowerthanthealarm setpoint. Thedeep
alarm gives a warningin water at ordeeperthanthe alarm set point. The
bottom signal is the onlyecho that will trigger either theshallowor deep
DISCRIMINATION
Lm]
Unwanted noise on the display is a fairly common complaint.
Noise is any undesired signal. It can be caused by either an electrical or
acousticsource, oracombination ofthetwo. In both cases, the noisecan
produceunwanted markson the display.
alarm.
NOTE: Inorderto usethedepth alarms, eitherthedigitalorautomaticmust
be on.
TheX-40 hasDiscriminationwhichis effective In combatingnoise
It processes all incoming echoes fromthereceiver, determines
which onesare noiseand eliminates them, displaying only thelegitimate
echoes. Discrimination hasten levels -0 through 10. 0 is off, 10 is the
signals.
Sellingboth the shallow and deep alarmsatthesame timeallows
a "window" to be positioned betweenthesurface and the bottom. Ifthe
boat goesIntowaterthat is shallowerthan theshallow alarm'sselling, the
alarmwillsound. Adifferenttonewillsound ifthebottom goesdeeperthan
the deep alarm setting. This makes a useful anchor watch. It is also
convenient when navigating througha channel.
highestlevel. TurningtheX-4oonautomaticallysets Discriminationtolevel
1.
If too much noise is present on the display, press the level of
DIscRIMINATIoN:OFF
To usetheshallow alarm, enterthe desired depth on the 10-key
pad,thenpresstheSHALLOWALARMkey. Forexample, tosettheshallow
alarm to 15 feet, press 1,5,SHALLOWALARM. Thenumber15 displays on
the screen as it'sentered, then disappears. Theletters "DA"appearinthe
lowerportionofthescreen toindicateit isactivated. Nowifthe boat moves
into water fifteen feet deep or less, the alarm will sound and thewords
"SHALALM" will flashon the display.
DIscRIMINATIoN:PROPERSEllING
Nsfl-fv1Ty-—-—--—-.
¼_.
The deep alarm is used in the same manner. Enterthe desired
depth,then presstheDEEPALARMkey. Forexample, tosetthe deepalarm
to 50 feet, press5, 0, DEEP ALARM. If theboat moves intowater50 feet
deep or deeper, thealarm will sound. Thewords "DEEP ALM" also flash
on thedisplay.
—H
b
To view the settings of the shallowor deep alarms, press the
SHALLOW ALARM or DEEPALARM keys.
FAUTÔ1
LIGHT
ii
To turn each alarm off, press 0, SHALLOW ALARM or 0, DEEP
ALARM. TheCLEARkeycanbe used inplaceofthe0 key, ifdesired. Ifboth
shallowanddeepalarmsareturnedoff,theletters "DA" will disappearfrom
the display.
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