General Technologies Corp GTC505 User manual

Brand: General Technologies Corp

Model: GTC505

Type: User manual

General Technologies Corp GTC505 is an engine ignition analyzer that measures and displays various parameters of an engine's ignition system, helping diagnose problems and optimize performance. It features a 3.5" TFT LCD display, rechargeable battery, and multiple measurement modes, including tachometer, spark burn time, spark plug voltage, dwell angle, and ignition coil primary current ramp time. The device can be used on 2 or 4 stroke engines with coil on plug, coil near plug, DIS, waste spark, conventional, and magneto ignition systems.

User’s Handbook

ENGINE IGNITION ANALYZER

Table of Contents

1. Safety Rules Page 1

2. Technical Specications Page 2

2.1 Generalspecications     Page2

2.2 Electricalspecications    Page2

3. General description Page 3

3.1 Instrumentdescription     Page3

3.2Displaydescription     Page3

4. Buttons, icons and menus operation Page 4

4.1POWER/CLEARbuttonandmenu   Page4

4.2CYCLEbuttonandmenu    Page4

4.3 MODEbuttonandmenu    Page5

4.4VIEWbuttonandmenu    Page5

4.5HOLDbuttonandmenu    Page6

4.6Tachometerreadings     Page6

4.7Batterylevelindicator     Page6

5. Measurement modes Page 7

5.1EngineRPM      Page7

5.2Sparkburn(ring)time    Page7

5.3 Sparkplugvoltage     Page7

5.4Dwellangle      Page7

5.5Ramptime      Page7

6. Display views Page 8

6.1Chartview      Page8

6.2Comparisonview     Page8

6.3 Digitalview      Page9

6.4WaveformView     Page10

7. Measurement procedures Page 11

7.1Flexibleprobeandpick-upsetup   Page11

7.2Measuringcoilonplugandcoilnearplugignitionsystems Page11

7.3Measuringignitionsystemswithsparkplugwires  Page12

8. Recharging the instrument Page 13

9. Maintenance Page 14

10. Warranty Page 14

1. SAFETY RULES

•

Thisinstrumentisdesignedforindooruseattemperaturesbetween32°and104°F(0°Cand

40°C)andaltitudesupto6500ft(2,000meters).

•

 Toensurethattheinstrumentisusedsafely,followallsafetyandoperatinginstructionsinthis

operationmanual.Iftheinstrumentisnotusedasdescribedinthisoperationmanual,thesafety

featuresofthisinstrumentmaybeimpaired.

•

 Donotusetheinstrumentiftheinstrument,thepick-upsortheexibleprobelooksdamaged,

orifyoususpectthattheinstrumentisnotoperatingproperly.

•

 Whenusingtheinstrument,keepawayfrommovingparts(fan,drivebelts,etc)andhotobjects

(exhaustpipes,mufer,catalyticconverter,etc),toavoidpersonalinjuriesanddamagetothe

instrument,thepick-upsandtheexibleprobe.

•

 Donotconnectanythingotherthatthepick-upssuppliedwiththeinstrumentorapplymore

thanACorDCpowertothepick-uportheexibleprobeconnectors.

•

 Atalltimes,toavoidelectricalshock,useCAUTIONwhenworkingwithelectricalcircuitsabove

60VDCor25VACrms.Suchvoltagesposeashockhazard.

•

 DonotoperatethisinstrumentwhileconnectedtotheACpoweradaptororanyotherdevice.

•

 Toavoidelectricalshockordamagetotheinstrument,donotexceedthespeciedinputlimits.

Exceeding the limits listed above when using this apparatus, or not observing the

precautions listed above can expose you to physical injury and permanently damage

your instrument and/or parts and components of the vehicle under test.

Page2

2. TECHNICAL SPECIFICATIONS

2.1 General specications

Display: 3.5”TFTLCD,320x240pixelsresolution.

Framerate: Upto30timespersecond.

Ignitionsystemcomp.: Coilonplug,coilnearplug,DIS,wastespark,conventional,

andmagneto.

Enginecycle: 2or4strokes.

Power(internal): 3.2volt/1500mAh,rechargeableLiFePO4battery.

Autopoweroff: Automaticallypowersoffafter3min.ofinactivity.

Batterylife: Approximately6hoursofcontinuousoperation.

USBconnector(input): MicroUSB(5Volt/0.5AmperesDC).

Probelength: 13.5”(34cm)includingpick-up.

Dimensions: 6.3”x3.9”x1.3”(160x99x34mm)withoutprobe.

Weight: Approximately14oz.or406gwithoutprobe.

Includedaccessories: Sparkplugwirepick-up,coilonplugpick-up,BNCexibleprobe,

protectiverubberholster,paddedhardcarryingcase,microUSB

cable,ACpoweradaptoranduser’shandbook.

2.2 Electrical Specications

•

Thespecicationsbelowaretypicalat23°C,andwillvaryslightlyfromdevicetodevice,

and with temperature.The input voltage should not exceed the indicated maximum

values,topreventpersonalinjuryordamagetotheinstrument.

MeasurementMode MeasurementRange Accuracy/Resolution

Tachometer

400to19999RPM

2and4cyclesandDIS

Accuracy:0.5%±1LSD

Sparkplugvoltage(kV) 0to50kV Resolution:±0.01kV

Sparkburn(ring)time 0to12ms Resolution±0.05ms

Dwellangle

0to>270°(4stroke/600RPM+)

0to>180°(2stroke/750RPM+)

Resolution:±0.1º

Ramptime(Ignitioncoil

primarycurrentramptime)

0to35ms Accuracy:±0.05ms

Page3

3. GENERAL DESCRIPTION

3.1 Instrument Description

3.2 Display description

Fig.1-Instrumentdescription

Fig.2-LCDDisplay

01607 RPM

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-4 -2 0 2

Enginecycle

setting

Mode

setting

Display

setting

Tachometer

reading

Battery

level

Statusindicators

Measurement

displayarea

MicroUSBconnector

LCDdisplay

POWER/CLEARbutton

CYCLESbutton

MODEbutton

BNCconnector

Protectivehoster

HOLDbutton

VIEWbutton

Page4

4. BUTTONS, ICONS AND MENUS OPERATION

4.1 ‘POWER/CLEAR’ button

•WhentheinstrumentisOFF,toturnitONpressandholdthe‘POWER/CLEAR’

buttonuntiltheunitturnson(inapproximately1second).

•WhentheinstrumentisON,toturnitOFFpressandholdthe“POWER/CLEAR’

buttonuntilthedisplayturnsOFF(inapproximately3seconds).

•When the instrument is ON, press the ‘POWER/CLEAR’ button to clear all

measurementdata,andstartanewmeasurement.Thisoperationcanbealso

beperformedtore-scalethemeasurementsandoptimizeviewinginthedisplay.

•The ‘AutoPowerOff’feature will automaticallyturntheinstrument offafter 3

minutesofnobuttonbeingpressedor15secondsafterthelastsparksignalwas

detected.Turningtheunitoffmanuallywhennotinusewillprolongbatterylife.

4.2 ‘CYCLE’ button and menu

• The‘CYCLE’buttonallowsselectionofthenumberofstrokescorrespondingto

theengineundermeasurement.Uponpressingthisbutton,apulldownmenu

willopenwiththecurrentsettinghighlighted,Tochangethesettingpressthe

‘CYCLE’buttonrepeatedlyuntilthecorrectsettingishighlighted,thenwaituntil

thepulldownmenucloses.Thenewsettingwillbedisplayedasthecycleicon

atthetopofthescreen.

01607 RPM

-5

-4 -2 0 2

4 Stroke

2 Stroke

Waste Spark

Fig.3-Enginecycleselectionmenu

2strokeenginecycle

4strokeenginecycle

DISorwastesparkignitionsystem

Page5

4.3 ‘MODE’ button and menu

 The ‘MODE’button allows the selection of the type of measurement to be

showninthedisplay.Uponpressingthisbuttonapulldownmenuwillopenwith

thecurrentsettinghighlighted,Tochangethesettingpressthe‘MODE’button

repeatedlyuntilthedesiredsettingishighlighted,thenwaituntilthepulldown

menucloses.Thenewcurrentsettingwillbedisplayedasthemodeiconatthe

topofthescreen.

01607 RPM

-5

-4 -2 0 2

Burn Time

Dwell

Tachometer

Voltage

Fig.4-Measurementselectionmenu

Measuring/displayingsparkburn(ring)time.

Measuring/displayingdwellangleorramptime(automaticallyselected

dependingontheconnectedsensor).

Measuring/displayingRPM(tachometer).

Measuring/displayingsparkplugvoltages.

4.4 ‘VIEW’ button and menu

 The’VIEW’buttonisusedtoselecthowthechosenmeasurementwillbe

showninthedisplay.Uponpressingthisbuttonapulldownmenuwillopen

withthecurrentsettinghighlighted.Tochangethesettingpressthe‘VIEW’

buttonrepeatedlyuntilthedesiredsettingishighlighted,thenwaituntil

thepulldownmenucloses.Thenewsettingwillbedisplayedasthedisplay

iconatthetopofthescreen.

Page6

01607 RPM

-10

-4 -2 0 2

Chart

Comparison

Digital

Waveform

Fig.5-Displaymodeselectionmenu

Chart(i.e.trendline)view.

Comparisonview.

Digitalandanaloggaugereadouts.

Waveform(i.e.oscilloscope)view.

4.5 ‘HOLD” button

· Whenchart,digitalorwaveformdisplaymodeisselected,pressingthe‘HOLD’

buttonwillpausethemeasurement,holdthecurrentdisplay,andtheword

“HOLD”willbeshowninthemeasurementareaofthedisplaytoindicatethis

status.Pressthe‘HOLD’buttonagaintoresumenormaloperation.

· Wheninthecomparisondisplaymode,thisbuttonisusedtoinitiateandstopa

measurement.Fordetailssee‘6.2Comparisonview’.

4.6 Tachometer reading

DigitalreadoutoftheengineRPM.

4.7 Battery level indicator

Thebatterylevelindicatorprovidesanapproximateindicationofthestateofchargeof

theinternalbattery,asfollows:

Full

Empty

NOTE: Theinstrumentwillturnautomaticallyoffifthebatteryvoltagefallsbelowthe

absoluteminimum.

Page7

5. MEASURING MODES

There are four different ignition system parameters that can be selected for

measurement,dependingontheengine’signitionsystem:

•EngineRPM.

•Sparkburn(ring)time.

•Sparkplugvoltage.

•Dwellangles(forignitionsystemsequippedwithhighvoltagesparkplugwires).

• Primaryignitioncoilcurrentramptime(forcoilonplugandcoilnearplugignitionsystems).

5.1 Engine RPM

MeasuresengineRPM(revolutionsperminute)in2and4strokeengines,andmaybe

usedincombinationwithothermeasurementstoevaluateignitionsystem

performanceatdifferentenginespeeds.

5.2 Spark burn (ring) time

The spark burn time, also called “ring time”, is the measurement of the period from

themomentasparkisinitiateduptothepointwhenitisextinguished,andisthemost

indicativemeasurementofperformanceoftheignitionsystem.Abnormallylongorshort

burntimesmayindicatesomeproblemintheignitionmodule,sparkplug,fuelmixture,

cylindercompression,etc.

5.3 Spark plug voltage

Sparkplugvoltagevaluesareusefulforcomparingtheperformanceoftheignitionsystem

betweencylinders.Thismaybeusedtodiagnosecommonproblemslikemisres,broken

sparkplugwires,etc.Sparkplugpeakvoltagesmayvarywidely,arelessconsistentand

notalwaysindicativeofaproperlyworkingignitionsystem.Ontheotherhand,observation

ofthesparkplugvoltagewaveformortrendmayproveusefulindiagnosingignitionand

mechanicalproblems.

5.4 Dwell angle (for ignition systems using spark plug wires only)

Dwellangleisameasurementoftheangleofrotationofthecrankshaft,betweenthemoment

inwhichtheprimaryoftheignitioncoilisenergized(e.g.pointcontactsclosed)andthe

sparkisgenerated(e.g.pointcontactsopened).Itsmainuseisindeterminingifthereis

enoughangle(ortime)toenergizetheprimaryoftheignition,andnotsomuchastocause

theignitioncoiltooverheatandfail.Dwellanglesarespeciedforaparticularengineand

RPM,andusuallyadjustedinthemechanicaldistributor/pointassembly.

5.5 Current ramp time (for coil on plug and coil near plug only)

Ramp time is measured from when the primary coil current rst begins to increase to

whenitstopsincreasing.Thecurrentmaystopincreasingbecausethecoilhasreached

itssaturationpoint,oritisinterruptedtogenerateaspark.

Ramp timemeasurements are useful fordiagnosing problems in theprimary circuit of

theignitionmodule.Abnormallylongramptimesmayindicateexcessiveprimarycircuit

resistance,lowinputvoltage,thatthewrongmoduleisinstalled,etc.Shorterthannormal

ramptimesmayindicateashortedprimarycoil,thatthewrongmoduleisinstalled,etc.

Page8

6. DISPLAY VIEWS

Therearefourviewsthatcanbeselectedtodisplaymeasurements:

•Chart

•Comparison

•Digital

•Waveform

6.1 Chart view

Thisviewdisplaystheselectedmeasurement’svaluecorrespondingtoeachofthelast276

sparks,withtheleftmostmeasurementbeingtheoldest,andtherightmostthenewest.The

measurementscaleandunitsarelocatedontheverticalaxis,atthefarleftofthedisplay.

RPM

01607

RPM

Fig6-Chartmodedisplay

• ‘POWER/CLEAR’ button:

PressingthePower/Clearbuttonclearsallvaluesinthechart,andre-scalesthechart

ifnecessary.

• ‘MODE’ button:

Pressingthe‘MODE’buttononcewillopenthemodemenu,andhighlightthemeasurement

modecurrentlyselected;pressingthe‘MODE’buttonagainwhilethemenuisopenwill

selectthenextavailablemeasurementmode.Allfourmeasurements(sparkburntime,

RPM,sparkplugpeakvoltage,dwellangleandramptime)aresimultaneouslytracked

andstored,andareavailableforviewingatanytime(withoutdelay).

• ‘HOLD’ button:

Pressingthisbuttonwillpausethecurrentmeasurement,andholdthedisplayinitsthe

currentcondition.Pressingthe‘HOLD’buttonagainwillresumenormalmeasurement.

6.2 Comparison view

This modeallows the comparison of setsof values (minimum,average and maximum

measurements)betweenseveralcylinders,undervarioustestingconditions,andinmany

othersituations.Themeasurementsaredisplayedfromlefttoright,withtheleftmostsetof

valuesbeingtheoldest,andtherightmostthenewest.Anewsetofvaluesisaddedevery

timethe‘HOLD’buttonispressedtwice(start/stop)anduptothelast12setsofvalueswill

beshowninthegraphatonce,ifthismaximumisexceeded,theoldestsetwillbedeleted

andanewsetadded.Themeasurementscaleandunitsarelocatedontheverticalaxis,

atthefarleftofthedisplay.

Page9

01607

RPM

Maximum

Average

Minimum

Oldestset

Newestset

Fig.7-Comparisonmodedisplay

• ‘POWER/CLEAR’ button:

 Pressingthe‘POWER/CLEAR’buttonclearsallmeasurements,andre-scalesthechart

ifnecessary.

• ‘MODE’ button:

 Pressingthe‘MODE’buttononcewillopenthemodemenu,andhighlightthemeasurement

modecurrentlyselected;pressingthe‘MODE’buttonagainwhilethemenuisopenwill

selectthenextavailablemeasurementmode.Allfourmeasurements(sparkburntime,

RPM,sparkplugpeakvoltageanddwellangleandramptime)aresimultaneouslytracked

andstored,andareavailableforviewingatanytime(withoutdelay).

• ‘HOLD’ button:

 The‘HOLD’buttonwhenpressedoncepausesmeasurementandholdsthedisplay

initscurrentcondition(whiledisplayinga“HOLD”labelinthecenterofthescreen).

Pressingthe‘HOLD’buttonasecondtimewillremovethepause(andlabel),andadd

anewsetofvaluesattherightofthescreen,whichwillkeepupdatinguntilthe‘HOLD’

buttonis pressedagain.This cyclerepeats everytime thebutton ispressed twice

(start/stop)anduptothelast12setofvalueswillbeshowninthedisplayatonce,if

thismaximumisexceededtheoldestsetwillbedeletedandanewsetadded.

6.3 Digital view

Thisviewprovidesdigitalandanaloggaugereadoutsfortheselectedmeasurement,as

wellasdigitalreadoutsfortheotherthreemeasurements.

Fig.8-Digitalmodedisplay

• ‘POWER/CLEAR’ button:

 Pressingthe‘POWER/CLEAR’buttonclearsallvaluesinthegraph,andre-scalesthe

gaugeifnecessary.

• ‘MODE’ button:

Pressingthe‘MODE’buttononcewillopenthemodemenu,andhighlightthemeasurement

modecurrentlyselected;pressingthe‘MODE’buttonagainwhilethemenuisopenwill

selectthenextavailablemeasurementmode.Allfourmeasurements(sparkburntime,

RPM,sparkplugpeakvoltageanddwellangleandramptime)aresimultaneouslytracked

andstored,andareavailableforviewingatanytime(withoutdelay).

• ‘HOLD’ button:

 Pressing this button will pause measurement, and hold the display in the current

condition.Pressingthe‘HOLD’buttonagainwillresumenormalmeasurements.

6.4 Waveform View

Thismodedisplaysthesignalamplitudeovertime(likeanoscilloscope).Thescaleand

unitsofthemeasurementarelocatedontheverticalaxis,atthefarleftofthedisplay.The

timescaleandunitsareshownbelowthehorizontalaxis,atthebottomofthescreen.

01607 RPM

-10

-4 -2 0 2

Fig.9-Waveformdisplay

• ‘POWER/CLEAR’ button:

 Pressingthe‘POWER/CLEAR’buttonclearsallvaluesinthegraph,andre-scalesthe

graphifnecessary.

• ‘MODE’ button:

 Pressing the ‘MODE’ button once will open the mode menu, and highlight the

measurementmodecurrentlyselected;pressingthe‘MODE’buttonagainwhilethe

menuisopenwillselectthenextavailablemeasurementmode.Thewaveformgraph

focusesontheareaofthesparkwaveformwhichismostrelevanttothemodeselected.

• ‘HOLD’ button:

 Pressingthisbuttonwillpausethecurrentmeasurement,andholdthedisplayinthe

currentcondition.Pressingthe‘HOLD’buttonagainwillresumenormalmeasurement.

Page10

7. MEASUREMENT PROCEDURES

CAUTION

To avoid personal injuries and damage to the instrument carefully inspect the

spark plug wires, distributor cap, ignition coil , ignition module, and all other

ignition system parts for damage or leaks, and avoid using this instrument in

case any damage or leaks are found. Never touch the capacitive pick-up or

exible probe during a test.  Wear insulating gloves when working around high

voltage, and hot parts, and keep away from moving parts (fan, drive belts, etc)

and hot objects (exhaust manifold and pipes, mufer, catalytic converter, etc.)

7.1 Flexible probe and pick-up setup

Thisinstrumentissuppliedwithaexibleprobe,andtwotypesofpick-upsensors:

• Flexibleprobe:equippedwithaBNCconnectoratoneendandabarrelconnectorat

theother.

• COPpick-up:formeasuringcoilonplugandcoilnearplugignitionsystems.

• SPWpick-up:forallignitionsystemswhichusehighvoltagewires(sparkplugwires)

toconnecttheignitioncoilordistributortothesparkplug.

COPpick-up SPWpick-up

Flexibleprobe

Fig.10-Pick-upconnectiontoexibleprobe

1- ConnecttheprobetotheinstrumentusingtheirBNCconnectors.

2-InsertandrmlypresstheappropriateCOPorSPWpick-upintothebarrelconnector

oftheprobe.

NOTE: Theinstrumentwillautomaticallydetectandcongurethepick-upconnectedtothe

probe.Usingthewrongpick-upfortheignitionsystemundermeasurementmay

leadtoerroneousreadings,ornoreadingsatall.

7.2 Measuring coil on plug and coil near plug ignition systems

1-Ensuretheinstrumentisturnedoff.

2-InserttheCOPpick-upbarrelconnectorplugintotheexibleprobereceptacle,removing

theSPWpick-upifnecessary.

3- Turn the instrument on and select the appropriate cycle for the engine under

measurement.

4-Selectthedesiredmodeandview.

5- PlacetheCOPpick-uponthetopandcenteroftheignitionmodule(asshowninthe

Fig.11),andobservewhethertheinstrumentisabletodetectanddisplaythedesired

measurement.

Page11

COPpick-up Ignitionmodule

Fig.11-UsingtheCOPpick-uponaignitionmodule

6-Iftheinstrumentisunabletodetecttheignitionsystemsignal,itmaybenecessaryto

repositionthepick-upsothataconsistentsignalisdetectedanddisplayed.

NOTES

• The position of the pick-up and the particular design of the ignition module may

affect the signal’s shape shown when the waveform display is selected. In order to

comparewaveformsbetweenseveralcylinders’ignitionmodules,theplacementofthe

pick-uprelativetotheignitionmoduleshouldbekeptasconsistentaspossibleforall

themeasurements.

•In some engines, the ignition modules are located very close together, and in rare

occasions this could cause the instrument’s pick-up to detect signals from nearby

modules,leadingtoinconsistentmeasurements.Thiscanusuallybesolvedbychanging

theplacementororientationofthepick-upontheignitionmodule.

7.3 Measuring ignition systems with (high voltage) spark plug wires

1-Ensuretheinstrumentisturnedoff.

2-InserttheSPWpick-upbarrelconnectorplugintotheexibleprobereceptacle,rst

removingtheCOPpick-upifnecessary.

3-Turn the instrument on, and select the appropriate cycle for the engine under

measurement.

4-Selectthedesiredmodeandview.

5-Placethesparkplugwireintotheslotofthepick-up,andasfaraspossiblefromother

sparkplugwirestryingtomaintainarightangle(90°)betweenthepick-upandthewire.

SparkplugwireSPWpick-up

Fig.12-UsingtheSPWpick-uponasparkplugwire

6-Iftheinstrumentisunabletodetecttheignitionsystemsignal,itmaybenecessaryto

repositionthepick-upsothataconsistentsignalisdetectedanddisplayed.

Page12

Page13

NOTES

• Theabsolute sparkplug voltage readingwill dependon theposition of thepick-up,

theparticularcharacteristicsofthewire,etc..Thereforetheplacementofthepick-up

relativetothewireshouldbekeepasconsistentaspossibleforallthemeasurements

inordertocomparevoltagereadingsbetweenseveralcylinders’sparkplugwires.

•Sparkburntime,dwellangleandRPMmeasurementsarenotsensitivetotheexact

positionofthepick-uprelativetothesparkplugwire,butthepick-upmustbepositioned

sotheinstrumentiscapableofdetectingthesignal.

• When several spark plug wires are routed or bunched close together, the

capacitivepick-upmayreceivesignalsfromtwoormorewiressimultaneously,which

couldcauseerroneousmeasurements.Inthesesituationsitisnecessarytoseparate

thewireundermeasurementfromtheothers,inordertoreduceinterferenceandobtain

anaccuratemeasurement.

8. RECHARGING THE INSTRUMENT

1-Ifstilloperating,turntheinstrumentpoweroff.

2-Locateandlifttherubbercap(attachedtotheprotectiveholsterandlocatedbesides

theBNCconnector)torevealthemicroUSBreceptacle.

BNCConnector MicroUSBconnectorcap

Fig.13-Instrument’sconnectors

3-InserttheUSBchargercable’smicroUSBplugintothereceptacleoftheinstrument

matchingtheorientationoftheconnectors.

4-InserttheUSBtypeAconnectorofthecableintotheUSBportofthesuppliedUSB

powerchargeradapter,andplugthepoweradapterintoanACpoweroutlet.

5-Uponstartofchargingthebattery,thedisplaywillshowthecharginginprogressicon

andthescreenwillturnoffafterafewseconds.

CharginginprogressChargingcomplete

Fig.14-Chargingindicators

Page14

6-Iftheinstrumentisturnedon(bypressingthe‘POWER/CLEAR’button)atanytime

whileconnectedtothepoweradapter,theinstrumentwilldisplaythechargingstatus.

7-TheUSBtypeAconnectorcanbealsopluggedintoaUSBportofapersonalcomputer,

poweredUSBhub,oranyotherUSBcompliantpowersource.

5-Therechargetimewilldependonthestateofchargeofthebattery,anditmaytakeup

to6hourstofullyrechargeadepletedbattery.

NOTES

•If the instrument has not been used for a long time, or the state of charge of the

batteryhasfallentoacriticallylowlevel,aperiodofpre-conditioningofthebatteryis

automaticallyaddedtothenormalchargingcycle,whichincreasesthechargingtime

inordertorestorethebatterycapacitytoitsmaximum,Nouserinterventionisneeded,

andthisprocessisautomaticallycarriedoutbytheinstrument.

•Ifthe batteryiscompletely depleted, pressingthe power onbutton will notturn the

instrumenton,anditmustberechargedbeforeitcanbeusedagain.

9. MAINTENANCE

Keeptheinstrumentinitscarryingcasewhennotinuseanddonotsubjectittodampness

orsevereheatorcold.Donotusetheinstrumentintherain,ifitshouldaccidentallyget

wet,dryitoffwithacleanpapertowelbeforestoringitaway.

Protecttheunitfromcontactwithanysolvents.Nevercleanwithasolventorpetroleum

basedmedium such as gasoline, as these chemicals may attackthe plasticparts and

causepermanentdamage.Neveruseanabrasivecleaner.Cleaningshouldbelimitedto

wipingwithacleandamppapertowelandasmallamountofsoapifrequired.Drytheunit

thoroughlyafteranycleaning.

The unit is a sealed instrument, and contains no user serviceable parts. Opening this

instrumentwillvoidthewarranty.

10. WARRANTY

Thisinstrumentcarriesaone(1)yearwarranty(fromthedateofpurchasebytheoriginal

owner)againstdefectsofmaterialorworkmanship.FordetailsseeourStandardWarranty

Informationonourwebpageatwww.gtc.caor,requestaprintedcopy.

Part#GTC505MN1602EN

PrintedinCanada

#121-735072ndStreetTel:(604)952-6699

Delta,BC Fax:(604)952-6690

CanadaV4G1H9 email:[email protected]

“SmarTach”,“VReady”,“GTC505”and“GTC”aretrademarksofGeneralTechnologiesCorp.

Tovisitourwebsite,scantheQRcodebelowwithyoursmartphone.

Ortypeinyourbrowser:

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General Technologies Corp GTC505 User manual

General Technologies Corp GTC505 User manual

General Technologies Corp GTC505 User manual

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