Extech Instruments TKG100 Manuel utilisateur

Quick Start Guide

Ultrasonic Thickness Gauges

Models TKG100 TKG150 & TKG250

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ExtechInstruments

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TKGSeriesQuickStartGuide‐ENv3.411/13

1. InstallingBatteries

Inordertoinstallbatteries,openthebatterydooratthebottomleftoftheunit.Slideintwo‘AA’

batterieswiththepositiveterminalofbothbatteriesfacingtowardsthetopoftheunit.Closethe

batterydoortightenoughsothatthebatteriesmakegoodcontactwithbothbatteryterminals.

2. PoweringON/OFF

TopowerONtheunit,pressandholdtheF1keyforapproximatelythreeseconds.TheLCDwilldisplay

thecompanyinformationbrieflyandthenitwillmovetothetransducerselectionscreen.Thesetwo

screensareasshownbelow.ToswitchtheunitOFF,pressandholdtheF1keyforapproximatelythree

seconds.TheLCDwillbrieflydisplaythecompanyinformationalongwitha‘countdown’clock,after

whichtheinstrumentwillswitchOFF.

NOTE:IftheGaugeisconfiguredforright‐handoperation,theF1andF3displaypromptswillbe

reversed.Tochangefromleft‐handtoright‐handoperation,pressMenu,Display,andUser.

 

CompanyinformationscreenTransducerSelectionscreen

3. SelectingtheTransducertypeandperformingAutoZero

AnewtransducercanbeselectedfromtheTransducerselectionscreen(theTransducerselection

appearsafterthedevicepowersON).

Note:itisveryimportantthatthetransducerisnottouchingthetestpieceorhasanyfluidontheface

priortoselectingwhichprobeistobeused.

Whileinthetransducerselectionscreen,gotothetransduceroptionthatmatchesthepartnumberon

theactualtransducerbypressingtheupordownarrowkey.Theunitwillbrieflydisplaya‘Wipeoff

Couplant’(fluid)instructionandwillthenperformanAutoZerofunction.DuringAutoZero,theunitwill

displaythetext‘PerformingAutoZero’.

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ExtechInstruments

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TKGSeriesQuickStartGuide‐ENv3.411/13

4. ChangingUnits

TochangeunitsfromIN(inches)toMM(millimeters)orsec(microseconds):Atthefirstscreen,before

theprobeisselected,pressF1Menu,scrolltoinitialsettings,pressMenu/OK,scrolltounits,press

Menu/OK,choosethedesiredunit,andthenpressMenu/OKandthenF1(Back).

5. CalibratingtheGauge

CalibratingistheprocessofadjustingtheGaugeforaspecificmaterialandtransducerbeforetestingthe

materialtoensurethatallmeasurementsareaccurate.Alwaysperformacalibrationbeforemeasuring

materialtoobtainstandardaccuracy.ThefollowingstepsdescribehowtoperformaVelocityandZero

Calibration.Ateststepblockofknownthicknessisrequiredtoperformanaccuratecalibration.

VelocityandZeroCalibration

Note:itishighlyrecommendedthatatestblockwithknownthicknessesandmultiplestepsofthe

samematerialwithflatandparallelsurfacesbeusedforcalibration.

TocalibratebothZeroandVelocityatthesametime(stronglyrecommended)firstgotothe

Calibrationmodebypressingmenu,calibration,andOK.Messageswillappearonthebottomofthe

displaypromptingtheuserthroughtheprocess“couplethin,presszero…”Whilemeasuringthe

thinneststep,selectZerobypressingF2.AfterselectingZerothetransducercanbetakenoffofthe

testblock.Ifthedisplayedvalueisdifferentthantheknownvalueofthestep,adjustthevalueusing

theupanddownarrowkeysandthenpressF1(CAL).Then,whilemeasuringthethickeststep,select

‘VEl’bypressingF3.AfterselectingZEROthetransducercanbetakenoffofthetestblock.Ifthe

measuredvalueisdifferentthantheknownvalueofthestep,adjustthemeasuredvalueusingtheup

ordownarrowkeyandthenpressOK.Theunitwillbrieflydisplaytheacousticsoundvelocityvalue

andthenreturntoMeasuremode.NotethattheorderofZeroandVelocitycalibrationcouldbe

reversedaslongasZeroisusedonthethinsectionandVelocityonthethicksection.

6. TakingMeasurements

OnceanAuto‐zeroisperformedontheselectedtransducer,theunitautomaticallygoestothemeasure

mode.Totakethicknessreadings,theusercansimplyapplythe(fluid)couplanttothesurfaceandput

thetransduceronthetestpiece,applyingsomepressure,tomeasurethickness.Dependingonthe

parametersettings,thedisplaymayshowotherparameters.FormoredetailedinformationonMeasure

mode,pleaserefertotheUser’sGuidelocatedonthesuppliedCD‐ROM.

7. ChangingtheParametersettings

Tochangeanyparametersetting,pressMenu/OKandthengotoMeasurementbypressingtheupor

downarrowkeyandthenMenu/OK.TheMeasurementscreenliststheparametersinalphabeticalorder

suchasalarm,diff,EtoE,fast…thesevarybasedonwhichGaugeispurchased.Theproceduretochange

anyparameteristhesame…scrolltotheparameter,pressMenu/OK,scrolltoselect,andthenpress

Menu/OK.UsetheF1keyasthe‘back’keytoreturntopreviousscreensandmainmeasurementmodes.

Allrightsreservedincludingtherightofreproductioninwholeorinpartinanyform

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