Extech Instruments SDL900 Manuel utilisateur

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USERGUIDE

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AC/DCMagneticMeter

ModelSDL900

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EXTECHINSTRUMENTS

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Introduction

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ThankyouforselectingtheExtechInstrumentsModelSDL900.Thisdeviceisshippedfullytested

andcalibratedand,withproperuse,willprovideyearsofreliableservice.Pleasevisitour

website(www.extech.com)tocheckforthelatestversionofthisUserGuide,ProductUpdates,

andCustomerSupport.

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Features

Widerangeofapplicationsforindustrial,mechanical,material,electrical,laboratory,and

fielduse

DCandACmagneticfieldmeasurements

NorthandSouthpoleindicator

Automatictemperaturecompensation

ZerobuttonforDCmagneticfunction

Separateprobeforconvenientremotemeasurements

RS232/USBcomputerinterface

Microprocessorcircuitassuresmaximumaccuracyandprovidesadvancedfunctions

Heavydutyandcompacthousingwithhardcarryingcase

Autopowerofffeaturesavesbatterylife

RealtimeSDmemorycardDatalogger

Built‐inclockandcalendar

Manualdatalogger

Easy‐to‐readLCDdisplaywithgreenbacklight

DataholdandMIN‐MAXRecordingfeatures

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MeterDescription

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1. ProbeConnection

2. LCDDisplay

3. HOLDButton

4. POWERButton

5. SETButton

6. RANGE/UpArrowButton

7. FUNCTION/DownArrowButton

8. ENTER/LOGButton

9. MAX/MINButton

10. RS‐232OutputTerminal(Side)

11. ResetButton(Side)

12. DC9VPowerAdapterInputSocket(Side)

13. TiltstandandBatterycompartment(Back)

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Probe

1. ProbeSensingHead

2. ProbeHandle

3. ProbePlug

4. ProbeHeadCover

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Operation

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AC/DCMagneticFieldMeasurement

SwitchthemeterONbypressingandholdingthePOWERbuttonforatleasttwoseconds.Press

andholdtheFUNCTIONbuttontoselecteitherDCorACmagneticfieldmeasurement.Pressand

holdtheRANGEbuttonuntilthedesiredrange(1or2)isselected.Selectthedesiredunitof

measure(mTorG).

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ForDCmagneticfieldmeasurements,thedisplaywillshoweithertheNorSindicator.Forthe

NorthPole,theNindicatorwillbeshown.Similarly,fortheSouthPole,theSindicatorwillbe

shown.ForACmagneticfieldmeasurements,thedisplaywillshowtheACindicator.Thedisplay

willnotshowtheNorSindicator.

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Contactandpressthetestingmaterialtotheprobehead(seeFig1).Thedisplaywillshowthe

magneticfieldvaluealongwiththemeasurementunit(mTorG).

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Figure1

Note:WhenthemeterispoweredON,thedisplaymayshowanon‐zerovalue;thisisbecauseof

environmentalinterference.Beforetakingameasurement,settheprobeattheoptimum

position.ToZerothedisplay,pressandholdthe▲and▼buttonsuntilthedisplayshowsthe

“0”valueandthedisplayflashestheZEROindicator.Themeterisnowzeroed.

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DataHold

Duringthemeasurements,presstheHOLDbuttontofreezeadisplayedreading.Themeasured

valuewillbeheldandtheLCDwilldisplaytheHOLDsymbol.PresstheHOLDbuttonagainto

releasethedataholdfunction.

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DataRecord(MaximumandMinimumReading)

PresstheRECbuttontostartthedatarecordfunction.TheLCDwilldisplayaRECsymbol.Press

theRECbuttonagain,andtheRECMAXsymbolalongwiththemaximumreadingvaluewillbe

displayed.PresstheRECbuttonagaintodisplaytheminimumvalue.TheLCDwillalsoshowthe

RECMINsymbols.Toexitthismode,pressandholdtheRECbuttonfortwoseconds.Themeter

willreturntothenormaloperatingmode.

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Note:WhenmakingDCmagneticfieldmeasurementsintheRECORDmode,themetercannot

bechangedfromNorthpoletoSouthpole,orviceversa.

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SetMode

PressandholdtheSETbuttonfortwosecondstoentertheSetMode.Momentarilypressingthe

SETbuttonwillcyclethroughoutthesevenfunctions.Theyare(inorder):

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DATE………Setclock(Year/Month/Date,Hour/Minute/Second)

SP‐T……….Setsamplingtime(from0~3600seconds)

POFF………AutopowerOFFmanagement

BEEP……...SetbeeperON/OFF

DEC………..SetSDcardDecimalcharacter(commaformetricordecimalforimperial)

SD‐F……….FormattheSDmemorycard

UNIT……….Selectthemagneticfieldunits(mT:milliTeslaorG:Gauss)

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Note:PressandholdtheSETbuttonfortwosecondswhenintheSetModetoexit.

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SettheClockTimeandDate

WhentheLCDdisplaysDATE,presstheENTERbutton.Usethe▲and▼buttonstoadjustthe

value(startingwiththecurrentYEAR).Afterthedesiredvalueisset,presstheENTERbuttonto

steptothenextitem.Afterallsixparametersareset,presstheENTERbuttontosavethe

settings.

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Note:TheSDL900internalbatteryallowstheinternalclocktorunprecisely,evenafteritis

switchedOFF(aslongasthebatteryisfresh).

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SetSamplingTime

WhentheLCDdisplaysSP‐T,presstheENTERbutton.Usethe▲and▼buttonstoadjustthe

samplingtime(rateofdatalogging)to0,1,2,5,10,30,60,120,300,600,1800,or3600seconds.

Afterthedesiredsamplingtimeisselected,presstheENTERbuttontosavethesetting.

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6SDL900‐en‐GB_V1.45/15

AutoPowerOFFManagement

WhentheLCDdisplaysPOFF,presstheENTERbutton.Usethe▲and▼buttonstoselectYES

orNO.SelectingYESenablestheAutoPowerOFFmanagement.SelectingNOdisablestheAuto

PowerOFFmanagement.PresstheENTERbuttontosavethesetting.

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SetBeeperON/OFF

WhentheLCDdisplaysBEEP,presstheENTERbutton.Usethe▲and▼buttonstoselecteither

YESorNO.SelectingYESenablestheaudiblebeeper.SelectingNOdisablestheaudiblebeeper.

PresstheENTERbuttontosavethesetting.

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DecimalPoint/CommaSelection

WhentheLCDdisplaysDEC,presstheENTERbutton.Thenumericalstructureforthedecimal

pointis“.”,asusedintheUnitedStates.Inothercountries,thedecimalfunctionisrepresented

bythe“,”commasymbol.Usethe▲and▼buttonstoselectUSAorEURO.SelectingUSA

enablesthedecimalpointformat.SelectingEUROenablesthecommaformat.PresstheENTER

buttontosavethesetting.

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SDMemoryCardFormat

WhentheLCDdisplaysSD‐F,presstheENTERbutton.Usethe▲and▼buttonstoselectYESor

NO.SelectingYESallowstheSDcardtobeformatted.SelectingNOskipstheformattingutility.If

YESisselected,presstheENTERbuttontoconfirmthattheSDmemorycardwillbeformatted.

ConfirmingwillclearalloftheexistingSDcarddataandtheformattingutilitywillrun.

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SelectingUnitsofMagneticField

WhentheLCDdisplaysUNIT,presstheENTERbutton.Usethe▲and▼buttonstoselectmTor

G.IfmTisselected,themagneticfieldunitswillbesettomilli‐Tesla.IfGisselected,the

magneticfieldunitswillbesettoGauss.PresstheENTERbuttontosavethesetting.

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DataloggerMode

PreparationfortheDataloggerFunction

InserttheSDcardintotheSDcardsocket.IftheSDcardhasneverbeenusedwiththeSDL900,

pleaseformatit(seethesectiontitled“SDMemoryCardFormat”intheSetModeabove).

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Note:ItisstronglyrecommendedthatmemorycardsbeformattedbytheSDL900.IftheSDcard

hasproblemsuseacomputertoreformattheSDcardandtryagain.

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Ifthisisthefirsttimethemeterisbeingused,settheDateandTime(seethesection“Setthe

ClockTimeandDate”intheSetModeabove).

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AutomaticDatalogging

1. Selectthesamplingtime(rate)asdescribedintheSetModesectionabovetoavalue

otherthanzero.

2. PressandholdtheLOGbuttonfor2seconds.ThemeterwillflashtheDATALOGGERicon

attheselectedsamplingrate,indicatingthatreadingsarenowbeingautomatically

recordedtotheSDcard.

3. Ifacardisnotinsertedorifthecardisdefective,themeterwilldisplay‘EMPTY’andexit

theDATALOGGERmode.Inthiscase,switchthemeterOFFandtryagainwithavalidSD

card.

4. PausethedataloggerbypressingtheLOGbuttonmomentarily.TheDATALOGGERicon

willstopflashingandthesampleratewilldisplayforashorttime.Toresumelogging

simplypresstheLOGbuttonagain.

5. ToterminatethedataloggingsessionpressandholdtheLOGbuttonforatleast2

seconds.

6. WhenanSDcardisusedforthefirsttimeafolderiscreatedonthecardandnamed

MGA01.Upto99spreadsheetdocuments(eachwith30,000readings)canbestoredin

thisfolder.

7. Whendataloggingbegins,anewspreadsheetdocumentnamedMGA01001.xlsiscreated

ontheSDcardintheMGA01folder.Thedatarecordedwillbeplacedinthe

MGA01001.xlsdocumentuntil30,000readingsarereached.

8. Ifthemeasurementsessionexceeds30,000readings,anewdocumentwillbecreated

(MGA01002.xls)whereanother30,000readingscanbestored.Thismethodcontinues

forupto99documents,afterwhichanotherfolderiscreated(MGA02)whereanother99

spreadsheetdocumentscanbestored.Thisprocesscontinuesinthissamefashionwith

foldersMGA03throughMGA10(lastallowablefolder).



EXTECHINSTRUMENTS

8SDL900‐en‐GB_V1.45/15

ManualDatalogging

InthemanualmodetheuserpressestheLOGbuttontomanuallylogareadingtotheSDcard.

ForManualDatalogging,thesamplingratemustbefirstsetto‘0’secondsasdescribedintheSet

Modesectionabove.

PressandholdtheLOGbuttonforatleast2secondsandtheDATALOGGERiconwillappearon

theLCD;thelowerportionofthedisplaywillshowp‐n(n=memorylocationnumber1‐99).

MomentarilypresstheLOGbuttontostoreareading.TheDATALOGGERiconwillflasheachtime

adatapointisstored.

Usethe▲and▼buttonstoselectoneofthe99datamemorypositionsinwhichtorecord.

Toexitthemanualdataloggingmode,pressandholdtheLOGbuttonforatleast2seconds.The

DATALOGGERiconwillswitchoff.



Spreadsheetdataexample



RS‐232/USBPCInterface

ForstreamingofdatatoaPCviatheRS232Outputjack,theoptional407001‐USBkit(RS232toUSBcable

anddriverCD)alongwiththe407001software(availablefreeatwww.extech.com/instruments)are

required.

ACPowerAdaptor

Thismeterisnormallypoweredbysix(6)1.5V‘AA’batteries.Anoptional9Vpoweradaptorisavailable.

Whentheadaptorisused,themeterispermanentlypoweredandthepowerbuttonwillbedisabled.

EXTECHINSTRUMENTS

9SDL900‐en‐GB_V1.45/15

BatteryReplacement



Whenthelowbatteryicon  appearsontheLCD,thebatteriesmustbereplaced.Several

hoursofaccuratereadingsarestillpossibleinthiscondition;howeverbatteriesshouldbe

replacedassoonaspossible:

Removethetwo(2)Phillipsscrewsfromtherearofthemeter(directlyabovethetopofthe

tiltstand).

Removeandsafelyplacethebatterycompartmentandscrewswheretheywillnotbe

damagedorlost.

Replacethesix(6)1.5V‘AA’batteriesobservingpolarity.

Replacethebatterycompartmentcoverwiththetwo(2)Phillipsscrews.

Note:ThemetercanalsobepoweredbyaDC9VPowerAdapter.Themeterwillbepermanently

poweredONwhentheDCadapterisusedasthepowersupply(thepowerbuttonfunctionis

disabled).



All EU users are legally bound by the battery ordinance to return all used batteries to

collection points in the community or wherever batteries / accumulators are sold!

Disposal in the household garbage is prohibited!



EXTECHINSTRUMENTS

10SDL900‐en‐GB_V1.45/15

Specifications

CircuitCustomone‐chipofmicroprocessorLSIcircuit



Display(LCD)Size52x30mm(2.04x1.18in.)

MeasurementUnitmTMilliTesla

GGauss

MeasurementRange,DCmTRange1300.00mTx0.01mT

Range23,000.0mTx0.1mT

GRange13,000.0Gx0.1G

Range230,000Gx1G

MeasurementRange,ACmTRange1150.00mTx0.01mT

Range21,500.0mTx0.1mT

GRange11,500.0Gx0.1G

Range215,000Gx1G

Accuracy

(at23±5°C)

DC±(5%rdg.+10dgt.)

AC±(5%rdg.+20dgt.)

FrequencyResponseACMeasurement:50Hz/60Hz

SensorHallSensor

DataloggerSamplingTime

andSettingRange

Auto1secondto3600seconds(withthesamplingrate

setto‘1’secondsomedatapointscouldbelost)

ManualPushdataloggerbuttontosavedata(setto‘0’

seconds)

Dataerrornumber≤0.1%no.oftotalsaveddatatypically

FieldDirectionUniaxial

DisplaySamplingTimeApprox.1second

OperatingTemperature0to50°C(32to122°F)

OperatingHumidityLessthan85%R.H.

DataOutputRS232/USBPCserialinterface

PowerSupply6xAlkalineorHeavyduty1.5VAAbatteries

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