Extech Instruments SD910 Manuale utente

USER MANUAL

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3‐ChannelDCVoltageDatalogger

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ModelSD910

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Distributore Autorizzato : Geass S.r.l. - Torino - Tel.: +39 011.22.91.578 - [email protected] - web site :www.geass.com

SD910‐en‐GB_V1.29/16

TableofContents

1.INTRODUCTION3

2.DESCRIPTIONS4

3.OPERATION5

Power5

ConnectingVoltageCables5

Datalogging5

Time/Date/SampleRateCheck6

SDCardDataStructure6

TransferringDatatoaPC6

AdvancedSettings7

SystemRESET8

RS232Interface8

Backlight8

4.MAINTENANCE8

BatteryReplacement8

CleaningandStorage8

5.SPECIFICATIONS9

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1. Introduction

Thank you for selecting the Extech SD910 3-Channel Voltage Datalogger.

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TheSD910isathreechannel0to300mVor0to3000mVDCvoltagemonitoranddatalogger.

Dataisstoredataselectablerateandstoredforeasyexporttoaspreadsheet.

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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,ProductRegistration,andCustomerSupport.

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Features

TripleLCDsimultaneouslydisplays(3)300mVor(3)3000mVchannels

Dataloggerdate/timestampsandstoresreadingsonanSDcardinExcel®formatforeasy

transfertoaPC

Selectabledatasamplingrate:1,2,5,10,30,60,120,300,600seconds,auto

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2. Descriptions

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1. Channel1Display

2. Channel2Display

3. Channel3Display

4. LOGand(ENTER)button

5. SETbutton

6. ▲and (TIME)button

7. ▼and (Power)button

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ACadaptorsocket

Resetbutton

10.

RS‐232output

11.

SDmemorycardsocket

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12.

Channel1input

13.

Channel2input

14.

Channel3input

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Note:BatteryCompartmentandTiltStandarelocatedonthebackofthemeter.

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3. Operation

Power

1. Installsix(6)1.5VAAAbatteries.Thebatteriesprovidebackuppowerfortheclock.

2. ConnecttheAC/DCpoweradaptortotheDC9Vinputonthemeter.Thepoweradaptoris

requiredfordatalogging.

3. Whenthe iconappearsinthedisplaythebatteriesareweakandshouldbereplaced.

However,in‐spec.measurementsmaystillbemadeforseveralhours,afterthelowbattery

indicatorappears.

ConnectingVoltageCables

1. Connectthevoltagewirestotheplugasshownandthen

inserttheplugintothesocketsonthebottomofthe

datalogger(observepolarity)

2. Uptothreecablesmaybeinstalled.

3. Thevoltagefortheinsertedcableswillbedisplayed1,2,

and3fromtoptobottom.

4. 0.00willbedisplayedforopenorunusedinputs.

Datalogging

1. OpentheleftsidedoorandinsertaformattedSDcard

Notes

TheSDcardshouldbe1GBto4GBincapacity.

Donotusememorycardsformattedbyothermetersorcameras.UsetheSDcard

formattingprocedureundertheadvancedfeaturessectionofthismanualtocorrectly

formatthecard.

Theinternalclockmustbesettothecorrecttime.Seetheadvancedfeaturessectionof

thismanualtosettheclock.

Thedefaultdatastructureusesadecimalpoint“.”asthenumericdecimalindicator.See

theadvancedfeaturessectionofthismanualtochangethistoacomma“,”.

IftheSDmemorycardisnotinstalled,“EMPTY”willappearinthedisplay.

Ifthevoltagecableisnotinstalled,randomnumbersmayappearinthedatafile.

Ifthevoltagecableisnotinstalled,afterdatadownloadtheeunitssymbolmaynot

appearinthedisplay.

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Displayederrormessages:

Thememorycardisfullorthereisaproblemwiththecard

Thebatteryislowanddataloggingisdisabled

TheSDcardisnotinserted

2. PresstheLOGbuttonfor>2secondstobeginlogging.“DATALOGGER”willappearinthe

displayandthemeterwillbeepeachtimethedataisrecorded(ifthebeeperisenabled).

3. Tostopdatalogging,presstheLOGbuttonfor>2seconds.“DATALOGGER”willchangeto

“DATA”andthemeterwillcountdownthroughtherecordeddata.

NOTE:Toavoidcorruptingdata,donotremovethememorycardwithoutproperlyendingthe

recordfunction.

Time/Date/SampleRateCheck

PressandHoldthe buttonfor>2secondsandthedisplaywillcyclethroughthedate,time

andsamplerateinformation.

SDCardDataStructure

1. WhentheSDcardiffirstinsertedintothedataloggerthefolderMVA01iscreated.

2. ThefirstdataloggingsessionwillthencreateafileMVA01001.XLS.Alldatawillbesaved

tothisfileuntilthenumberofcolumnsreaches30,000.

3. After30,000columnsanewfile,MVA01002.XLSiscreated.Thisisrepeatedevery30,000

columnsuntilMVA01099.XLS.Atthispointanewfolder,MVA02iscreatedandthe

processisrepeated.MVA10isthefinalfolder.

TransferringDatatoaPC

1. RemovethememorycardfromthedataloggerandplugitintotheSDcardslotonthePC.

2. LaunchExcelandopenthedatafileonthememorycard.Thefilewillappearsimilarto

thefigurebelow.

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CArd

LobAt

CH-

CArd

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AdvancedSettings

TheSETfunctionisusedto:

FormattheSDmemorycard

Setthedateandtime

Setthesamplingtime

SetthebeepersoundON/OFF

SettheSDcardDecimalcharacter

SettheRS232dataoutputON/OFF

Setthevoltagerangeto300mVor3000mV

1. PressandHoldtheSETbuttonfor>2secondstoenterthesettingmode.

Thefirstfunction(SdF)willappearinthedisplay.PresstheSETbuttontostepthroughthe

sevenfunctions.Usethe▲and▼buttonstoadjusttheselectedfunction.Usethe“LOG”

buttontostepthroughfieldswithinafunction.IntheSETmode,ifnobuttonispressed

within5seconds,theloggerwillrevertbacktothestandardmode.

2. SdF–FormattheSDcard.

Pressthe▲buttontoselectyESorno.ForyES,pressthebutton.WhenyESandEnt

appear,pressthe keyagaintoformatthecardanderaseallexistingdata.Thescreen

willdisplayaflashingyEsandESCwhilethememoryisbeingerasedandformatted.

3. dAtE–Setthedateandtime.

Pressthe▲or▼buttonstoadjusttheselected(blinking)field.Pressthebuttonto

storethevalueandtostepthroughthevariousfields(Year,Month,Day,Hour,Minute,

Second)

4. SP‐t–Setthesamplerate.

Pressthe▲buttontoselectthedesiredsamplerateandpressEntertostoretheselection.

Theselectionsare:5,10,30,60,120,300,600secondsandAUTO.InAUTO,thedatawillbe

storedeverytimethereisachangeof>10digits.

5. bEEP‐SetthebeeperONorOFF.

Pressthe▲buttontoselectONorOFFandpresstostoretheselection.

6. dEC‐SettheSDcardDecimalcharacter.

Pressthe▲buttontoselectUSA(decimal)orEuro(comma)andpresstostorethe

selection.

7. rS232‐SettheRS232dataoutputON/OFF.

Pressthe▲buttontoselectONoroffandpress tostoretheselection.

8. Rng–Setthevoltagerange

Pressthe▲buttontoselecteitherto3000mVorthe300.0mVrangeandpress tostore

theselection.

9. ESC–Exitthesettingmode.

PresstheSETbuttontoreturntonormaloperation.

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SystemRESET

IfaconditionappearswheretheCPUdoesnotrespondtokeystrokesorthemeterseemsfrozen,

presstheRESETbuttononthesideofthedatalogger(useapapercliporsimilarpointedobject)to

returnthemetertoaworkingstate.

RS232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)are

required.

Backlight

Pressthe buttontoturnonthebacklight.Thebacklightwillautoturnoffafter5seconds.

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4. Maintenance

BatteryReplacement

1. Toreplaceorinstallbatteries,removethePhilipsheadscrewthatsecurestherear

batterycoverandliftoffthecover.

2. ReplacethesixAAAbatteries(usealkalineheavydutytype),observingpolarity.

3. Replaceandsecurethecover.



BatterySafetyNotes:Pleasedisposeofbatteriesresponsibly;neverdisposeofbatteriesina

fire,batteriesmayexplodeorleak.Ifthemeterisnottobeusedfor60daysormore,remove

thebatteryandstoreseparately.Donotmixbatterytypesorfreshnesslevels;pleaseuse

batteriesofthesametypeandofthesamefreshnesslevel.



Neverdisposeofusedbatteriesorrechargeablebatteriesinhouseholdwaste.

Asconsumers,usersarelegallyrequiredtotakeusedbatteriestoappropriate

collectionsites,theretailstorewherethebatterieswerepurchased,orwherever

batteriesaresold.

Disposal:Donotdisposeofthisinstrumentinhouseholdwaste.Theuserisobligatedtotake

end‐of‐lifedevicestoadesignatedcollectionpointforthedisposalofelectricalandelectronic

equipment.



CleaningandStorage

Periodicallywipethecasewithadampclothandmilddetergent;donotuseabrasivesor

solvents.

Pleaseremovethebatteriesifthemeterisstoredforalongperiodoftime.

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5. Specifications(at23±5°C)



Display 60mmx50mm(2.4x2.0”)LCDwithbacklight

MemoryCardSDmemorycard,1GBto16GB.

InputChannels3

DCVoltageRange Resolution Accuracy

0to300.0mV0.1mV ±(0.5%+0.2mV)

0to3000mV1mV ±(0.5%+2mV)



Inputimpedance5.6MOhms

InputsNegative(‐)terminalsconnectedtoanalogground

DataloggerSamplingTime1/2/5/10/30/60/120/300/600seconds/auto

(withthesamplingratesetto‘1’secondsomedatapointscouldbelost)

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

DisplayupdaterateApprox.1second

DataOutputRS232

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

OperatingHumidity<85%R.H.

PowerSupply9VACadaptorrequiredfordatalogging

6AAA(UM4)Alkalineorheavyduty1.5Vbatteriesare

usedforclockbackupandmeasurementdisplayonly.

BatterylifeDependentonsamplerate,fornewalkalinebatteriesand

60secondsamplingtime,>onemonthistypical.Fast

samplerateswillsignificantlyreducebatterylife.

ThebatterylifewilldecreaseifthebeeperissetON

Weight199g(0.44lbs.)



Dimension132x80x32mm(5.2x3.1x1.3“)



Note:AbovespecificationtestsperformedunderenvironmentalRFFieldStrength<3V/M&

frequency<30MHzonly.

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

ISO‐9001Certified

www.extech.com

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