s230 conductivity meter - hogentoglers230 conductivity meter. english français español. table of...

Operating Instructions

Mode d‘emploi

Instrucciones de manejo

SevenCompact™

S230 Conductivity meter

Engl

ish

Fran

çais

Espa

ñol

Table of contents

1 Introduction 5

2 Safetymeasures 6

3 Installation 8

3.1 Installingtheelectrodearm 83.2 Connectingasensor 12

4 Operatingthemeter 13

4.1 Backsidelayout 134.1.1 PinassignmentsRS232connection 134.2 Thedisplay 144.3 Keycontrols 154.4 Usingthesoftkeys 164.5 Selectingameasurementmode 164.6 Navigatingbetweenmenus 164.7 Navigatingwithinamenu 174.8 Usingthealphanumerickeypad 174.8.1 Alphanumericinput 174.8.2 EnteringIDs/PIN 184.8.3 Editingvaluesinatable 184.9 Calibration 184.10 Samplemeasurements 194.11 Datatransfer 194.12 Temperaturecompensation 20

5 Setup 21

5.1 Menustructureofsetup 215.2 SampleID 215.3 UserID 215.4 Stirrer 225.5 DataTransferSettings 225.6 Systemsettings 245.7 Service 255.8 Instrumentself-test 26

6 Menusandsettings 27

6.1 Menustructureofconductivity 276.2 SensorID/SN 276.3 Conductivitycalibrationsettings 286.4 Conductivitymeasurementsettings 296.5 Endpointformats 316.6 TimedIntervalReadings 326.7 Temperaturesettings 326.8 Measurementlimits 32

Tableofcontents 3

7 Datamanagement 33

7.1 Menustructureofdatamenu 337.2 Measurementdata 337.3 Calibrationdata 347.4 ISMdata 35

8 Maintenance 37

8.1 Metermaintenance 378.2 Disposal 378.3 Errormessages 378.4 Errorlimits 40

9 Sensors,solutionsandaccessories 41

10 Specifications 42

11 Appendix 44

11.1 Temperaturecorrectionfactors 4411.2 Conductivitystandardstable 4511.3 Examplesoftemperaturecoefficients(alpha-values) 4511.4 Practicalsalinityscale(UNESCO1978) 4611.5 ConductivitytoTDSconversionfactors 4611.6 USP/EPtables 4611.7 Conductivityashmethods 4711.7.1 1.Refinedsugar(28g/100gsolution)ICUMSAGS2/3-17 4711.7.2 Rawsugarormelasses(5g/100mLsolution)ICUMSAGS1/3/4/7/ 8-13 47

Tableofcontents4

1 IntroductionThankyouforpurchasingthisMETTLERTOLEDOinstrument.TheSevenCompactSeriesisnotonlyanewgenerationofintuitiveandeasy-to-operatebenchmetersforreliablemeasurements,theyalsoprovideextrasecurityagainstmistakesandsupportyourworkflowinthelaboratory.

Mistakescanbereducedtoaminimumbecauseofthefollowingcharacteristics:

NewISM®(IntelligentSensorManagement)technology:themeterautomaticallyrecognizesthesensorandtransfersthelatestsetofcalibrationdatafromthesensorchiptothemeter.Thelastfivecalibrationsaswellastheinitialcalibrationcertificatearealsostoredonthesensorchip.Thesecanbereviewed,transferredandprinted.ISM®providesadditionalsecurityandhelpseliminatemistakes.

Multi-languagegraphicaluserinterfaceonalarge4.3inchdisplaywithintuitivemenuguidance,makingtheoperatinginstructionsprimarilyasourceofreference.

GLPandRoutinemodefortheneedsofanyoperator:intheroutinemode,thedeletionofdataispreventedandchangingthosesettingsthatwouldpotentiallyjeopardizethecollectionofreliableresults,suchasmeasurementsettings,areblocked.Thisprovidesextrasecurityforroutinedailywork.SkilledworkersareadvisedtoemploytheGLPmodetoenjoytheinstruments’powerfulfullfunctionalrange.

Thisinstrumentsupportstheworkflowofamodernlaboratoryinallstagesofthedatacollectionandarchivingprocess:

Theelectrodearmcanbeoperatedwithonehandandmovesperfectlystraightupanddowntobringtheelectrodeintheperfectpositionforthebestmeasurementperformance.Thisallowsfastermeasurementsandposeslessrisktotipoverthesamplevesseland/ordamagetheheadofthesensor!

Onlyonekeypressrequired:READstartsameasurementandCALacalibration.It’ssoeasy! EasyswitchingbetweenthenormalviewandtheuFocus™.Thenormalviewhasallthe

measurementparametersandIDsonthedisplaytoprovideyouaninstantcompleteoverview.IntheuFocus™onlythemostimportantinformationisshowninlargedigits,suchasmea-surementvalueandtemperature.Thisenablesyoutofocuscompletelyonthemeasurement,withoutgettingdistractedbyinformationthatisnotrelevanttoyou.

EasytogglingwiththeMODEsoftkeybetweenthevariousmeasurementparameterseitherbeforeorduringameasurement.

Versatiledataarchivingoptions:printdata,exportdatatoaUSB-stick,orsenddatatoaPCwithLabXdirectsoftware!

Versatiledataentryprocedures:Entersample/userandsensorIDseitherdirectlyontheinstrument,oruseabarcodereaderorUSB-Keyboardtoincreaseefficiency.

AtMETTLERTOLEDOwearecommittedtoprovidingyouinstrumentsofhighestqualityandwedoallwecantosupportyouinmaximizingthelifetimeofyourinstrument:

IP54rating–wateranddustprotection:wehavedesignedourinstrumentinsuchway,thatitwithstandsdropsofaqueoussolutionsonthehousingandconnections.Thisnotonlypro-videsextraprotection,butalsoallowseasycleaningoftheinstrumentwithadampcloth.

Rubberplugsandprotectivecoverprovideextrasecurityagainstdustandspillsofaqueoussolutions.Justkeeptheplugattachedtotheconnectionsandcovertheinstrumentwiththetransparentprotectivecoverwhennotinuse.

HavefunandmanyreliablemeasurementswithourSevenCompactseriesofpH,Ionandconduc-tivitymeters!

5Introduction

2 Safetymeasures

Measuresforyourprotection

Riskofexplosion

Neverworkinanenvironmentsubjecttoexplosionhazards!Thehousingoftheinstrumentisnotgastight(explosionhazardduetosparkforma-tion,corrosioncausedbytheingressofgases).

Riskofcorrosion

Whenusingchemicalsandsolvents,complywiththeinstructionsoftheproducerandthegenerallabsafetyrules!

Measuresforyouroperationalsafety

Caution

Neverunscrewthetwohalvesofthehousing! HavethemeterservicedonlybyMETTLERTOLEDOService! Anyspillageshouldbewipedoffimmediately!Somesolventsmight

causecorrosionofthehousing. Avoidthefollowingenvironmentalinfluences:

• Powerfulvibrations• Directsunlight• Atmospherichumiditygreaterthan80%• Corrosivegasatmosphere• Temperaturesbelow5°Candabove40°C• Powerfulelectricormagneticfields

6 Safetymeasures

FCCRulesThisdevicecomplieswithPart15oftheFCCRulesandRadioInterferenceRequirementsoftheCanadianDepartmentofCommunications.Operationissubjecttothefollowingconditions:(1)thisdevicemaynotcauseharmfulinterference,and(2)thisdevicemustacceptanyinterferencereceived,includinginterferencethatmaycauseundesiredoperation.

ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassAdigitaldevice,pursuanttoPart15oftheFCCrules.Theselimitsaredesignedtoprovidereasonableprotectionagainstharmfulinterferencewhentheequipmentisoperatedinacommercialenvironment.Thisequipmentgenerates,uses,andcanradiateradiofrequencyenergyand,ifnotinstalledandusedinaccordancewiththeinstructionmanual,maycauseharmfulinterferencetoradiocommunica-tions.Operationofthisequipmentinaresidentialareaislikelytocauseharmfulinterferenceinwhichcasetheuserwillberequiredtocorrecttheinterferenceathisownexpense.

7Safetymeasures

3 InstallationCarefullyunpackthemeter.Keepthecalibrationcertificateinasafeplace.Inserttherightadapterclipintothepoweradapterslot:

PUSH

3.1 InstallingtheelectrodearmTheelectrodearmcanbeusedasastandaloneoritcanbeattachedtotheinstrumentontheleftorrightside,accordingtoyourpreferences.Theheightoftheelectrodearmcanbevariedbyusingtheextensionshaftpart.Usethewrenchtoattachtheextensionpart.

8 Installation

Assemblyoftheelectrodearm Usethewrenchtoattachthebasetotheelectrodearmbytighteningthescrews.Theelectrode

armcannowbeusedinthestandalonemode.

9Installation

Toattachtheelectrodearmtotheinstrument,removetheplasticcoversinafirststep.

10 Installation

Theninsertthefootofthemetertothearmbaseandshiftthemeterinthedirectionofthear-rowtomakethefootfit.

Usethelockscrewtoattachthemetertothebaseofthearm.

11Installation

3.2 ConnectingasensorConnecttheconductivityelectrodeandmakesurethattheplugsareproperlyinserted.

ISM®sensorWhenconnectinganISM®sensortothemeter,oneofthefollowingconditionshavetobemetforthecalibrationdatatobetransferredautomaticallyfromthechipofthesensorintothemeterandisusedforfurthermeasurements.AfterattachingtheISM®sensor...

Themetermustbeswitchedon. (Ifthemeterisalreadyswitchedon)theREADkeyispressed. (Ifthemeterisalreadyswitchedon)theCALkeyispressed.

WestronglyrecommendyoutoswitchoffthemeterwhendisconnectinganISMsensor.Indoingso,youmakesurethatthesensorisnotremovedwhiletheinstrumentisreadingdatafromorwrit-ingdatatotheISM-chipofthesensor.

TheISMicon appearsonthedisplayandthesensorIDofthesensorchipisregisteredandappearsonthedisplay.

Thecalibrationhistory,theinitialcertificateandthemaximumtemperaturecanbereviewedandprintedinthedatamemory.

12 Installation

4 Operatingthemeter

4.1 Backsidelayout

b c d

a g f e

a Mini-DINsocketforconductivitysignalinput

b Digitalsocketfordigitalelectrodes

c RS232interface

d DCpowersupplysocket

e USBAinterface

f USBBinterface

g MiniDINsocketforMETTLERTOLEDOstirrer

4.1.1 PinassignmentsRS232connectionBelowthePINassigmentsfortheRS-232interfaceareshown.TothisinterfacecanbeconnectedMETTLERTOLEDOprinterssuchasRS-P25.

13Operatingthemeter

4.2 ThedisplayTherearetwomodesforthedisplay:thefull-informationscreenwithalltheinformationonthedis-playandthemeasurementclose-upscreen(superview)inwhichthemeasurementinformationisshownwithlargefont.SwitchingbetweentheseviewsispossiblebypressingREADfor2s,bothduringameasurementorafter/beforeameasurement.

5 6 2 3 4 1 7

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13 14 15 16

5 6 2 3 4 1 7

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13 14 8 15 16

1 Measurementvalue

2 USBdeviceconnected

3 PCconnected(forLabXdirect)

14 Operatingthemeter

4 Stirrericon(whenstirringistakingplace)

5 Dataloggingicon(timedintervalreading)

6 Routinemodeicon(useraccessrightsarerestricted)

7 Dateandtime

8 Measurementtemperature

9 Endpointformat

10 Temperaturecompensation

ATC:Temperaturesensorconnected MTC:notemperaturesensorconnectedordetected

11 Numberofdatasetsinmemory

12 UserID

13 Softkey

14 Softkey

15 Softkey

16 Softkey

17 SampleID

18 SensorID

19 Referencetemperature

20 Cellconstant

21 ISM®sensorconnected

22 Warningmessages

23 Conductivitystandards

4.3 KeycontrolsKey Pressandrelease Pressandholdfor2seconds

Switchmeteronoroff Switchmeteronoroff

Switchbetweenmeasurementclose-upscreenandfull-infor-mationscreen

Startcalibration Reviewthelastcalibrationdata

Softkeys Thefunctionofthesoftkeysvariesfromscreentoscreen(see“Usingthesoftkeys”)

ON/OFF

READ Startorendmeasurement

(measurementscreen)

Confirminputorstarteditingatable

Exitmenuandgobacktomeasurementscreen

CAL

15Operatingthemeter

4.4 UsingthesoftkeysThemeterhasfoursoftkeys.Thefunctionsassignedtothemchangeduringoperationdependingontheapplication.Theassignmentisshownonthebottomlineofthescreen.

Inthemeasurementscreen,thesoftkeysareassignedasfollows:

Data Menu ModeAccessdatamenu Accessmetersettings Changemeasurementmode

Theothersoftkeyfunctionsare:Moveonepositiontotheright Edit Edittableorvalue

Moveonepositiontotheleft End Endcalibration

Scrollupinthemenu Yes Confirm

Scrolldowninthemenu No Reject

Increasevalue Review Reviewselecteddata

Decreasevalue Save Savedata,settingorvalue

Scrolltonextdatasetinmem-ory

Select Selectthehighlightedfunctionorsetting

Deletelettersornumbersonalphanumerickeypad

Start Beginthereferencemeasure-ment

Delete Deleteselecteddata Trans Transferselecteddata

4.5 SelectingameasurementmodePresstheMODEsoftkeytoswitchbetweenthedifferentmeasurementmodes.

Thesequenceofthealternatingmeasurementmodesis:

1. Conductivity

2. TDS

3. Salinity

4. Resistivity

5. Conducitivityash

Fortheconductivitymode,theusercanchoosebetweentheunits“μS/cm&mS/cm”and“μS/m&mS/m”.Thissettingcanbemadeintheconductivitymenu(see“Menusandsettings:Conductivi-tymeasurementsettings”).

4.6 NavigatingbetweenmenusThemeterdisplayconsistsofameasurementframe,softkeys,areasforstatusiconsandunderly-ingmenuareas.

Toaccessthemenuareasandtonavigatebetweenthem,usevarioussoftkeys(see“Usingthesoftkeys”).

1 PressMenu.

TheSetupmenuappearsandtheCond.tabishighlighted.

2 Press tohighlighttheSetuptab,or

16 Operatingthemeter

3 Press tohighlightSensorID/SN.

4 PressEXITtoreturntothemeasurementscreen.

4.7 NavigatingwithinamenuThisexampleisbasedontheSetupmenu,buttheprocedureappliestotheothermenusaswell.

PressMenu.

TheSetupmenuappearsandtheCond.tabishighlighted.

Press asoftenasneededtonavigatetoamenuitem. PressSelecttomovedeeperinthemenuforthechosenoperation. Continuenavigatingwith , orSelectuntilthefinaldestinationisreachedwithin

themenu. PressMODE/EXITtogobacktothepreviousmenu.

—or— PressREADtoreturntothemeasurementscreendirectly.

4.8 Usingthealphanumerickeypad

4.8.1 AlphanumericinputThemeterhasascreenkeypadforenteringIDs,SNsandPINs.Bothnumbersandlettersareal-lowedfortheseentries.

WhenenteringaPIN,eachcharacterenteredwillbedisplayedas(*).

1 Press tomovelefttohighlightnumberorletter,use tomoveright,and tomovedownwards.

2 PressREADtoconfirmtheentry.

Thelinewherethepositionofalphanumericcharacterisbeingenteredblinks.

3 Toendandconfirmentry,usesoftkeystohighlightscreenkeyOK,andpressREADtosavetheID.—or—

4 Todeleteinformation,usesoftkeystohighlight andpressREADtodeletethepreviouslyenteredcharacter.—or—

17Operatingthemeter

5 PressEXITtoreturntotheupperlevelofthemenu.

Theentriesarerejected.

4.8.2 EnteringIDs/PINThefoursoftkeysandREADkeyareusedfornavigatingonthekeypadandenteringtheID/PIN.

Example:WATER1 If1ishighlighted,press once.

Qishighlighted.

2 Press once.

Wishighlighted.

3 PressREADtoenterW.

4 RepositioningthehighlightedbartoA,T,EandR,andpressREADtoentereachletterofsam-pleIDinsequenceasdescribedinsteps1-3.

5 RepositionthehighlightedbartoOK,andpressREADtosavethesampleID.

InsteadofenteringanIDwiththealphanumerickeypad,onecanalsouseaUSB-keyboardoraUSB-barcodescanner.Incaseacharacterisenteredorscannedthatisnotpresentontheinstru-mentkeyboarditwilldisplaytheentryasanunderscore(_).

4.8.3 EditingvaluesinatableThemeterhasafeature,whichallowstheusertoenter,editorremovevaluesintables.(forexam-ple,temperatureandbuffervaluesforacustomizedbuffergroup).Thisisaccomplishedbyusingthesoftkeysonthedisplaytonavigatefromcelltocell.

1 PressREADtostarteditingthecellinthetable.

Thesoftkeysonthedisplaychange.

2 Press and toenterthevalueandpressREADtoconfirm.

Thesoftkeyschangebackto and .

3 NavigatetoacellandpressDeletetoremoveavalue.

4 Tofinisheditingthetable,navigatewiththe and tohighlightSave.

5 PressREADtoconfirmtheactionandexitthemenu.

4.9 CalibrationCalibrationisonlypossibleinthefull-informationscreen.WhenstartingacalibrationbypressingtheCALkeywhiletheinstrumentdisplaystheclose-upscreen,itwillautomaticallyswitchtothefull-informationscreen.

1 PlacetheelectrodeinacalibrationstandardandpressCAL.

Cal1appearsonthedisplay

2 ThemeterendpointsaccordingtothepreselectedendpointmodeafterthesignalhasstabilizedorafterpressingREAD.

Thecalibrationresultisshownonthedisplay.

3 PressSavetosavetheresult.—or—

18 Operatingthemeter

4 PressExittorejectthecalibrationandreturntosamplemeasurement. Thesecondpointrequiredfortheconductivitycalibrationcurveispermanentlyprogrammed

inthemeterandis0S/mforaspecificresistivitymovingtowardinfinity.Toensurethemostaccurateconductivityreadings,verifythecellconstantwithastandardsolutionregularlyandrecalibrateifnecessary.

4.10 Samplemeasurements PlacethesensorinthesampleandpressREADtostartameasurement.

• Thedisplayshowsthereadingsofthesample.• Theendpointformatblinks,indicatingameasurementisinprogress.

Assoonasthemeasurementisstable,theStabilityiconappears.

Ifthe“automaticendpoint”formatisselected,themeasurementstopsautomaticallyassoonastheStabilityiconappears.

Ifthe“manualendpoint”formatisselected,pressREADtomanuallystopthemeasurement. Ifthe“timedendpoint”formatisselected,themeasurementstopsafterthepresettime.

4.11 DatatransferItispossibletotransfereitheralldataorauser-definedsetofdatafromthememorytoaMETTLERTOLEDOprinter(forexampleRS-P26),toaPCbyusingLabXdirectortoaUSBmemorystick.

Thefollowingsectiondescribeshowtoproceedwiththedifferentconfigurations.

Datatransferfromthemetertoaprinter1 ConnecttheRS232cabletothemeterandthecorrespondinginterfaceonthebacksideofthe

printer.

2 Selecttheinterface“printer”inthedatatransfersettingsmenu(see“Setup:DataTransferSet-tings”).

3 Starttransferinthedatamenu.

Forsomeprinters(e.g.RS-P25,RS-P26andRS-P28),thebaudratesettingswillbeautomaticallysynchronizedwiththoseoftheinstrument.

Forotherprintersthesettingsfordatatransferintheprinterneedtobeadjustedasfollows:

Baudrate:1200 Databits:8 Parity:none Stopbits:1

DatatransferfromthemetertoLabXdirectpH1 ConnecttheinstrumentviaUSBBtothePC.

The iconappearsonthedisplay.

2 Selecttheinterface“LabXdirect”inthedatatransfersettingsmenu(see“Setup:DataTrans-ferSettings”).

3 OpenLabXdirectpHandselectthecorrectinstrument.

4 SelecttheitemandTransferinthedatamenutostartthetransfer.

19Operatingthemeter

DataexportfromthemetertoaUSBstick1 InserttheUSBstickintothecorrespondinginterfaceofthemeter.

Theicon appearsonthedisplay.

2 SelecttheitemandExporttoUSB-Stickinthedatamenutostartthetransfer.

Thedatawillbeintext(extension.txt)format.TheinstrumentwillcreateanewfolderontheUSB-stickinwhichthenameisthedateintheinternationalformat,i.e.firstyear,thenmonthandthentheday.Example:whenthedateis25November2011,thenameofthefolderwillbe:20111125.

Thedatawillbewrittenasatextfilewithanamethatconsistsofthetimein24hformat(hrminsec)withaprefixdependingonwhatkindofdataisexported.ThisprefixisMformeasurementdataandCforcalibrationdata.Example:whencalibrationdataareexportedat15:12:25(3:12:25pm)thenameofthefilewillbe:C151225.txt

PressingEXITduringtheexportingabortstheprocess

4.12 TemperaturecompensationWerecommendtheuseofeitherabuilt-inoraseparatetemperatureprobe.Ifatemperatureprobeisused,ATCandthesampletemperaturearedisplayed.Ifnotemperaturesensorisused,MTCisdisplayedandthesampletemperatureshouldbeenteredmanually.

Intheconductivitymode,themeterusesthistemperaturetocalculatewiththeenteredalpha-coef-ficient(orwithnon-linearcorrection)theconductivityvaluebacktothechosenreferencetempera-ture.

20 Operatingthemeter

5 Setup

5.1 MenustructureofsetupTheindividualitemsofthemenusetuparedescribedonthepagesfollowingthelistbelow.

1. SampleID 5. Systemsettings

1.EnterSampleID 1.Language

2.SelectSampleID 2.TimeandDate

3.DeleteSampleID 3.AccessControl

2. UserID 4.Beep

1.EnterUserID 5.Routine/ExpertMode

2.SelectUserID 6.ScreenSettings

3.DeleteUserID 6. Service

3. Stirrer 1.SoftwareUpdate

1.StirBeforeMeasurement 2.ExportSettingstoUSB-stick

2.StirDuringMeasurement 3.FactoryReset

3.StirSpeed 7. InstrumentSelf-test

4.StirrerVoltageSettings

4. DataTransferSettings

1.DataLogging

2.Interface

3.PrintoutFormat

5.2 SampleIDAnalphanumericsampleIDwithupto16characterscanbeentered.Alternatively,apreviouslyenteredsampleIDcanbeselectedfromthelist.IfasampleIDhasbeenentered,whichiseitherpurelynumeric(forexample,123)orendswithanumber(forexample,WATER123),thefollow-ingoptionsareavailable:

1. <AutoSequential>OnUsingthissettingwillautomaticallyincrementthesampleIDby1foreachreading.

2. <AutoSequential>OffThesampleIDisnotincrementedautomatically.

Amaximumof10sampleIDsarestoredinmemoryandlistedforselection.Ifthemaximumof10hasalreadybeenentered,asampleIDcaneitherbedeletedmanuallyortheoldestIDwillbeauto-maticallyoverwrittenbythenewID.

ThisinstrumentallowsaspecialprocessforusersthatwouldliketoenterthesampleIDinaquickerway.Whenthehomescreenisshown,whilenomeasurementorcalibrationisrunning,typingonaUSB-keyboardorscanningwithabarcodereader,resultsinajumpinthesampleIDentryscreenandtheenteredcharactersareshown.Incaseacharacterisenteredorscannedthatisnotpresentontheinstrumentkeyboard(see“Operatingthemeter:EnteringIDs/PIN”).Itwilldis-playtheentryasanunderscore(_).

5.3 UserIDAuserIDwithupto16characterscanbeentered.Alternatively,apreviouslyentereduserIDcanbeselectedfromthelist.

21Setup

Amaximumof10userIDsarestoredinmemoryandlistedforselection.Ifthemaximumof10hasalreadybeenentered,auserIDcaneitherbedeletedmanuallyortheoldestIDwillbeauto-maticallyoverwrittenbythenewID.

5.4 StirrerTheusercanconnecttheMETTLER-TOLEDOexternalmagneticstirrertotheinstrument.Thisstir-rerispoweredbytheinstrumentandwillbeautomaticallyswitchedon/offaccordingtothesettingsbytheuser.

1.StirBeforeMeasurement <StirBeforeMeasurement>On

Usingthissettingwillincludeastirringperiodbeforethemeasurementstarts(afterpressingREAD).Theusercansetthetimebetween3sand60s.

<StirBeforeMeasurement>OffNostirringbeforethemeasurementwilltakeplace.

2.StirDuringMeasurement <StirDuringMeasurement>On

Usingthissettingwillresultsinstirringduringthemeasurement.Whenthemeasurementend-points,thestirrerisautomaticallyswichedoff.

<StirDuringMeasurement>OffNostirringduringthemeasurementwilltakeplace.

3.StirSpeed Theusercanadjustthestirspeedofthestirreraccordingtohispreferencesandthecharacter-

isticsofthesample. Astirspeedbetween1and5canbeselected,with5beingfastest.

Toindicatethattheinstrumentisstirringwhentheoption“StirBeforeMeasurement”hasbeenselected,theinstrumentwilldisplaytheicon .

5.5 DataTransferSettings

1.DataLoggingThemeterstoresupto1000setsofmeasurementdatainthememory.Thenumberofdatasetsal-readystoredinthememoryisindicatedbyMXXXXonthedisplay.Amessageappearsonthedis-playwhenthememoryisfull.Tosavefurthermeasurementsifthememoryisfull,datahastobedeletedfirst.Youcanselectbetweenautomaticandmanualstorage.

1. AutomaticstorageStores/transferseveryendpointedreadingtothememory/interfaceorbothautomatically.

2. ManualstorageIf“ManualStorage”isset,Storeappearsonthedisplayassoonasameasurementhasend-pointed.PressStoretosave/transferendpointedreadings.Theendpointedreadingcanonlybestoredonce.Whenthedataisstored,Storedisappearsfromthemeasurementscreen.WhentheStorekeyisshownbutyougointothemenusettingsbeforesavingthemeasure-ment,theStorekeywillnotbepresentanymorewhenyouexitthemenusettingsandreturntothemeasurementscreen.

22 Setup

2.InterfaceSelecttotransferthedatainthememorytoaPrinter,LabXDirectorboth.Themeteradjuststhebaudratetothefollowingsettingsincasenoautomaticbaudratesynchronizationoccurs(onlypossiblewithUSBandtheprintersRS-P25,RS-P26andRS-P28):

1. PrinterBaudrate:1200Databits:8Parity:noneStopbits:1Handshake:none

2. LabXdirectThesettingsbetweentheinstrumentandPCareadjustedautomaticallybecauseUSBconnec-tionisplug-and-play

3. Printer+LabXdirectThesettingslistedabovefor1.and2.areused.

3.PrintoutFormatThreedifferentprintoutformatsareavailable:GLP,NormalandShort.Theprintoutscanbeprint-edinsixdifferentlanguages,dependingonwhichlanguageiscurrentlyselectedinSetup(English,German,French,Italian,SpanishandPortuguese).ForallotherlanguagestheprintoutswillbeinEnglish.

*IfLabXdirectisselected,theprintoutformatisalwaysGLPandEnglish.LabXdirectPCsoftwaretranslatesthereceiveddataintotheselectedPClanguageasdefinedintheregionalandlanguageoptions.

Examples:ConductivityprintoutGLP Conductivityprintoutnormal Conductivityprintoutshort

23Setup

5.6 SystemsettingsThesystemsettingsmenuisprotectedbyaPIN.Upondelivery,thePINissetto000000andisactivated.PleasechangethePINtopreventunauthorizedaccess.

1.LanguageThefollowinglanguagesareavailableforthesystem:English,German,French,Spanish,Italian,Portuguese,Chinese,Japanese,KoreanandRussian.

2.TimeanddateWhenstartingthemeterforthefirsttime,thedisplayforenteringtimeanddateappearsautomati-cally.

Inthesystemsettings,twotimeandfourdatedisplayformatsareavailable:

Time24-hourformat(forexample,06:56and18:56)

12-hourformat(forexample,06:56AMand06:56PM) Date:

28-11-2010(day-month-year)

11-28-2010(month-day-year)

28-Nov-2010(day-month-year)

28/11/2010(day-month-year)

3.AccesscontrolPINsettingsareavailablefor:

1. Systemsettings

2. Deletingdata

3. Instrumentlogin

1 SwitchPINprotectionfortherequiredaccesscontrolON.Thewindowforenteringanalphanu-mericPINappears.

2 EnteranalphanumericPIN(max.6characters).

TheinputwindowforPINverificationappears.

3 ConfirmPIN.

Amaximumof6characterscanbeenteredasPIN.Inthefactorydefaultsettings,thePINforsys-temsettingsanddeletingdataissetto000000andisactivated,noinstrumentloginpasswordisset.

4.BeepAnacousticsignalcanbeswitchedoninthefollowingthreecases:

1. Keyispressed

2. Alarm/warningmessageappears

3. Measurementisstableandhasendpointed(stabilitysignalappears)

5.Expert/RoutinemodesThemeterhastwoworkingmodes:

Expertmode:thefactorydefaultsettingenablesallfunctionsofthemeter. Routinemode:someofthemenusettingsareblocked.

24 Setup

TheconceptofthetwoworkingmodesisaGLPfeaturethatensuresthatimportantsettingsandstoreddatacannotbedeletedcannotbeunintentionallychangedunderroutineworkingconditions.

Themeteronlyallowsthefollowingfunctionsintheroutinemode:

Calibratingandmeasuring Editinguser,sampleandsensorIDs EditingtheMTCtemperature Editingdatatransfersettings Editingsystem-settings(PIN-protected) Runningtheinstrumentself-test

Storing,viewing,printingandexportingdata ExportingsettingstoUSB-stick

6.ScreensettingsScreenBrightnessThescreenbrightnesscanbesetfromlevels1to16.

ScreenSaverTheamountoftimecanbesetwhichpassesbeforethescreensaverisactivated:5-99minutes

Ifthemeterisnotoperatedduringthistime,thescreensaverisactivated.Pressanykeyandthedisplayisactivatedagain,independentofthefunctionofthekey.

ScreenColorThedisplaybackgroundcolorblue,grey,redorgreencanbeselected.

Thedisplayhasalimitedlifetime;thereforewerecommendactivatingthescreensaverorswitchingoffthemeterwhennotinoperation.

Ifaninstrumentloginpasswordisset,thispasswordisrequiredafteractivatingthedisplayagain.

5.7 Service

1.SoftwareUpdateIncaseanewersoftwareversionisavailable,theusercanperformasoftwareupdateviaUSB-stick,byadheringtothefollowingprocess:

1 MakesurethatthefirmwareisintherootdirectoryoftheUSB-stickandhasanameS<xxx>v<yyy>.bin,with<xxx>beingthenumberoftheinstrumenttype(220forpH/Ionme-terand230forconductivitymeter)and<yyy>beingtheversionnumber.

2 ConnecttheUSB-sticktotheinstrument

3 Selecttheoption“softwareupdate”

Amessageappearsthatthesoftwareupdateistinprogress

4 Whenthesoftwareupdateiscompletedyouneedtorestarttheinstrumentforthechangestobecomeeffective.

25Setup

Afterthesoftwareupdatetheinstrumentisswitchedbacktofactorysettings.AllunsaveddatawillbelostandthePINwillbesetbackto“000000”.

IncasetheUSB-stickisremovedduringtheupdateprocessorthepoweradapterispluggedout,theinstrumentcannotbeswitchedonanymore.PleasecontactMETTLERTOLEDOserviceinthatcase.

2.ExportSettingstoaUSB-stickWiththisfeaturetheusercanexportthesettings.Thesecanforexamplebesentviae-mailtoacustomerservicerepresentativeincasedifficultiesoccur,sothatitiseasierforthecustomerser-vicerepresentativetoprovidesupport.

1 InserttheUSBstickintothecorrespondinginterfaceofthemeter

The iconappearsonthedisplay

2 SelecttheitemandExportSettingstoUSB-Stickintheservicemenutostartthetransfer

Thesettingswillbeintext(extension.txt)format.TheinstrumentwillcreateanewfolderontheUSB-stickinwhichthenameisthedateintheinternationalformat,i.e.firstyear,thenmonthandthentheday.

Example:whenthedatais25November2011,thenameofthefolderwillbe:20111125.

Thedatawillbewrittenasatextfilewithanamethatconsistsofthetimein24hformat(hrminsec)withtheprefixS.

Example:whensettingsareexportedat15:12:25(3:12:25pm)thenameofthefilewillbe:S151225.txt

PressingEXITduringtheexportingabortstheprocess

3.FactoryResetWhenthefactoryresetisperformed,theinstrumentwillrevertbacktotheoriginalsettingswhentheinstrumentleftthefactory.AlldatawillbelostandthePINisset-backtotheoriginalPIN“000000”.

5.8 Instrumentself-testTheinstrumentself-testrequiresuserinteraction.

1 IntheSetupmenu,select“6.InstrumentSelf-test”.

Selectingthemenuitemstartstheself-testroutine.

2 Pressthefunctionkeysonthekeypadonebyoneinanyorder.

Theself-testresultisdisplayedafterafewseconds.

Themeterreturnstothesystemsettingsmenuautomatically.

Theuserneedstofinishpressingallsevenkeyswithintwominutes,otherwise“Self-testfailed!”appearsandtheprocedurehastoberepeated.

Iferrormessagesrepeatedlyappear,contactMETTLERTOLEDOService.

26 Setup

6 Menusandsettings

6.1 Menustructureofconductivity

1. SensorID/SN 4. EndpointFormats

2. CalibrationSettings 5. TimedIntervalReadings

1.CalibrationStandard 6. TemperatureSettings

2.CalibrationReminder 1.SetMTCTemperature

3. MeasurementSettings 2.TemperatureUnit

1.ReferenceTemperature 7. MeasurementLimits

2.TemperatureCorrection

3.TDSFactor

4.ConductivityUnit

5.ConductivityAsh

6.2 SensorID/SN

1.EnterSensorID/SNAnalphanumericsensorIDwithupto12characterscanbeentered.ThesensorIDwillbeas-signedtoeachcalibrationandmeasurementvalue.Thisisvaluablefortracingbackdata.

Themaximiumnumberofsensorsis30.Whenthisnumberhasbeenreached,firstasensorhastobedeletedbeforeanewsensorcanbecreated(seethenoteattheendofthissectionhowtodeleteasensor).

IfanewsensorIDisentered,acellconstantof1cm-1willbeuseduntilthesensorhasbeencal-ibrated.

IfyouenterasensorIDwhichalreadyexistsinthememoryandforwhichavalidcalibrationisstored,theinstrumentwillloadthespecificcalibrationdataforthissensorID.

WhenconnectinganISM®sensortothemeter,themeterwill:

Automaticallyrecognizethesensorwhenit’sturnedon(alternatively,whenpressingREADorCAL)

LoadthestoredsensorID,sensorSNandsensortypeaswellasthelatestcalibrationdataofthissensor

Usethiscalibrationforthesubsequentmeasurements

ThesensorIDforISM®sensorscanbechanged.SensorSNandsensortype,however,areblockedformodification.

2.SelectSensorIDAlreadyenteredsensorIDscanbeselectedfromalist.

IfasensorIDisselected,whichisalreadyinthememoryofthemeterandhasbeencalibratedbe-fore,thespecificcalibrationdataforthissensorIDwillbeloaded.

YoucandeleteasensorIDwithitscalibrationsinthecalibrationdatamenu.

27Menusandsettings

6.3 Conductivitycalibrationsettings

Calibrationstandard

-PredefinedconductivitystandardThefollowingconductivitystandardsareavailable:

International:

10 μS/cm 84 μS/cm 500 μS/cm 1413 μS/cm 12.88 mS/cm saturatedNaCl

Chinese:

146.5 μS/cm 1408 μS/cm 12.85 mS/cm 111.35 mS/cm

Japanese:

1330.00 μS/cm 133.00 μS/cm 26.6 μS/cm

-CustomizedconductivitystandardThisoptionisforuserswhowouldliketousetheirownconductivitystandardforcalibrationoftheconductivitysensor.Upto5temperature-dependentvalues(inmS/cmonly)canbeenteredinthetable.Lowestpossiblespecialstandard:0.00005 mS/cm(0.05 μS/cm).Thisvaluecorrespondstotheconductivityofpurewaterat25°C,exclusivelycausedbytheautoprotolysisofwater.

Whenswitchingfromapredefinedstandardtocustomizedstandard,youshouldalwayssavethetableevenifnovalueshavechanged.

-CellconstantIfthecellconstantoftheconductivitycellbeingusedisaccuratelyknown,itcanbeentereddirect-lyinthemeter.

1 SelectEnterCellConstantinthemenu

2 Returntothemeasurementdisplay

3 PressCALinthemeasurementdisplay

4 Theuserispromptedtoenterthecellconstant

CalibrationreminderWhenthecalibrationreminderis“On”,theuserisremindedtoperformanewcalibrationafteracertainuser-definedinterval(maximum9999h)haselapsed.

PressREADtosavetheintervalandanotherscreenappearstoselectcalibrationexpirationdate.

Fourdifferenttimespanscanbeprogrammed.Inallfourcases,awarningmessageappearsthattheelectrodeshouldbecalibrated.

ImmediatelyThemeterisimmediatelyblockedformeasurementwhenthepredefinedintervalhaselapsed.

Reminder+1hThemeterisblockedformeasurement1hourafterthepredefinedintervalhaselapsed.

Reminder+2hThemeterisblockedformeasurement2hoursafterthepredefinedintervalhaselapsed.

ContinueReadingTheusercancontinuemeasuringwhenthepredefinedintervalhaselapsed.

28 Menusandsettings

6.4 Conductivitymeasurementsettings

ReferenceTemperatureTworeferencetemperaturesareavailable:20°C(68°F)and25°C(77°F).

TemperatureCorrectionTherearefouroptions:

linear non-linear purewater off

Withmostsolutions,alinearinterrelationshipbetweenconductivityandtemperatureisgiven.Insuchcases,selectthelinearcorrectionmethod.

Theconductivityofnaturalwatershowsstrongnon-lineartemperaturebehavior.Forthisreason,usethenon-linearcorrectionfornaturalwater.

Theoptionpurewatershouldonlybeusedforcasesinwhichultra-pureorpurewaterismea-sured.

Insomecases,forexample,whenmeasuringaccordingtoUSP/EP(UnitedStates/EuropeanPhar-macopoeia)youneedtoswitchoffthetemperaturecorrection.Thiscanalsobedonebyenteringalineartemperaturecorrectionfactorof0 % /°C.

-LinearWhenselectinglinearcorrection,theinputwindowforthetemperaturecorrectioncoefficient(0.000–10.000 % /°C)appears.

Themeasuredconductivityiscorrectedanddisplayedusingthefollowingformula:

GTRef=GT/(1+(α (T–TRef))/100 %)

GT:conductivitymeasuredattemperatureT(mS/cm)GTRef:conductivity(mS/cm)displayedbytheinstrument,calculatedbacktothereferencetemper-atureTRefα :lineartemperaturecorrectioncoefficient(%/°C);α =0:notemperaturecorrectionT:measuredtemperature(°C)TRef:Referencetemperature(20°Cor25°C)

Eachsamplehasdifferenttemperaturebehavior.Forpuresaltsolutionsthecorrectcoefficientcanbefoundinliterature,otherwiseyouneedtodeterminetheα -coefficientbymeasuringtheconduc-tivityofthesampleattwotemperaturesandcalculatethecoefficientbyusingtheformulabelow.

α =(GT1-GT2)*100%/(T1-T2)/GT2

T1:TypicalsampletemperatureT2:ReferencetemperatureGT1:MeasuredconductivityattypicalsampletemperatureGT2:Measuredconductivityatreferencetemperature

-Non-linearTheconductivityofnaturalwatershowsstrongnon-lineartemperaturebehavior.Forthisreason,usethenon-linearcorrectionfornaturalwater.

Themeasuredconductivityismultipliedbythefactorf25forthemeasuredtemperature(see“Appen-dix”)andthuscorrectedtothereferencetemperatureof25°C:

29Menusandsettings

Ifanotherreferencetemperatureisused,forexample20°C,theconductivitycorrectedto25°Cisdividedby1.116(seef25for20.0°C)

GT20=(GT·f25)/1.116

Conductivitymeasurementsofnaturalwatercanonlybeperformedattemperaturesrangingfrom0°Cto36°C.Otherwise,thewarningmessage“Temp.outofnLFcorrectionrange”appears.

PurewaterSimilartonon-linearcorrectionfornaturalwateradifferenttypeofnon-linearcorrectionisusedforultra-pureandpurewater.Thevaluesarecompensatedintherangefrom0.005to5.00μS/cmattemperatures(0-50°C)thatdifferfromthereferencetemperature(25°C).Thiscouldforexamplebewhencheckingthepureorultra-purewaterproductionequipment,orwhencheckingiftheclean-ing-in-progressprocedureforwhichultra-purewaterhasbeenusedhadledtotheremovalofallsolublesubstances.DuetothehighinfluenceofCO2fromtheair,westronglysuggesttousetheflow-through-cellforthistypeofmeasurements.

Conductivitymeasurementsusingthepurewatercompensationmodecanonlybeperformedattemperaturesrangingfrom0°Cto50°C.Otherwise,thewarningmessage“Temp.outofpurewaterrange”appears.

Incasetheconductivityreadingexceedstheupperlimitof5.00μS/cminthemodepurewar-er,thecompensationwillresemblealinearcompensationmodewithα=2.00%/°C.

TDSfactor

TDS(Totaldissolvedsolids)iscalculatedbymultiplyingtheconductivityvaluewiththeTDSfactor.Afactorbetween0.40and1.00canbeentered.

ConductivityUnitOnecanchoosethefollowingconductivityunitsfordisplayintheconductivitymode:

μS/cm&mS/cm

TheinstrumentwillswitchautomaticallybetweenμS/cmandmS/cmdependingonthemeasure-mentvalue.Thisunitisthestandardformostconductivitymeasurements.

μS/m&mS/m

TheinstrumentwillswitchautomaticallybetweenμS/mandmS/mdependingonthemeasurementvalue.ThisunitisforexampleusedfordeterminationoftheconductivityofethanolaccordingtotheABNT/ABR10547method.

ConductivityAshConductivityAsh(%)isanimportantparameterthatreflectsthecontentofsolubleinorganicsaltsinrefinedsugarorrawsugar/melasses.Thesesolubleinorganicimpuritiesdirectlyaffectthepu-rityofthesugar.ThismetercanmeasureconductivityashaccordingtothefollowingtwoICUMSAmethods(see“Appendix:Conductivityashmethods”):

28g/100gsolution(refinedsugar-ICUMSAGS2/3-17) 5g/100mLsolution(rawsugar–ICUMSAGS1/3/4/7/8-13)

Theinstrumentwilldirectlyconvertthemeasuredconductivitytoconductivityash%accordingtotheselectedmethod.

Theuserhasthepossibilitytoentertheconductivityoftheusedwaterforpreparingthesugarsolu-tionsinμS/cm(0.0to100.0μS/cm).Thisvalueisthenusedforcorrectingthemeasuredconduc-tivityashvaluesaccordingtotheformulaegivenin“Appendix:Conductivityashmethods”.

30 Menusandsettings

Conductivityashmeasurementsareonlypossibleinthetemperaturerangefrom15°Cto25°C

GT25=GT*f25

6.5 EndpointformatsAuto

Withtheautomaticendpointtheselectedstabilitycriteriondeterminestheendofanindividualreadingdependingonthebehaviorofthesensorused.Thisensuresaneasy,quickandprecisemeasurement.

1 Placesensorinthesample.

2 PressREAD.

Aappearsonthedisplay.

Themeasurementendsautomaticallywhenthemeasuredvalueisstable. appears.

IfREADispressedbeforethesignalisstable,theendpointformatchangestomanual .

Manual

UnlikeAuto,userinteractionisrequiredtostopthemeasurementreadinginmanualmode.1 Placesensorinthesample.

2 PressREAD.

Mappearsonthedisplay.

appearsonthedisplaytosignalizemeasurementstability.

3 PressREADtoendthemeasurement. appears.

Timed

Themeasurementstopsafterthesettime,whichcanbesetbetween5sand3600s.

1 Placesensorinthesample.

2 PressREAD.

Tappearsonthedisplay.

appearsonthedisplaytosignalizemeasurementstability.

Themeasurementendsautomaticallywhenthesettimeperiodexpires. appears.

IfREADispressedbeforethesignalisstable,theendpointformatchangestomanual .

InformationonthedisplayThefollowingsymbolsappearinthedisplay,dependingontheendpointsetting.

1Theactualendpointformat(lastcolumn)andnotthepreselectedisstoredwiththedata.

31Menusandsettings

6.6 TimedIntervalReadingsAreadingistakeneverytimeafteracertaininterval(1–2400s)definedinthemenuhaselapsed.Whenworkinginthetimed-intervalreadingmode,theintervalcanbedefinedbyenteringtheseconds.ThemeasurementseriesstopsaccordingtotheselectedendpointformatormanuallybypressingREAD.Whentimed-intervalreadingis“on”,theDLicon appears.

Thereadingscanbestoredinthememory,transferredtotheinterfaceorboth.

6.7 Temperaturesettings SetMTCtemperature

Ifthemeterdoesnotdetectatemperatureprobe,MTCappearsonthedisplay.Inthiscasethesampletemperatureshouldbeenteredmanually.AnMTCvaluebetween-30°Cand130°Ccanbeentered.

TemperatureunitSelectthetemperatureunit:°Cor°F.Thetemperaturevalueisautomaticallyconvertedbetweenthetwounits.

6.8 MeasurementlimitsTheupperandlowerlimitsformeasurementdatacanbedefined.Ifalimitiseithernotreachedorexceeded(inotherwords,lessthanorgreaterthanaspecificvalue),awarningisdisplayedonthescreenandmaybeaccompaniedbyanacousticsignal.Themessage“outsidelimits”alsoap-pearsontheGLPprintout.

32 Menusandsettings

7 Datamanagement

7.1 Menustructureofdatamenu

1. Measurementdata 3. ISMdata

1.Review 1.InitialCalibrationData

2.Transfer 2.CalibrationHistory

3.Delete 3.MaximumTemperature

4.ExporttoUSB-stick 4.ResetISM

2. Calibrationdata

1.Review

2.Transfer

3.Delete

4.ExporttoUSB-stick

7.2 Measurementdata

Review

AllAllstoredmeasurementdatacanbereviewed;themostrecentdatasavedappearsonthedisplay.

PressTransfertosendthemeasurementdata(currentsingleset)totheprinterorPC.

PartialThemeasurementdatacanbefilteredaccordingto3criteria.

Memorynumber(fromMXXXXtoMXXXX) SampleID Measurementmode

Memorynumber1 EnterthememorynumbersofthedataandpressSelect.

Themeasurementdataisdisplayed.

2 Scrollthroughthemeasurementdatatoreviewallmeasurementsbetweenthetwomemorynumbers.

3 PressTransfertosendthemeasurementdata(currentsingleset)totheprinterorPC.

SampleID1 EnterthesampleIDandpressOK.

ThemeterfindsallstoredmeasurementswiththissampleID.

2 ScrollthroughthemeasurementdatatoreviewallmeasurementswiththeenteredsampleID.

3 PressTransfertosendthemeasurementdata(currentsingleset)totheprinterorPC.

Measurementmode1 Selectameasurementmodefromlist.Themeterfindsallstoredmeasurementsoftheselect-

edmeasurementmode.

2 Scrollthroughthemeasurementdataoftheselectedmeasurementmode.

3 PressTransfertosendthemeasurementdata(currentsingleset)totheprinterorPC.

33Datamanagement

TransferAllorpartiallystoredmeasurementdatacanbetransferredbyfilteringthemeasurementdata.Thefilterworksasdescribedabovein“Review”.

PressSelecttosendthefilteredmeasurementdatatotheprinterorPC.

DeleteAllorpartiallystoredmeasurementdatacanbedeletedbyfilteringthemeasurementdata.Thefilterworksasdescribedabovein“Review”.

DeletionisprotectedbyaPIN.Upondelivery,thePINissetto000000.ChangethePINcodetopreventunauthorizedaccess.

ExporttoUSB-stickAllorpartiallystoredmeasurementdatacanbetransferredtoaUSB-stick.Thefilterworksasde-scribedabovein“Review”.Moreinformationaboutthefileformatisgivenin“Operatingthemeter:Datatransfer”

PressTransfertoexportthefilteredmeasurementdatatotheUSB-stick.

7.3 CalibrationdataCalibrationdatacanbereviewed,transferredanddeleted.ThelatestcalibrationpersensorIDisstoredinthememory.WhenusingISM-Sensors,thelatest5calibrationdatacanbeviewed/printed(See“Datamanagement:ISMdata”).

Review1 PressSelect.

AlistofcalibratedsensorIDsappears.

2 SelectasensorIDfromthelist.

ThecalibrationdataisshownforthissensorID—or—

3 PressandholdCALfor3secondsinthemeasurementscreen.

4 PressTransfertosendthedisplayedcalibrationdatatoaprinterorPC.

Transfer1 PressSelect.

AlistofcalibratedsensorIDsappears.

2 SelectasensorIDfromthelist.

ThecalibrationdataoftheselectedsensorIDistransferredtoaprinterorPC.

34 Datamanagement

Delete1 PressSelect.

AlistofsensorIDsappears.

2 SelectasensorIDfromthelist.

3 PressYeswhenthemessage“Selecteddatawillbedeleted.Pleaseconfirm”appears.—or—

4 PressExittocancel.

Afterdeletion,thesensorIDdisappearsfromthelistinthesensorIDmenu.

AnactivesensorIDcannotbedeleted. ThismenuisprotectedbyadeletionPINcode.Upondelivery,thePINcodeissetto000000.

ChangethePINcodetopreventunauthorizedaccess.

ExporttoUSB-stickStoredcalibrationdatapersensorIDcanbetransferredtoaUSB-stick.

1 PressSelect.

2 SelectasensorIDfromthelist.

3 PressTransfertoexportthecalibrationdataoftheselectedsensorIDtotheUSB-stick.

7.4 ISMdataSevenCompactmeterincorporatesIntelligentSensorManagement(ISM®)technology.Thisinge-niousfunctionalityprovidesextrasecurity,safetyandeliminatesmistakes.Themostimportantfea-turesare:

Extrasecurity!

AfterconnectingtheISM®sensor,thesensorisautomaticallyrecognizedandthesensorIDandserialnumberaretransferredfromthesensorchiptothemeter.ThedataisalsoprintedontheGLPprintout.

AftercalibrationoftheISM®sensor,thecalibrationdataisautomaticallystoredfromthemetertothesensorchip.Themostrecentdataisalwaysstoredwhereitshouldbe–onthesensorchip!

Extrasafety!

AfterconnectingtheISM®sensor,thefivemostrecentcalibrationsaretransferredtothemeter.Thesecanbereviewedtoseethedevelopmentofthesensorovertime.Thisinformationprovidesanindicationifthesensorshouldbecleanedorrenewed.

Eliminatemistakes!

AfterconnectinganISM®sensor,thelastsetofcalibrationdataisautomaticallyusedformeasure-ments.

Additionalfeaturesaredescribedbelow.

35Datamanagement

ResetISM®Thecalibrationhistoryinthismenucanbedeleted.ThismenuisprotectedbyadeletionPIN.Upondelivery,thePINfordeletionissetto000000.ChangethePINtopreventunauthorizedaccess.

36 Datamanagement

CalibrationhistoryThelast5calibrationsdatastoredinISM®sensorincludingcurrentcalibrationcanbereviewedortransferred.

MaximumtemperatureThemaximumtemperaturethattheISM®sensorhasbeenexposedtoduringmeasurementismon-itoredautomaticallyandcanbereviewedfortheevaluationoftheelectrodelifetime.

InitialcalibrationdataWhenanISM®sensorisconnected,theinitialcalibrationdatainthesensorcanbereviewedortransferred.Thefollowingdataisincluded:

Responsetime Temperaturetolerance Cellconstant Cellconstanttolerance Type(andname)ofelectrode(forexample,InLabExpertProISM) Serialnumber(SN)andordering(ME)number Productiondate

8 Maintenance

8.1 MetermaintenanceNeverunscrewthetwohalvesofthehousing!

Themetersdonotrequireanymaintenanceotherthananoccasionalwipewithadampcloth.Thehousingismadeofacrylonitrilebutadienestyrene/polycarbonate(ABS/PC).Thismaterialissensi-tivetosomeorganicsolvents,suchastoluene,xyleneandmethylethylketone(MEK).

Anyspillageshouldbewipedoffimmediately.

8.2 Disposal

IncompliancewithEuropeanDirective2002/96/EConWasteElectricalandElectronicEquipment(WEEE),thisinstrumentmustnotbedisposedoftogetherwithdomesticwaste.ThisalsoappliestocountriesoutsidetheEU,pertheirspecificrequirements.Pleasedisposeofthisproductinaccordancewithlocalregulationsatthecollectingpointspecifiedforelectricalandelectronicequipment.

Ifyouhaveanyquestions,pleasecontacttheresponsibleauthorityorthedistributorfromwhichyoupurchasedthisinstrument.

Shouldthisinstrumentbepassedontootherparties(forprivateorprofes-sionaluse),thecontentofthisregulationmustalsoberelated.

Thankyouforyourcontributiontoenvironmentalprotection.

8.3 ErrormessagesMessage DescriptionandResolution

Conductivity/TDS/salinity/resistivity/conductivityash/temperatureexceedsmax.limitConductivity/TDS/salinity/resistivity/conductivityash/temperaturebelowmin.limit

Memoryisfull

Pleasecalibrateelectrode

Measurementlimitsareactivatedinthemenusettingsandmeasuredvalueisoutsidetheselimits.

Checkthesample. Checksampletemperature. MakesurethatthepHelectrodewettingcaphas

beenremovedandthattheelectrodeisproperlycon-nectedandplacedinthesamplesolution.

Max.1000measurementdatacanbestoredinthememory.

Deleteallorpartialdatainthememory,otherwiseyouwillnotbeabletostorenewmeasurementdata.

Calibrationreminderhasbeenswitchedoninthemenusettingsandlastcalibrationhasexpired.

Calibratetheelectrode.

37Maintenance

Message DescriptionandResolution

Activesensorcannotbedeleted

Wrongstandard

Standardtemp.outofrange

Temperaturediffersfromsetting

ISM®sensorcommunicationerror DatahasnotbeentransferredcorrectlybetweenISM®sensorandmeter.ReconnecttheISM®sensorandtryagain.

Self-testfailure

Wrongsettings

Outofrange

DeletingthecalibrationdataoftheselectedsensorIDisnotpossible,becauseitiscurrentlytheactivesensorIDinthemetershownonthedisplay.

EnternewsensorIDinthemenusettings. SelectanothersensorIDfromthelistinthemenu

settings.

Metercannotrecognizethestandard.

Makesurethatyouhavethecorrectstandardandthatitisfresh.

TheATCmeasuredtemperatureisoutofcalibrationstandardrange:5…35°Cforinternationalstandardsand15…35°CforChinesestandards

Keepthestandardtemperaturewithintherange.

Changethetemperaturesetting.

ATCmeasuredtemperaturediffersbymorethan0.5°Cfromtheuser-definedvalue/temperaturerange.

Keepthestandardtemperaturewithintherange. Changethetemperaturesetting.

Self-testhasnotbeencompletedwithin2minutesorme-terisdefective.

Restartself-testandfinishwithin2minutes. ContactMETTLERTOLEDOserviceifproblemper-

sists.

Enteredvaluediffersbylessthan5°Cfromotherpre-setvalues.

Enterahigher/lowervalueinordertogetabiggerdifference.

Eitherenteredvalueisoutofrange.

Enteravaluewhichiswithintherangeshownondisplay.

or

Measuredvalueoutofrange.

Makesuretheelectrodewettingcaphasbeenre-movedandthattheelectrodeisproperlyconnectedandplacedinthesamplesolution.

38 Maintenance

Message DescriptionandResolution

Wrongpassword

Passwordsdonotmatch

Programmemoryerror

Datamemoryerror

Nomatchingdatafoundinmemory

SensorIDalreadyexists,previousSNwillbeoverwritten

Standardtempoutofrange

Temp.outofnLFcorrectionrange

Temp.outofpurewaterrange

Temp.outofconductivityashcorrec-tionrange

Updatefailed

TheenteredPINisnotcorrect.

Re-enterthePIN. Resettofactorysettings,alldataandsettingswill

belost.

TheconfirmationPINdoesnotmatchwiththeenteredPIN.

ReenterPIN.

Meterrecognizesinternalerrorduringstart-up.

Switchthemeteroffandbackon. ContactMETTLERTOLEDOserviceiftheproblemper-

sists.

Thedatacouldnotbestoredintomemory.

Switchthemeteroffandbackon. ContactMETTLERTOLEDOserviceiftheproblemper-

sists.

Theenteredfiltercriteriondoesnotexist.

Enteranewfiltercriterion.

TwosensorswiththesameIDbutdifferentSNarenotal-lowedinthemeter.IfadifferentSNhasbeenenteredforthissensorIDpreviously,theoldSNwillbeoverwritten.

EnteradifferentSensorIDinordertokeeptheprevi-ousIDandSN.

Conductivitycalibrationscanonlybeperformedattem-peraturesfrom0…35°C.

Keepthestandardtemperaturewithintherange.

Conductivitymeasurementsofnaturalwatercanonlybeperformedattemperaturesfrom0…36°C.

Keepthesampletemperaturewithintherange.

Conductivitymeasurementsofpurewatercanonlybeperformedattemperaturesfrom0…50°C.

Keepthesampletemperaturewithintherange.

Conductivityashmeasurementscanonlybeperformedattemperaturesfrom15…25°C.

Keepthesampletemperaturewithintherange.

Thesoftwareupdateprocessfailed.Thiscouldbeduetothefollowingreasons:

TheUSBstickisnotconnectedoritisdisconnectedduringtheupdateprocess

Theupdatesoftwareisnotinthecorrectfolder

39Maintenance

Message DescriptionandResolution

Exportfailed Theexportingprocessfailed.Thiscouldbeduetothefol-lowingreasons:

TheUSBstickisnotconnectedoritisdisconnectedduringtheexportingprocess

TheUSBstickisfull

8.4 ErrorlimitsMessage Rangenotaccepted

Outofrange,determineagain Conductivity <0.00µS/cmor>1000mS/cm

TDS <0.00mg/Lor>600g/LSalinity <0.00psuor>80.0psuResistivity <0.00MΩ•cmor>100.0

MΩ•cmConductivityash <0.00%or>2022%

Standardtemp.outofrange Temperature <0°Cor>35°CATCmeasuredtemperatureisdifferenttotheuser-definedvalue

|tATC-Tstandard|>1°C

Temperatureoutofrange Temperature <-5°Cor>105°CTemp.outofnLFcorrectionrange Temperature <0°Cor>50CTemp.outofpurewaterrange Temperature <0°Cor>50°CTemp.outofconductivityashcorrec-tionrange

Temperature <15°Cor>25°C

40 Maintenance

9 Sensors,solutionsandaccessories

Parts OrderNo.

Solutions10μS/cmconductivitystandardsolution,250mL 5130016984μS/cmconductivitystandardsolution,250mL 51302153500μS/cmconductivitystandardsolution,250mL 513001701413μS/cmconductivitystandardsolution,30x20mL 513020491413μS/cmconductivitystandardsolution,6x250mL 5135009612.88mS/cmconductivitystandardsolution,30x20mL 5130205012.88mS/cmconductivitystandardsolution,6x250mL 51350098

Parts OrderNo.

CommunicationRS-P25printer 11124300RS-P26printer 11124303RS-P28printer 11124304Barcodereader 21901297USBCableforBarcodereader 21901309LabX®directpHPCsoftware 51302876

Parts OrderNo.

GuidesGuidetoconductivityanddissolvedoxygen 51724716

41Sensors,solutionsandaccessories

10 SpecificationsS230conductivitymeterMeasurementrange Conductivity 0.000μS/cm…1000mS/cm

TDS 0.00mg/L...1000g/LSalinity 0.00…80.00psuResistivity 0.00…100.0MΩ•cmConductivityash 0.00…2022%ConductivityATC -5…105°CConductivityMTC -30…130°C

Resolution Conductivity Autorange0.000μS/cm…1.999μS/cm2.00μS/cm…19.99μS/cm20.0μS/cm…199.9μS/cm200μS/cm…1999μS/cm20.0mS/cm…199.9mS/cm200mS/cm...1000mS/cm

TDS Autorange,samevaluesasconductivity

Salinity 0.00psu…19.99psu20.0psu…80.0psu

Resistivity Ω•cm(scientific)0.00Ω•cm…9.99E+6Ω•cmMΩ•cm1.00MΩ•cm…99.99MΩ•cm100.0MΩ•cm

Conductivityash 0.001%ConductivityTemperature 0.1°C

Limitsoferrorconductivity Conductivity ±0.5%ofmeasuredvalueTDS ±0.5%ofmeasuredvalueSalinity ±0.5%ofmeasuredvalueResistivity ±0.5%ofmeasuredvalueConductivityash ±0.5%ofmeasuredvalueTemperature ±0.1°C

Conductivitycalibrationstan-dard

5internationaland4chinesepredefinedstandards

1user-definedstandard

Outputs RS232,USBA,USBBPowerrequirements DC9-12V-10WSize/weight 204x174x74mm

890gDisplay TFTConductivityinput MiniDinDigitalsensorinput Mini-LTWAmbientconditions Temperature 5…40°C

Relativehumidity 5%...80%(non-condensing)Installationcategory IIPollutiondegree 2Altitude Upto2000mabovesealevel

Materials Housing ABS/PCreinforced

42 Specifications

Window Polymethylmethacrylate(PMMA)

Keypad Membranekeypad:Polyethe-leneterephtalate(PET)

43Specifications

11 Appendix

11.1 Temperaturecorrectionfactors

Temperaturecorrectionfactorsf25fornon-linearconductivitycorrection°C .0 .1 .2 .3 .4 .5 .6 .7 .8 .90 1.918 1.912 1.906 1.899 1.893 1.887 1.881 1.875 1.869 1.8631 1.857 1.851 1.845 1.840 1.834 1.829 1.822 1.817 1.811 1.8052 1.800 1.794 1.788 1.783 1.777 1.772 1.766 1.761 1.756 1.7503 1.745 1.740 1.734 1.729 1.724 1.719 1.713 1.708 1.703 1.6984 1.693 1.688 1.683 1.678 1.673 1.668 1.663 1.658 1.653 1.6485 1.643 1.638 1.634 1.629 1.624 1.619 1.615 1.610 1.605 1.6016 1.596 1.591 1.587 1.582 1.578 1.573 1.569 1.564 1.560 1.5557 1.551 1.547 1.542 1.538 1.534 1.529 1.525 1.521 1.516 1.5128 1.508 1.504 1.500 1.496 1.491 1.487 1.483 1.479 1.475 1.4719 1.467 1.463 1.459 1.455 1.451 1.447 1.443 1.439 1.436 1.43210 1.428 1.424 1.420 1.416 1.413 1.409 1.405 1.401 1.398 1.38411 1.390 1.387 1.383 1.379 1.376 1.372 1.369 1.365 1.362 1.35812 1.354 1.351 1.347 1.344 1.341 1.337 1.334 1.330 1.327 1.32313 1.320 1.317 1.313 1.310 1.307 1.303 1.300 1.297 1.294 1.29014 1.287 1.284 1.281 1.278 1.274 1.271 1.268 1.265 1.262 1.25915 1.256 1.253 1.249 1.246 1.243 1.240 1.237 1.234 1.231 1.22816 1.225 1.222 1.219 1.216 1.214 1.211 1.208 1.205 1.202 1.19917 1.196 1.193 1.191 1.188 1.185 1.182 1.179 1.177 1.174 1.17118 1.168 1.166 1.163 1.160 1.157 1.155 1.152 1.149 1.147 1.14419 1.141 1.139 1.136 1.134 1.131 1.128 1.126 1.123 1.121 1.11820 1.116 1.113 1.111 1.108 1.105 1.103 1.101 1.098 1.096 1.09321 1.091 1.088 1.086 1.083 1.081 1.079 1.076 1.074 1.071 1.06922 1.067 1.064 1.062 1.060 1.057 1.055 1.053 1.051 1.048 1.04623 1.044 1.041 1.039 1.037 1.035 1.032 1.030 1.028 1.026 1.02424 1.021 1.019 1.017 1.015 1.013 1.011 1.008 1.006 1.004 1.00225 1.000 0.998 0.996 0.994 0.992 0.990 0.987 0.985 0.983 0.98126 0.979 0.977 0.975 0.973 0.971 0.969 0.967 0.965 0.963 0.96127 0.959 0.957 0.955 0.953 0.952 0.950 0.948 0.946 0.944 0.94228 0.940 0.938 0.936 0.934 0.933 0.931 0.929 0.927 0.925 0.92329 0.921 0.920 0.918 0.916 0.914 0.912 0.911 0.909 0.907 0.90530 0.903 0.902 0.900 0.898 0.896 0.895 0.893 0.891 0.889 0.88831 0.886 0.884 0.883 0.881 0.879 0.877 0.876 0.874 0.872 0.87132 0.869 0.867 0.866 0.864 0.863 0.861 0.859 0.858 0.856 0.85433 0.853 0.851 0.850 0.848 0.846 0.845 0.843 0.842 0.840 0.83934 0.837 0.835 0.834 0.832 0.831 0.829 0.828 0.826 0.825 0.82335 0.822 0.820 0.819 0.817 0.816 0.814 0.813 0.811 0.810 0.808

44 Appendix

11.2 ConductivitystandardstableInternationalT [°C]

10 [µS/cm]

84 [µS/cm]

500 [µS/cm]

1413 [µS/cm]

12.88 [mS/cm]

SaturatedNaCl [mS/cm]

0 6.13 53.02 315.3 896 8.22 134.510 7.10 60.34 359.6 1020 9.33 177.915 7.95 67.61 402.9 1147 10.48 201.520 8.97 75.80 451.5 1278 11.67 226.025 10.00 84.00 500.0 1413 12.88 251.330 11.03 92.19 548.5 1552 14.12 277.435 12.14 100.92 602.5 1667 15.39 304.1ChineseT [°C]

146.5 [µS/cm]

1408 [µS/cm]

12.85 [mS/cm]

111.3 [mS/cm]

15 118.5 1141.4 10.455 92.1218 126.7 1220.0 11.163 97.8020 132.2 1273.7 11.644 101.7025 146.5 1408.3 12.852 111.3135 176.5 1687.6 15.353 131.10JapaneseT ( [°C]

1330.00 [µS/cm]

133.00 [µS/cm]

26.6 [µS/cm]

0 771.40 77.14 15.4285 911.05 91.11 18.22110 1050.70 105.07 21.01415 1190.35 119.04 23.80720 1330.00 133.00 26.625 1469.65 146.97 29.39330 1609.30 160.93 32.18635 1748.95 174.90 34.979

11.3 Examplesoftemperaturecoefficients(alpha-values)Substanceat25°C Concentration

[%]Temperaturecoefficientalpha [%/°C]

HCl 10 1.56KCl 10 1.88CH3COOH 10 1.69NaCl 10 2.14H2SO4 10 1.28HF 1.5 7.20

-coefficientsofconductivitystandardsforacalculationtoreferencetemperature25°CStandard Measurement

temp.:15°CMeasurementtemp.:20°C

Measurementtemp.:30°C

Measurementtemp.:35°C

84µS/cm 1.95 1.95 1.95 2.011413µS/cm 1.94 1.94 1.94 1.9912.88mS/cm 1.90 1.89 1.91 1.95

45Appendix

11.4 Practicalsalinityscale(UNESCO1978)ThesalinityiscalculatedaccordingtotheofficialdefinitionofUNESCO1978.Thereforethesalin-itySpsuofasampleinpsu(practicalsalinityunit)atstandardatmosphericpressureiscalculat-edasfollows:

a0=0.0080 b0=0.0005 k=0.00162a1=-0.1692 b1=-0.0056a2=25.3851 b2=-0.0066a3=14.0941 b3=-0.0375a4=-7.0261 b4=0.0636a5=2.7081 b5=-0.0144

(32.4356gKClper1000gofsolution)

11.5 ConductivitytoTDSconversionfactorsConductivity TDSKCl TDSNaClat25°C ppmvalue factor ppmvalue factor84µS/cm 40.38 0.5048 38.04 0.4755447µS/cm 225.6 0.5047 215.5 0.48221413µS/cm 744.7 0.527 702.1 0.49691500µS/cm 757.1 0.5047 737.1 0.49148974µS/cm 5101 0.5685 4487 0.500012.880µS/cm 7447 0.5782 7230 0.561315.000µS/cm 8759 0.5839 8532 0.568880mS/cm 52.168 0.6521 48.384 0.6048

11.6 USP/EPtablesConductivityrequirements(µS/cm)forUSP/EP(highlypurfiedwater)/EP(purfiedwater)Temperature [°C]

USP [µS/cm]

EP (highlypurfiedwater) [µS/cm]

EP (purfiedwater) [µS/cm]

0 0.6 0.6 2.45 0.8 0.8 -10 0.9 0.9 3.615 1.0 1.0 -20 1.1 1.1 4.325 1.3 1.3 5.130 1.4 1.4 5.435 1.5 1.5 -40 1.7 1.7 6.545 1.8 1.8 -50 1.9 1.9 7.1

46 Appendix

Temperature [°C]

USP [µS/cm]

EP (highlypurfiedwater) [µS/cm]

EP (purfiedwater) [µS/cm]

55 2.1 2.1 -60 2.2 2.2 8.165 2.42 2.42 -70 2.5 2.5 9.175 2.7 2.7 9.780 2.7 2.7 9.785 2.7 2.7 -90 2.7 2.7 9.795 2.9 2.9 -100 3.1 3.1 10.2

11.7 ConductivityashmethodsThemetercanmeasuretheconductivityash(%)accordingtothetwoICUMSAmethods:

11.7.1 1.Refinedsugar(28g/100gsolution)ICUMSAGS2/3-17Theformulathattheinstrumentusesis:

%(m/m)=0,0006x((C1/(1+0,026x(T-20)))–0,35x(C2/(1+0,026x(T-20)))xK)

Where,

C1=conductivityofthesugarsolutioninμS/cmwithcellconstant=1cm-1

C2=conductivityofthewaterusedinμS/cmtopreparethesugarsolutionwithcellconstant=1cm-1

T=temperaturein°Cbetween15°Cand25°C

K=cellconstant

11.7.2 Rawsugarormelasses(5g/100mLsolution)ICUMSAGS1/3/4/7/8-13Theformulathattheinstrumentusesis:

%(m/V)=0,0018x((C1/(1+0,023x(T-20))-C2/(1+0,023x(T-20)))xK)

Where,

C1=conductivityofthesugarsolutioninμS/cmwithcellconstant =1 cm-1

C2=conductivityofthewaterusedtopreparethesugarsolutioninμS/cmwithcellconstant=1cm-1

T=temperaturein°Cbetween15°Cand25°C

K=cellconstantoftheusedsensor

47Appendix