s230 conductivity meter - hogentoglers230 conductivity meter. english français español. table of...
TRANSCRIPT
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
21
19
20
23
17
18
8
10
9
12
11
13 14 15 16
5 6 2 3 4 1 7
21
19
20
23
22
9
8
10
9
12
11
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