SevenCompact™ pH/Ion meter S220

Operating Instructions

Mode d‘emploi

Instrucciones de manejo

SevenCompact™

pH/Ion meter S220

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 164.4 Usingthesoftkeys 164.5 Selectingameasurementmode 174.6 Navigatingbetweenmenus 174.7 Navigatingwithinamenu 174.8 Usingthealphanumerickeypad 174.8.1 Alphanumericinput 174.8.2 EnteringIDs/PIN 184.8.3 Editingvaluesinatable 184.9 Calibration 194.9.1 Runningaone-pointpH/ioncalibration 194.9.2 Runningamulti-pointpH/ioncalibration 194.10 Automaticbufferrecognition 204.11 Samplemeasurements 204.12 Datatransfer 204.13 Temperaturecompensation 21

5 Setup 22

5.1 Menustructureofsetup 225.2 SampleID 225.3 UserID 225.4 Stirrer 235.5 DataTransferSettings 235.6 Systemsettings 245.7 Service 265.8 Instrumentself-test 27

6 Menusandsettings 28

6.1 MenustructureofpH/ion 286.2 SensorID/SN 286.3 Calibrationsettings 296.4 Measurementsettings 306.5 Endpointformats 32

Tableofcontents 3

6.6 TimedIntervalReadings 336.7 Temperaturesettings 336.8 Measurementlimits 33

7 Datamanagement 34

7.1 Menustructureofdatamenu 347.2 Measurementdata 347.3 Calibrationdata 357.4 ISMdata 36

8 Maintenance 38

8.1 Metermaintenance 388.2 Electrodemaintenance 388.3 Disposal 388.4 Errormessages 398.5 Errorlimits 41

9 Sensors,solutionsandaccessories 42

10 Specifications 44

11 Appendix 45

11.1 Buffertables 4511.1.1 Buffergroup1(ref.25°C)METTLERTOLEDOUS 4511.1.2 Buffergroup2(ref.25°C)METTLERTOLEDOEurope(defaultbuffer) 4511.1.3 Buffergroup3(ref.20°C)Merckstandardbuffers 4611.1.4 Buffergroup4(ref.25°C)DIN(19266) 4611.1.5 Buffergroup5(ref.25°C)DIN(19267) 4611.1.6 Buffergroup6(ref.25°C)JJG(Chinese) 4711.1.7 Buffergroup7(ref.25°C)TechnicalBuffer 4711.1.8 Buffergroup8(ref.25°C)JISZ8802(Japanese) 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 ConnectingasensorToconnectpHorIonsensors,disconnecttherubberplugfromthepHsocket.Connecttheelec-trodeandmakesurethattheplugsareproperlyinserted.Ifyouareusinganelectrodewithabuilt-intemperatureprobeoraseparatetemperatureprobe,connecttheotherleadtotheATCsocket.TwisttheRCA(Cinch)plugtoeasetheattachmentofthesensor.

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

d fc

b ja h g

e

a BNCsocketformV/pHsignalinput

b RCA(Cinch)socketfortemperaturesignalinput

c Referencesocketforreferenceelectrodes

d Digitalsocketfordigitalelectrodes

e RS232interface

f DCpowersupplysocket

g USBAinterface

h USBBinterface

i 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

20

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18

13 14 15 16

8

10

9

21

12

11

5 6 2 3 4 1 7

21

19

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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 Numberofdatasetsinmem-ory

12 UserID

13 Softkey

14 Softkey

15 Softkey

16 Softkey

17 SampleID

18 SensorID

19 pHelectrodeconditionicon

Slope:95-105%Offset:±(0-20)mVElectrodeisingoodcondition

Slope:94-90%Offset:±(20-35)mVElectrodeneedscleaning

Slope:89-85%Offset:±(>35)mVElectrodeisfaulty

20 ISM®sensorconnected

21 Stabilitycriterion

Strict Medium Fast

22 Warningmessages

23 Buffergroupsorstandards

15Operatingthemeter

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

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. pH

2. mV

3. rel.mV

4. ion

4.6 NavigatingbetweenmenusThemeterdisplayconsistsofameasurementframe,softkeys,areasforstatusiconsandunderly-ingmenuareas.

Toaccessthemenuareasandtonavigatebetweenthem,usevarioussoftkeys(see“Usingthesoftkeys”).

PressMenu.TheSetupmenuappearsandthepH/Iontabishighlighted.

Press tohighlighttheSetuptab,or Press tohighlightSensorID/SN. PressEXITtoreturntothemeasurementscreen.

4.7 NavigatingwithinamenuThisexampleisbasedontheSetupmenu,buttheprocedureappliestotheothermenusaswell.

PressMenu.

TheSetupmenuappearsandthepH/Iontabishighlighted.

Press asoftenasneededtonavigatetoamenuitem. PressSelecttomovedeeperinthemenuforthechosenoperation. Continuenavigatingwith , orSelectuntilthefinaldestinationisreachedwithin

themenu. PressMODE/EXITtogobacktothepreviousmenu.

—or— PressREADtoreturntothemeasurementscreendirectly.

4.8 Usingthealphanumerickeypad

4.8.1 AlphanumericinputThemeterhasascreenkeypadforenteringIDs,SNsandPINs.Bothnumbersandlettersareal-lowedfortheseentries.

WhenenteringaPIN,eachcharacterenteredwillbedisplayedas(*).

17Operatingthemeter

1 Press tomovelefttohighlightnumberorletter,use tomoveright,and tomovedownwards.

2 PressREADtoconfirmtheentry.

Thelinewherethepositionofalphanumericcharacterisbeingenteredblinks.

3 Toendandconfirmentry,usesoftkeystohighlightscreenkeyOK,andpressREADtosavetheID.—or—

4 Todeleteinformation,usesoftkeystohighlight andpressREADtodeletethepreviouslyenteredcharacter.—or—

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 CalibrationThemeterallowsyoutoperformpH/ioncalibrationswithupto5points.

Calibrationisonlypossibleinthefull-informationscreen.WhenstartingacalibrationbypressingtheCALkeywhiletheinstrumentdisplaystheclose-upscreen,itwillautomaticallyswitchtothefull-informationscreen.

4.9.1 Runningaone-pointpH/ioncalibration1 Placetheelectrodeinacalibrationbuffer/standardandpressCAL.

Cal1appearsonthedisplay

2 ThemeterendpointsaccordingtothepreselectedendpointmodeafterthesignalhasstabilizedorafterpressingREAD.

Therelevantbuffer/standardvalueisshownonthedisplay.

3 PressEndtoacceptthecalibration.

Thecalibrationresultisshownonthedisplay.

4 PressSavetosavetheresult.—or—

5 PressExittorejectthecalibrationandreturntosamplemeasurement.

Withtheone-pointcalibrationonlytheoffsetisadjusted.Ifthesensorwaspreviouslycalibrat-edwithamultipointcalibrationthepreviouslystoredslopewillremain.Otherwisethetheoreti-calslope(-59.16mV/pH)willbeused.

4.9.2 Runningamulti-pointpH/ioncalibrationpHandioncalibrationscanberunwiththismeterforupto5points.

1 Runthecalibrationasdescribedin“Runningaone-pointpH/ion”(steps1-2).

2 Rinsetheelectrodewithdeionizedwater.

3 Placetheelectrodeinthenextcalibrationbuffer.

4 PressCAL.

Cal2appearsonthedisplay.ThemeterendpointsaccordingtothepreselectedendpointmodeafterthesignalhasstabilizedorafterpressingREAD.Therelevantbuffervalueisshownonthedisplay.

5 Repeatthesteps2-4forallcalibrationbuffers.

6 PressEndtoendthecalibrationprocedure.

Alternatively,themeterendsthecalibrationautomaticallywhen5calibrationsareper-formed.Theoffsetvalueandslopeareshownonthedisplay.

7 Press toscrolldowntonextdataset

19Operatingthemeter

8 PressSavetokeepthecalibration.

9 PressEXITtorejectthecalibration.

4.10 AutomaticbufferrecognitionThemeterfeaturesautomaticpHbufferrecognitionforthepredefinedbuffergroups(see“Appen-dix”)andtheuser-definedbuffergroups.Thebufferswithinabuffergroupareautomaticallyrecog-nizedbythemeteranddisplayedduringcalibration.Thisfeatureallowsthecalibrationinanyorderwithinapredefinedoruser-definedpHbuffergroup.

4.11 Samplemeasurements PlacethesensorinthesampleandpressREADtostartameasurement.

• Thedisplayshowsthereadingsofthesample.• Theendpointformatblinks,indicatingameasurementisinprogress.

Assoonasthemeasurementisstableaccordingtotheselectedstabilitycriterion,theStabilityiconappears.

Ifthe“automaticendpoint”formatisselected,themeasurementstopsautomaticallyassoonastheStabilityiconappears.

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

4.12 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.

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

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

ThemeteracceptsbothNTC30kΩandpT1000temperaturesensors,withselectiontakingplaceeitherautomaticallyormanually(see“Menusandsettings:Temperaturesettings”).

InthepHandionmode,themetercalculatesthetemperature-adjustedelectrodeslopeusingthistemperatureandshowsthetemperature-compensatedpH/ionvalueinthemeasurementdisplay.

21Operatingthemeter

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.

22 Setup

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.

23Setup

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:pHprintoutGLP pHprintoutnormal pHprintoutshort

<pH>GLP24-Jul-0510:56AMBEER6.997pH0.5mV25.0°CATCAutoEPStrictINLAB413122222222Lastcal.:09-Jun-201010:56AMIvySignature:____________Outsidelimits

<pH>Normal24-Jul-0510:56AMBEER6.997pH0.5mV25.0°CATCAutoEPStrictINLAB413

<pH>0.5mV25.0°CATCAutoEPStrictINLAB413

5.6 SystemsettingsThesystemsettingsmenuisprotectedbyaPIN.Upondelivery,thePINissetto000000andisactivated.PleasechangethePINtopreventunauthorizedaccess.

24 Setup

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.

TheconceptofthetwoworkingmodesisaGLPfeaturethatensuresthatimportantsettingsandstoreddatacannotbedeletedcannotbeunintentionallychangedunderroutineworkingconditions.

Themeteronlyallowsthefollowingfunctionsintheroutinemode:

25Setup

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.

Afterthesoftwareupdatetheinstrumentisswitchedbacktofactorysettings.AllunsaveddatawillbelostandthePINwillbesetbackto“000000”.

IncasetheUSB-stickisremovedduringtheupdateprocessorthepoweradapterispluggedout,theinstrumentcannotbeswitchedonanymore.PleasecontactMETTLERTOLEDOserviceinthatcase.

26 Setup

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.

27Setup

6 Menusandsettings

6.1 MenustructureofpH/ion

1. SensorID/SN 4. EndpointFormats

2. CalibrationSettings 5. TimedIntervalReadings

1.BufferGroup/Standard 6. TemperatureSettings

2.CalibrationMode 1.SetMTCTemperature

2.CalibrationReminder 2.TemperatureUnit

3. MeasurementSettings 3.Temp.SensorRecognition

1.MeasurementResolution 7. MeasurementLimits

2.StabilityCriterion

3.IonMeasurementUnit

4.IonType

5.Rel.mVOffset

6.2 SensorID/SN

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

Themaximiumnumberofsensorsforbothsensortypes(pHandIon)is30.Whenthisnumberhasbeenreached,firstasensorhastobedeletedbeforeanewsensorcanbecreated(seethenoteattheendofthissectionhowtodeleteasensor).

IfanewsensorIDisentered,thetheoreticalcalibrationslopeandoffsetforthistypeofelectrodewillbeloaded.Thesensorhastobenewlycalibrated.

IfasensorIDisentered,whichisalreadyinthememoryofthemeterandhasbeencalibratedbe-fore,thespecificcalibrationdataforthissensorIDwillbeloaded.

WhenanewionsensorIDisentered,theiontypeforthissensorcanbeselected.Thisiontyperemainsassignedtothissensoruntilthesensorhasbeendeleted.

WhenconnectinganISM®sensortothemeter,themeterwill:

Automaticallyrecognizethesensorwhenit’sturnedon(alternatively,whenpressingREADorCAL)

LoadthestoredsensorID,sensorSNandsensortypeaswellasthelatestcalibrationdataofthissensor

Usethiscalibrationforthesubsequentmeasurements

ThesensorIDforISM®sensorscanbechanged.SensorSNandsensortype,however,areblockedformodification.

2.SelectSensorIDAlreadyenteredsensorIDscanbeselectedfromalist.

IfasensorIDisselected,whichisalreadyinthememoryofthemeterandhasbeencalibratedbe-fore,thespecificcalibrationdataforthissensorIDwillbeloaded.

28 Menusandsettings

YoucandeleteasensorIDwithitscalibrationsinthecalibrationdatamenu.

6.3 Calibrationsettings

Buffergroups/standards

PredefinedpHbuffergroupsOneofeightpredefinedbuffergroupscanbeselected:B1 1.68 4.01 7.00 10.01 (at25°C) MettlerUSB2 2.00 4.01 9.00 9.21 11.00 (at25°C) MettlerEuropeB3 2.00 4.00 7.00 9.00 12.00 (at20°C) StandardMerck

bufferB4 1.680 4.008 6.865 9.184 12.454 (at25°C) DIN19266B5 1.09 4.65 6.79 9.23 12.75 (at25°C) DIN19267B6 1.680 4.003 6.864 9.182 12.460 (at25°C) ChineseB7 2.00 4.01 7.00 10.00 (at25°C) TechnicalbufferB8 1.679 4.008 6.865 9.180 (at25°C) JISZ8802Temperaturetablesforthesebuffersareprogrammedinthemeterandcanbefoundinthe“Appen-dix”.

CustomizedpHbuffergroupAsetofuser-definedpHbufferswithupto5differenttemperaturesforeachbuffercanbecreated.ThetemperaturedifferencebetweenpHbuffersmustbeatleast5°CandthedifferencebetweenthepHvaluesmustbeatleast1.

Whenswitchingfrompredefinedbuffergrouptocustomizedbuffergroup,pressSaveinthetableevenifnovalueshavechanged.

IonstandardsConcentrationsforupto5standardswithonestandardtemperaturecanbedefined.Theioncon-centrationunitformeasurementsandcalibrationcanbedefined.Sixconcentrationunitsareavail-able:

mmol/L mol/L ppm mg/L % pX

1 Selectionconcentrationunit

2 EdittablebypressingRead

3 Press and toenterthevalueandpressREADtoconfirm.

4 NavigatewiththearrowstoSaveandpressREADtoconfirm

CalibrationmodeTwocalibrationmodesareoffered:

29Menusandsettings

Segmented:thecalibrationcurveismadeupoflinearsegmentsjoiningtheindividualcalibra-tionpoints.Ifhighaccuracyisrequired,thesegmentmethodisrecommended.

Linear:thecalibrationcurveisdeterminedusinglinearregression.Thismethodisrecom-mendedforsampleswithwidelyvaryingvalues.

ThesesettingsappliestobothpHandIoncalibration.

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

PressREADtosavetheintervalandanotherscreenappearstoselectcalibrationexpirationdate.

Fourdifferenttimespanscanbeprogrammed.Inallfourcases,awarningmessageappearsthattheelectrodeshouldbecalibrated.

ImmediatelyThemeterisimmediatelyblockedformeasurementwhenthepredefinedintervalhaselapsed.

Reminder+1hThemeterisblockedformeasurement1hourafterthepredefinedintervalhaselapsed.

Reminder+2hThemeterisblockedformeasurement2hoursafterthepredefinedintervalhaselapsed.

ContinueReadingTheusercancontinuemeasuringwhenthepredefinedintervalhaselapsed.

6.4 Measurementsettings

MeasurementResolutionTheresolutionforpHandmVneedstobesetforthedisplay.Upto3decimalplacescanbecho-sendependingontheunitofmeasurement(seetablebelow).

Ondisplay Description Option

X.XXX threedecimalplaces pH

X.XX twodecimalplaces pH

X.X onedecimalplace pH,mV

X nodecimalplaces mV

Intheionmode,themeasurementresolutiondependsontheconcentrationandtheunitofthemeasuredion.

StabilityCriterionTheStabilityiconappearsaccordingtothefollowingstabilitycriteria:

-StabilitycriteriaforpHandmVmeasurement

Strict

Themeasuredsignalshouldnotchangebymorethan0.03mVin8secondsorbymorethan0.1mVin30seconds.

Medium

30 Menusandsettings

Themeasuredsignalshouldnotchangebymorethan0.1mVin6seconds.

Fast


-Stabilitycriterionforionmeasurement

Strict

Themeasuredsignalshouldnotchangebymorethan0.03mVin12secondsorbymorethan0.08mVin26seconds.

Medium


Fast


IonMeasurementUnitsTheionconcentrationunitformeasurementsandcalibrationcanbeselectedbetweenthefollowingsixunits:mmol/L,mol/L,ppm,mg/L,%,pX.

Insomecases,changingmeasurementunitsrequirestheusertofirstrecalibratebeforestartingameasurement,otherwiseanerrormessagewillappear.Theunitsofmeasurementaredividedintwogroups:1.mmol/L,mol/LandpX,and2.ppm,mg/L,%.Changingwithinagroupdoesnotrequirecalibration,butchangingbetweenthetwogroupsdoes.

IonTypeWhenusinganionsensortowhichpreviouslyasensorIDhasbeenassigned,theiontypethathasbeenassignedtothissensorIDisautomaticallyused.

However,incaseonewouldliketomeasurewithoutasensorID,itisimportanttoassignthecor-rectiontype.Thisisbecausethetheoreticalslopedependsonthechargeoftheion(seebelow)

Eightspecificandfourgeneraliontypesareavailable:

F-(fluoride),Cl-(chloride),CN-(cyanide),NO3-(nitrate),Na+(sodium),K+(potassium),Ca2+(Calcium),Cu2+(cuprous),Ion-,Ion+,Ion2-andIon2+.

Dependingonthetypeofelectrodethetheoreticalslopediffersduetothechargeoftheion.Theflu-orideelectrodehase.g.atheoreticalslopeof+59.16mV/pXwhereasthetheoreticalslopeofacalciumelectrodeis-29.58mV/pX.ThistheoreticalvalueisloadedforanewenteredsensorIDuntilthesensoriscalibrated.

Rel.mVOffsetIntherel.mVmodetheoffsetvalueissubtractedfromthemeasuredvalue.EitheranoffsetvaluecanbeenteredoritcanbedeterminebymeasuringthemVofareferencesample.

Offsetvalue EnteranoffsetvalueinmVbetween-1999.9and+1999.9mV.

31Menusandsettings

Testareferencesample1 Placeelectrodeintothereferencesample.

2 PressStarttobeginthereferencemeasurementandwaituntilthemeasurementdisplayfreezes.—or—

3 PressREADtomanuallyendthemeasurement.

4 PressSavetoenterthemeasuredmVvalueasoffsetintothemeter.

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.

32 Menusandsettings

1Theactualendpointformat(lastcolumn)andnotthepreselectedisstoredwiththedata.

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.

TheinstrumentworkswithNTC30kΩandPt1000temperaturesensors.Youcanselectbe-tweenautomaticrecognitionormanualselectionofthetemperaturesensortype.Fortemper-aturesbelow100°CtheinstrumentcanreliablydistinguishbetweenNTC30kΩandPt1000.Athighertemperatures,however,itisnecessarytosetthetypeoftemperaturesensormanual-lytoavoidmistakes.

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

33Menusandsettings

7 Datamanagement

7.1 Menustructureofdatamenu

1. Measurementdata

1.1 Review

1.2 Transfer

1.3 Delete

1.4 ExporttoUSB-stick

2. Calibrationdata

2.1 pH

2.1.1 Review

2.1.2 Transfer

2.1.3 Delete

2.1.4 ExporttoUSB-stick

2.2 Ion

2.2.1 Review

2.2.2 Transfer

2.2.3 Delete

2.2.4 ExporttoUSB-stick

3. ISMDaten

3.1 InitialCalibrationData

3.2 CalibrationHistory

3.3 MaximumTemperature

3.4 ResetISM

7.2 Measurementdata

Review

AllAllstoredmeasurementdatacanbereviewed;themostrecentdatasavedappearsonthedisplay.

PressTransfertosendthemeasurementdata(currentsingleset)totheprinterorPC.

PartialThemeasurementdatacanbefilteredaccordingto3criteria.

Memorynumber(fromMXXXXtoMXXXX) SampleID Measurementmode

Memorynumber1 EnterthememorynumbersofthedataandpressSelect.

Themeasurementdataisdisplayed.

2 Scrollthroughthemeasurementdatatoreviewallmeasurementsbetweenthetwomemorynumbers.

34 Datamanagement

3 PressTransfertosendthemeasurementdata(currentsingleset)totheprinterorPC.

SampleID1 EnterthesampleIDandpressOK.

ThemeterfindsallstoredmeasurementswiththissampleID.

2 ScrollthroughthemeasurementdatatoreviewallmeasurementswiththeenteredsampleID.


Measurementmode1 Selectameasurementmodefromlist.Themeterfindsallstoredmeasurementsoftheselect-

edmeasurementmode.

2 Scrollthroughthemeasurementdataoftheselectedmeasurementmode.


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.

35Datamanagement

Transfer1 PressSelect.

AlistofcalibratedsensorIDsappears.


ThecalibrationdataoftheselectedsensorIDistransferredtoaprinterorPC.

Delete1 PressSelect.

AlistofsensorIDsappears.


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

4 PressExittocancel.

Afterdeletion,thesensorIDdisappearsfromthelistinthesensorIDmenu.

AnactivesensorIDcannotbedeleted. ThismenuisprotectedbyadeletionPINcode.Upondelivery,thePINcodeissetto000000.

ChangethePINcodetopreventunauthorizedaccess.

ExporttoUSB-stickStoredcalibrationdatapersensorIDcanbetransferredtoaUSB-stick.

1 PressSelect.


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.

36 Datamanagement

InitialcalibrationdataWhenanISM®sensorisconnected,theinitialcalibrationdatainthesensorcanbereviewedortransferred.Thefollowingdataisincluded:

Responsetime Temperaturetolerance Membraneresistance Slope(atpH7)andoffset Type(andname)ofelectrode(forexample,InLabExpertProISM®) Serialnumber(SN)andordering(ME)number Productiondate

CalibrationhistoryThelast5calibrationsdatastoredinISM®sensorincludingcurrentcalibrationcanbereviewedortransferred.

MaximumtemperatureThemaximumtemperaturethattheISM®sensorhasbeenexposedtoduringmeasurementismon-itoredautomaticallyandcanbereviewedfortheevaluationoftheelectrodelifetime.

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

37Datamanagement

8 Maintenance

8.1 MetermaintenanceNeverunscrewthetwohalvesofthehousing!

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

Anyspillageshouldbewipedoffimmediately.

8.2 ElectrodemaintenanceMakesurethepHelectrodeisalwayskeptfilledwiththeappropriatefillingsolution.

Formaximumaccuracy,anyfillingsolutionthatmayhave“crept”andencrustedtheoutsideoftheelectrodeshouldberemovedwithdeionizedwater.

Alwaysstoretheelectrodeaccordingtothemanufacturer’sinstructionsanddonotallowittodryout.

Iftheelectrodeslopefallsrapidly,oriftheresponsebecomessluggish,thefollowingproceduresmayhelp.Tryoneofthefollowing,dependingonyoursample.Problem Action

Fatoroilbuild-up Degreasethemembranewithcottonwoolsoakedineitheracetoneorasoapsolution.

pHsensormembranehasdriedout Soakthetipoftheelectrodeovernightin0.1MHCl

Proteinbuild-upinthediaphragmofapHsen-sor

RemovedepositsbysoakingtheelectrodeinanHCl/pepsinsolution.

SilversulfidecontaminationofpHsensor Removedepositsbysoakingelectrodeinathioureasolution.

Runanewcalibrationaftertreatment.

NoteCleaningandfillingsolutionsshouldbehandledwiththesamecareasthatgiventotoxicorcorro-sivesubstances.

8.3 Disposal

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

Ifyouhaveanyquestions,pleasecontacttheresponsibleauthorityorthedistributorfromwhichyoupurchasedthisinstrument.

Shouldthisinstrumentbepassedontootherparties(forprivateorprofes-sionaluse),thecontentofthisregulationmustalsoberelated.

Thankyouforyourcontributiontoenvironmentalprotection.

38 Maintenance

8.4 ErrormessagesMessage DescriptionandResolution

pH/mV/ion/temperatureexceedsmax.limitpH/mV/ion/temperaturebelowmin.limit

Memoryisfull

Pleasecalibrateelectrode

Activesensorcannotbedeleted

Wrongbuffer

SlopeoutofrangeOffsetoutofrange

Measurementlimitsareactivatedinthemenusettingsandmeasuredvalueisoutsidetheselimits.

Checkthesample. Checksampletemperature. MakesurethatthepHelectrodewettingcaphas

beenremovedandthattheelectrodeisproperlycon-nectedandplacedinthesamplesolution.

Max.1000measurementdatacanbestoredinthememory.

Deleteallorpartialdatainthememory,otherwiseyouwillnotbeabletostorenewmeasurementdata.

Calibrationreminderhasbeenswitchedoninthemenusettingsandlastcalibrationhasexpired.

Calibratetheelectrode.

DeletingthecalibrationdataoftheselectedsensorIDisnotpossible,becauseitiscurrentlytheactivesensorIDinthemetershownonthedisplay.

EnternewsensorIDinthemenusettings. SelectanothersensorIDfromthelistinthemenu

settings.

Metercannotrecognizethebufferorstandard/bufferhasbeenusedtwiceforcalibration/twobuffersdifferlessthan60mV.

Makesurethatyouhavethecorrectbufferandthatitisfresh.

Makesurethatthebufferhasnotbeenusedmorethanonceduringthecalibration.

Thecalibrationresultisoutsidethefollowinglimits:Slope<85%or>110%,Offset<-60mVor>+60mV.

Makesurethatyouhavethecorrectbufferandthatitisfresh.

CheckmVsignalofelectrode,cleanorreplacetheelectrode.

Standardtemp.outofrange

Buffertemp.outofrange

TheATCmeasuredtemperatureisoutofpHcalibrationbufferrange:5…50°C.

Keepthebuffer/standardtemperaturewithintherange.

Changethetemperaturesetting.

39Maintenance

Message DescriptionandResolution

Temperaturediffersfromsetting

ISM®sensorcommunicationerror DatahasnotbeentransferredcorrectlybetweenISM®sensorandmeter.ReconnecttheISM®sensorandtryagain.

Self-testfailure

Wrongsettings

Outofrange

Wrongpassword

Passwordsdonotmatch

Programmemoryerror

ATCmeasuredtemperaturediffersbymorethan0.5°Cfromtheuser-definedvalue/temperaturerange.

Keepthebuffer/standardtemperaturewithintherange.

Changethetemperaturesetting.

Self-testhasnotbeencompletedwithin2minutesorme-terisdefective.

Restartself-testandfinishwithin2minutes. ContactMETTLERTOLEDOserviceifproblemper-

sists.

Enteredvaluediffersbylessthan1pHunit/5°Cfromoth-erpresetvalues.

Enterahigher/lowervalueinordertogetabiggerdifference.

Eitherenteredvalueisoutofrange.

Enteravaluewhichiswithintherangeshownondisplay.

or

Measuredvalueoutofrange.

Makesuretheelectrodewettingcaphasbeenre-movedandthattheelectrodeisproperlyconnectedandplacedinthesamplesolution.

Ifnoelectrodeisconnected,puttheshortingclipinthesocket.

TheenteredPINisnotcorrect.

Re-enterthePIN. Resettofactorysettings,alldataandsettingswill

belost.

TheconfirmationPINdoesnotmatchwiththeenteredPIN.

ReenterPIN.

Meterrecognizesinternalerrorduringstart-up.

Switchthemeteroffandbackon. ContactMETTLERTOLEDOserviceiftheproblemper-

sists.

40 Maintenance

Message DescriptionandResolution

Datamemoryerror

Nomatchingdatafoundinmemory

SensorIDalreadyexists,previousSNwillbeoverwritten

Updatefailed

Exportfailed

Thedatacouldnotbestoredintomemory.

Switchthemeteroffandbackon. ContactMETTLERTOLEDOserviceiftheproblemper-

sists.

Theenteredfiltercriteriondoesnotexist.

Enteranewfiltercriterion.

TwosensorswiththesameIDbutdifferentSNarenotal-lowedinthemeter.IfadifferentSNhasbeenenteredforthissensorIDpreviously,theoldSNwillbeoverwritten.

EnteradifferentSensorIDinordertokeeptheprevi-ousIDandSN.

Thesoftwareupdateprocessfailed.Thiscouldbeduetothefollowingreasons:

TheUSBstickisnotconnectedoritisdisconnectedduringtheupdateprocess

Theupdatesoftwareisnotinthecorrectfolder

Theexportingprocessfailed.Thiscouldbeduetothefol-lowingreasons:

TheUSBstickisnotconnectedoritisdisconnectedduringtheexportingprocess

TheUSBstickisfull

8.5 ErrorlimitsMessage Rangenotaccepted

Outofrange,determineagain pH <-2.000or>20.000mV <-2000.0or>2000.0

Buffer/standardtemp.outofrange T(pH) <5or>50°COffsetoutofrange |Eref1-Eb|>60mVSlopeoutofrange Slope<85%or>110%Wrongbuffer I∆Eref1I<10mVInvalidpHforuser-definedbuffer I∆pHI<1pHATCmeasuredtemperatureisdifferenttotheuser-definedvalue

|T(ATC)T(buffer)|>1°C

41Maintenance

9 Sensors,solutionsandaccessoriesParts OrderNo.

ISM®sensorswithmulti-pinheadInLab®MicroProISM,3-in-1pHsensor,glassshaft,5mmshaftdiameter,ATC,refillable

51344163

InLab®PowerProISM,3-in-1pHsensor,glassshaft,ATC,pressurizedSteadyForce™referencesystem

51344112

InLab®PureProISM,3-in-1pHsensor,glassshaft,immovableglasssleeve,ATC,refillable

51344172

InLab®RoutineProISM,3-in-1pHsensor,glassshaft,ATC,refillable 51344055InLab®ScienceProISM,3-in-1pHsensor,glassshaft,movableglasssleeve,ATC,refillable

51344072

InLab®SolidsProISM,3-in-1pHsensor,glassshaft,openjunction,sharpmembrane,ATC

51344155

ISM®cable-2m 51344291ISM®cable-5m 51344292

Parts OrderNo.

SolutionspH2.00buffersolution,250mL 51350002pH2.00buffersolution,6x250mL 51350016pH4.01buffersachets,30x20mL 51302069pH4.01buffersolution,250mL 51350004pH4.01buffersolution,6x250mL 51350018pH7.00buffersachets,30x20mL 51302047pH7.00buffersolution,250mL 51350006pH7.00buffersolution,6x250mL 51350020pH9.21buffersachets,30x20mL 51302070pH9.21buffersolution,250mL 51350008pH9.21buffersolution,6x250mL 51350022pH10.01buffersachets,30x20mL 51302079pH10.01buffersolution,250mL 51350010pH10.01buffersolution,6x250mL 51350024pH11.00buffersolution,250mL 51350012pH11.00buffersolution,6x250mL 51350026RainbowI(3x10sachets20mL4.01/7.00/9.21) 51302068RainbowII(3x10sachets20mL4.01/7.00/10.01) 51302080HCl/Pepsinsolution(removesproteincontamination) 51350100ReactivationsolutionforpHelectrodes 51350104Thioureasolution(removessilversulfidecontamination) 51350102

Parts OrderNo.

CommunicationRS-P25printer 11124300RS-P26printer 11124303RS-P28printer 11124304Barcodereader 21901297USBCableforBarcodereader 21901309

42 Sensors,solutionsandaccessories

Parts OrderNo.

LabX®directpHPCsoftware 51302876

Parts OrderNo.

GuidesGuidetoionselectivemeasurement 51300075GuidetopHmeasurement 51300047

43Sensors,solutionsandaccessories

10 SpecificationsS220pHmeterMeasurementrange pH -2.000…20.000

mV -2000.0…2000.0mVpHATC -5…130°CpHMTC -30…130°CIon

Resolution pH 0.1/0.01/0.001mV 1/0.1pHTemperature 0.1°CIon 3or4digits

LimitsoferrorpH ±0.002pH±0.2mV±0.1°C

Limitsoferrorion ±0.5%(thislimitonlyappliesformeter)

pHcalibration Upto5pointsIsopotentialpoint pH7.00pHCalibrationbuffer 7predefinedgroups 1user-definedgroupof5buf-

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

890gDisplay TFTpHinput BNC,

impedance>3*10e+12Ω

Temperatureinput RCA(Cinch),NTC30kΩ,Pt1000

Digitalsensorinput Mini-LTWAmbientconditions Temperature 5…40°C

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

Materials Housing ABS/PCreinforcedWindow Polymethylmethacrylate

(PMMA)Keypad Membranekeypad:Polyethe-

leneterephtalate(PET)

0.000…1000.0%

0.000...10000ppm

1.00E-9...9.99E+9mg/L

1.00E-9...9.99E+9mmol/L

1.00E-9...9.99E+9mol/L

44 Specifications

11 Appendix

11.1 BuffertablesThemetersautomaticallycorrectforthetemperaturedependenceofthepHbufferusingthevaluesgiveninthetablesbelow.

11.1.1 Buffergroup1(ref.25°C)METTLERTOLEDOUS

5 7.09 4.00 10.25 1.67

10 7.06 4.00 10.18 1.67

15 7.04 4.00 10.12 1.67

20 7.02 4.00 10.06 1.68

25 7.00 4.00 10.01 1.68

30 6.99 4.01 9.97 1.68

35 6.98 4.02 9.93 1.69

40 6.97 4.03 9.89 1.69

45 6.97 4.04 9.86 1.70

50 6.97 4.06 9.83 1.71

11.1.2 Buffergroup2(ref.25°C)METTLERTOLEDOEurope(defaultbuffer)

5 7.09 4.01 9.45 2.02 11.72

10 7.06 4.00 9.38 2.01 11.54

15 7.04 4.00 9.32 2.00 11.36

20 7.02 4.00 9.26 2.00 11.18

25 7.00 4.01 9.21 2.00 11.00

30 6.99 4.01 9.16 1.99 10.82

35 6.98 4.02 9.11 1.99 10.64

40 6.97 4.03 9.06 1.98 10.46

45 6.97 4.04 9.03 1.98 10.28

50 6.97 4.06 8.99 1.98 10.10

45Appendix

11.1.3 Buffergroup3(ref.20°C)Merckstandardbuffers

5 7.07 4.04 9.16 2.01 12.41

10 7.05 4.02 9.11 2.01 12.26

15 7.02 4.01 9.05 2.00 12.10

20 7.00 4.00 9.00 2.00 12.00

25 6.98 4.01 8.95 2.00 11.88

30 6.98 4.01 8.91 2.00 11.72

35 6.96 4.01 8.88 2.00 11.67

40 6.95 4.01 8.85 2.00 11.54

45 6.95 4.01 8.82 2.00 11.44

50 6.95 4.00 8.79 2.00 11.33

11.1.4 Buffergroup4(ref.25°C)DIN(19266)

5 6.95 4.00 9.40 1.67

10 6.92 4.00 9.33 1.67

15 6.90 4.00 9.28 1.67

20 6.88 4.00 9.22 1.68

25 6.86 4.01 9.18 1.68

30 6.85 4.02 9.14 1.68

35 6.84 4.02 9.10 1.69

40 6.84 4.04 9.07 1.69

45 6.83 4.05 9.04 1.70

50 6.83 4.06 9.01 1.71

11.1.5 Buffergroup5(ref.25°C)DIN(19267)

5 1.08 4.67 6.87 9.43 13.63

10 1.09 4.67 6.84 9.37 13.37

15 1.09 4.66 6.82 9.32 13.16

20 1.09 4.66 6.80 9.27 12.96

25 1.09 4.65 6.79 9.23 12.75

30 1.10 4.65 6.78 9.18 12.61

35 1.10 4.65 6.77 9.13 12.45

40 1.10 4.66 6.76 9.09 12.29

45 1.10 4.67 6.76 9.04 12.09

50 1.11 4.68 6.76 9.00 11.98

46 Appendix

11.1.6 Buffergroup6(ref.25°C)JJG(Chinese)

5 1.669 3.999 6.949 9.391 13.210

10 1.671 3.996 6.921 9.330 13.011

15 1.673 3.996 6.898 9.276 12.820

20 1.676 3.998 6.879 9.226 12.637

25 1.680 4.003 6.864 9.182 12.460

30 1.684 4.010 6.852 9.142 12.292

35 1.688 4.019 6.844 9.105 12.130

40 1.694 4.029 6.838 9.072 11.975

45 1.700 4.042 6.834 9.042 11.828

50 1.706 4.055 6.833 9.015 11.697

11.1.7 Buffergroup7(ref.25°C)TechnicalBuffer

5 2.02 4.01 7.09 10.65

10 2.01 4.00 7.06 10.39

15 2.00 4.00 7.04 10.26

20 2.00 4.00 7.02 10.13

25 2.00 4.01 7.00 10.00

30 1.99 4.02 6.99 9.87

35 1.99 4.02 6.98 9.74

40 1.98 4.03 6.97 9.61

45 1.98 4.04 6.97 9.48

50 1.98 4.06 6.97 9.35

11.1.8 Buffergroup8(ref.25°C)JISZ8802(Japanese)

5 1.668 3.999 6.951 9.395

10 1.670 3.9998 6.923 9.332

15 1.672 3.999 6.900 9.276

20 1.675 4.002 6.881 9.225

25 1.679 4.008 6.865 9.180

30 1.683 4.015 6.853 9.139

35 1.688 4.024 6.844 9.102

40 1.694 4.035 6.838 9.068

45 1.700 4.047 6.834 9.038

50 1.704 4.060 6.833 9.011

47Appendix

SevenCompact™ pH/Ion meter S220

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