Thermo Scientific Orion Versa Star VSTAR-PH User manual

Thermo Scientific Orion Versa star™
pH with LogR®Temperature Module
Reference Guide

Ross and the COIL trade dress are trademarks of Thermo Fisher Scientific, Inc. and
its subsidiaries.
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Auto-Test, AutoTration, CISA, digital LogR, DuraProbe, EZ Startup, ISEasy,
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and its subsidiaries.
© 2012 Thermo Fisher Scientific Inc. All rights reserved. All trademarks are the property of
Thermo Fisher Scientific, Inc. and its subsidiaries.
The specifications, descriptions, drawings, ordering information and part numbers within this
document are subject to change without notice.
This publication supersedes all previous publications on this subject.

Thermo Scientific Orion Versa star™ pH with LogR Temperature Module
Table of Contents
Chapter 1 Introduction ..........................................................1
Chapter 2 Module Overview .....................................................3
Module Connections and Inputs ........................................ 3
Module Maintenance.................................................. 3
Display Information from Module ....................................... 4
Chapter 3 Setup Menus .........................................................5
Setup Menus for Primary Measurements ................................ 5
Read Type Information..............................6
Isopotential Value..................................6
Linear Regression Information ........................6
Selecting the Temperature Reading and Compensation Setting ............ 7
Chapter 4 pH, RmV and ORP Calibration ...........................................9
pH Calibration ........................................................ 9
RmV Calibration....................................................... 9
ORP Calibration...................................................... 10
Chapter 5 Temperature Calibration ..............................................11
LogR Temperature Calibration Information.............................. 11
LogR Calibration Technique ........................................... 11
ATC Probe Calibration Technique ...................................... 12
Chapter 6 Measurement........................................................13
Chapter 7 Methods ............................................................15
Chapter 8 Data Storage and Review .............................................17
Data Storage Settings ................................................ 17
Measurement Read Type...........................17
Datalog, Computer and Printer Export Settings ..........17
Datalog Review ...................................................... 17
Calibration Review................................................... 18
Chapter 9 Customer Services ...................................................19
Troubleshooting Guide................................................ 19
Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Warranty and Registration ............................................ 19
WEEE Compliance ................................................... 19
Declaration of Conformity ............................................. 20
pH with LogR Temperature Module Specifications....................... 21
Ordering Information ................................................. 22

Appendix A Advanced Features
Automatic pH Buffer Recognition Feature............................... 27
Testing a pH Electrode for Automatic Buffer Recognition ..27
Electrode Condition Icon ............................................. 28
Multipoint Calibration Curve Feature .................................. 28
Appendix B About LogR Technology
LogR Temperature Measurements ..................................... 29
LogR Temperature Accuracy Tables ................................... 29
Appendix C Advanced Orion Versa star Meter and pH with LogR Module's
Electrode Diagnostics
Electrode Trouble-Shooting Using LogR Technology ..................... 31
Viewing Electrode Resistance......................................... 31
Out-Of-The-Box Electrode Check ...................................... 31
Initial Electrode Check ............................................... 32
Periodic Electrode Testing ............................................ 32
Electrode Diagnostics Log ............................................ 33

1
Thermo Scientific Orion Versa star pH with LogR Temperature Module
Chapter 1 Introduction
Thank you for your purchase of the Thermo Scientific Orion Versa star™ pH with LogR Temperature Module.
This module is for use with the Thermo Scientific Orion Versa star Advanced Electrochemistry Benchtop Meter.
Some key features of this module include:
• pHrangefrom-2to20withresolutionoptionsof0.001,0.01and0.1
• mVandRmVrangesfrom±2000mV
• Automaticandmanualdataloggingoptions
• Upto6-pointpHcalibrationwithautomaticrecognitionforUSA/NISTandDINbuffers
• Theabilitytoxcalibrationerrorswithoutacompleterecalibrationthankstocalibrationediting
• Temperature-compensatedresultsdirectlyfromthepHbulbwithpatentedLogRtechnology
• ThemostadvancedelectrodediagnosticsinformationthroughtheuseoftheLogRtechnology
Please read this reference guide thoroughly. Any use outside of these instructions may invalidate your warranty and
cause permanent damage to the meter.

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3
Thermo Scientific Orion Versa star pH with LogR Temperature Module
Chapter 2 Module Overview
Toconnectthemodulestothemeterandforspecicinformationregardingthemeteroutputs,pleaseseethe
Orion Versa starReferenceGuide.TheReferenceGuideisontheCDincludedwiththemeterandalsoavailable
atwww.thermoscientic.com/water.
Module Connections and Inputs
1. PreparethepHTriode®orelectrode/ATCprobeforuseasinstructedinuserguide.
2. PlaceelectrodeandATCandOrionStarstirrerprobe(cat.no.096019,optional)inmeter’s
electrode arm.
3. AttachtheBNCandATCconnectorstothemetermodule.Ifusingthestirrerprobe,attachprobeto
themeterandassigntheprobetothechannelinthesetupmenuforinstrumentsettings.
4. Setupworkareawithcalibrationbuffers,rinsewater,sample&othersupplies.
5. Connectthemeterfordatacollection(Hyperterminal,LIMS,StarPrinter,etc),ifdesired.
6. PowertheOrionVersa starmeter,OrionStarstirrer,anddatacollectiondevice(s).
Module Maintenance
Forroutinemaintenance,dustandwipethemodulewithadampcloth.Ifnecessary,warmwaterormildwater-based
detergentcanbeused.Maintenancecanbeperformedonadaily,weeklyormonthlybasis,asrequiredbyoperating
environment.Immediatelyremoveanyspilledsubstanceusingthepropercleaningprocedureforthatspilltype.
pH with LogR Temperature Module
8pinmini-DINforATC
(forusewhencalibratingLogRtemperatureinput
withATCprobeorusingATCtemperatureinput)
BNCconnectionwithshortingcap
Reference pin socket

4Thermo Scientific Orion Versa star pH with LogR Temperature Module
Display Information from Module
Example Single Channel Display Screens for ORP, RmV & mV Modes
ORP screen RmVscreen mVscreen
ExamplepHMeasurementScreen–SingleChannel
Dateandtime
Sample
temperature
Primary reading
Corresponding
mVreading
Electrode condition
and slope
Calibrationinformation
with electrode slope
fromlastcalibration
andbufferpoints
Theinformationonthedisplaycanbecustomized.
Enter the setup menu to make changes.
1.PressSetup.
2.UsethearrowkeystohighlightInst.Settings,
press (f3/select) key.
3.UsethearrowkeytohighlightDisplayView.
Press (f3/select) key.
4. Follow the onscreen prompts to choose what you
would like to see on the measurement screen.
pHbulbresistance
information when
LogR temperature
compensation is used
(appearsautomatically)

5
Thermo Scientific Orion Versa star pH with LogR Temperature Module
Chapter 3 Setup Menus
Setup Menus for Primary Measurements
1. SelectthepHchannelbypressingthechannelkey,thenpressf3 (Setup).
2. Scrollwiththe(>) key,highlighttheappropriatepHmodule,pressf3 (Select).
3. ArrowthecursortoMode,pressf3 (Select),arrowtopH,press f3 (Select).
4. Select the options.
5. Press the f1 (Back)buttontostepbacktothemainscreen.
ORP, RmV and mV Setup Menus
(Default values are in bold in the table below)
ElectrodeID Input
SampleID Off,Manual,AutoIncrement
Resolution 1.0,0.1
Stability Smart,Fast,Medium,Slow
Averaging Off,Automatic Smart
Read Type AutoRead,Timed,Single-Shot,Continuous
Alarm** Limit,CalDue*,SetPoint
Note:Differentmodes(mV,RmV,ORP)inthepHmodulehavesetup
optionsrelevanttothatmode.*OnlyforORPandRmVmodes.
**Limitandsetpointalarmdefaultsetto‘off’.
Calduealarmsetto12hours.
pH Setup Menu
(Default values are in bold in the table below)
ElectrodeID Input
SampleID Off,Manual,AutoIncrement
Resolution 0.1,0.01,0.001
Stability Smart,Fast,Medium,Slow
Averaging Off,Automatic Smart
Read Type AutoRead,Timed,Single-Shot,Continuous
Buffer Group USA,DIN,Custom
IsopotentialValue Off,On 7.000
Linear Regression Off,On
Alarm** Limit,CalDue,SetPoint
**Limitandsetpointalarmdefaultsetto‘off’.
Calduealarmsetto12hours.

6Thermo Scientific Orion Versa star pH with LogR Temperature Module
Read Type Information
Therearethreemainreadtypesavailableasshowninthesetupmenus.
• Auto-Read – Themeterwilldisplaythemeasurementasitstabilizesandlockandholdthe
measurementwhenitisstable.(TheARiconwilllockonthescreen.)Oncethemeasurementislocked,
themeterwillautomaticallyexportthemeasurementtothedatalog,ifthedatalogisenabledin
thesetupmenu,andtoaprinterorcomputer,ifaprinterorcomputerisconnectedtothemeterand
enabledinthesetupmenu.Totakeanewmeasurement,pressmeasure (esc)/1.
• Timed – The meter will read and display a measurement at the set time interval that is programmed
bytheoperator.Atthesettimeinterval,themeterwillautomaticallyexportthemeasurementto
thedatalog,ifthedatalogisenabledinthesetupmenu,andtoaprinterorcomputer,ifaprinteror
computerisconnectedtothemeterandenabledinthesetupmenu.Ifselected,enterthetimeinterval
value in a hours:minutes:seconds format using the numeric keypad and press f3 (select) key.
• Single Shot –Asingletimedmeasurementwillbetakenafterthesettimehasexpired.Themeter
willapplythesamesavingandexportingdataconditionsaswiththesettimeintervaltorecord
andexportdata,butlockafteronetimedreadinghasexpired.Pressmeasure (esc)/1 to reset the
countdown clock and take a new reading.
• Continuous – The meter will continuously measure and update the display. This read type is useful
whenperforminganexperimentthatrequirescontinuousmeasurementstobetaken.Pressthe
log/print/0keytoexportthemeasurementtothedatalog,ifthedatalogisenabledinthesetup
menu,andtoaprinterorcomputer,ifaprinterorcomputerisconnectedtothemeterandenabledin
the setup.
Isopotential Value
Theslopeofallelectrodeschangeswithtemperature,basedontheNerstequation.Theslopecurvesatthedifferent
temperaturesintersectattheisopotentialpoint,whichistheconcentrationatwhichthepotentialoftheelectrodedoes
notvarywithtemperature.ForglasspHelectrodes,thisvalueis7.00.
Linear Regression Information
Thedefaultisoffwhichusesthetraditional,segmentedapproach.Thesegmentedapproachisthemostaccurateand
precise.MoreinformationcanbefoundintheappendixsectionofthisreferenceguideundertheMultipointCalibration
Curve Feature.
Selecting“on”forthisoptionresultsintheuseofasinglebesttlineforthecalibrationcurve,andcanbebenecialif
pH measurements vary greatly.

7
Thermo Scientific Orion Versa star pH with LogR Temperature Module
Selecting the Temperature Reading and Compensation Setting
1. Inthemeasurementmode,presssetup/3 key.
2. Usethe arrow keys to highlight the pH channel with LogR and press f3 (Select).
3. Press the right arrow key to highlight Temperature,andpressf3 (Select).
4. Usethearrow keys to highlight the desired Temperature Input. The selection is automatically saved
when highlighted.
•LogRusestheresistanceofthepHelectrode’sglassbulb.
•ATCusestheautomatic-temperaturecompensation(ATC)probe.
•MANusesthetemperaturevalueenteredinthe“TemperatureCalMAN”input.

8Thermo Scientific Orion Versa star pH with LogR Temperature Module
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9
Thermo Scientific Orion Versa star pH with LogR Temperature Module
Chapter 4 pH, RmV and ORP Calibration
pH Calibration
UptosixpHbufferscanbeusedforcalibration.Thiscanbeacombinationofautomatically-recognizedUSA/NISTor
DINbuffervaluesandcustombuffers.AlwaysusefreshpHbuffersandselectbuffersthatbracketthesamplepHand
are at least one pH unit apart. Prepare the pH electrode according to the instructions in the electrode user guide.
1. Pressf1 (Cal)toperformapHcalibration.
2. Followscreenpromptsforcalibration.Usefreshbuffers,rinseelectrodewithDIwaterbeforeeach
reading,blotwithalintfreetissue.
3. USAandDINbuffersetsareautomaticallyrecognizedbasedofftheselectioninthesetupmenu,
andthemeterallowscustombufferstobeusedforupto6calibrationpoints.Custombufferoption
prompts for the nominal values and stores data.
4. Duringcalibration,pointscanbeeditedorretestedpriortoacceptance.
5. Informationforthelastcalibrationcanbedisplayedonthemainmeasurementscreen.Refertothis
referenceguide,Chapter2ModuleOverview,DisplayInformationsectionformoreinformation.
RmV Calibration
OnestandardcanbeusedforrelativemVcalibration.Alwaysusefreshstandard.Preparetheelectrodeaccordingto
the instructions in the electrode user guide.
1. Pressf1 (Cal) toentercalibrationmode.
2. Followthescreenpromptsforcalibration.
3. Thecalibrationcanbesavedorprintedwhencomplete.
4. Informationforthelastcalibrationcanbedisplayedonthemainmeasurementscreen.Refertothis
referenceguide,Chapter2ModuleOverview,DisplayInformationsectionformoreinformation.

10 Thermo Scientific Orion Versa star pH with LogR Temperature Module
ORP Calibration
ThemVreadingofanORPstandardisdependentontheORPelectrodereferencesystem,referencematerial,lling
solutionandORPstandardtemperature.AnORPelectrodecanbeautomaticallycalibratedtoread420mVrelative
totheStandardHydrogenElectrode(EH)at25°CwhentheOrionORPstandard(cat.no.967901or96791),
OrionORPelectrode(cat.no.9678BNWP,9778BNWP,9180BNMDor9179BNMD)andOrion4MKClllingsolution
(cat.no.900011)or4MKClgel(inelectrodewithcat.no.9179BNMD)areused.TherawmVreadingofanelectrode
withthesameconditionsis220mVat25°C.
OnestandardcanbeusedforORPcalibration.Alwaysusefreshstandard.Preparetheelectrodeaccordingtothe
instructions in the electrode user guide.
1. Pressf1 (Cal)toentercalibrationmode.
2. Followthescreenpromptsforcalibration.
3. Thecalibrationcanbesavedorprintedwhencomplete.
4. Informationforthelastcalibrationcanbedisplayedonthemainmeasurementscreen.Refertothis
referenceguide,Chapter2ModuleOverview,DisplayInformationsectionformoreinformation.

11
Thermo Scientific Orion Versa star pH with LogR Temperature Module
Chapter 5 Temperature Calibration
Forimprovedtemperatureaccuracy,theOrionVersa star meter and pH with LogR Temperature module system offers
theoptionfortemperaturecalibration.OnepointcanbecalibratedforanAutomaticTemperatureCompensation(ATC)
probe.UptothreepointscanbecalibratedwhenLogRtemperatureinputisbeingused.Pleasereviewtheinformation
belowpriortocalibration.
LogR Temperature Calibration Information
Thisprocedureshouldbeperformedatleastonceperweektoensureaccuratetemperaturecompensationwhen
operatingintheLogRmode.Ifthemeterispowereddownortheelectrodeisdisconnected,theLogRtemperature
shouldberecalibrated.WhenusingthemeterforthersttimeorrestartingthemeterintheLogRmode,aLogR
temperaturecalibrationmustbeperformed.Itisrecommendedthatatleastatwo-pointtemperaturecalibrationbe
performedtomeetoptimumsystemaccuracy.Uptothreepointscanbecalibrated.RefertotheAppendix B for
additional information.
Chooseatemperaturecalibrationrangethatisatleast5ºCapart,dependingonyourexpectedoperatingrange.
Evenlybracketyourexpectedsampletemperaturerange.Amaximum20ºCrangeisrecommendedformaximum
accuracy.Forexample,formeasurementsaround20ºC,calibrateat10ºCand30ºC.Foratemperaturespangreater
than20ºC,athree-pointtemperaturecalibrationisrecommended.Formanysamples,asingle-pointcalibrationnearthe
expectedsampletemperaturewillyieldadequateresults.Aconstanttemperaturebathorahotplateisrecommended
toholdthetemperatureofcalibratingsolution.
Forbestresultsduringtemperaturecalibration,itisrecommendedthatapHbufferortapwaterbeusedas
thetemperaturecalibratingsolution.Donotusedistilledwaterbecausetheconductivityistoolowtoobtaina
goodcalibration.
LogR Calibration Technique
LogRcalibrationcanbedonebyusinganATCprobeorwithaNISTreference.Anaccurateandthefastestmethodisto
useanATCprobe.ThemostaccuratemethodistouseaNISTreference,suchasaNIST-traceablethermometer.
Note:ThemeterdefaultstousinganATCprobeforLogRcalibration.IfthetemperaturereadingfortheATCprobe
requiresadjustment,followtheinstructionsforATCprobecalibrationtechniqueinthenextsection.
1. Inthemeasurementmode,presssetup/3 key.
2. Usethe arrow keys to highlight the pH channel with LogR and press f3 (Select).
3. Press the right arrowkeytohighlightTemperature,andpressf3 (Select).
4. Temperature Input shouldbesettoLogR.Usethearrow keys to highlight the appropriate LogR
temperature channel if LogR is not already selected. Select the appropriate channel with LogR for
Temperature Cal and press f3 (Select).

12 Thermo Scientific Orion Versa star pH with LogR Temperature Module
5. If using an ATC probe:
a.VerifythepHelectrodeandATCprobeareconnectedtothepHwithLogRmodule.
b.PlacethepHelectrodeandATCprobeintothewaterbath.
If using a NIST reference:
  DisconnecttheATCprobe(ifconnectedtothepHwithLogRmodule)andplacethe
  pHelectrodeintothewaterbath.
6. Stirmoderately,usingthestirrerprobe(cat.no.096019,soldseparately)orstirplatewithstirbar.
Press f3 (Start).
7. Afterthereadingstabilizes,followthepromptstoedittemperaturevaluewithf3 (Edit) or accept the
value with f2 (Accept).
8. UptothreetemperaturepointscanbecalibratedforLogR.Foradditionaltemperaturepoints,
press f2 (Next) andrepeatsteps5and6.Whennished,press f3 (Cal Done) to complete and store
thecalibration.
Note:Tostorethecalibrationdata,thef3 (Cal Done)keymustbepressed.Pressmeasure (esc)/1
key or f1 (Back)toexitcalibrationwithoutsaving.
ATC Probe Calibration Technique
TheATCtemperaturedisplayhasarelativeaccuracyof±0.1°C.ATCprobes(bothseparateandthosebuiltinto
electrodes)havevaryingtemperatureaccuracies,usually±0.5°Cto±2°C.Use this function only if necessary.
Sincethetemperatureoffsetcalculatedduringthecalibrationisappliedtoallfuturetemperaturemeasurements,
recalibrateifadifferentATCprobeisused.Fortemperaturecalibration,theprobeneedstobeconnectedtothemeter
andthecalibrationsolutionshouldhaveaknown,stabletemperature.ItisrecommendedthattwoNIST-traceable
thermometersbeusedtomeasureandverifysolutiontemperature.
1. Pressf3 (setup) key.
2. Usethearrowkeystohighlightthechannelthatthetemperatureprobeisconnectedto.
Press f3 (select).
3. UsethearrowkeystohighlightTemperatureandpressf3 (select).
4. UsethearrowkeystohighlighttheappropriateTemperatureCaloptionandpressf3 (select).
5. Follow the onscreen prompts.

13
Thermo Scientific Orion Versa star pH with LogR Temperature Module
Chapter 6 Measurement
Afterasuccessfulcalibration,thesamplescanbetested.
1. Rinsetheelectrodewithdeionizedwater.Blotdrywithlint-freetissue.
2. Placeelectrode/ATCprobeinrstsampleandstirgently.
3. IfthemeterisinAutoReadmode(meterdefault)orsingle-shotreadmode,pressmeasure (esc) (1)
key.Ifthemeterisintimedorcontinuousreadmodes,themeterwillimmediatelystart
taking readings.
4. IfinAutoReadmodeanddatalogisenabled(default),thereadingwillautomaticallybestoredwhen
the“AR”appears.Ifincontinuousreadmodeanddatalogisenabled,presslog/print (0) key to store
intothemeter’smemory.Ifintimedreadmode,thereadingisautomaticallystoredaftereachinterval.
Ifinsingle-shotreadmode,thereadingisstoredautomaticallyafterthesingle-shottimehaspassed.
Note: Toenableordisabledatalogging,presssetupandselectInst.Settings.

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15
Thermo Scientific Orion Versa star pH with LogR Temperature Module
Chapter 7 Methods
Themeterstoresuptotenmethodsperchannelwiththelastcalibrationdatastoredforeachmethod.
Usethechannelsetuptoaccessandmodifymethods.
1. Pressf3 (setup) key.
2. Usethearrowkeystohighlighttheappropriatechannel.Pressf3 (select).
3. UsethearrowkeystohighlightMethodandpressf3 (select).
4. Themethodscanbeloaded,copied,savedandeditedbyfollowingtheonscreenprompts.

16 Thermo Scientific Orion Versa star pH with LogR Temperature Module
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