Thermo Scientific Orion Star A211 User manual

Thermo Scientific Orion Star A211 Benchtop and
Star A221 and Star A321 Portable pH Meters
Reference Guide

Ross and the COIL trade dress are trademarks of Thermo Fisher Scientific, Inc. and
its subsidiaries.
AQUAfast, AQUASensors, BOD AutoEZ, ionplus, KNIpHE, LogR, No Cal, ORION, perpHect,
PerpHecT, pHISA, pHuture, Pure Water, Sage, ROSS, ROSS Ultra, Sure-Flow, Titrator PLUS, and
TURBO2 are registered trademarks of Thermo Fisher Scientific, Inc. and its subsidiaries.
A+, All in One, Aplus, AUTO-BAR, AUTO-CAL, Auto-ID, AUTO-READ, AUTO-STIR,
Auto-Test, AutoTration, CISA, digital LogR, DuraProbe, EZ Startup, ISEasy,
Low Maintenance Triode, Minimum Stir Requirement, MSR, NISS, Optimum Results, Orion Dual
Star, Orion Star, SAOB, SMART AVERAGING, SMART STABILITY, Star LogR, Star Navigator 21,
Stat Face, Triode are trademarks of Thermo Fisher Scientific, Inc. and its subsidiaries.
Guaranteed Success and The Technical Edge are service marks of Thermo Fisher Scientific, Inc.
and its subsidiaries.
© 2011 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 Star A211 Benchtop and Star A221 and Star A321 Portable pH Meters
Chapter 1 Introduction ..........................................................1
Chapter 2 Meter Overview.......................................................3
MeterConnectionsandInputs.......................................... 3
PowerSource....................................3
ElectrodesandOtherConnections....................4
ConnectingElectrodeArmtotheBenchtopMeter........5
MeterDisplay ........................................................ 6
MeterKeypad......................................................... 7
MeterMaintenance................................................... 8
Chapter 3 Meter Setup ..........................................................9
NavigatingtheSetupMenu ............................................ 9
SetupMenuOverview................................................. 9
pHChannelMenu................................10
SettingsMenu...................................12
ViewLogMenu..................................13
DiagnosticsMenu................................13
Chapter 4 pH, RmV and ORP Calibration ..........................................15
pHCalibration....................................................... 15
CalibrationEditing................................16
RmVCalibration ..................................................... 16
ORPCalibration ..................................................... 17
Chapter 5 Temperature Calibration ..............................................19
Chapter 6 Measurement........................................................21
Chapter 7 Methods ............................................................23
SavingtheCurrentMeterSettingsasaNewMethod..................... 23
LoadinganExistingMethod........................................... 23
Editing,CopyingorDeletinganExistingMethod......................... 24

Chapter 8 Data Storage and Retrieval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
DataStorageSettings................................................ 25
ReadTypeSelection..............................25
ComputerandPrinterExportSettings.................26
DataLogSettings................................26
ViewingtheCalibrationLogandDataLog .............................. 27
ViewingtheCalibrationLog.........................27
ViewingtheDataLog..............................27
ExportingtheDataLogtoaComputerorPrinter......................... 28
ClearingtheDataLog................................................. 29
InterfacingaPrinter.................................................. 30
InterfacingaComputer............................................... 30
Chapter 9 Customer Services ...................................................31
MeterErrorsandRecommendedActions............................... 31
MeterSelfTestandCheckout ......................................... 32
MeterSelfTest..................................32
MeterCheckout(pH)..............................32
ElectrodeStabilityTest............................................... 33
MeterFactoryReset ................................................. 33
MeterUserReset .................................................... 33
AboutMeter......................................................... 34
Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Warranty and Registration ............................................ 34
OrderingInformation................................................. 35
Chapter 10 Meter Compliance....................................................39
NoticeofCompliance................................................. 39
WEEECompliance ................................................... 39
DeclarationofConformity............................................. 40
MeterSpecifications................................................. 41
Appendix 1 Advanced Meter Features .............................................43
Automatic pH Buffer Recognition Feature............................... 43
Testing a pH Electrode for Automatic Buffer Recognition . 43
ElectrodeConditionIcon ............................................. 44
MultipointCalibrationCurveFeature .................................. 45

This page intentionally left blank.

1
Thermo Scientific Orion Star A211 Benchtop and Star A221 and Star A321 Portable pH Meter Reference Guide
Chapter 1 Introduction
Thank you for your purchase of the Orion Star A211 benchtop pH meter, Star A221 portable pH meter or Star A321
portable pH meter. These meters are capable of measuring pH, mV, relative mV (RmV), ORP, and temperature in °C or °F.
The Orion Star A211 benchtop pH meters feature
tQ)SBOHFPGUPQ)VOJUTXJUIPSSFTPMVUJPOBOEVQUPDBMJCSBUJPOQPJOUT
tN7SFMBUJWFN7BOE031SBOHFPGUPN7XJUIN7SFTPMVUJPO
t"6503&"%DPOUJOVPVTXJUIIPMEPQUJPOBOEUJNFENFBTVSFNFOUNPEFT
tDBMJCSBUJPOFEJUJOH
tQPJOUEBUBMPH
tNBOVBMSFBEZ"6503&"%BOEUJNFEEBUBMPHHJOHGVODUJPOT
t*1SBUFEEVTUBOETQMBTISFTJTUBOUIPVTJOH
The Orion Star A221 portable pH meters feature
tQ)SBOHFPGUPQ)VOJUTXJUIPSSFTPMVUJPOBOEVQUPDBMJCSBUJPOQPJOUT
tN7SFMBUJWFN7BOE031SBOHFPGUPN7XJUIN7SFTPMVUJPO
t"6503&"%BOEDPOUJOVPVTXJUIIPMEPQUJPONFBTVSFNFOUNPEFT
tQPJOUEBUBMPH
tNBOVBMBOEBVUPNBUJDXJUI"6503&"%EBUBMPHHJOHGVODUJPOT
t*1SBUFEEVTUQSPPGBOEXBUFSQSPPGIPVTJOH
The Orion Star A321 portable pH meters feature
tQ)SBOHFPGUPQ)VOJUTXJUIPSSFTPMVUJPOBOEVQUPDBMJCSBUJPOQPJOUT
tN7SFMBUJWFN7BOE031SBOHFPGUPN7XJUIN7SFTPMVUJPO
t"6503&"%DPOUJOVPVTXJUIIPMEPQUJPOBOEUJNFENFBTVSFNFOUNPEFT
tDBMJCSBUJPOFEJUJOH
tQPJOUEBUBMPH
tNBOVBMSFBEZ"6503&"%BOEUJNFEEBUBMPHHJOHGVODUJPOT
t*1SBUFEEVTUQSPPGBOEXBUFSQSPPGIPVTJOH
1MFBTFSFBEUIJTSFGFSFODFHVJEFUIPSPVHIMZ"OZVTFPVUTJEFPGUIFTFJOTUSVDUJPOTNBZJOWBMJEBUFZPVSXBSSBOUZBOE
cause permanent damage to the meter.

2Thermo Scientific Orion Star A211 Benchtop and Star A221 and Star A321 Portable pH Meter Reference Guide
This page intentionally left blank.

3
Thermo Scientific Orion Star A211 Benchtop and Star A221 and Star A321 Portable pH Meter Reference Guide
Chapter 2 Meter Overview
Meter Connections and Inputs
Power Source
 1PXFSBEBQUFSJODMVEFEXJUICFODIUPQNFUFSTTPMETFQBSBUFMZGPSQPSUBCMFNFUFST
B 4FMFDUUIFBQQSPQSJBUFXBMMTPDLFUQMVHQMBUF
b. Slide off the clear plastic cover from the plug plate.
D 4MJEFUIFQMVHQMBUFJOUPUIFHSPPWFPOUIFCBDLPGUIFQPXFSBEBQUFS
E $POOFDUUIFQPXFSBEBQUFSUPUIFNFUFSBOEQPXFSPVUMFU
 #BUUFSJFTJODMVEFEXJUIQPSUBCMFNFUFSTTPMETFQBSBUFMZGPSCFODIUPQNFUFST
a. Select four AA alkaline batteries.
C $POmSNUIBUUIFNFUFSJTQPXFSFEPGG
c. Remove the battery compartment cover.
J #FODIUPQNFUFSToQVTIEPXOPOUIFCBUUFSZDPNQBSUNFOUUBCBOEMJGUUIFCBUUFSZDPWFSVQ
JJ1PSUBCMFNFUFSToMPPTFOUIFTDSFXTIPMEJOHUIFCBUUFSZDPWFSSFMFBTFUIFUPQQPSUJPOPGUIF
battery cover from the meter (use a coin or your finger) and release the bottom portion of the
battery cover.
E 0SJFOUBUFUIFCBUUFSJFTBTTIPXOJOUIFCBUUFSZDPNQBSUNFOUIPVTJOHBOEJOTFSUCBUUFSJFT
F 3FQMBDFUIFCBUUFSZDPNQBSUNFOUDPWFS'PSQPSUBCMFNFUFSToSFQMBDFUIFTDSFXT
1VTIEPXOPOUBCBOEMJGUUIF
battery cover
Orion Star A Series Benchtop
3FNPWFTDSFXT
Orion Star A Series Portable

4Thermo Scientific Orion Star A211 Benchtop and Star A221 and Star A321 Portable pH Meter Reference Guide
Electrodes and Other Connections
1. Prepare the pH electrode and any other applicable electrodes according to the directions in the
electrode user guide.
 $POOFDUUIFBQQSPQSJBUFJUFNTBTMBCFMFEPOUIFNFUFSBOEBTTIPXOJOUIFmHVSFCFMPX
t #/$o*OQVUGPSQ)FMFDUSPEFPS031SFEPYFMFDUSPEFXJUI#/$PSXBUFSQSPPG#/$DPOOFDUPS
t 3&'o*OQVUGPSSFGFSFODFFMFDUSPEFXJUITUBOEBSENNQJOUJQDPOOFDUPS
t "5$$0/o*OQVUGPS"5$QSPCFXJUIQJO.JOJ%*/DPOOFDUPS
t (SPVOEo*OQVUGPSBHSPVOEXJSFXJUIBTUBOEBSEQJOUJQDPOOFDUPSOrion Star A211 benchtop meters only.
t 1PXFSo*OQVUGPSUIFQPXFSBEBQUFS
t 4UJSSFSo*OQVUGPSUIFTUJSSFSQSPCF$BU/POrion Star A211 benchtop meters only.
t 64#o*OQVUGPSUIF64#DBCMFVTFEUPDPOOFDUUIFNFUFSUPBQSJOUFSPSDPNQVUFS
t 34o*OQVUGPSUIF34DBCMFVTFEUPDPOOFDUUIFNFUFSUPBQSJOUFSPSDPNQVUFS
Power Stirrer USB RS232
BNCATC/CONDO/RDO
Ground Ref.
DO/
RDO
ATC/
COND
POWER
USB
RS232
REF BNC
Star A211 Meter Back Panel
Star A221 and Star A321 Meter Back Panel

5
Thermo Scientific Orion Star A211 Benchtop and Star A221 and Star A321 Portable pH Meter Reference Guide
Connecting Electrode Arm to an Orion Star A Series Benchtop Meter
Orion Star A series benchtop meters include an electrode arm that can be attached to either side of the meter.
 6OQBDLUIFFMFDUSPEFBSNBOECBTF
2. Choose the side of the meter to attach the arm.
 6TFBDMFBOTVSGBDFBOEUVSOUIFNFUFSPWFS
 3FMFBTFUIFFYJTUJOHTDSFXGSPNUIFCBDLPGUIFNFUFS
 "MJHOUIFFMFDUSPEFBSNCBTFXJUIUIFDJSDMFTBUUIFCPUUPNPGUIFNFUFS5IFNFUBMQPTUPOUIFFMFDUSPEFBSNCBTF
should be on the same side as the meter display.
 5BLFUIFTDSFXUIBUXBTSFNPWFEBOEVTFJUUPTFDVSFUIFFMFDUSPEFBSNCBTFUPUIFNFUFS
 5VSOUIFNFUFSPWFS
 1MBDFUIFIPMFBUUIFCPUUPNPGUIFFMFDUSPEFBSNPOUPUIFNFUBMQPTUPOUIFFMFDUSPEFBSNCBTF

6Thermo Scientific Orion Star A211 Benchtop and Star A221 and Star A321 Portable pH Meter Reference Guide
Meter Display
Display Icon Description
4IPXOXIFOUIFNFUFSJTSVOOJOHPO"$QPXFS
4IPXOXIFOUIFNFUFSIBTCBUUFSJFTJOTUBMMFE
*OEJDBUFTEBUBJTCFJOHTFOUUPBDPNQVUFSPSQSJOUFS
*OEJDBUFTEBUBJTCFJOHTFOUUPUIFEBUBMPH
4IPXOXIFOBOBMBSNJTTFUBOEUIFBMBSNWBMVFJTSFBDIFE
*OEJDBUFTUIFNFUFSJTTFUUPCFJOUFSGBDFEXJUIBQSJOUFSPSDPNQVUFSWJBUIF34QPSU
*OEJDBUFTUIFNFUFSJTTFUUPCFJOUFSGBDFEXJUIBQSJOUFSPSDPNQVUFSWJBUIF64#QPSU
%JTQMBZTUIFUJNFBOEEBUFFOUFSFEJOUIFTFUVQNFOV
25.0˚C
ATC
%JTQMBZTUIFDVSSFOUUFNQFSBUVSFCBTFEPOUIFUFNQFSBUVSFQSPCFSFBEJOHPSFOUFSFEUFNQFSBUVSFWBMVF4IPXTUIF
PSJHJOPGUIFUFNQFSBUVSFBT."/FOUFSFEUFNQFSBUVSFPS"5$UFNQFSBUVSFQSPCF
HOLD 4IPXOXIFO is pressed and the displayed measurement is frozen.
*OEJDBUFTBDBMJCSBUJPOXBTTVDDFTTGVMMZDPNQMFUFE*DPOXJMMCMJOLXIFOUIFDBMJCSBUJPOBMBSNJTTFUBOEUIF
alarm value is reached.
*OEJDBUFTUIFQ)FMFDUSPEFDPOEJUJPOBTHPPEUXPCBSTGBJSPOFCBSPSCBETMBTIUISPVHIJUCBTFEPOUIFMBTU
saved calibration and measurement stability.
M
100 *OEJDBUFTBNFUIPEJTJOVTFBOEUIFOVNCFSPGUIFNFUIPECFJOHVTFE
pH *OEJDBUFTUIFUZQFPGNFBTVSFNFOUBOEEFUFSNJOFTUIFUZQFPGDBMJCSBUJPOUIBUXJMMCFQFSGPSNFE
ready Specifies the stability of the electrode as stabilizing or ready.
4IPXOXIFOUIFNFUFSJTJO"6503&"%NPEF5IF JDPOXJMMCMJOLXIJMFUIFSFBEJOHJTTUBCJMJ[JOHBOETUPQ
CMJOLJOHXIFOUIFSFBEJOHJTTUBCMFBOEUIFNFBTVSFNFOUJTMPDLFEPOUIFEJTQMBZ
7.000 pH %JTQMBZTUIFNFBTVSFNFOUWBMVFCBTFEPOUIFMBTUTBWFEDBMJCSBUJPOBOEDVSSFOUFMFDUSPEFSFBEJOH6OJUTBSF
TIPXOUPUIFSJHIUPGUIFWBMVF
0.0mV 4IPXTUIFSBXNJMMJWPMUSFBEJOHPGUIFFMFDUSPEF
BUFFERS: 1.68,
…4IPXTUIFCVGGFSWBMVFTVTFEGPSUIFMBTUTBWFEDBMJCSBUJPO
4IPXTUIFPQFSBUPSBTTJHOFETBNQMF*%OVNCFSOrion Star A211 and Star A321 meters only.
4IPXTUIFPQFSBUPSBTTJHOFEVTFS*%OVNCFSOrion Star A211 and Star A321 meters only.
cal %JTQMBZTUIFBDUJPOUIBUXJMMCFQFSGPSNFEXIFOf1 is pressed.
sample ID %JTQMBZTUIFBDUJPOUIBUXJMMCFQFSGPSNFEXIFOf2 is pressed.
channel %JTQMBZTUIFBDUJPOUIBUXJMMCFQFSGPSNFEXIFOf3 is pressed.

7
Thermo Scientific Orion Star A211 Benchtop and Star A221 and Star A321 Portable pH Meter Reference Guide
Meter Keypad
Press the f1, f2 and f3GVODUJPOLFZTUPQFSGPSNUIFBDUJPOTIPXOBCPWFFBDILFZPOUIFEJTQMBZ
Press to turn the meter on.
8IFOUIFNFUFSJTPOQSFTTBOERVJDLMZSFMFBTFUPUVSOUIFEJTQMBZCBDLMJHIUPOPSPGGPSIPMEEPXOUP
turn the meter off.
*OUIFNFBTVSFNFOUNPEFQSFTTUPUBLFBNFBTVSFNFOU
*OUIFTFUVQDBMJCSBUJPOBOEPUIFSNFOVTQSFTTUPFTDBQFUIFDVSSFOUNFOVBOESFUVSOUPUIF
measurement mode.
*OUIFNFBTVSFNFOUNPEFQSFTTUPFOUFSUIFTFUVQNFOV
*OUIFTFUVQDBMJCSBUJPOBOEPUIFSNFOVTQSFTTUPTDSPMMVQUISPVHIBMJTUPGPQUJPOT
*OUIFDPOUJOVPVTNFBTVSFNFOUNPEFQSFTTUPIPMEGSFF[FUIFEJTQMBZFENFBTVSFNFOUBOEQSFTT
again to release (unfreeze) the measurement.
*OUIFTFUVQDBMJCSBUJPOBOEPUIFSNFOVTQSFTTUPTDSPMMMFGUUISPVHIBMJTUPGPQUJPOT
*OUIFNFBTVSFNFOUNPEFQSFTTUPDIBOHFUIFEJTQMBZFENFBTVSFNFOUNPEF0QUJPOTBSFQ)N73N7
(relative mV) and ORP.
*OUIFTFUVQDBMJCSBUJPOBOEPUIFSNFOVTQSFTTUPTDSPMMSJHIUUISPVHIBMJTUPGPQUJPOT
*OUIFNFBTVSFNFOUNPEFQSFTTUPMPHPSQSJOUBNFBTVSFNFOU
*OUIFTFUVQDBMJCSBUJPOBOEPUIFSNFOVTQSFTTUPTDSPMMEPXOUISPVHIBMJTUPGPQUJPOT
1SFTTUPWJFXUIFEBUBMPHBOEDBMJCSBUJPOMPHOrion Star A211 benchtop meters only.
Press to start or stop the stirrer probe. Orion Star A211 benchtop meters only.
log/print
mode
setup
hold
measure
(esc)
Orion Star A200
and A300 Series
Portable Keypad
Orion Star A200 Series
Benchtop Keypad

8Thermo Scientific Orion Star A211 Benchtop and Star A221 and Star A321 Portable pH Meter Reference Guide
1. Press UPQPXFSUIFNFUFSPO8IFOUIFNFUFSJTPOQSFTTBOERVJDLMZSFMFBTF to turn the backlight
on or off or press and hold GPSBCPVUUISFFTFDPOETUPQPXFSUIFNFUFSPGG
2. Press UPFYJUBOZNFUFSGVODUJPOBOESFUVSOUPUIFNFBTVSFNFOUNPEF
3. The f1, f2, and f3GVODUJPOLFZTQFSGPSNBWBSJFUZPGNFUFSPQFSBUJPOT5IFNFOVTQFDJmDPQFSBUJPOJTTIPXO
BCPWFFBDILFZPOUIFEJTQMBZ'PSFYBNQMFQSFTTf1 in the measurement mode to start a calibration.
 5IF , , or LFZTBSFVTFEBTOBWJHBUJPOLFZTVQSJHIUEPXOMFGUXIFOTFMFDUJOHGSPNBmYFE
MJTUPSHSJEPGNFUFSPQUJPOT*OUIFNFBTVSFNFOUNPEFUIFTFLFZTBSFVTFEUPBDDFTTUIFTFUVQNFOVDIBOHF
the measurement mode, manually log or print a measurement and hold (freeze) a displayed measurement in the
continuous measurement mode.
 *OUIFDPOUJOVPVTNFBTVSFNFOUNPEFXIFO is pressed and the measurement is being held (frozen), only the
LFZXJMMCFGVODUJPOBMVOUJMUIFNFBTVSFNFOUJTSFMFBTFEVOGSP[FO
 1SFTT UPUVSOPOPSPGGUIFTUJSSFSQSPCF$BU/POrion Star A211 benchtop meters only.
 1SFTT to access the calibration log and data log. Orion Star A211 benchtop meters only.
Meter Maintenance
'PSSPVUJOFNFUFSNBJOUFOBODFEVTUBOEXJQFUIFNFUFSXJUIBEBNQDMPUI*GOFDFTTBSZXBSNXBUFSPSBNJME
XBUFSCBTFEEFUFSHFOUDBOCFVTFE.FUFSNBJOUFOBODFDBOCFQFSGPSNFEPOBEBJMZXFFLMZPSNPOUIMZCBTJTBT
SFRVJSFECZUIFFOWJSPONFOUJOXIJDIUIFNFUFSJTPQFSBUFE*NNFEJBUFMZSFNPWFBOZTQJMMFETVCTUBODFGSPNUIF
meter using the proper cleaning procedure for the type of spill.

9
Thermo Scientific Orion Star A211 Benchtop and Star A221 and Star A321 Portable pH Meter Reference Guide
Chapter 3 Meter Setup
Navigating the Setup Menu
 *OUIFNFBTVSFNFOUNPEFQSFTT to enter the main setup menu.
2. Press , , or to scroll through the main setup menu options. Press f3 (select) to
select a main setup menu option.
3. Press or to scroll through setup submenu options. Press f3 (select) to select a setup submenu option.
 1FSGPSNUIFBQQSPQSJBUFBDUJPOTUPTFUUIFEFTJSFEQBSBNFUFSJOUIFTFUVQTVCNFOVT
a. To select a value from a list of options, press or to highlight the desired value and press
f3 (select) to set the value.
b. To enter a numeric value, use the numeric entry screen.
i. Select the value to be entered by pressing f3 (select) or f3 (edit)5IFOVNFSJDFOUSZTDSFFOXJMMQPQVQPOUIFEJTQMBZ
ii. Press , , or to highlight a number, decimal place or negative sign; press
f3 (enter)UPTFMFDUUIFIJHIMJHIUFEJUFNBOESFQFBUVOUJMUIFEFTJSFEWBMVFJTTIPXOPOUIFUPQPGUIFOVNFSJD
entry screen.
iii. Press f2 (done)UPTBWFUIFWBMVFBOEFYJUUIFOVNFSJDFOUSZTDSFFO
 1SFTTf1 (back) and then to return to the measurement mode at any time.
Setup Menu Overview
pH Channel Settings Log View Diagnostics
Method (Star A211 and Star A321 meters only)
Mode & Settings
t.FBTVSF.PEF
t3FBE5ZQF
t3FTPMVUJPO
t#VGGFS(SPVQ
t4UBCJMJUZ(Star A211 and Star A321 meters only)
t"WFSBHJOH(Star A211 and Star A321 meters only)
t-JNJU"MBSN
t$BM%VF"MBSN
Temperature
t.BOVBM5FNQ7BMVF
t5FNQFSBUVSF6OJU
t5FNQFSBUVSFCalibration
t&YQPSU%BUB
t%BUB-PH
t%BUF5JNF
t-BOHVBHF
t,FZ1SFTT#FFQ
t"MBSN#FFQ
t4UJSSFS(Star A211 meters only)
t$POUSBTU
t"VUP4IVU0GG
t6TFS*%(Star A211 and Star A321 meters only)
t4BNQMF*%(Star A211 and Star A321 meters only)
t%BUB-PH
t$BMJCSBUJPO-PH
t'BDUPSZ3FTFU
t6TFS3FTFU
t4FMG5FTU
t4UBCJMJUZ5FTU
t"CPVU.FUFS

10 Thermo Scientific Orion Star A211 Benchtop and Star A221 and Star A321 Portable pH Meter Reference Guide
pH Channel Menu
5IFQ)$IBOOFMTFUVQNFOVJTVTFEUPSFWJFXBOEDIBOHFQBSBNFUFSTSFMBUJOHUPQ)N7SFMBUJWFN7BOE031
measurements and calibrations.
Main Setup Menu 2nd Level 3rd Level Menu Options Menu Description
pH Channel
Method List of Methods
.FOVBMMPXTUIFDVSSFOUNFUFSTFUUJOHTUPCFTBWFEBTBOFXNFUIPE
BOFYJTUJOHNFUIPEUPCFSVOPOUIFNFUFSPSBOFYJTUJOHNFUIPEUPCF
WJFXFEFEJUFEDPQJFEEFMFUFEPSQSJOUFE
Star A211 and Star A321 meters only.
Mode and Settings
Measure Mode
tQ)
tN7
t3N7
t031
.FOVVTFEUPTFMFDUUIFEJTQMBZFENFBTVSFNFOUNPEFXIJDI
EFUFSNJOFTUIFUZQFPGDBMJCSBUJPOUIFNFUFSXJMMQFSGPSN
Read Type
t"VUP
t$POUJOVPVT
t5JNFE
(Star A211 and Star
A321 meters only)
.FOVVTFEUPTFMFDUIPXUIFNFUFSXJMMUBLFNFBTVSFNFOUT
Auto ( )– Press to take a measurement. When the
measurement is stable, it is locked on the display until is
pressed again.
Continuous – The measurement is constantly updated on the
display and stabilizing or readyJTTIPXOUPJOEJDBUFUIF
measurement stability.
Timed – Measurements are taken at a set time interval. To enter
the time interval, highlight tTimed press to highlight the
hours (HH), minutes (MM) or seconds (SS), press f3 (edit) and use
the numeric entry screen to change the values.
Resolution
t%FDJNBM1MBDF

t%FDJNBM1MBDFT

t%FDJNBM1MBDFT

Menu used to select the resolution for the displayed measurement values.
Buffer Group t64"
t%*/
Menu used to select the buffer group used for automatic buffer
recognition during pH calibrations.
64"oQ)CVGGFST
%*/oQ)CVGGFST

11
Thermo Scientific Orion Star A211 Benchtop and Star A221 and Star A321 Portable pH Meter Reference Guide
pH Channel Menu (cont.)
Main Setup Menu 2nd Level 3rd Level Menu Options Menu Description
pH Channel
(cont.)
Mode and Settings
(cont.)
Stability
t4NBSU4UBCJMJUZ
t'BTU
t.FEJVN
t4MPX
.FOVVTFEUPTFMFDUIPXUIFTUBCJMJUZPGUIFEJTQMBZFENFBTVSFNFOU
values is indicated. Smart Stability automatically compensates for
measurement conditions and optimizes the meter response time.
Star A211 and Star A321 meters only.
Averaging t0GG
t"VUPNBUJD4NBSU
Menu used to turn the averaging function on or off. Automatic Smart
automatically compensates for measurement conditions and optimizes
the meter response time.
Star A211 and Star A321 meters only.
-JNJU"MBSN
t-JNJU"MBSN
On
Off
t"MBSN4FUUJOHT
-PX
High
)JHI-PX
t)JHI-JNJU
t-PX-JNJU
Menu used to turn the limit alarm on or off and to set the limit alarm
parameters. The limit alarm is triggered if the measurement goes above
BIJHIWBMVFBOEPSCFMPXBMPXWBMVFTFUCZUIFPQFSBUPS1SFTT or
to change the setting on each line, press or to select
another line and use the numeric entry screen to enter limit values.
Star A211 and Star A321 meters only.
$BM%VF"MBSN
t$BM%VF"MBSN
On
Off
t$BM%VF-JNJU
Menu used to turn the calibration due alarm on or off and to set the
calibration due alarm time. The calibration due alarm is triggered if a set
BNPVOUPGUJNFIBTQBTTFEXJUIPVUBDBMJCSBUJPOCFJOHQFSGPSNFE1SFTT
or to change the setting on the top line, or to
select another line and use the numeric entry screen to enter the
calibration due value in hours.
Star A211 and Star A321 meters only.
Star A221 meters have the cal due alarm with a fixed value of 12 hours.
Temperature Manual Temp Value %FGBVMUWBMVFPSMBTU
entered value.
.FOVVTFEUPTFUUIFUFNQFSBUVSFWBMVFUIBUXJMMCFVTFEGPSBMM
NFBTVSFNFOUTBOEDBMJCSBUJPOT6TFUIFOVNFSJDFOUSZTDSFFOUPFOUFS
the temperature.
5FNQFSBUVSF6OJU t$FMTJVT
t'BISFOIFJU Menu used to select the temperature units.
Temperature Calibration t"5$ .FOVBMMPXTUIFUFNQFSBUVSFNFBTVSFECZBO"5$QSPCFTFQBSBUFPS
built in to an electrode) to be adjusted by the operator.
5FNQFSBUVSF*OQVU t"5$
t.BOVBM Menu used to select the source of the temperature measurement.

12 Thermo Scientific Orion Star A211 Benchtop and Star A221 and Star A321 Portable pH Meter Reference Guide
Settings Menu
5IF4FUUJOHTTFUVQNFOVJTVTFEUPSFWJFXBOEDIBOHFQBSBNFUFSTSFMBUJOHUPUIFHFOFSBMPQFSBUJPOPGUIFNFUFS
Main Setup Menu 2nd Level Menu Options Menu Description
Settings
&YQPSU%BUB
t1SJOUJOH
t0O
t0GG
t$PNN4FUVQ
t34
t64#
t%BUB'PSNBU
t1SJOUFS
t1$$47
t$PNN$POGJH
t
t
t
t
t
t
.FOVVTFEUPUVSOEBUBFYQPSUJOHPOPSPGGTFUUIFNFUFSUPCFJOUFSGBDFEVTJOHUIF
34PS64#QPSUTFUUIFFYQPSUFEEBUBGPSNBUGPSBQSJOUFSTUSJOHPGUFYUPS1$
DPNNBEFMJNJUFEUFYUBOETFUUIFCBVESBUF
%BUB-PH t0GG
t0O Menu used to turn on or off the data log feature.
%BUF5JNF t%BUF
t%%..::
t..%%::
t5JNF
t)PVS$MPDL
t)PVS$MPDL
.FOVVTFEUPTFUUIFEBUFGPSNBUBTEBZNPOUIZFBSPSNPOUIEBZZFBSFOUFS
UIFEBUFWBMVFTTFUUIFUJNFGPSNBUBTIPVSPSIPVSDMPDLBOEFOUFSUIFUJNF
WBMVFT6TFUIFOVNFSJDFOUSZTDSFFOUPFOUFSUIFWBMVFT
-BOHVBHF t&OHMJTI
t4QBOJTI
t(FSNBO
t'SFODI
t*UBMJBO
t$IJOFTF
Menu used to set the language for all displayed meter prompts.
,FZ1SFTT#FFQ t0GG
t0O Menu used to turn on or off the beep sound made every time a meter key is pressed.
Alarm Beep t0GG
t0O .FOVVTFEUPUVSOPOPSPGGUIFCFFQTPVOENBEFXIFOBOBMBSNWBMVFJTSFBDIFE

13
Thermo Scientific Orion Star A211 Benchtop and Star A221 and Star A321 Portable pH Meter Reference Guide
Settings Menu (cont.)
Main Setup Menu 2nd Level Menu Options Menu Description
Settings (cont.)
Stirrer t4QFFE
t4QFFE
t4QFFE
t4QFFE
t4QFFE
Menu used to turn the stirrer probe on or off and to set the stirrer probe speed.
Star A211 meters only.
Contrast t-FWFM
t-FWFM
t-FWFM
t-FWFM
t-FWFM
t-FWFM
Menu used to set the display contrast.
Auto Shut Off t0GG
t0O
.FOVVTFEUPUVSOPOPSPGGUIFNFUFSBVUPNBUJDTIVUPGGGFBUVSFXIJDIUVSOTUIF
NFUFSPGGXIFOOPLFZTBSFQSFTTFEGPSNJOVUFT
6TFS*% %FGBVMUWBMVFPSMBTU
entered value.
.FOVVTFEUPTFUUIFVTFS*%6TFUIFBMQIBOVNFSJDFOUSZTDSFFOUPFOUFSUIFVTFS*%
Star A211 and Star A321 meters only.
4BNQMF*% t0GG
t.BOVBM
t"VUP*ODSFNFOUBM
.FOVVTFEUPUVSOUIFTBNQMF*%PGGPSPO8IFOTBNQMF*%JTTFUUPNBOVBMPSBVUP
JODSFNFOUBMFOUFSUIFTBNQMF*%JOUIFNFBTVSFNFOUNPEFCZQSFTTJOHf2 (sample
ID) and using the alphanumeric entry screen.
Star A211 and Star A321 meters only.
View Log Menu
5IF7JFX-PHTFUVQNFOVJTVTFEUPBDDFTTJOGPSNBUJPOTUPSFEJOUIFEBUBMPHBOEDBMJCSBUJPOMPH3FGFSUPUIF%BUB
Storage and Retrieval chapter for detailed information on using this setup menu.
Diagnostics Menu
5IF%JBHOPTUJDTTFUVQNFOVJTVTFEUPQFSGPSNUIFNFUFSTFMGUFTUSFTFUUIFNFUFSUPUIFGBDUPSZEFGBVMUTFUUJOHTBOE
EJTQMBZNFUFSJOGPSNBUJPOJODMVEJOHTFSJBMOVNCFSBOETPGUXBSFSFWJTJPO3FGFSUPUIF$VTUPNFS4FSWJDFTDIBQUFSGPS
detailed information on using this setup menu.

14 Thermo Scientific Orion Star A211 Benchtop and Star A221 and Star A321 Portable pH Meter Reference Guide
This page intentionally left blank.

15
Thermo Scientific Orion Star A211 Benchtop and Star A221 and Star A321 Portable pH Meter Reference Guide
Chapter 4 pH, RmV and ORP Calibration
5IF0SJPO4UBS"BOE4UBS"TFSJFTQ)NFUFSTDBOQFSGPSNBPOFUPmWFQPJOUQ)DBMJCSBUJPOPOFQPJOUSFMBUJWF
N7DBMJCSBUJPOBOEPOFQPJOU031DBMJCSBUJPO4UFQCZTUFQJOTUSVDUJPOTBOEQSPNQUTBSFEJTQMBZFEPOUIFNFUFSUPBTTJTU
PQFSBUPSTXJUIUIFDBMJCSBUJPONFOVT5IFNFUFSDBOTBWFVQUPDBMJCSBUJPOTJOUIFMPHBOEDBMJCSBUJPOEBUBDBOCF
FYQPSUFEGSPNUIFNFUFSUPBQSJOUFSPSDPNQVUFS
pH Calibration
0OFUPmWFQ)CVGGFSTDBOCFVTFEGPSDBMJCSBUJPO"MXBZTVTFGSFTIQ)CVGGFSTBOETFMFDUCVGGFSTUIBUCSBDLFUUIF
sample pH and are one to four pH units apart. Prepare the pH electrode according to the instructions in the electrode use
guide. Connect the pH electrode and any other electrodes to be used (stirrer probe, ATC probe, reference electrode) to the
NFUFS1PXFSPOUIFNFUFSBOETFUUIFNFBTVSFNFOUNPEFUPQ)
Note: In most calibration screens, press f1 (esc) to return to the measurement mode without saving the calibration.
 *OUIFNFBTVSFNFOUNPEFQSFTTf1 (cal).
 3JOTFUIFQ)FMFDUSPEFBOEBOZPUIFSFMFDUSPEFTJOVTFXJUIEJTUJMMFEXBUFSCMPUESZXJUIBMJOUGSFFUJTTVFBOEQMBDF
into the pH buffer.
3. When the electrode and buffer are ready, press f3 (start)*GVTJOHB4UBS"CFODIUPQNFUFSBOETUJSSFSQSPCFUIF
TUJSSFSQSPCFXJMMBVUPNBUJDBMMZTUBSUTUJSSJOHBUUIFTQFFETFMFDUFEJOUIFTFUVQNFOVPODFf3 (start) is pressed and stop
stirring once the reading stabilizes.
 8BJUGPSUIFQ)WBMVFPOUIFNFUFSUPTUBCJMJ[FBOETUPQnBTIJOHBOEQFSGPSNPOFPGUIFGPMMPXJOHBDUJPOT
a. Press f2 (accept) to accept the displayed value.
b. Press f3 (edit) to access the numeric entry screen and edit the value.
i. Press , , or to highlight a number, decimal point or negative sign; press
f3 (enter) to select the highlighted item and repeat until the value at the measured temperature is
TIPXOBCPWFUIFOVNFSJDFOUSZTDSFFO
ii. Press f2 (done)UPFYJUUIFOVNFSJDFOUSZTDSFFO
iii.Press f2 (accept) to accept the entered value.
 1SFTTf2 (next) UPQSPDFFEUPUIFOFYUCVGGFSBOESFQFBUTUFQTUISPVHIPSpress f3 (cal done) to save and end
UIFDBMJCSBUJPO*GmWFCVGGFSTBSFVTFEUIFDBMJCSBUJPOXJMMTBWFBOEFOEPODFUIFmGUIWBMVFJTBDDFQUFE
B *GBPOFQPJOUDBMJCSBUJPOJTQFSGPSNFEQSFTTf2 (accept) to accept the displayed slope value or press
f3 (edit) to access the numeric entry screen, enter the slope value and press f2 (accept).
 5IFNFUFSXJMMEJTQMBZUIFDBMJCSBUJPOTVNNBSZJODMVEJOHUIFBWFSBHFTMPQFBOEFYQPSUUIFEBUBUPUIFDBMJCSBUJPOMPH1SFTT
f1 (meas) to proceed to the measurement mode or press f2 (print)UPQSPDFFEUPUIFNFBTVSFNFOUNPEFBOEFYQPSUUIFEBUB
to a printer or computer.