Thermo Scientific Orion Star A325 Reference Guide - Geotech ...
Thermo Scientific Orion Star A325 Reference Guide - Geotech ...
Thermo Scientific Orion Star A325 Reference Guide - Geotech ...
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<strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong> A215 Benchtopand <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meters<strong>Reference</strong> <strong>Guide</strong>
Ross and the COIL trade dress are trademarks of <strong>Thermo</strong> Fisher <strong>Scientific</strong>, Inc. andits 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, andTURBO2 are registered trademarks of <strong>Thermo</strong> Fisher <strong>Scientific</strong>, 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 <strong>Star</strong>tup, ISEasy,Low Maintenance Triode, Minimum Stir Requirement, MSR, NISS, Optimum Results, <strong>Orion</strong> Dual<strong>Star</strong>, <strong>Orion</strong> <strong>Star</strong>, SAOB, SMART AVERAGING, SMART STABILITY, <strong>Star</strong> LogR, <strong>Star</strong> Navigator 21,Stat Face, Triode are trademarks of <strong>Thermo</strong> Fisher <strong>Scientific</strong>, Inc. and its subsidiaries.Guaranteed Success and The Technical Edge are service marks of <strong>Thermo</strong> Fisher <strong>Scientific</strong>, Inc.and its subsidiaries.© 2011 <strong>Thermo</strong> Fisher <strong>Scientific</strong> Inc. All rights reserved. All trademarks are the property of<strong>Thermo</strong> Fisher <strong>Scientific</strong>, Inc. and its subsidiaries.The specifications, descriptions, drawings, ordering information and part numbers within thisdocument are subject to change without notice.This publication supersedes all previous publications on this subject.
<strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity MetersChapter 1 Introduction ..........................................................1Chapter 2 Meter Overview. ......................................................3Meter Connections and Inputs.......................................... 3Power Source ....................................3Electrodes and Other Connections....................4Connecting Electrode Arm to the Benchtop Meter........5Meter Display ........................................................ 6Meter Keypad......................................................... 7Meter Maintenance ................................................... 8Chapter 3 Meter Setup ..........................................................9Navigating the Setup Menu ............................................ 9Setup Menu Overview................................................. 9pH Channel Menu................................10COND Channel Menu.............................12Settings Menu...................................14View Log Menu..................................15Diagnostics Menu................................15Chapter 4 pH, RmV and ORP Calibration ..........................................17pH Calibration ....................................................... 17Calibration Editing................................18RmV Calibration ..................................................... 18ORP Calibration ..................................................... 19Chapter 5 Conductivity Calibration ..............................................21Automatic and Direct Calibration ...................................... 21Calibration Editing................................22Manual Conductivity Calibration. ...................................... 22Chapter 6 Temperature Calibration ..............................................23Chapter 7 Measurement. .......................................................25Chapter 8 Methods ............................................................27Saving the Current Meter Settings as a New Method..................... 27Loading an Existing Method........................................... 27Editing, Copying or Deleting an Existing Method......................... 28
Chapter 9 Data Storage and Retrieval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29Data Storage Settings ................................................ 29Read Type Selection ..............................29Computer and Printer Export Settings................ 30Data Log Settings ............................... 30Viewing the Calibration Log and Data Log .............................. 31Viewing the Calibration Log.........................31Viewing the Data Log..............................31Exporting the Data Log to a Computer or Printer ......................... 32Clearing the Data Log................................................. 33Interfacing a Printer.................................................. 34Interfacing a Computer ............................................... 34Chapter 10 Customer Services ...................................................35Meter Errors and Recommended Actions ............................... 35Meter Self Test and Checkout ......................................... 36Meter Self Test................................. 36Meter Checkout (pH)..............................37Meter Checkout (Conductivity) ......................37Electrode Stability Test............................................... 38Meter Factory Reset ................................................. 38Meter User Reset .................................................... 39About Meter......................................................... 39Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Warranty and Registration ............................................ 39Ordering Information ................................................. 40Chapter 11 Meter Compliance. ...................................................43Notice of Compliance................................................. 43WEEE Compliance ................................................... 43Declaration of Conformity............................................. 44Meter Specifications................................................. 45Appendix 1 Advanced Meter Features .............................................48Automatic pH Buffer Recognition Feature. .............................. 48Testing a pH Electrode for Automatic Buffer Recognition . 48Electrode Condition Icon ............................................. 49Multipoint Calibration Curve Feature .................................. 50Conductivity Temperature Compensation and <strong>Reference</strong> Temperature ..... 51Conductivity and Total Dissolved Solids (TDS). .......................... 51Conductivity Automatic Calibration .................................... 51
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Chapter 1 IntroductionThank you for your purchase of the <strong>Orion</strong> <strong>Star</strong> A215 benchtop pH/conductivity or <strong>Star</strong> <strong>A325</strong> portable pH/conductivitymeter. These meters are capable of measuring pH, mV, relative mV (RmV), ORP, conductivity, TDS, salinity, resistivity,and temperature in °C or °F.The <strong>Orion</strong> <strong>Star</strong> A215 benchtop pH/conductivity meters featurecalibration pointsThe <strong>Orion</strong> <strong>Star</strong> <strong>A325</strong> portable pH/conductivity meters featurecalibration pointscause permanent damage to the meter.<strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>1
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Chapter 2 Meter OverviewMeter Connections and InputsPower Source b. Slide off the clear plastic cover from the plug plate. a. Select four AA alkaline batteries.c. Remove the battery compartment cover. battery cover from the meter (use a coin or your finger) and release the bottom portion of thebattery cover.<strong>Orion</strong> <strong>Star</strong> A Series Benchtop<strong>Orion</strong> <strong>Star</strong> A Series Portablebattery cover<strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>3
Electrodes and Other Connections1. Prepare the pH electrode, conductivity cell and any other applicable electrodes according to the directionsin the electrode user guide. GroundRef.DO/RDOATC/CONBNCPowerStirrerUSBRS232<strong>Star</strong> A215 Meter Back PanelDO/RDOATC/CONDUSBREFBNCPOWERRS232<strong>Star</strong> <strong>A325</strong> Meter Back Panel<strong>Orion</strong> <strong>Star</strong> A215 benchtop meters only.<strong>Orion</strong> <strong>Star</strong> A215 benchtop meters only.4 <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>
Connecting Electrode Arm to an <strong>Orion</strong> <strong>Star</strong> A Series Benchtop Meter<strong>Orion</strong> <strong>Star</strong> A series benchtop meters include an electrode arm that can be attached to either side of the meter. 2. Choose the side of the meter to attach the arm. should be on the same side as the meter display. <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>5
Meter DisplayDisplay IconDescriptionDisplays the time and date entered in the setup menu.25.0˚CATCHOLD is pressed and the displayed measurement is frozen.alarm value is reached.saved calibration and measurement stability.M100pH ready Specifies the stability of the electrode as stabilizing or ready.7.000 pH0.0mVBUFFERS: 1.68,…Cell Constant :0.4750Std:100 1413 12.9mSTc:-Ln pH mode only.pH mode only. Conductivity mode only. Conductivity mode only.Conductivity mode only.calsample IDchannelf1 is pressed.f2 is pressed.f3 is pressed.6 <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>
Meter Keypad<strong>Orion</strong> <strong>Star</strong> A200and A300 SeriesPortable Keypadholdsetupmeasure(esc)mode<strong>Orion</strong> <strong>Star</strong> A200 SeriesBenchtop Keypadlog/printPress the f1, f2 and f3Press to turn the meter on.turn the meter off.measurement mode.again to release (unfreeze) the measurement.for channel 1 are pH, mV, RmV (relative mV) or ORP. Options for channel 2 are Cond (conductivity), TDS,Salinity and Res (resistivity).<strong>Orion</strong> <strong>Star</strong> A215 benchtop meters only.Press to start or stop the stirrer probe. <strong>Orion</strong> <strong>Star</strong> A215 benchtop meters only.<strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>7
1. Press to turn the backlighton or off or press and hold 2. Press 3. The f1, f2, and f3f1 in the measurement mode to start a calibration. , , or the measurement mode, manually log or print a measurement and hold (freeze) a displayed measurement in thecontinuous measurement mode. is pressed and the measurement is being held (frozen), only the <strong>Orion</strong> <strong>Star</strong> A215 benchtop meters only. to access the calibration log and data log. <strong>Orion</strong> <strong>Star</strong> A215 benchtop meters only.Meter Maintenancemeter using the proper cleaning procedure for the type of spill.8 <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>
Chapter 3 Meter SetupNavigating the Setup Menu to enter the main setup menu.2. Press , , or to scroll through the main setup menu options. Press f3 (select) toselect a main setup menu option.3. Press or to scroll through setup submenu options. Press f3 (select) to select a setup submenu option. a. To select a value from a list of options, press or to highlight the desired value and pressf3 (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)ii. Press , , or to highlight a number, decimal place or negative sign; pressf3 (enter)entry screen.iii. Press f2 (done)Setup Menu Overview5. Press f1 (back) and then to return to the measurement mode at any time.pH Channel COND Channel Settings Log View DiagnosticsMethodMode & SettingsTemperatureCalibrationMethodMode & Settings(TDS only)(Salinity only)Temperature(<strong>Star</strong> A215 meters only) Temperature Calibration<strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>9
pH Channel Menumeasurements and calibrations.Main Setup Menu 2nd Level 3rd Level Menu Options Menu DescriptionpH ChannelMethodList of MethodsMode and SettingsMeasure ModeAuto ( )– Press to take a measurement. When themeasurement is stable, it is locked on the display untilisRead Typepressed again.Continuous – The measurement is constantly updated on thedisplay and stabilizing or readymeasurement stability.Timed – Measurements are taken at a set time interval. To enterthe time interval, highlight Timed pressto highlight thehours (HH), minutes (MM) or seconds (SS), press f3 (edit) and useResolutionBuffer Groupthe numeric entry screen to change the values.Menu used to select the resolution for the displayed measurement values.Menu used to select the buffer group used for automatic bufferrecognition during pH calibrations.10 <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>
pH Channel Menu (cont.)Main Setup Menu 2nd Level 3rd Level Menu Options Menu DescriptionStabilityvalues is indicated. Smart Stability automatically compensates formeasurement conditions and optimizes the meter response time.AveragingMenu used to turn the averaging function on or off. Automatic Smartautomatically compensates for measurement conditions and optimizesthe meter response time.pH Channel(cont.)Mode and Settings(cont.)Cal Due AlarmOnOffHighOnOffMenu used to turn the limit alarm on or off and to set the limit alarmparameters. The limit alarm is triggered if the measurement goes aboveor to change the setting on each line, press or to selectanother line and use the numeric entry screen to enter limit values.Menu used to turn the calibration due alarm on or off and to set thecalibration due alarm time. The calibration due alarm is triggered if aPress or to change the setting on the top line, press orto select another line and use the numeric entry screen to enterthe calibration due value in hours.TemperatureManual Temp ValueDefault value or lastentered valuethe temperature.Menu used to select the temperature units.Temperature Calibrationbuilt in to an electrode), to be adjusted by the operator.Menu used to select the source of the temperature measurement.<strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>11
COND Channel Menuresistivity measurements and calibrations.Main Setup Menu 2nd Level 3rd Level Menu Options Menu DescriptionCOND ChannelMethodList of MethodsMode and SettingsMeasure ModeMenu used to select the displayed measurement mode.Auto ( )– Press to take a measurement. When themeasurement is stable, it is locked on the display untilisRead Typepressed again.Continuous – The measurement is constantly updated on thedisplay and stabilizing or readymeasurement stability.Timed – Measurements are taken at a set time interval. To enterthe time interval, highlight pressto highlight theCell TypeTDS Factor (TDS mode)Type (Salinity mode)Ref Temp.Temp. Comp.Default value orlast entered valueDefault value orlast entered valuehours (HH), minutes (MM) or seconds (SS), press f3 (edit) and usethe numeric entry screen to change the values.Menu used to set the type of conductivity cell used as standard orcell. The nominal cell constant is used during automatic conductivitycalibration is completed.the value.Menu used to set the type of salinity measurement as practicalMenu used to set the reference temperature for all conductivitymeasurements. All displayed conductivity measurements are reportedat the selected reference temperature.Menu used to select the type of temperature compensation used forall conductivity measurements. The temperature compensation can beTemp. Coeff.Default value orlast entered valueentry screen to set the value.12 <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>
COND Channel Menu (cont.)Main Setup Menu 2nd Level 3rd Level Menu Options Menu DescriptionStabilityvalues is indicated. Smart Stability automatically compensates formeasurement conditions and optimizes the meter response time.AveragingMenu used to turn the averaging function on or off. Automatic Smartautomatically compensates for measurement conditions and optimizesthe meter response time.COND Channel(cont.)Mode and Settings(cont.)Cal Due AlarmOnOffHighOnOffMenu used to turn the limit alarm on or off and to set the limit alarmparameters. The limit alarm is triggered if the measurement goes aboveor to change the setting on each line, press or to selectanother line and use the numeric entry screen to enter limit values.Menu used to turn the calibration due alarm on or off and to set thecalibration due alarm time. The calibration due alarm is triggered if aPress or to change the setting on the top line, press orto select another line and use the numeric entry screen to enterthe calibration due value in hours.TemperatureManual Temp ValueDefault value or lastentered valuethe temperature.Menu used to select the temperature units.Temperature Calibrationbuilt in to an electrode), to be adjusted by the operator.Menu used to select the source of the temperature measurement.<strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>13
Settings MenuMain Setup Menu 2nd Level Menu Options Menu DescriptionSettingsDate / TimeMenu used to turn on or off the data log feature.Menu used to set the date format as day/month/year or month/day/year; enterMenu used to set the language for all displayed meter prompts.Menu used to turn on or off the beep sound made every time a meter key is pressed.Alarm Beep14 <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>
Settings Menu (cont.)Main Setup Menu 2nd Level Menu Options Menu DescriptionStirrerMenu used to turn the stirrer probe on or off and to set the stirrer probe speed.<strong>Star</strong> A215 meters only.Settings (cont.)ContrastMenu used to set the display contrast.Auto Shut OffDefault value or lastentered valuef2 (sample ID) and using the alphanumeric entry screen.View Log MenuStorage and Retrieval chapter for detailed information on using this setup menu.Diagnostics Menudetailed information on using this setup menu.<strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>15
Chapter 4 pH, RmV and ORP CalibrationpH Calibrationsample pH and are one to four pH units apart. Prepare the pH electrode according to the instructions in the electrodeuse guide. Connect the pH electrode and any other electrodes to be used (stirrer probe, ATC probe, referenceNote: In most calibration screens, press f1 (esc) to return to the measurement mode without saving the calibration. f1 (cal) or to highlightpH – Channel and press f2 (select). into the pH buffer.3. When the electrode and buffer are ready, press f3 (start)f3 (start) is pressed andstop stirring once the reading stabilizes. 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; pressf3 (enter) to select the highlighted item and repeat until the value at the measured temperature isii. Press f2 (done)iii. Press f2 (accept) to accept the entered value.5. Press f2 (next) press f3 (cal done) to save and endf2 (accept) to accept the displayed slope value or pressf3 (edit) to access the numeric entry screen, enter the slope value and press f2 (accept). f1 (meas) to proceed to the measurement mode or press f2 (print)data to a printer or computer.<strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>17
Calibration Editing press f3 (cal edit) to edit the calibration points.2. Press or to highlight the calibration point to be edited and press f2 (select).3. Press or to highlight Remeasure, Edit or Delete and press f2 (select). RemeasureEdit is selected, press f3 (edit)f2 (done) and then press f2 (accept). Select another calibration point to edit or press f1 (back).Deletechanges the calibration to a one point calibration, enter the slope using the numeric entry screen.RmV Calibration f1(meas) to proceed to the measurement mode, press f2 (print)the data to a printer or computer or press f3 (cal edit) to edit another calibration point.the instructions in the electrode use guide. Connect the electrode and any other electrodes to be used (stirrer probe,Note: In most calibration screens, press f1 (esc) to return to the measurement mode without saving the calibration. f1 (cal) or to highlightpH – Channel and press f2 (select). place into the standard.3. When the electrode and standard are ready, press f3 (start)f3 (start) is pressed and stop stirring once the reading stabilizes. stabilizing or solid ready icon, anda. Press f2 (accept)Rel Value line.b. Press f3 (edit)Rel Value line.i. Press , , or to highlight a number, decimal point or negative sign; press f3 (enter) toii. Press f2 (done)iii. Press f2 (accept) to accept the entered mV value. log. Press f1 (meas) to proceed to the measurement mode or press f2 (print) to proceed to the measurement18 <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>
ORP CalibrationThe mV reading of an ORP standard is dependent on the ORP electrode reference system, reference material H Hdifferent temperatures.according to the instructions in the electrode use guide. Connect the electrode and any other electrodes to bemode to ORP.Note: In most calibration screens, press f1 (esc) to return to the measurement mode without saving thecalibration. f1 (cal) or tohighlight pH – Channel and press f2 (select). and place into the standard.3. When the electrode and standard are ready, press f3 (start)f3 (start) is pressed and stop stirring once the reading stabilizes. stabilizing or solid ready icon,and press f2 (accept) once the value is stable. calibration log. Press f1 (meas) to proceed to the measurement mode or press f2 (print) to proceed to the<strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>19
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Chapter 5 Conductivity CalibrationAutomatic and Direct Calibrationthat are near the sample conductivity. Prepare the conductivity cell according to the instructions in theon the meter and set the measurement mode to conductivity.Note: For an automatic calibration, the nominal cell constant of the conductivity cell must be entered in the setupmenu before the calibration is performed and <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> 100 μS/cm, 1413 μS/cm and/or 12.9 mS/cmconductivity standards must be used.Note: In most calibration screens, press f1 (esc) to return to the measurement mode without saving the calibration. f1 (cal) orto highlight Conductivity – Channel and press f2 (select). and place into the standard.3. When the conductivity cell and standard are ready, press f3 (start)f3 (start) is pressed and stop stirring once the reading stabilizes. a. Press f2 (accept) to accept the displayed conductivity value.b. Press f3 (edit) to access the numeric entry screen and edit the conductivity standard value.i. Press , , or to highlight a number or decimal point, press f3 (enter) to selectii. Press f2 (doneiii. Press f2 (accept) to accept the entered conductivity value.5. Press f2 (next)f3 (cal done) to savestandard value is accepted. the data to the calibration log. Press f1 (meas) to proceed to the measurement mode or press f2 (print) to<strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>21
Calibration Editing f3 (cal edit) to edit the calibration points.2. Press or to highlight the calibration point to be edited and press f2 (select).3. Press or to highlight Remeasure, Edit or Delete and press f2 (select).RemeasureEdit is selected, press f3 (edit)f2(done) and then press f2 (accept). Select another calibration point to edit or press f1 (back).Delete f1 (meas)to proceed to the measurement mode, press f2 (print)to a printer or computer or press f3 (cal edit) to edit another calibration point.Manual Conductivity Calibration f1 (cal)or to highlight Conductivity – Channel and press f2 (select). place into the standard.3. When the conductivity cell and standard are ready, press f2 (CellK). f3 (edit) to access the numeric entry screen and enter the cell constant of the conductivity cell.a. Press , , or to highlight a number or decimal point, press f3 (enter) to select theb. Press f2 (done) a. Press f2 (accept) to accept the cell constant value and save and end the calibration.b. Press f3 (edit) 22 <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>
Chapter 6 Temperature Calibrationto calibrate the temperature readings taken by the ATC probe. Since the temperature offset calculated during thecalibration is applied to all future temperature measurements, recalibrate if a different ATC probe is used.Temperature calibration is for the calibration of an ATC probe (separate or built in to a pH electrode, ORP electrode orsource icon, set the manual temperature value using the Manual Temp Value menu. The temperature calibration menuis not accessible unless an ATC probe is connected to the meter. .2. Press , , or to highlight pH Channel or COND Channel and press f3 (select).3. Press or to highlight Temperature and press f3 (select). or to highlight Temperature Calibration and press f3 (select).5. Press or to highlight ATCf3 (select). traceable thermometers be used to measure and verify the temperature of the solution. f3 (edit) to access the numeric entry screen and edit the temperature value.a. Press , , or to highlight a number, decimal point or negative sign; press f3 (enter)to select the highlighted item and repeat until the temperature value read by the thermometers isb. Press f2 (done) <strong>Reference</strong> Temp line, the original temperature readby the ATC probe on the ATC readings on the Offset line. Press f2 (accept) f1 (meas) to proceed to the measurement mode or press f2 (print) to proceed to the measurement mode<strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>23
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Chapter 7 Measurementfirst channel can be set to measure pH, mV, RmV (relative mV) or ORP. The second channel can be set to measure Cond(conductivity), TDS, Salinity or Res (resistivity).the measurement mode, press f3 (channel) to scroll through a single measurement display of channel one or channelf3(channel) until the correct modeNote: It is highly recommended that any unused channels not be shown on the meter display while takingmeasurements, since the meter waits for all displayed channels to stabilize before logging the measurement data.Press a second time to unfreeze the display and continue the measurement. Press 2. <strong>Star</strong> A215 meters only to start the measurement. Whenthe sample. Press ready andrecord the applicable measurement parameters and temperature of the sample.measurement changes, so the applicable measurement parameters and temperature of the sampleready. <strong>Star</strong> A215 meters onlyto turn off the stirrer probe. <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>25
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Chapter 8 MethodsThe <strong>Orion</strong> <strong>Star</strong> A215 and <strong>Star</strong> <strong>A325</strong> meters can save up to ten methods per channel and the corresponding calibrationdata for each method, for the fast and easy recollection of different meter setup parameters. The default meter setting isSaving the Current Meter Settings as a New Method .2. Press , , or to highlight pH Channel or COND Channel and press f3 (select).3. Press or to highlight Method and press f3 (select). Current Settings(M101) and the date, time and mode of each method (07/01/11 12:45 pH) if methods have been previously created.5. Press or to highlight Current Settings and press f3 (save). or f2 (accept). aPress f3 (edit) to access the numeric entry screen.b. Press , , or to highlight a number, press f3 (enter) to select c. Press f2 (done)d. Press f2 (accept) Loading an Existing Method .2. Press , , or to highlight pH Channel or COND Channel and press f3 (select).3. Press or to highlight Method and press f3 (select). Current Settings(M101) and the date, time and mode of each method (07/01/11 12:45 pH) if methods have been previously created.5. Press or to highlight the method to be loaded and press f2 (load). <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>27
Editing, Copying or Deleting an Existing Method .2. Press , , or to highlight pH Channel or COND Channel and press f3 (select).3. Press or to highlight Method and press f3 (select). Current Settingsmethods (M101) and the date, time and mode of each method (07/01/11 12:45 pH) if methods have beenpreviously created.5. Press or to highlight the desired method and press f3 (options). a. Press f3 (edit) to access the numeric entry screen.b. Press , , or to highlight a number, press f3 (enter) to select the c. Press f2 (done)d. Press f2 (accept) or to highlight Edit, Copy or Delete and press f2 (accept). Edit is selected – press or to highlight any setup menu parameters that need to bechanged and press f3 (select)f1(back) to return to the list of methods and then press to return to the measurement mode. Copy is selected – press or to highlight a method number that the selected f2 (accept)measurement mode.Delete is selected – press f2 (yes) to delete the method or press f3 (no) to keep the method.28 <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>
Chapter 9 Data Storage and RetrievalData Storage Settingsif the data log is enabled in the setup menu, and to a printer or computer, if a printer or computer is connected to theRead Type Selection .2. Press , , or to highlight pH Channel or COND Channel and press f3 (select).3. Press or to highlight Mode and Settings and press f3 (select). or to highlight Read Type and press f3 (select).5. Press or to highlight Auto, Continuous or Timed and press f3 (select). Timed is selected and the time interval needs to be changed – highlight Timed; press to highlighthours (HH), minutes (MM) or seconds (SS); press f3 (edit) to access the numeric entry screen; use thenumeric entry screen to change the values and press f1 (back) to return to the measurement mode.<strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>29
Computer and Printer Export Settings .2. Press , , or to highlight Settings and press f3 (select).3. Press or to highlight Export Data and press f3 (select). or to highlight Printing and press f3 (select). Press or to highlight On or Off andpress f3 (select). Select On5. Press or to highlight Comm Setup and press f3 (select). Press or to highlight RS232 orUSB and press f3 (select). Select RS232USB or to highlight Data Format and press f3 (select). Press or to highlight Printer orPC (CSV) and press f3 (select). Select PrinterPC (CSV) to or to highlight Comm Config and press f3 (select). Press or to highlight 1200, 2400,4800, 9600, 19200 or 38400 and press f3 (select) f1 (back) and then pressto return to the measurement mode.Data Log Settings .2. Press , , or to highlight Settings and press f3 (select).3. Press or to highlight Data Log and press f3 (select). or to highlight Off or On and press f3 (select).5. Press f1 (back) and then press to return to the measurement mode.30 <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>
Viewing the Calibration Log and Data LogViewing the Calibration Log .2. Press , , or to highlight View Log and press f3 (select).3. Press or to highlight Calibration Log and press f2 (accept). or to highlight pH – Channel or Conductivity – Channel and press f2 (select).5. Press or to highlight pH, RmV or ORP (pH – Channel) or Conductivity, Resistivity, TDS, or Salinity(Conductivity – Channel) and press f2 (select). (07/01/2011 12:45). or to highlight a specific calibration and press f2 (select). Press f2(print) to print the calibration, press f3 (info)only) or press f1 (back) to return to the list of calibrations. to return to the measurement mode.Viewing the Data Log .2. Press , , or to highlight View Log and press f3 (select).3. Press or to highlight Data Log and press f2 (accept). or to highlight pH – Channel or Conductivity – Channel and press f2 (select). (07/01/2011 12:45). or to highlight the data pointand press f2 (select). Press f2 (print) to print the data point or press f1 (back) to return to the list of data points. to return to the measurement mode.<strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>31
Exporting the Data Log to a Computer or Printer .2. Press , , or to highlight View Log and press f3 (select).3. Press or to highlight Data Log and press f2 (accept). or to highlight pH – Channel or Conductivity – Channel and press f3 (select). (07/01/2011 12:45). f3 (options). or to highlight Log Export and press f2 (accept). or to highlight Today, Last 10, Range or Alland press f2 (accept).Today, Last 10 or All is selected – press f2 (yes)Rangei. Press f3 (edit) to display the numeric entry screen.ii. Press , , or to highlight a number, press f3 (enter) to select the highlightediii. Press f2 (done)iv. Press to enter the last data point.v. Press f3 (edit) to display the numeric entry screen.vi. Press , , or to highlight a number, press f3 (enter) to select the highlightedvii. Press f2 (done)viii. Press f2 (accept) and then press f2 (yes) 32 <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>
Clearing the Data Log .2. Press , , or to highlight View Log and press f3 (select).3. Press or to highlight Data Log and press f2 (accept). or to highlight pH – Channel or Conductivity – Channel and press f3 (select). (07/01/2011 12:45). f3 (options). or to highlight Log Clear and press f2 (accept). f2 (yes) 111111 and pressing f2 (accept)f1 (back) and then pressto return to the measurement mode.<strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>33
Interfacing a PrinterInterfacing a Computercalibration data to the printer if the printer option is turned on in the setup menu. Alternatively, measurementsand calibration data can be sent to the data log and calibration log. From the data log and calibration log, theoperator can chose to print a single data log point, a range of data log points or the entire data log.option is turned on in the setup menu. Alternatively, measurements and calibration data can be sent to thedata log and calibration log. From the data log and calibration log, the operator can chose to send a single datalog point, a range of data log points or the entire data log to the computer.A complimentary copy of general data logging software is available for use with the <strong>Orion</strong> <strong>Star</strong> A200 and <strong>Star</strong> A300series meters. This can be found on the CD included with the meter or at www.thermoscientific.com/water.34 <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>
Chapter 10 Customer ServicesMeter Errors and Recommended ActionsErrorOver Range Measurement orMeasurement Out of RangeRecommended Actionsrepeat the self test.Make sure that all of the electrodes are disconnected from the meter (including the reference input),Make sure that all of the electrodes are disconnected from the meter (including the ground input),Repeat the self test. When the meter prompts, press each of the keys one at a time, including theappropriate meter input and the electrode parameters are entered correctly in the setup menu.Make sure that the electrode is connected to the appropriate meter input and the electrodeparameters are entered correctly in the setup menu. Clean the electrode according to the electrode<strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>35
Meter Self Test and CheckoutMeter Self Test .2. Press , , or to highlight Diagnostics and press f3 (select).3. Press or to highlight Self Test and press f2 (accept). and press f2 (yes).5. Press f2 (yes) to start the self test. Accuracy Test Passed, press f2 (next). E2Prom Test Passed, press f2 (next). ) one at a time inany order. When the meter displays Keypad Test Passed, press f2 (next). Self Test Passed. Pressto return to the measurement mode.36 <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>
Meter Checkout (pH) Meter Checkout (Conductivity)Note: Requires the conductivity calibration resistor kit for <strong>Orion</strong> <strong>Star</strong> A series conductivity meters, Cat. No. 1010001,which must be purchased separately.resistors may be used to verify proper meter function by comparing the meter reading to the conductance of theresistor. The conductivity calibration kit verifies proper meter function only. After the meter function is verified, theconductivity cell must be calibrated. Calibrate the cell constant of the conductivity cell according to the meter and cell1. Remove the conductivity cell and all other electrodes from the meter. . can be damaged. <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>37
Electrode Stability Test .2. Press , , or to highlight Diagnostics and press f3 (select).3. Press or to highlight Stability Test and press f2 (accept). or to highlight pH – Channel or Conductivity – Channel and press f2 (next).5. Make sure the electrode or probe to be tested is connected to the channel selected in the previous step andpress f2 (yes). f2 (yes). the display. Stability Test Passed or Stability Test Failed. Press f1 (esc) ormeasurement mode.to return to theMeter Factory Reset .2. Press , , or to highlight Diagnostics and press f3 (select).3. Press or to highlight Factory Reset and press f2 (accept). f2 (yes) to reset the meter. 38 <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>
Meter User ResetAbout MeterAssistance .2. Press , , or to highlight Diagnostics and press f3 (select).3. Press or to highlight User Reset and press f2 (accept). f2 (yes) to reset the meter. .2. Press , , or to highlight Diagnostics and press f3 (select).3. Press or to highlight About Meter and press f2 (accept). 5. Press f1 (back) to return to the diagnostics menu or press to return to the measurement mode.Warranty and Registration<strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>39
Ordering Information<strong>Orion</strong> <strong>Star</strong> A200 Series Benchtop MetersCat. No.STARA2110STARA2115STARA2120STARA2125STARA2126STARA2130STARA2135STARA2136STARA2140STARA2145STARA2146STARA2147STARA2148STARA2150STARA2155STARA2160STARA2165DescriptionStorage SolutionStandard40 <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>
Ordering Information (cont.)<strong>Orion</strong> <strong>Star</strong> A200 and <strong>Star</strong> A300 Series Portable MetersCat. No.STARA2210STARA2215STARA2220STARA2225STARA2230STARA2235STARA3210STARA3215STARA3220STARA3225STARA3230STARA3235STARA3240STARA3245STAR<strong>A325</strong>0STAR<strong>A325</strong>5STARA3260STARA3265STARA3290STARA3295Description<strong>Star</strong> A221 pH Portable Meter<strong>Star</strong> A222 Conductivity Portable Meter<strong>Star</strong> A223 RDO/DO Portable Meter<strong>Star</strong> A321 pH Portable Meter<strong>Star</strong> A322 Conductivity Portable Meter<strong>Star</strong> A323 RDO/DO Portable Meter<strong>Star</strong> <strong>A325</strong> pH/Conductivity Portable Meter<strong>Star</strong> A Meter Armor<strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>41
Ordering Information (cont.)Cat. No.STARA-BEASTARA-HBSTARA-CSDescription<strong>Orion</strong> <strong>Star</strong> A Series Accessories and Electrodes<strong>Orion</strong> <strong>Star</strong> A Series Portable Hard Carrying CaseSTARA-ARStorage Sleeve and one Conductivity Cell and DO Probe HolderSTARA-ESPHseparately)STARA-ESCD <strong>Orion</strong> <strong>Star</strong> A Series Conductivity Cell and DO Probe Holder for Meter Armor1010003 8102BNUWP8302BNUMD8157BNUMD8107UWMMD927005MD927007MD9179BNMD9180BNMD9512HPBNWP9609BNWP8611BNWP013005MD013010MD013020MD013025MD013016MD083005MD083010MD083025MD086030MD087010MD087020MD087030MDROSS Glass Refillable pH/ATC TriodeStainless Steel ATC Probe096019 42 <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>
Chapter 11 Meter ComplianceNotice of ComplianceWEEE Compliancethe recyclers in your country, and information on <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> products that may assist the detection of<strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>43
Declaration of ConformityManufacturer:Address:<strong>Thermo</strong> Fisher <strong>Scientific</strong> Inc.Ayer Rajah CrescentSingaporeHereby declares that the following products:Benchtop Meters<strong>Orion</strong> <strong>Star</strong> A211 pH<strong>Orion</strong> <strong>Star</strong> A212 Conductivity<strong>Orion</strong> <strong>Star</strong> A213 RDO/DO<strong>Orion</strong> <strong>Star</strong> A215 pH/ConductivityPortable Meters<strong>Orion</strong> <strong>Star</strong> A221 pH<strong>Orion</strong> <strong>Star</strong> A222 Conductivity<strong>Orion</strong> <strong>Star</strong> A223 RDO/DO<strong>Orion</strong> <strong>Star</strong> A321 pH<strong>Orion</strong> <strong>Star</strong> A322 Conductivity<strong>Orion</strong> <strong>Star</strong> A323 RDO/DO<strong>Orion</strong> <strong>Star</strong> <strong>A325</strong> pH/ConductivityEquipment Class:Measurement, control and laboratoryConforms with the following directives and standards:EN61326-1:2006Electromagnetic Compatibility (EMC Directive)EN61010-1:2001Safety StandardsUL61010-1:2004 CAN/CSA C22.2 No. 61010-1-04QA/Regulatory ManagerSingapore44 <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>
Meter SpecificationsMeter Operating ConditionsOperating Ambient Temperature Operating Relative HumidityStorage TemperatureStorage Relative HumidityPollution Degree 2OvervoltageWeightSizeRegulatory and SafetyShock and VibrationWarranty3 year meter replacementUniversal Power Adapter Operating ConditionsOperating Ambient Temperature Operating Relative HumidityStorage TemperatureStorage Relative HumidityPollution Degree 2Overvoltage<strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>45
Meter Parameter SpecificationspHRangeResolutionRelative AccuracyCalibration PointsmV/RmVRangeResolutionRelative Accuracy HORP ModeConductivityRangeResolutionRelative Accuracy<strong>Reference</strong> TemperatureTemperature CompensationCompatible Cell ConstantsResistivityRangeResolutionRelative AccuracySalinityTypeRangeResolutionRelative Accuracy46 <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>
TDSRangeResolutionRelative AccuracyTDS Factor RangeTemperature MeasurementRangeResolutionRelative AccuracyOffset CalibrationData LoggingInputsTemperature Probe or ATC ProbeProbeOutputPowerAC Adapter1 pointDelete individual points, group of points or all<strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>47
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Appendix 1 Advanced Meters FeaturesAutomatic pH Buffer Recognition Featurereading of the pH electrode in the buffer to recognize and display the buffer value at the measured temperature.the buffer in order for the meter to automatically recognize the buffer.USA pH Buffer SetDIN pH Buffer SetBuffer mV Range Buffer mV Range Testing a pH Electrode for Automatic Buffer Recognitionbuffer, and therefore verify that the pH electrode in use is capable of performing automatic buffer recognition,1. Set the measurement mode to mV. Prepare the pH electrode according to the instructions in the pHelectrode user guide. measurements are displayed by the meter. that the measurement is stable. pH electrode are in the correct ranges, the pH electrode is capable of performing automatic buffer recognition.be manually entered during a pH calibration.<strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>49
Electrode Condition IconThe electrode condition icon indicates the performance of the pH electrode, based on the last saved calibrationand electrode measurement stability.IconpH Electrode Definition of Icontroubleshoot the electrode.50 <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>
Multipoint Calibration Curve Featurethe data. pH values for samples are calculated according to the segment that their potential values fall into. ThoseThe displayed slope is an average slope of the separate segments. The slope may be outside the range normally<strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>51
Conductivity Temperature Compensation and <strong>Reference</strong> TemperatureSolution (25 °C to 50 °C) Temperature Coefficient (% / °C) 2.12Dilute Ammonia 1.32Sugar SyrupConductivity and Total Dissolved Solids (TDS)inorganics in a solution. The dissolved inorganics carry a current that is measured by the conductivity probe. SinceConductivity Automatic Calibrationentered in the setup menu.52 <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>
Table of Conductivity Standard Values vs. TemperatureCat. No.01100501100510011006011006100110070110071001100910 011008Temperature (°C)ConductivityStandard(mS/cm)ConductivityStandard(mS/cm)ConductivityStandardConductivityStandardConductivityStandard 1 2 3 5 11 12 111 13 15 122 125 1251 133 21 22 12.12 1331 23 25 <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>53
Table of Conductivity Standard Values vs. Temperature (cont.)Cat. No.01100501100510011006011006100110070110071001100910 011008 13.35 153 1552 31 11232 33 35 132.5 15.35 121 123 125 131 212 215 151 222 54 <strong>Thermo</strong> <strong>Scientific</strong> <strong>Orion</strong> <strong>Star</strong><strong>Star</strong> A215 Benchtop and <strong>Star</strong> <strong>A325</strong> Portable pH/Conductivity Meter <strong>Reference</strong> <strong>Guide</strong>
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Water Analysis InstrumentsNorth America166 Cummings CenterBeverly, MA 01915 USAToll Free: 1-800-225-1480Tel: 1-978-232-6000info.water@thermo.com9 0 0 1 : 2 0 0 8NetherlandsTel: (31) 033-2463887info.water.uk@thermo.comIndiaTel: (91) 22-4157-8800wai.asia@thermofisher.comJapanTel: (81) 045-453-9175wai.asia@thermofisher.comChinaTel: (86) 21-68654588wai.asi@thermofisher.comSingaporeTel: (65) 6778-6876wai.asia@thermofisher.comAustraliaTel: (613) 9757-4300in Australia (1300) 735-296InfoWaterAU@thermofisher.comwww.thermoscientific.com/water© 2011 <strong>Thermo</strong> Fisher <strong>Scientific</strong> Inc. All rights reserved.68X576705 RevA 10-11