Thermo Scientific Orion Dual Star User Manual
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Thermo Scientific Orion Dual Star User Manual

Ph/ise dual channel benchtop meter
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Thermo Scientific Orion
Dual Star
pH/ISE Dual Channel Benchtop Meter
255100-001 • Revision C • June 2015

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Summary of Contents for Thermo Scientific Orion Dual Star

  • Page 1 Thermo Scientific Orion Dual Star pH/ISE Dual Channel Benchtop Meter 255100-001 • Revision C • June 2015...
  • Page 2 ™ for Ammonia in Water and Wastewater, Fluoride in Water and Wastewater, Nitrate in Water and Wastewater, and pH of Water and Wastewater. These technical notes provide step-by-step illustrated instructions for performing common measurements on the Orion Dual Star meter.

  • Page 3: Table Of Contents

    Table of Contents Section 1 ........................6 Meter Introduction ......................6 Meter Overview ..........................6 Redesigned Orion Dual Star Meters .................. 7 Meter Packing List ........................7 Intended Use ..........................7 Section 2 ........................8 Meter Basics ......................... 8 Using the Universal Power Adapter ..................... 8 Attaching the Electrode Stand and Holder ...................
  • Page 4 RmV Calibration Procedure ....................41 RmV Measurement Procedure ..................42 ORP Calibration Hints ...................... 42 ORP Calibration Procedure ....................43 ORP Measurement Procedure ..................44 Temperature Calibration and Measurement ................45 Temperature Calibration Procedure ................. 45 Section 5 ........................46 Methods ........................
  • Page 5 User Reset ........................74 Factory Configuration ....................... 74 About Meter ........................74 Electrode Condition Icon ....................75 Assistance ..........................75 Warranty ............................ 75 Meter Error Codes ........................76 Over Range Measurements ..................... 76 Notice of Compliance ......................... 78 WEEE Compliance ........................78 Declaration of Conformity ......................

  • Page 6: Section 1

    Data Features The Orion Dual Star meter can save up to 10 calibrations per channel and 1000 data points in the meter data log. A graph of the calibration points with slope can be viewed on the meter display and printed.

  • Page 7: Redesigned Orion Dual Star Meters

    • Meter test certificate • Each Orion Dual Star meter is fully tested and certified by Thermo Fisher Scientific and a certificate of calibration is included with each meter. For specific meter and kit contents, refer to the Ordering Information...

  • Page 8: Section 2

    A universal power adapter (Catalog Number 1010003) with US, EU, UK and China plug plates is included with the Orion Dual Star pH/ISE benchtop meters. This universal power adapter is specifically for use with Orion Dual Star benchtop meters. Use of other power adapters can damage the meter and void the warranty.

  • Page 9: Attaching The Electrode Stand And Holder

    A weighted base (Catalog Number STARA-HB) is also available to support the stand without attachment to the meter. Older style Orion Dual Star meters can be used with this electrode stand, but require additional purchase of the weighted base (Catalog Number STARA-HB).

  • Page 10: Using The Electrode Holder

    Immediately remove any spilled substance from the meter using the proper cleaning procedure for the type of spill. Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...

  • Page 11: Meter Components

    Meter Basics Section 2 Meter Components BNC Inputs Channel Number Designations Dual Channel Display Keypad Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...

  • Page 12: Meter Connections

    RS232 – Input for the RS232 cable, used to connect the meter to a printer or computer. Ground – Input for a ground wire with a standard pin-tip connector. Power – Input for the universal power adapter that is included with the meter. Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...

  • Page 13: Channel 1 And Channel 2 Inputs

    6. To connect a computer to the meter, connect the USB computer cable to the USB inputs on the meter and computer or connect the RS232 computer cable, Catalog Number 1010053, to the RS232 inputs on the meter and computer. Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...

  • Page 14: Meter Keypad

    The  key will loop through a list, so the meter will go to the first item on the list after scrolling past the last item on the list. Press to enter a value of three (3) when using the numeric keypad. Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...

  • Page 15: Alphanumeric Keypad

    For example, enter the letter a by pressing the 2 key five times (2 → A → B → C → a). The meter will automatically advance to the next digit when no keys are pressed for three seconds. Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...

  • Page 16: Meter Display

    Electrode Serial Number (Single Channel Display Only) – Shows the operator assigned electrode serial number. To change the electrode serial number, refer to Setup Menu section. Measurement Value – Displays the current electrode reading based on the last saved calibration. Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...
  • Page 17 Function – Displays the action that will be done when the f2 key is pressed. f3 Function – Displays the action that will be done when the f3 key is pressed. Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...

  • Page 18: Section 3

    DD/MM/YYYY to display the date as day/month/year and press the f2 (accept) key. d. Once all of the time and date settings are entered, press the f3 (next) key to save the settings and proceed to the next EZ Startup menu. Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...
  • Page 19 Press the ▲ / ▼ keys to highlight Auto-Read, On Ready, At Time Intervals, Continuous, Value Change In Measurement or Timed Reading as the read type and press the f2 (accept) key to save the setting. Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...
  • Page 20 Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...
  • Page 21 7. Press the f2 (measure) key to save the EZ Startup menu settings and proceed to the measurement mode or press the f1 (back) key to edit any of the EZ Startup settings. Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...

  • Page 22: Setup Menu

    +/- key as required and press the f2 (accept) key. 4. Press the f1 (back) key to return to the list of setup submenus. 5. Press the f1 (back) key to return to the measurement mode. Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...

  • Page 23: Channel 1 And Channel 2 Setup Menus

    Press the f3 (clear) key to delete any of the numbers or letters. Once the serial number is entered, press the f2 (accept) key. Refer to the meter pullout guide for the location of the letter keys on the numeric keypad. Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...
  • Page 24 ▲ / ▼ keys to highlight Temperature Unit, press the f2 (accept) key, press the ▲ / ▼ keys to highlight Celsius or Fahrenheit and press the f2 (accept) key. Once all of the temperature settings are entered, press the f1 (back) key. Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...
  • Page 25 Read Type Press the ▲ / ▼ keys to highlight Read Type and press the f2 (select) key. Press the ▲ / ▼ keys to highlight Auto-Read, On Ready, At Time Intervals, Continuous, Value Change In Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...
  • Page 26 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 Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...
  • Page 27 Chapter 5 Methods. Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...

  • Page 28: Instrument Parameters Setup Menu

    Printer On/Off – Press the ▲ / ▼ keys to highlight Printer On/Off and press the f2 (select) key. To enable communication to a printer, press the ▲ / ▼ keys to Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...

  • Page 29: Log View

    To export the data log to a computer or printer or to clear the data log, press the f3 (options) key and select Log Export or Log Clear. Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...
  • Page 30 Backlight – Press the ▲ / ▼ keys to highlight Backlight and press the f2 (select) key. • Press the ▲ / ▼ keys to set the backlight to Off, 1 (lowest setting), 2, 3, 4 or 5 (highest setting) and press the f2 (accept) key. Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...
  • Page 31 E2Prom Test Passed, press the f2 (next) key. The meter will perform a keypad test. Press each of the blinking keys shown on the display in the order that they are shown. Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...
  • Page 32 Language Press the ▲ / ▼ keys to highlight Language and press the f2 (select) key. Press the ▲ / ▼ keys to highlight English, Español, Deutsch, Français or Italiano and press the f2 (accept) key. Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...

  • Page 33: Autosampler Setup Menu

    4. The meter will prompt for the new password. Enter a new password using the alphanumeric keypad and press the f2 (accept) key. EZ Startup Setup Menu For instructions on navigating this menu, refer to the EZ Startup Menu section. Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...

  • Page 34: Section 4

    S E C T I O N 4 The Orion Dual Star meter can perform a one to six point pH calibration, a two to six point ISE (concentration) calibration, a one point ORP calibration and a one point temperature calibration.

  • Page 35: Ph Calibration Procedure (1 To 6 Points)

    Press the f1 (cal edit) key to edit the calibration points. Press the ▲ / ▼ keys to highlight the calibration point to be edited and press the f2 (select) key. Press the ▲ / ▼ keys to highlight Remeasure, Edit or Delete and press the f2 (select) key. Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...

  • Page 36: Ph Measurement Procedure

    6. Repeat steps 2 through 5 for all of the samples. 7. When all of the samples have been measured, store the electrode(s) according to the instructions in the electrode user guides. Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...

  • Page 37: Ise Calibration And Measurement

    5. Wait for the concentration value to stop flashing. Use the numeric keypad and decimal key to enter the concentration of the standard at the measured temperature. Press the f3 (clear) key to delete any digits. Once the concentration value is correct, press the f2 (accept) key. Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...
  • Page 38 Press the ▲ / ▼ keys to highlight another calibration point to be edited and press the f2 (select) key or press the f1 (back) key to return to the calibration summary. 8. Proceed to the ISE Measurement Procedure section. Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...

  • Page 39: Ise Measurement Procedure

    6. Repeat steps 2 through 5 for all of the samples. 7. When all of the samples have been measured, store the electrode(s) according to the instructions in the electrode user guides. Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...

  • Page 40: Mv Measurement And Rmv And Orp Calibration And Measurement

    7. Repeat steps 2 through 6 for all of the samples. 8. When all of the samples have been measured, store the electrode(s) according to the instructions in the electrode user guides. Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...

  • Page 41: Rmv Calibration Hints

    The meter will automatically proceed to the measurement mode. b. Press the f1 (escape) key to return to the measurement mode without saving the calibration. 7. Proceed to the RmV Measurement Procedure section. Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...

  • Page 42: Rmv Measurement Procedure

    220 mV at 25 °C. The Orion ORP standard is stable and will not change over time, so it is an ideal standard for any ORP measurement system. The Orion Dual Star meter offers a simple, automatic calibration to the E value in the ORP mode when using Orion ORP electrodes and standard.

  • Page 43: Orp Calibration Procedure

    The meter will automatically proceed to the measurement mode. b. Press the f1 (escape) key to return to the measurement mode without saving the calibration. 7. Proceed to the ORP Measurement Procedure section. Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...

  • Page 44: Orp Measurement Procedure

    6. Repeat steps 2 through 5 for all of the samples. 7. When all of the samples have been measured, store the electrode(s) according to the instructions in the electrode user guides. Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...

  • Page 45: Temperature Calibration And Measurement

    MAN as the temperature source icon, refer to the Temperature Input menu for instructions on how to set the manual temperature value. Do not use the Temperature Calibration menu. Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...

  • Page 46: Section 5

    S E C T I O N 5 The Orion Dual Star meter can save up to ten methods on each channel and the corresponding calibration data for each method, for the fast and easy recollection of different meter setup parameters.

  • Page 47: Saving The Current Meter Settings As A New Method

    5. Press the f2 (yes) key to load the method or press the f3 (no) key to retain the previous settings. 6. The meter will automatically proceed to the measurement mode. In the measurement mode, the meter will display the method number that was loaded (i.e. M102). Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...

  • Page 48: Editing Or Printing An Existing Method

    4. Press the ▲ / ▼ keys to highlight the method that will be copied press the f3 (options) key. 5. Enter the current password (default password is 111111111) and press the f2 (accept) key. 6. Press the ▲ / ▼ keys to highlight Copy and press the f2 (accept) key. Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...

  • Page 49: Deleting An Existing Method

    6. Press the ▲ / ▼ keys to highlight Delete and press the f2 (accept) key. 7. Press the f2 (yes) key to delete the method or press the f3 (no) key to retain the previous settings. 8. The meter will automatically proceed to the measurement mode. Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...

  • Page 50: Section 6

    Incremental Techniques S E C T I O N 6 The Orion Dual Star meter has preset methods for single known addition, single known subtraction, double known addition and double known subtraction. • When performing incremental techniques, the sample concentration must be known within an order of magnitude so the increment may be correctly chosen and the sample and standard must be volumetrically determined.

  • Page 51: Electrode Id And Slope For Incremental Techniques

    Oxide (NO Bromide Carbon -59.16 +59.16 Dioxide (CO Iodide Monovalent -59.16 +59.16 Cation (X Cyanide Divalent -59.16 +29.58 Cation (X Sodium Monovalent +59.16 -59.16 Anion (X Potassium Divalent Anion +59.16 -29.58 Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...

  • Page 52: Single Known Addition

    The total volume includes the sample volume, ISA volume and diluting agent volume, but not the standard volume. 8. Use the numeric keypad and decimal key to enter the concentration of the standard and press the f2 (accept) key. Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...
  • Page 53 To perform a single known addition and enter new values, press the f3 (no) key. To end the incremental technique and return to the measurement mode, press the f1 (escape) key. Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...

  • Page 54: Double Known Addition

    11. Add the first increment of standard to the sample and press the f2 (yes) key. 12. Wait for the reading to stabilize. When the reading is stable, press the f2 (yes) key. Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...
  • Page 55 To perform a double known addition and enter new values, press the f3 (no) key. To end the incremental technique and return to the measurement mode, press the f1 (escape) key. Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...

  • Page 56: Single Known Subtraction

    7. Use the numeric keypad and decimal key to enter the total volume, in mL, and press the f2 (accept) key. The total volume includes the sample volume, ISA volume and diluting agent volume, but not the standard volume. Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...
  • Page 57 To perform a single known subtraction and enter new values, press the f3 (no) key. To end the incremental technique and return to the measurement mode, press the f1 (escape) key. Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...

  • Page 58: Double Known Subtraction

    9. Rinse the electrode (ATC probe, stirrer probe and reference electrode, if applicable) with distilled water, blot dry with a lint-free tissue and place the electrode(s) into the sample. When the electrode and sample are ready, press the f2 (next) key. Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...
  • Page 59 To perform a double known subtraction and enter new values, press the f3 (no) key. To end the incremental technique and return to the measurement mode, press the f1 (escape) key. Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...

  • Page 60: Section 7

    5. The Orion Dual Star meter can be connected to a computer or a printer, but not both at the same time. If communication to a printer is enabled in the setup menu, communication to a computer will automatically be disabled.
  • Page 61 1000 data log points are filled. Once all of the data log settings are entered, press the f1 (back) key. 7. Once all of the exporting settings are entered, press the f1 (back) key until the meter returns to the measurement mode. Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...

  • Page 62: Viewing The Calibration Log And Data Log

    7. Press the f1 (back) key twice to return to the measurement mode. Viewing the Data Log The Orion Dual Star meter saves up to 1000 points of data and assigns a log number to each data point. The read type of the displayed channel or channels determines when measurements are exported to the data log.
  • Page 63 Enter the password using the alphanumeric keypad and press the f2 (accept) key. The default password is 111111111. Press the f1 (back) key to return to the list of data points. 5. Press the f1 (back) key twice to return to the measurement mode. Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...

  • Page 64: Interfacing A Printer

    The baud rate of the Orion Dual Star meter can be set to 1200, 2400, 4800, 9600, 19200 or 38400 for communication to different printers. The fixed meter settings are number of bits = 8, stop bits = 1 and parity = none.

  • Page 65: Meter Software Upgrade

    1. Disconnect the power adapter from the meter. 2. Connect the USB cable that is packaged with the Orion Dual Star meter to the USB input on a computer. 3. Connect the other end of the USB cable to the USB input on the Orion Dual Star meter.

  • Page 66: Section 8

    Connector Com 1 Port (to Orion Dual Star meter) 1. Select a location for the system and unpack the autosampler and Orion Dual Star meter components. Prepare the autosampler according to the autosampler user guide. 2. Connect the meter to the autosampler using the RS232 interface cable. Connect the 2.5 mm stereo jack end of the cable to the RS232 input on the meter.
  • Page 67 Section 8 Note: The printer must have a 9600 baud rate to be connected to the autosampler. The Orion Star series printer, Catalog Number 1010006, is recommended for use with the Orion Dual Star meter and autosampler. 4. Prepare and install the electrodes. Prepare the electrodes according to the electrode user guides.

  • Page 68: Autosampler Setup Menu

    Calibration – Press the ▲ / ▼ keys to highlight Calibration and press the f2 (select) key. • Press the ▲ / ▼ keys to highlight On or Off to turn the calibration function for the autosampler on or off and press the f2 (accept) key. Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...
  • Page 69 ID and add a sequential number after it. o Once all of the sample settings are entered, press the f1 (back) key. Once all of the autosampler settings are entered, press the f1 (back) key. • Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...

  • Page 70: Running The Autosampler

    The method that was selected for the previous autosampler run will be used for the next run, unless the operator changes the method in the autosampler setup menu. Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...

  • Page 71: Autosampler Error Messages

    – within the United States call 1-800-225-1480 and outside the United States call +1-978-232-6000 or fax +1-978-232-6031. For additional product information, contact your local authorized dealer, local Thermo Scientific Orion technical sales representative or contact us using the Water and Laboratory Products (WLP) information on the page back of this manual.

  • Page 72: Section 9

    5. The meter will perform the stability test and show the mV per minute drift and noise on the display. 6. Press the f1 (escape) key to return to the measurement mode. Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...

  • Page 73: Meter Self Test And Checkout

    3. In the measurement mode, the meter should read a steady 0.0 mV ± 0.2 mV. If the meter does not read a steady 0.0 mV ± 0.2 mV with the BNC shorting caps attached to the BNC inputs, contact Technical Support. Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...

  • Page 74: User Reset

    4. Press the f1 (back) key to return to the troubleshooting settings, press the f1 (back) key to return to the instrument parameter settings and press the f1 (back) key to return to the measurement mode. Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...

  • Page 75: Electrode Condition Icon

    – within the United States call 1-800-225-1480 and outside the United States call +1-978-232-6000 or fax +1-978-232-6031. For additional product information, contact your local authorized dealer, local Thermo Scientific Orion technical sales representative or contact us using the Water and Laboratory Products (WLP) information on the page back of this manual.

  • Page 76: Meter Error Codes

    The printer may be out of paper, the printer paper may be jammed or there may be another printer error causing the printer not to be ready. Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...
  • Page 77 Thermo Scientific ORP standard was used. Clean the electrode according to the electrode user guide. Re-calibrate the electrode with fresh ORP standard.

  • Page 78: Notice Of Compliance

    Further information on compliance with these directives, the recyclers in your country, and information on Thermo Scientific Orion products that may assist the detection of substances subject to the RoHS Directive are available by contact us using the Water and Laboratory Products (WLP) information on the back page of this manual.

  • Page 79: Declaration Of Conformity

    Orion Dual Star pH/ISE Benchtop Meter is rated 100 to 240 VAC, 50/60 Hz, 0.5A Equipment Class: Measurement, control and laboratory Orion Dual Star meters are EMC Class A Conforms with the following directives and standards: EN61326-1:2013 Electromagnetic Compatibility (EMC Directive)

  • Page 80: Real Time Clock Battery Maintenance

    Real Time Clock Battery Maintenance The Orion Dual Star meter uses an internal BR-1225 type, 3 V lithium coin cell battery for real time clock operation. If the real time clock function is lost, the battery needs to be replaced.

  • Page 81: Ordering Information

    (475 mL), 810199 ROSS pH buffer and solution kit, electrode stand, USB cable, universal power supply, literature & test certificate Orion Dual Star pH/ISE benchtop meter pH & fluoride kit with 9609BNWP Orion fluoride ion selective electrode, 8172BNWP ROSS Sure-Flow glass-body pH electrode,...
  • Page 82 810001 ROSS pH electrode storage solution, 475 mL 910001 Standard pH electrode storage solution, 475 mL 910168 Orion pH 1.68 buffer, 475 mL Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...
  • Page 83 Orion 1000 ppm sodium standard, 475 mL 841111 Orion sodium ionic strength adjuster (ISA), 475 mL Visit www.thermoscientific.com/water for a complete listing of all available Thermo Scientific Orion meters, electrodes, solutions and accessories. Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...

  • Page 84: Meter Specifications

    Section 9 Customer Services Meter Specifications Orion Dual Star pH/ISE Benchtop Meter Operating Conditions Operating Ambient Temperature 5 to 45 °C Operating Relative Humidity 5 to 85%, non-condensing Storage Temperature -20 to 60 °C Storage Relative Humidity 5 to 85%, non-condensing...
  • Page 85 ORP electrode or ion selective electrode (ISE) Pin Tip (2) Reference electrode Sensor Inputs 8 pin MiniDIN (2) ATC temperature probe Stirrer Jack Orion Star series stirrer probe Outputs Ports USB, RS232 Thermo Scientific Orion Dual Star pH/ISE Benchtop Meter User Manual...

  • Page 86: Advanced Meter Features

    S E C T I O N 1 0 Multipoint Calibration Curve Feature The Orion Dual Star meter utilizes a point-to-point scheme for multipoint calibrations in both pH and concentration modes. In this technique, straight line segments are drawn between each successive pair of calibration points.

  • Page 87: Automatic Blank Correction Feature

    Section 10 Automatic Blank Correction Feature The Orion Dual Star meter has a feature known as automatic blank correction. In this technique, the meter decides whether blank correction is the best measurement strategy by analyzing the electrode response during a multipoint calibration. A separate blank does not have to be run.

  • Page 88: Error Code E306

    This error occurs during a one or two point calibration if one standard is defined as zero concentration. To clear the error, calibrate the meter without using a zero concentration standard. Orion Dual Star pH/ISE Benchtop Meter User Manual Thermo Scientific...

  • Page 89: Isopotential Point Feature

    To take advantage of the temperature compensation feature for concentration measurements in the Orion Dual Star meter, it is necessary to experimentally determine the isopotential point of the electrode in use. The slope of all electrodes changes with temperature. This is due in fact to the slope term, S, in the Nernst equation.

  • Page 90: Automatic Ph Buffer Recognition Feature

    Advanced Meter Features Automatic pH Buffer Recognition Feature The Orion Dual Star meter is capable of automatically recognizing pH 1.68, 4.01, 7.00, 10.01 and 12.46 buffers or pH 1.68, 4.01, 6.86, and 9.18 buffers during a pH calibration, depending on the pH buffer set that is selected in the setup menu. During a calibration, the meter uses the selected buffer set and the raw mV reading of the pH electrode in the buffer to recognize and display the buffer value at the measured temperature.
  • Page 92 thermoscientific.com/water © 2015 Thermo Fisher Scientific Inc. All rights reserved. Microsoft and Excel are either registered trademarks or trademarks of Microsoft Corporation. All other trademarks are the property of Thermo Fisher Scientific and its subsidiaries. Water and Lab Products North America Germany India Japan...

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