Thermo Orion Aplus Series Instruction Manual
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Thermo Orion Aplus Series Instruction Manual

Benchtop ph and ph/ise meters
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Orion 410A+, 420A+,
520A+, 525A+,
710A+, 720A+,
920A+
Orion Aplus
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Benchtop pH and pH/ISE Meters
I N S T R U C T I O N M A N U A L
Analyze
Detect
Measure
Control
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  • Page 1 Orion 410A+, 420A+, 520A+, 525A+, 710A+, 720A+, 920A+ Orion Aplus ™ Benchtop pH and pH/ISE Meters I N S T R U C T I O N M A N U A L Analyze Detect Measure Control ™ • • •...
  • Page 2 ORION ORP Standard is protected by US Patent 6,350,367. ORION Series A conductivity meters are protected by US Patent 5,872,454. © Copyright 2003, Thermo Electron Corporation. All rights reserved. Question everything, and Analyze. Detect. Measure. Control are trademarks of Thermo Electron Corporation.

  • Page 3: Table Of Contents

    Table of Content Quick Start Guide Orion 410Aplus Quick Start Guide Orion 420Aplus Quick Start Guide Orion 520Aplus Quick Start Guide Orion 525Aplus Quick Start Guide Orion 710Aplus Quick Start Guide Orion 720Aplus Quick Start Guide Orion 920Aplus Chapter I Introduction .
  • Page 4 Chapter VIII Other Measurement Modes ....48 A. Temperature Measurement ....... . .48 B.

  • Page 5: Chapter I Introduction

    Orion Benchtop pH/ISE Meter Instruction Manual Chapter I Introduction Thermo Electron Corporation provides pH and ISE meters for every application from pH measurements to advanced Ion Selective Electrode work. This manual describes the operation and use of the Orion 410Aplus...
  • Page 6 Orion Benchtop pH/ISE Meter Instruction Manual...

  • Page 7: Chapter Ii General Information

    Orion Benchtop pH/ISE Meter Instruction Manual Chapter II General Information Orion 410Aplus, 420Aplus, 710Aplus General Information The Orion 410Aplus is a pH/Temperature Meter, the Orion 420Aplus is a pH/mV/Temperature Meter and the Orion 710Aplus is a pH/ISE mV/Temperature Meter for general laboratory use. These meters feature: (1) a custom LCD display, which simultaneously displays mode, results and temperature;...

  • Page 8: Set Up, Self-Test And Check-Out Procedure

    Orion Benchtop pH/ISE Meter Instruction Manual Chapter III Set Up, Self-Test and Check-Out Procedures A. Orion 410Aplus Set Up and Self-Test NOTE: Use this procedure when the instrument is first received and whenever troubleshooting becomes necessary. 1. Connect BNC shorting cap (Orion 090045) supplied with meter to sensing electrode input.

  • Page 9: Models 420Aplus And 710Aplus Set Up And Self-Test

    Orion Benchtop pH/ISE Meter Instruction Manual B. Orion 420Aplus and 710Aplus Set Up and Self-Test NOTE: Use this procedure when the instrument is first received and whenever troubleshooting becomes necessary. 1. Connect BNC shorting cap (Orion 090045) supplied with meter to sensing electrode input.

  • Page 10: Models 420Aplus And 710Aplus Check-Out Procedure

    Orion Benchtop pH/ISE Meter Instruction Manual C. Orion 420Aplus and 710Aplus Check-Out Procedure 1. Perform the self-test. 2. After completing the self-test the meter will be in MEASURE mode. The legend MEASURE will be displayed. a. Press mode until the pH mode indicator is displayed. Main display should read a steady 7.00 ±...
  • Page 11 Orion Benchtop pH/ISE Meter Instruction Manual For Orion 420Aplus, the meter is now ready for use with electrodes. Remove the shorting cap. 5. For Orion 710Aplus only With the shorting cap still connected, press mode until the concentration mode indicator is displayed. The display should read 1.00.

  • Page 12: Models 520Aplus And 525Aplus Set Up And Self-Test

    Orion Benchtop pH/ISE Meter Instruction Manual D. Orion 520Aplus and 525Aplus Set Up and Self-Test NOTE: Use this procedure when the instrument is first received and whenever troubleshooting becomes necessary. 1. Connect BNC shorting cap (Orion 090045) supplied with meter to all sensing electrode input(s).

  • Page 13: Models 520Aplus And 525Aplus Check-Out Procedure

    Orion Benchtop pH/ISE Meter Instruction Manual E. Orion 520Aplus and 525Aplus Check-Out Procedure 1. Perform the self-test. 2. For 525Aplus only Press 2nd channel until channel 1 is selected 3. After completing the self-test the meter will be in MEASURE mode. The legend MEAS will be displayed.

  • Page 14: Models 720Aplus And 920Aplus Set Up And Self-Test

    Orion Benchtop pH/ISE Meter Instruction Manual F. Orion 720Aplus and 920Aplus Set Up and Self-Test NOTE: Use this procedure when the instrument is first received and whenever troubleshooting becomes necessary. 1. Connect BNC shorting cap (Orion 090045) supplied with meter to all sensing electrode input(s).

  • Page 15: Models 720Aplus And 920Aplus Check-Out Procedure

    Orion Benchtop pH/ISE Meter Instruction Manual G. Orion 720Aplus and 920Aplus Check-Out Procedure 1. Perform the self-test. 2. After completing the self-test the meter will be in MEASURE mode. The legend MEASURE will be displayed. NOTE: If this is the first time this procedure has been performed the reading should be 7.000 ±...

  • Page 16: Instrument Set Up

    Orion Benchtop pH/ISE Meter Instruction Manual Instrument Set Up The meter can be adjusted to provide you an optimal viewing angle via the flip stand. To adjust the viewing angle, turn the instrument over and place your thumbs on the inside of the stand sides. As you lift the stand, gently push the sides of the stand out.

  • Page 17: Rear Panel And Electrode Connections

    Orion Benchtop pH/ISE Meter Instruction Manual Chapter IV Rear Panel and Electrode Connections A. Rear Panel Inputs (1.) Input Sensing electrode jack. Inputs accept pH, 1 and 2 ion selective, and redox electrodes with BNC connectors. (Input 1 illustrated with shorting cap connected, input 2 illustrated with shorting cap disconnected).

  • Page 18: Electrode Connections

    Orion Benchtop pH/ISE Meter Instruction Manual B. Electrode Connections 1. Attach electrodes with BNC connectors to sensor input by sliding connector onto input, pushing down and turning clockwise to lock into position. Connect reference electrodes with pin tip connectors by pushing connector straight into reference input.

  • Page 19: Chapter V Calibration And Measurement Of Ph

    Orion Benchtop pH/ISE Meter Instruction Manual Chapter V Calibration and Measurement of pH A. General Information on pH Calibration A one, two or multipoint (where available) calibration should be performed using fresh buffers before pH is measured. It is recommended that a two buffer calibration, using buffers that bracket the expected sample range, be performed at the beginning of each day to determine the slope of the electrode.
  • Page 20 Orion Benchtop pH/ISE Meter Instruction Manual Temperature Compensation pH measurements on the Orion 410Aplus are made with Automatic Temperature Compensation. pH measurements on the Orion 420Aplus, 520Aplus, 525Aplus, 710Aplus, 720Aplus, and 920Aplus may be made with either Automatic or Manual Temperature Compensation. For Automatic Temperature Compensation, an ATC probe must be used.

  • Page 21: Orion 410Aplus Ph Calibration And Measurement

    Orion Benchtop pH/ISE Meter Instruction Manual B. Orion 410Aplus pH Calibration and Measurement Autocalibration Autocalibration is a feature of the Orion 410Aplus Meter that automatically recognizes the standard buffers, 4.01, 7.00 and 10.01, within a range of ± 0.5 pH units. Simply select the buffer sequence that best fits your application.
  • Page 22 Orion Benchtop pH/ISE Meter Instruction Manual pH Calibration Procedure 1. Connect electrode(s) to meter. Choose buffers that will bracket the expected sample pH. 2. Rinse electrode(s) and place into buffer. 3. Press mode until CALIBRATE is displayed. 4. The last buffer sequence used will be displayed. Press yes to use this sequence or no to scroll through choices.

  • Page 23: Orion 420Aplus Ph Calibration And Measurement

    Orion Benchtop pH/ISE Meter Instruction Manual C. Orion 420Aplus pH Calibration and Measurement Autocalibration Autocalibration is the feature of the Orion 420Aplus Meter that automatically recognizes three buffers, 4.01, 7.00, and 10.01, within a range of ± 0.5 pH units. Results greater than ± 0.5 pH units from the correct value will trigger an operator assistance code.
  • Page 24 Orion Benchtop pH/ISE Meter Instruction Manual pH Calibration Procedure 1. Connect electrode(s) to meter. Choose buffers that will bracket the expected sample pH. 2. Press mode until the pH mode indicator is displayed. 3. Rinse electrode(s) and place into buffer. 4.

  • Page 25: Orion 520Aplus Ph Calibration And Measurement

    Orion Benchtop pH/ISE Meter Instruction Manual D. Orion 520Aplus pH Calibration and Measurement Autocalibration Autocalibration is the feature of the Orion 520Aplus Meter that automatically recognizes five buffers, 1.68, 4.01, 7.00, 10.01, and 12.46, within a range of ± 0.5 pH units. Results greater than ± 0.5 pH units from the correct value will trigger the prompt NO AUTOBUFFER and require operator intervention.
  • Page 26 Orion Benchtop pH/ISE Meter Instruction Manual pH Calibration Procedure 1. Connect electrode(s) to meter. Choose buffer(s), which is closest to or will bracket the expected sample pH. 2. Press calibrate. Calibrate is displayed. The time and date of the last calibration are displayed.

  • Page 27: Orion 525Aplus Ph Calibration And Measurement

    Orion Benchtop pH/ISE Meter Instruction Manual E. Orion 525Aplus pH Calibration and Measurement Autocalibration Autocalibration is the feature of the Orion 525Aplus Meter that automatically recognizes five buffers, 1.68, 4.01, 7.00, 10.01, and 12.46, within a range of ± 0.5 pH units. Results greater than ± 0.5 pH units from the correct value will trigger the prompt NO AUTOBUFFER.
  • Page 28 Orion Benchtop pH/ISE Meter Instruction Manual pH Calibration Procedure 1. Press 2nd then channel until the correct input channel is selected. 2. Press mode until the pH mode indicator is displayed. 3. Press calibrate. CALIBRATE is displayed. The time and date of the last calibration are displayed.

  • Page 29: Orion 710Aplus Ph Calibration And Measurement

    Orion Benchtop pH/ISE Meter Instruction Manual F. Orion 710Aplus pH Calibration and Measurement Autocalibration Autocalibration is the feature of the Orion 710Aplus Meter that automatically recognizes five buffers, 1.68, 4.01, 7.00, 10.01, and 12.46, within a range of ± 0.5 pH units. Results greater than ± 0.5 pH units from the correct value will trigger an operator assistance code.
  • Page 30 Orion Benchtop pH/ISE Meter Instruction Manual pH Calibration Procedure 1. Connect electrode(s) to meter. Choose buffers that will bracket the expected sample pH. 2. Press mode until the pH mode indicator is displayed. 3. Rinse electrode(s) and place into buffer. 4.

  • Page 31: Orion 720Aplus Ph Calibration And Measurement

    Orion Benchtop pH/ISE Meter Instruction Manual G. Orion 720Aplus pH Calibration and Measurement Autocalibration Autocalibration is the feature of the Orion 720Aplus Meter that automatically recognizes five buffers, 1.68, 4.01, 7.00, 10.01, and 12.46, within a range of ± 0.5 pH units. Results greater than ± 0.5 pH units from the correct value will trigger the prompt NO AUTOBUFFER.
  • Page 32 Orion Benchtop pH/ISE Meter Instruction Manual pH Calibration Procedure 1. Press 2nd then channel until the correct input channel is selected. 2. Press mode until the pH mode indicator is displayed. 3. Press calibrate. CALIBRATE is displayed. The time and date of the last calibration are displayed.

  • Page 33: Orion 920Aplus Ph Calibration And Measurement

    Orion Benchtop pH/ISE Meter Instruction Manual H. Orion 920Aplus pH Calibration and Measurement Autocalibration Autocalibration is the feature of the Orion 920Aplus Meter that automatically recognizes five buffers, 1.68, 4.01, 7.00, 10.01, and 12.46, within a range of ± 0.5 pH units. Results greater than ± 0.5 pH units from the correct value will trigger the prompt NO AUTOBUFFER.
  • Page 34 Orion Benchtop pH/ISE Meter Instruction Manual Channel Selection and Electrode Identification Prior to calibration, select the channel and proper electrode identification. 1. Press 2nd then channel to select the correct channel. The channel in use will be identified in the prompt line. Example: 1-pH. 2.

  • Page 35: Calibration And Measurement Of Concentration

    Orion Benchtop pH/ISE Meter Instruction Manual Chapter VI Calibration and Measurement of Concentration Orion 710Aplus, 720Aplus, 920Aplus A. General Information A one, two, or multipoint calibration should be performed before concentration is measured. It is recommended that a two point standard calibration be performed at the beginning of each day and every time electrodes are changed to determine the slope of the electrode.
  • Page 36 Orion Benchtop pH/ISE Meter Instruction Manual Slope Up to a five point calibration may be performed. The instrument uses a point-to-point calibration scheme. The meter stores, in memory, the different electrode slopes for each portion of the calibration curve. When measuring in a particular region of the curve, the electrode slope for that region is employed in the calculation of sample concentration.

  • Page 37: Orion 710Aplus Concentration Calibration And Measurement

    Orion Benchtop pH/ISE Meter Instruction Manual B. Orion 710Aplus Concentration Calibration and Measurement Concentration Calibration Procedure 1. Press mode until the CONC mode indicator is displayed. 2. Add ionic strength adjuster, or pH adjuster, to the standards and samples as recommended in the appropriate electrode instruction manual.

  • Page 38: Orion 720Aplus Concentration Calibration And Measurement

    Orion Benchtop pH/ISE Meter Instruction Manual C. Orion 720Aplus Concentration Calibration and Measurement Concentration Calibration Procedure 1. The number of the electrode input in use will appear on the prompt line. Example: CH-1. To select a different channel press 2nd then channel.

  • Page 39: Orion 920Aplus Concentration Calibration And Measurement

    Orion Benchtop pH/ISE Meter Instruction Manual D. Orion 920Aplus Concentration Calibration and Measurement Channel Selection and Electrode Identification 1. Securely connect electrodes to either input 1 or 2. The number of the electrode input in use appears directly before the electrode ID in the prompt line.
  • Page 40 Orion Benchtop pH/ISE Meter Instruction Manual Concentration Calibration Procedure 1. Press mode until the concentration mode indicator, CON appears on the display. 2. Add ionic strength adjuster, or pH adjuster to the standards and samples as recommended in the electrode instruction manual. NOTE: If you want to exit this menu, at any time, press 1st then measure.

  • Page 41: Chapter Vii 920Aplus Special Features

    Orion Benchtop pH/ISE Meter Instruction Manual Chapter VII 920Aplus Special Features A. Calibration Edit The calibration edit feature allows you to edit a pH or concentration calibration curve without repeating the entire procedure. This is useful in multipoint calibrations if an entry mistake was made on one of the points. The meter will automatically recalculate all calibration values.
  • Page 42 Orion Benchtop pH/ISE Meter Instruction Manual Cal Edit Prompt Key Press/Action Press 2nd cal edit. then 2. STD 1 OK? The meter displays the current value of standard one. Press yes if okay or no to edit. 3. If no selected: Press 1 or 2 then press yes.

  • Page 43: Incremental Techniques

    Orion Benchtop pH/ISE Meter Instruction Manual B. Incremental Techniques General Information The Orion 920Aplus Meter includes two different incremental techniques: known addition and known subtraction. Both involve adding aliquots of a standard of known concentration to the sample. Single and double incremental techniques can be performed.
  • Page 44 Orion Benchtop pH/ISE Meter Instruction Manual Prompt Key Press/Action Press 2nd then incr tech. 2. 1-ADDN 2-SUBTR Press 1, then yes. 3. KNOWN ADDN The meter verifies your choice. Wait for the next prompt. 4. 1-SINGLE 2-DOUBLE Press 1, then yes. 5.
  • Page 45 Orion Benchtop pH/ISE Meter Instruction Manual Set-up 1. Refer to the appropriate electrode instruction manual for preparation of sensing and reference electrode(s), required solutions (ionic strength adjusters, standards...), and any special requirements. 2. Securely connect electrode(s) to either input 1 or 2. The number of the input in use will appear directly before the electrode ID.
  • Page 46 Orion Benchtop pH/ISE Meter Instruction Manual Electrode interferences should be at a minimum, the effect of the interference may change as the concentration of the ion of interest changes. This situation may also result in high or low electrode slopes. It is possible to reduce some electrode interferences.
  • Page 47 Orion Benchtop pH/ISE Meter Instruction Manual Single Known Subtraction Measurement Procedure In known subtraction, each addition of standard subtracts an increment of the species to be measured. The known subtraction procedure and meter prompts are the same as the known addition procedure except that the meter asks for the reaction ratio.
  • Page 48 Orion Benchtop pH/ISE Meter Instruction Manual Double Incremental Techniques Double incremental techniques allow sample concentration and electrode slope to be determined simultaneously. This eliminates the requirement of performing a calibration or slope check before measurement as required with direct measurement or single incremental techniques. Double incremental techniques are useful for occasional samples or samples with complex matrices.
  • Page 49 Orion Benchtop pH/ISE Meter Instruction Manual Double Known Addition Measurement Procedure For most double known addition analysis, it is recommended that: a. Sample volume be 100 mL. b. The concentration of the standard added be 100 times the expected sample concentration. c.
  • Page 50 Orion Benchtop pH/ISE Meter Instruction Manual Prompt Key Press/Action 13. MEAS’G SAMP+ STD Wait for a stable display, then 1-NA+ REA press yes. YES TO CONTINUE 14. 2ND STD VOLUME? Enter the volume of the second addition. Press yes. 15. 2ND STD ADDED Add the second standard addition to the sample beaker.
  • Page 51 Orion Benchtop pH/ISE Meter Instruction Manual Double Known Subtraction Measurement Procedure In double known subtraction, each addition of standard subtracts an increment of the species to be measured. The procedures and meter prompts are the same as for double known addition except the meter prompts for the reaction ratio.

  • Page 52: Chapter Viii Other Measurement Modes

    Orion Benchtop pH/ISE Meter Instruction Manual Chapter VIII Other Measurement Models A. Temperature Measurement The meters display temperature in the range -5.0 to +105˚C simultaneously with sample results. Whenever an ATC probe is connected, live temperature measurements are displayed in the prompt line. For results greater than 100˚C the tenth digit is deleted.

  • Page 53: Models 420Aplus, 710Aplus Millivolt Measurements

    Orion Benchtop pH/ISE Meter Instruction Manual B. Orion 420Aplus, 710Aplus Millivolt Measurements The Orion 420Aplus and 710Aplus can be used to measure absolute or relative millivolts. The millivolt modes are useful when performing potentiometric titrations or preparing calibration curves. Detailed instructions for any Orion electrode are given in the electrode instruction manual.

  • Page 54: Millivolt Measurements

    Orion Benchtop pH/ISE Meter Instruction Manual C. Orion 520Aplus, 525Aplus, 720Aplus, 920Aplus Millivolt Measurements The Orion 520Aplus, 525Aplus, 720Aplus, and 920Aplus may be used to measure absolute or relative millivolts. These modes may be used for titrations, oxidation/reduction (redox) potential measurements or calibration curves.

  • Page 55: Redox Measurements

    Orion Benchtop pH/ISE Meter Instruction Manual D. Orion 525Aplus, 720Aplus, 920Aplus Redox Measurements Measurements with redox (oxidation-reduction potential) electrode(s) are performed in the millivolt or relative millivolt modes. Perform the following steps 1. Securely connect electrode(s) to input 1 or 2. 2.

  • Page 56: Model 410Aplus Dissolved Oxygen Measurements

    Orion Benchtop pH/ISE Meter Instruction Manual E. Orion 410Aplus Dissolved Oxygen Measurements Dissolved Oxygen measurements are displayed in ppm when the Orion 9708 Dissolved Oxygen Electrode (Orion 970899) is used with the Orion 410Aplus Meter. Perform the following steps to prepare the meter and calibrate the electrode.
  • Page 57 Orion Benchtop pH/ISE Meter Instruction Manual 1. Connect the Orion 9708 to meter and leave electrode mode switch “OFF”. 2. Disconnect ATC probe. NOTE: ATC probe must not be connected to the meter and the meter should be calibrated to pH 7 at 25.0˚C. 3.

  • Page 58: Dissolved Oxygen Measurements

    Orion Benchtop pH/ISE Meter Instruction Manual G. Orion 520Aplus, 525Aplus, 720Aplus Dissolved Oxygen Measurements Dissolved Oxygen measurements are displayed in ppm when the Orion 9708 Dissolved Oxygen Electrode (Orion 970899) is used with the Orion 520Aplus, 525Aplus and 720Aplus and 920Aplus Meters. Perform the following steps to prepare the meter and calibrate the electrode.
  • Page 59 Orion Benchtop pH/ISE Meter Instruction Manual 12. Insert the reservoir (funnel) into a BOD bottle containing enough water to just cover the bottom. Insert the electrode, making sure that the electrode tip is not immersed in the water and does not have water droplets clinging to the outside of the membrane.

  • Page 60: Models 920Aplus Dissolved Oxygen Measurements

    Orion Benchtop pH/ISE Meter Instruction Manual H. Orion 920Aplus Dissolved Oxygen Measurements Dissolved Oxygen measurements are displayed in ppm when the Orion 9708 Dissolved Oxygen Electrode (Orion 970899) is used with the Orion 920Aplus Meter. Perform the following steps to prepare the meter and calibrate the electrode.

  • Page 61: Karl Fischer Titrations

    Orion Benchtop pH/ISE Meter Instruction Manual I. Karl Fischer Titrations A 10 microampere polarizing current is available for Karl Fischer or other polarized electrode titrations. Use the Karl Fischer adapter, Orion 090048. 1. Insert KF electrode pin-tip connector into the KF adapter. Connect the other pin-tip of the electrode into the reference input.

  • Page 62: Use With Accessories

    Orion Benchtop pH/ISE Meter Instruction Manual Chapter IX Use with Accessories A. Use with Printers and Computers The Orion 410Aplus and 420Aplus can send information to a printer or computer using the RS232 port. Orion 520Aplus, 525Aplus, 710Aplus, 720Aplus, and 920Aplus have a bi- directional interface to be used with printers, computers and other serial peripheral devices.
  • Page 63 Orion Benchtop pH/ISE Meter Instruction Manual Use with the 900A Printer When used with the Orion 900A printer, the meter will provide a printed record of results. The 900A printer can be battery operated or connected to line power. Plug the printer directly into the meter using the nine pin D shell connector on the left side of the meter.

  • Page 64: Model 710Aplus Remote Control

    Orion Benchtop pH/ISE Meter Instruction Manual B. Remote Control for Orion 710Aplus The Orion 710Aplus can be remotely controlled from an RS232 communication device or PC. After making the physical connection between your meter and computing device, type rem into your computer to establish communication.
  • Page 65 500 IF INSTR(L$, CHR$(10)) = 0 THEN RETURN: ‘WE ARE NOT DONE TIL WE GET A LINEFEED 510 IF LOGFLAG = 1 AND INSTR(L$, “THERMO ORION”) THEN GOSUB 700 520 IF PHFLAG = 1 THEN GOSUB 600: GOTO 580: ‘2ND TIME READ THE pH VALUE 530 IF INSTR(L$, “mp”) THEN GOSUB 600: GOTO 580: ‘1ST TIME FILTER OUT ECHO...

  • Page 66: Models 520Aplus, 525Aplus, 720Aplus, 920Aplus Remote Control

    Orion Benchtop pH/ISE Meter Instruction Manual C. Remote Control for Orion 520Aplus, 525Aplus, 720Aplus, and 920Aplus The meters can be remotely controlled from a personal computer or other RS232 communication device. After making the physical connection between your meter and computing device, type rem to establish communication.
  • Page 67 Orion Benchtop pH/ISE Meter Instruction Manual Command Function or Meaning hold hold toggle Incremental techniques mode (920Aplus only) meas measure mode change modes millivolt display select options menu print or datalog ready ready function toggle enter remote control function select resolution second key slope slope...
  • Page 68 For Orion 520Aplus, 525Aplus, 720Aplus, and 920Aplus 100 ‘*********************************************************************************** 110 ‘** THIS PROGRAM LOGS ONTO AN THERMO ORION BENCHTOP METER AND EVERY 5 SECONDS 120 ‘** WILL CHECK THE CURRENT pH VALUE BY SENDING A “disp” COMMAND. IF 130 ‘** THE pH VALUE IS ABOVE 5.00, IT WILL SEND A “pr” COMMAND TO REQUEST 140 ‘** A FULL PRINTOUT.

  • Page 69: Use With Model 607 Electrode Switchbox

    Orion Benchtop pH/ISE Meter Instruction Manual D. Use with Orion 607 Electrode Switchbox When the Orion 607 electrode switchbox is connected to the 920Aplus Meter, up to seven electrodes can be used. Up to seven different calibrations will be stored in memory until the user repeats a calibration. 1.

  • Page 70: Use With Strip Chart Recorders

    Orion Benchtop pH/ISE Meter Instruction Manual E. Use with Strip Chart Recorders The Orion 520Aplus, 525Aplus, 720Aplus, and 920Aplus can be used with a strip chart recorder. The audio jack on the rear panel provides an output for a strip chart recorder of absolute millivolts independent of operating mode.

  • Page 71: Troubleshooting

    Orion Benchtop pH/ISE Meter Instruction Manual Chapter X Troubleshooting A. Self-Test The self-test is performed by holding yes down while the meter is being powered on. NOTE: Before starting the self-test securely attach the shorting cap to the electrode input(s). During the self-test the meter will display the number of the test being performed.
  • Page 72 Orion Benchtop pH/ISE Meter Instruction Manual Test Function/Display Sequence TEST #7 Keypad Test Checks that the keypad is functioning properly. During this test, each key must be pressed, one at a time, at the 0 prompt for Orion 410Aplus, 420Aplus and 710Aplus, and PRESS ALL KEYS for Orion 520Aplus, 525Aplus, 720Aplus and 920Aplus.

  • Page 73: Operator Assistance Codes

    Orion Benchtop pH/ISE Meter Instruction Manual B. Operator Assistance Codes Operator Assistance Codes are used to inform the user of an out of range value or meter problem. The following tables outline the operator assistance codes available. The meter has a self-test circuit that verifies proper electronic operation. During self-test a special series of codes, E-1 through E-8 indicate a problem with the meter hardware.
  • Page 74 Orion Benchtop pH/ISE Meter Instruction Manual Table II Operator Assistance Codes Error Code Problem Probable Remedy E-20 out of range 1. If this occurs when electrode(s) pH,mV, are out of solution, code will Rel mV, or conc. disappear when electrode(s) are returned to solution.
  • Page 75 Orion Benchtop pH/ISE Meter Instruction Manual Error Code Problem Probable Remedy E-22 Calibration The millivolts being measured are Std Error the same for two different standards. Check that two different standards or buffers are being used and that the correct one is being measured. 1.
  • Page 76 Orion Benchtop pH/ISE Meter Instruction Manual Error Code Problem Probable Remedy E-27 Data Transfer Error There is a problem in transferring data from the datalogger to a printer or computer. 1. Press any key to acknowledge the error. 2. Check to make sure the printer or other device is securely plugged into the RS232 port on the meter.
  • Page 77 Orion Benchtop pH/ISE Meter Instruction Manual Error Code Problem Probable Remedy 4. Make sure electrode(s) are properly identified, connected and filled. 5. If error persists, measure a standard of known concentration with the same background as the sample to be measured. Adjust the standard concentrations and volumes until results are obtained.
  • Page 78 Orion Benchtop pH/ISE Meter Instruction Manual Error Code Problem Probable Remedy E-32 Blank Error. The meter is unable to calculate a Orion 710Aplus, blank value. This error occurs 720Aplus, during a three or more point and 920Aplus calibration, when one solution has been defined as zero concentration and the actual concentration of the blank is substantially greater than the...

  • Page 79: Meter Operation Problem

    Orion Benchtop pH/ISE Meter Instruction Manual C. Meter Operation Problem Table III – Meter Operation Problem Problem Probable Cause Remedy No Display No power to meter For Orion 410Aplus, 420Aplus, 710Aplus press the power key. For all models, check that the line converter is plugged in securely.
  • Page 80 Orion Benchtop pH/ISE Meter Instruction Manual Problem Probable Cause Remedy Trouble Some electrodes Perform a manual calibration Calibrating in may operate outside Autocalibration the limits of ± 0.5 Buffers used may be pH units. out of specification. Repeat calibration using fresh buffers or from a different lot.
  • Page 81 Orion products. Within the United States call 1.800.225.1480, outside the United States call 978.232.6000 or fax 978.232.6031. In Europe, the Middle East and Africa, contact your local authorized dealer. For the most current contact information, visit www.thermo.com. Service and Repair...

  • Page 82: Chapter Xii Notice Of Compliance

    Orion Benchtop pH/ISE Meter Instruction Manual Chapter XII Notice of Compliance This equipment generates, uses, and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual, may cause interference to radio communications. It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC Rules, which are designed to provide reasonable protection against such interference when operated in a commercial...
  • Page 83 Conducted Susceptibility These Orion products have been manufactured in compliance with the provisions of the relevant Thermo Electron manufacturing and test documents and processes. Further, these documents and processes are recognized as complying with ISO 9000:2000 by QMI, listed as File # 001911.
  • Page 84 Orion Benchtop pH/ISE Meter Instruction Manual Certificate of Conformity...

  • Page 85: Chapter Xiii Instrument Warranty

    Orion Products before returning any product for in-warranty repair or replacement. In the event of failure within the warranty period, Thermo will at the company’s option, repair or replace product not conforming to this warranty. There may be additional charges, including freight, for warranty service performed in some countries.
  • Page 86 Orion Benchtop pH/ISE Meter Instruction Manual Thirty-six months from date of purchase by the user (or forty-two months from date of shipment from Thermo) • Waterproof Meters (Orion 630, 635, 830A, 835A, 260A, 261S, 265A, 266S, 130A, 131S, 135A and 136S), Conductivity Meters (Orion...
  • Page 87 50 °C. “Out-of-Box” Warranty - Should any of the following products fail to work when first used, contact Thermo immediately for replacement. • Orion Solutions, Standards, Reagents, Cables, Ferrules, Tubing, Line adapters, Printers, Software, Cases, Stands, Probe Membranes, AQUAfast ®...
  • Page 88 REPRESENTATION AND WARRANTIES MADE BY ANY PERSON, INCLUDING ITS AUTHORIZED DEALERS, REPRESENTATIVES AND EMPLOYEES OF THERMO WHICH ALTER OR ARE IN ADDITION TO THE TERMS OF THIS WARRANTY SHALL NOT BE BINDING UPON THERMO UNLESS IN WRITING AND SIGNED BY ONE OF ITS OFFICERS.

  • Page 89: Chapter Xiv Ordering Information

    Orion Benchtop pH/ISE Meter Instruction Manual Chapter XIV Ordering Information Orion Description 0410A0 Orion 410Aplus pH/mV/Temperature Meter, 110V. Includes Orion Sure-Flow Combination pH probe. 0410A1 Orion 410Aplus pH/mV/Temperature Meter, 220V. Includes Orion Sure-Flow Combination pH probe. 0420A0 Orion 420Aplus pH/mV/Temperature Meter, 110V. Includes Orion Triode pH/ATC probe.
  • Page 90 Orion Benchtop pH/ISE Meter Instruction Manual Orion Description 0720A3 Orion 720Aplus pH/ISE/mV/Temperature Meter includes electrode holder and stand, 110V wall adapter. 0920A0 Orion 920Aplus pH/ISE/mV/Temperature Meter with incremental techniques and custom vacuum fluorescent display, 110V. Includes Orion combination ROSS electrode, 8102BN. 0920A1 Orion 920Aplus pH/ISE/mV/Temperature Meter with incremental techniques and custom vacuum...
  • Page 91 Electrode Rinse , 25 pk 910001 pH Electrode Storage Solution, 475 mL NOTE: A wide selection of pH, Ion Selective Electrodes and replacement parts are available. Contact Thermo Electron Corporation or your local authorized distributor for more information. Ordering Information...
  • Page 92 Orion Benchtop pH/ISE Meter Instruction Manual...

  • Page 93: Models 410Aplus

    Orion Benchtop pH/ISE Meter Instruction Manual Appendix A Overview of Meter Functions Orion 410Aplus SETUP CALIBRATE MEASURE ready °C timer SETUP: mode RESOLUTION SLOPE PRINT OPTIONS CAL BUFFER OPTION ERROR CODES: E-20 OUT OF RANGE E-21 AUTO BUFFER ERROR E-22 CAL STANDARD ERROR print E-23...
  • Page 94 Orion Benchtop pH/ISE Meter Instruction Manual Primary Key Pad Functions, Orion 410Aplus Press to enter a value during calibration or setup. May also be used to scroll through the setup menu without changing any parameters. Press to cancel or to change to a parameter before entering.

  • Page 95: Appendix B Overview Of Meter Functions

    Orion Benchtop pH/ISE Meter Instruction Manual Appendix B Overview of Meter Functions Orion 420Aplus, 710Aplus SETUP CALIBRATE MEASURE ready bold °C Rel mV Conc SETUP: READY HOLD BEEP AUTOSHUTOFF SLOPE measure RESOLUTION ISOPOINT timer print RESET TIMER INTERVAL REMAINING TIME SET REAL TIME SET DATE mode...
  • Page 96 Orion Benchtop pH/ISE Meter Instruction Manual Displayed when 2nd has been pressed, indicating the meter is ready to perform a second function, cal, timer, setup, or print. ready Displayed when the electrode is stable. READY may be turned on or off in the SETUP menu. hold Displayed when the pH reading is frozen after reaching stability.
  • Page 97 Orion Benchtop pH/ISE Meter Instruction Manual Primary Key Pad Functions, Orion 420Aplus, 710Aplus Press to enter a value during calibration or setup. May also be used to scroll through the setup menu without changing any parameters. Press to cancel or to change to a parameter before entering. measure Press for sample analysis.
  • Page 98 Orion Benchtop pH/ISE Meter Instruction Manual Secondary Key Pad Functions, Orion 420Aplus, 710Aplus All second functions are accessed by first pressing 2nd then pressing one of the following: Press to start calibration. timer Press to start the timer. When the preset time has elapsed the instrument will beep for 1 minute (or until a key is pressed).
  • Page 99 Orion Benchtop pH/ISE Meter Instruction Manual The following parameters are accessed in the setup menu: Code Function Description READY Turning on READY will cause the ready indicator to be displayed when the electrode signal is stable. The default setting is on. HOLD Turning HOLD on will cause the display to freeze during sample measurements when...
  • Page 100 Orion Benchtop pH/ISE Meter Instruction Manual Code Function Description ISOPOTENTIAL Use to change the isopotential point POINT for a particular pH electrode. In pH mode the default value is 7.00. The isopotential point may not be changed in any other mode. NOTE: Setup function 2-3 Isopotential point is only accessible in pH mode.
  • Page 101 Orion Benchtop pH/ISE Meter Instruction Manual Code Function Description SET DATE Sets the current date. When the code 3-4 is displayed in the lower field, the current date (month: day) is displayed in the main field. Press yes, or change the date as needed, then press yes.
  • Page 102 Orion Benchtop pH/ISE Meter Instruction Manual Code Function Description SET PRINT Sets the timed print interval. The maximum print INTERVAL is 23 hours, 59 minutes, and 59 seconds. The minimum print interval is 5 seconds. When the code 5-2 is displayed in the lower field, the current print interval hours will flash in the main display.
  • Page 103 Orion Benchtop pH/ISE Meter Instruction Manual Code Function Description DATALOG Sets the timed datalogger interval. The INTERVAL maximum interval is Interval 23 hours, 59 minutes, and 59 seconds. The minimum interval is five (5) seconds. When the code 6-2 is displayed in the lower field, the current datalogger interval hours are displayed in the main field indicated by an H in the left ▼...
  • Page 104 Orion Benchtop pH/ISE Meter Instruction Manual...

  • Page 105: Appendix C Overview Of Meter Functions Models 520Aplus, 525Aplus, 720Aplus And 920Aplus

    Orion Benchtop pH/ISE Meter Instruction Manual Appendix C Overview of Meter Functions Orion 520Aplus, 525Aplus, 720Aplus, and 920Aplus mode calibrate measure cal edit stability hold resolution slope incr tech channel electrode print activate set temp data log set timer ready date/time standby data/print...
  • Page 106 Orion Benchtop pH/ISE Meter Instruction Manual Key 1 Mode Pressing mode (1) changes the instrument operating mode. The current operating mode designation is displayed to the right of the main display. Key 2 Calibrate Pressing calibrate (2) starts a calibration. The time and date of the last calibration are displayed, then the instrument starts the calibration sequence.
  • Page 107 Orion Benchtop pH/ISE Meter Instruction Manual Key 4 Hold Pressing hold (4) acts as a toggle changing the hold setting. This function freezes the display when the electrode signal is stable. The prompt line verifies your selection then returns to the measure mode. Example: HOLD ON.
  • Page 108 Orion Benchtop pH/ISE Meter Instruction Manual Channel (525Aplus, 720Aplus and 920Aplus only) Press 2nd then channel (5) to change the electrode channel. On the 525Aplus and 720Aplus the channels are designated as CH-1 or CH-2. For the 920Aplus, the channel designation appears before the electrode I.D., for example, 1-pH or 2-F-.
  • Page 109 Orion Benchtop pH/ISE Meter Instruction Manual Key 8 Activate Press activate (8) to start the timer interval. An audible signal will sound at the completion of the timer interval. Activate Timer Once the timer interval has been set, it is easily activated by pressing activate (8).
  • Page 110 Orion Benchtop pH/ISE Meter Instruction Manual Key 9 Set Temp Press set temp (9) to access the set temp function to manually set the temperature. This is used for manual temperature compensation in pH mode and in concentration mode on the Orion 920Aplus. If a temperature probe is in use, the meter will not allow a temperature to be set manually.
  • Page 111 Orion Benchtop pH/ISE Meter Instruction Manual Key +/- Date/Time Setting the Date and Time Press date/time (+/-), then follow the prompts to set the current date & time. Prompt Keypress/Action Press date/time (±) 1. ENTER MONTH Enter the current month, then press yes. 2.
  • Page 112 Orion Benchtop pH/ISE Meter Instruction Manual Key Decimal Point Data/print modes Press the decimal point to set the datalog function and the print mode. See the descriptions below for instructions. Print mode is presented first, then the datalog function. Printing Press data/print modes to select a print option, then follow the prompts: Prompt Keypress/Action...
  • Page 113 Orion Benchtop pH/ISE Meter Instruction Manual Automatic Datalog Function The meters have an internal datalogger that will record and store a maximum of 25 points automatically. The data points remain in memory until cleared. Prompt Keypress/Action Press data/print modes 1. MANUAL PRINT The current print mode is displayed.
  • Page 114 Orion Benchtop pH/ISE Meter Instruction Manual Alarm The Orion 520Aplus, 525Aplus, 720Aplus, and 920Aplus have an alarm function. Separate alarms can be set for each mode and for channels 1 and 2 (on the 525Aplus, 720Aplus and 920Aplus). The alarm limits can be set at the limits of each measuring range, -2.000 to +19.999 pH, -1600.0 to +1600.0 mV, -1999.9 to +1999.9 relative mV, and 0.0 to 19900 for concentration (720Aplus and 920Aplus only).Press 2nd then alarm to...
  • Page 115 Orion Benchtop pH/ISE Meter Instruction Manual Options Press 2nd then options (0) to change the isopotential point, clear or transfer data from the datatlogger, select the autoshutoff feature, or identify the use of a switchbox (920Aplus only) The menu loop is as follows: OPTIONS MENU CHANGE ISO PT? TRANSFER DATA?
  • Page 116 Orion Benchtop pH/ISE Meter Instruction Manual Transfer Data To transfer data from the internal datalogger to a printer or computer press yes in response to the TRANSFER DATA? prompt. While the data is being transferred the prompt line will display DATA TRANSFER. On completion the DATA TRANSFERRED prompt will be displayed followed by the next option in the menu.
  • Page 117 Orion Benchtop pH/ISE Meter Instruction Manual Use of a Switchbox (920Aplus) The 920Aplus stores in memory calibration data for seven channels. Additional channels can be accessed when using the 920Aplus with the Orion 607 electrode switchbox. Press the channel selection switch on the Orion 607.
  • Page 118 Orion Benchtop pH/ISE Meter Instruction Manual Overview of Meter Functions 520Aplus,525Aplus,720Aplus and 920Aplus...

  • Page 119: Appendix D Meter Default

    Orion Benchtop pH/ISE Meter Instruction Manual Appendix D Meter Default pH electrode slope 100.0% pH isopotential point 7.000 pH resolution .001 temperature 25.0 ready hold beep autoshutoff timer interval 5 seconds print mode 1-manual print print interval 1 minute datalog mode 0-off (520Aplus, 525Aplus, 710Aplus, 720Aplus, and 920Aplus) measurement channel...
  • Page 120 Orion Benchtop pH/ISE Meter Instruction Manual...

  • Page 121: Appendix E Multipoint Calibration Curve

    Orion Benchtop pH/ISE Meter Instruction Manual Appendix E Multipoint Calibration Curve Orion 410Aplus, 420Aplus, 520Aplus, 525Aplus, 710Aplus, 720Aplus, and 920Aplus utilize 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. Separate slope and E values are calculated using the adjacent pair of data points.
  • Page 122 Orion Benchtop pH/ISE Meter Instruction Manual...

  • Page 123: Appendix F Automatic Blank Correction

    Orion Benchtop pH/ISE Meter Instruction Manual Appendix F Automatic Blank Correction The Orion 710Aplus, 720Aplus, and 920Aplus have 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.
  • Page 124 Orion Benchtop pH/ISE Meter Instruction Manual This blank may be a true reagent blank, traces of analyte ion in the reagents, or it may be the “mud” value of the electrode. It could also be an interferent in the reagents that becomes apparent at low levels of analyte ion, or it could be any combination of these effects.
  • Page 125 Orion Benchtop pH/ISE Meter Instruction Manual When blank correction is implemented, the slope value for the electrode may be outside the range of values normally considered acceptable during an ordinary calibration. For best results calibration standards should be close in range to the expected sample concentrations and should bracket the expected sample concentration.
  • Page 126 Orion Benchtop pH/ISE Meter Instruction Manual...

  • Page 127: Appendix G Determining Isopotential Points

    Orion Benchtop pH/ISE Meter Instruction Manual Appendix G Determining Isopotential Points To take advantage of the temperature compensation feature for concentration measurements in the Orion 920Aplus, it is necessary to experimentally determine the isopotential point of the electrode in use. The slope of all electrodes changes with temperature.
  • Page 128 Orion Benchtop pH/ISE Meter Instruction Manual Determining an Isopotential Point Prepare several standards with concentration ranges over the measuring range of the electrode. Measure the millivolt value of the standards at room temperature, i.e. 20-25°C. Measure the millivolt value of each standard at 75°C. Measure the millivolt value of each standard at 10°C.

  • Page 129: Specifications

    SPECIFICATIONS 410Aplus 420Aplus 520Aplus 525Aplus pH range -2.000 to 19.999 -2.000 to 19.999 -2.000 to 19.999 -2.000 to 19.999 resolution 0.001/0.01/0.1pH 0.001/0.01/0.1pH 0.001/0.01/0.1pH 0.001/0.01/0.1pH relative accuracy ±0.005 ±0.005 ±0.005 ±0.005 slope 80 to 120% 80 to 120% 80 to 120% 80 to 120% concentration range...
  • Page 130 SPECIFICATIONS 710Aplus 720Aplus 920Aplus pH range -2.000 to 19.999 -2.000 to 19.999 -2.000 to 19.999 resolution 0.001/0.01/0.1pH 0.001/0.01/0.1pH 0.001/0.01/0.1pH relative accuracy ± 0.005 ±0.002 ±0.002 slope 80 to 120% 80 to 120% 80 to 120% concentration range 0.000 to 19900 0.000 to 19900 0.000 to 19900 resolution...
  • Page 131 Room 904, Federal Building 369 Lockhart Road Wanchai, Hong Kong Tel: 852-2836-0981 Fax: 852-2834-5160 Customer Support Toll Free: 800-225-1480 www.thermo.com Dom. e-mail: domcs1@thermoorion.com Int’l. e-mail: intcs1@thermoorion.com For updated contact information, visit www.thermo.com Analyze Detect Measure Control ™ • • • 233541-001 Rev.C...

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