Benchtop pH/mV/ORP/BOD Meter - Cole-Parmer • Detect • Measure • Control Orion 611 Benchtop...

Analyze • Detect • Measure • Control™

Orion 611 Benchtop pH/mV/ORP/BOD Meter

I N S T R U C T I O N M A N U A L

CALIB % SLOPESTDpH

TEMP

MV0

BY

80

85

90 95

100

105

log R compensationdigital pH/millivolt meter Orion 611

2

Orion 611

AQUAfast, Cahn, EZ Flash, Ionalyzer, ionplus, KNIpHE, No Cal, ORION, perpHect, PerpHecT, PerpHecTion, pHISA, pHix, pHuture, Pure Water, Sage, Sensing the Future, SensorLink, ROSS Ultra, Sure-Flow, TEA Analyzer, Titrator PLUS, TURBO2 and Wine Master are registered trademarks of Thermo Electron Corporation.

1-888-pHAX-ION, A+, All in One, Aplus, AQUAsnap, AssuredAccuracy, AUTO-BAR, AUTO-CAL, AUTO DISPENSER, Auto-ID, AUTO-LOG, AUTO-READ, AUTO-STIR, Auto-Test, BOD AutoEZ, Cable-Free, CERTI-CAL, CISA, DataCOLLECT, DataPLUS, digital LogR, DirectCal, DuraProbe, Environmental Product Authority, Extra Easy/Extra Value, FAST QC, Flash Titration, Flash Titrator, GAP, GLPcal, GLPcheck, GLPdoc, ISEasy, KAP, LabConnect, LogR, Low Maintenance Triode, Minimum Stir Requirement, MSR, NISS, One-Touch, One-Touch Calibration, One-Touch Measurement, Optimum Results, Pentrode, pHuture MMS, pHuture Pentrode, pHuture Quatrode, pHuture Triode, Quatrode, QuiKcheK, rf link, ROSS, ROSS Resolution, SAOB, Smart CheK, Stacked, Stat Face, The Enhanced Lab, ThermaSense, Triode, TRIUMpH, Unbreakable pH, Universal Access are trademarks of Thermo.

Guaranteed Success and The Technical Edge are service marks of Thermo.

PerpHecT meters are protected by U.S. patent 6,168,707.

PerpHecT ROSS are protected by U.S. patent 6,168,707.

ORION Series A meters and 900A printer are protected by U.S. patents 5,108,578, 5,198,093, and German patents D334,208 and D346,753.

Sure-Flow electrodes are protected by European Patent 278,979 and Canadian Patent 1,286,720.

ionplus electrodes and Optimum Results solutions are protected by US Patent 5,830,338.

ROSS Ultra electrodes have patents pending.

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.

The specifications, descriptions, drawings, ordering information and part numbers within this document are subject to change without notice.

This publication supersedes all previous publications on this subject.

Table of ContentsChapter I General Information 1

Introduction 1

Chapter II Instrument Description 2

Front Panel 2Rear Panel 3

Chapter III Instrument Set-Up 4

Installation 4Checkout Procedures 4Electronic Temperature Calibration 5

Chapter IV Measurement Procedures 6

pH Measurement 6A. Set-Up 6

B. Single-buffer Calibration 6

C. Two-buffer Calibration 7

Temperature Measurement 7A. Temperature Calibration at Two Temperatures 7

B. Use of pH Electrode as a Thermometer 9

Dissolved Oxygen Measurement 9Potentiometric Titrations 10Polarized Electrode Titrations 10

Chapter V Use with Strip Chart Recorders 11

Chapter VI Instrument Warranty 12

Chapter VII Repair and Service 15

Chapter VIII Notice of Compliance 16

Chapter IX Ordering Information 17

Chapter X Specifications 18

Orion 611 pH Millivolt Meter Instruction Manual


Chapter IGeneral InformationIntroduction

Obtaining accurate pH values depends on both correct measurement of standard and sampletemperatures, and on compensation for any variations in these temperatures. This thermal compensationhas generally been accomplished either manually, (by measuring sample solution with a thermometerand then dialing in the measured temperature on the meter), or automatically, (by placing a separatetemperature probe together with a pH electrode in the solution). Both actions will modify amplifier gainor change the potential at the input of an A/ D converter, to scale the measurement into temperature-compensated values. The Orion 611 pH Meter requires no temperature dial or separate temperatureprobe. The meter measures temperature change through resistance changes that occur in the pHelectrode, and uses this information to automatically compensate for pH/temperature readings. TheOrion 611’s temperature measurement ability is based on the relationship of pH electrode resistance totemperature. The log of resistance of the electrode varies almost proportionately with temperature. AllpH electrodes have a negative temperature coefficient of about 8% per degree, that is, electroderesistance doubles for every 10 °C drop in temperature. Although pH electrode resistance at any giventemperature varies from electrode to electrode, all pH electrodes exhibit approximately the samepercentage change in resistance with temperature.

A simplified block diagram of Orion 611 appears below.

General Information 1

Figure 1611 Block Diagram

DISPLAY

ANALOG TODIGITAL

CONVERTER

A.C.REJECT

LINEARIZER

A.C.VOLTAGE

DECTECTOR

A.C.CURRENT

DECTECTOR

N.C.TEST

(100 M)(REAR PANEL)

PHASE INFO.CURRENT

AMP

F.E.T.INPUT AMP

pHCALIB.CONTROL(FRONTPANEL)

TEMPERATURE SLOPE(REAR PANEL)

% pH SLOPE(FRONT PANEL)

TEMPERATURE CALIBRATION(REAR PANEL)

LOG OF ELECTRODERESISTANCELOG

AMP

A.C. DRIVESIGNAL

pHELECTRODE

D.C.BLOCKINGCAPACITOR

CURRENTMEASURING

RESISTOR

(E + E ) + A.C. (E) + A.C. (E)

+-

0

TEMPERATURE SCALING FACTOR

~


2 Instrument Description

Chapter IIInstrument DescriptionFront Panel

See Figure 2.1. Display Orion 611 automatically reads out data in seven-segment numerals, with polarity sign

and decimal point.

2. Function Switch Orion 611 has a five-position function switch which includes these positions:

STD BY Indicated by decimal point only. Used instead of ON/OFF position to eliminatetemperature fluctuation, to keep the instrument ready for use, and to increase component life.

pH Reads temperature-compensated pH measurements between 0.00 and 14.00, precise to 0.01 pH unit; adjustable with calibration control (CALIB).

TEMP Reads temperature in degrees Celsius from - 10.0 to + 110.0.

MV Reads electrode potential measurements in relative millivolts between - 1999 to + 1999, precise to 1 mV or ± 0.2% of reading, whichever is greater; adjustable with calibrationcontrol (CALIB) . O2 Displays dissolved oxygen concentration in ppm between 0.00 and 19.99.

3. CALIB Adjusts pH and millivolt reading during calibration procedure.

4. % SLOPE Allows compensation for slope in 1% increments between 80 and 105% regardlessof sample temperature

CALIB % SLOPESTD2 3 41

pH

TEMP

MV0

BY

80

85

90 95

100

105

log R compensationdigital pH/millivolt meter 611

2

Figure 2Front Panel of Orion 611


Instrument Description 3

Rear Panel

See Figure 3.1. INPUT (pH) Sensing electrode jack. Accepts pH and redox electrodes with BNC connector.

2. REF (pH) Reference electrode jack. Accepts standard pin-tip connectors.

3. KF Polarizing current source (-10 microamperes) for Karl Fischer titrations. Jacks acceptstandard pin-tip connectors.

4. O2 (Input) Oxygen sensor electrode jack. Accepts Orion 97-08 Dissolved Oxygen Electrodewith BNC connector.

5. REF (02) Oxygen electrode reference jack. Accepts standard pin-tip connector.

6. REC Strip chart recorder binding posts. Red post is positive ( + ) and black post is negative ( - )

7. GND Earth-grounded jack for other system case grounds e.g., magnetic stirrers. Jack acceptsstandard pin-tip connectors.

8. TEST Switch for assessing correct meter performance

9. TEMP ADJ Control for calibrating meter with respect to temperature. Adjusts for variationsin pH electrode resistance from electrode to electrode at any given temperature.

10. FUSE 1/4 amp SLO-BLO fuse for 110/115V 1/8 amp SLO-BLO fuse for 220/240 V.

11. POWER CONNECTION for line cord. Power requirements are 100 / 115 / 220 / 240 AC (± 10%), 50/60 Hz, 16 watts.

12. REC ADJ Adjusts recorder output voltage to accommodate potentiometric strip chart recorderswith input sensitivities up to 100 mV for full-scale reading.

13. FS ADJ Factory-adjusted trimpots for full-scale deflection. Any adjustment of these trimpotswithout a precision voltage source will disturb meter calibration.

14. TEMP SLOPE Trimpot provides compensation for variations in resistance from pH electrodeto pH electrode as a function of temperature.

15. BCD BCD output not currently operational.

INPUT KF O REC TEST TEMPADJ 10

976

12 13 14

4

5

3

81

2

2

15

11

DISCONNECT SUPPLY BEFORE CHANGING FUSE

ELECTRIC SHOCK HAZARDDO NOT REMOVE COVERREFER SERVICING TO QUALIFIEDSERVICE PERSONEL

REF

RECADJ

FSADJ

TEMPSLOPE

GND

REF

Figure 2Rear Panel of Orion 611


4 Instrument Set-Up

Chapter IIIInstrument Set-UpInstallation

1. Ensure that the package contents include 611 Meter, support rod and electrode holder, BNC shorting cap (attached to meter input), line cord and warranty card.

2. Verify that the rear panel specifications label shows correct line voltage.

3. Attach support rod to the Orion 611. Turn the meter on its side on a soft pad to protect the case.Remove the two flat-head screws from the bottom of the case.

4. Fasten the support on either side of the case, using the two screws.

5. Mount electrode holder on the support rod, hold in position and tighten the thumbscrew.

6. On instruments wired for 220 or 240 V, a gray line cord is supplied with a molded plug. If thisplug does not fit the available socket, replace it, matching the brown wire to live, the blue wireto neutral, and the green-and-yellow to a suitable earth ground.

Checkout Procedures

Meter CheckoutPerform the following steps to determine if your Orion 611 is operating properly. If checkout fails,contact your local Representative.

1. Connect the BNC shorting cap to INPUT (pH).

2. Turn Function Switch to STD BY.

3. Connect the power cord to the appropriate AC voltage source. If your power source isungrounded, ground the chassis by connecting the green wire on a two-prong adaptor plug to awater supply pipe or other suitable ground. The GND jack on the rear panel permits groundingof auxiliary instruments. Allow 30 minutes for system to warm up.

4. With the Function Switch in STD BY, verify that only a decimal point is displayed.

5. Turn the Function Switch to MV and verify that polarity sign appears with numbers. Adjustdisplay to 000 with CALIB.

6. Turn the Function Switch to pH. Turn CALIB until 7.00 is displayed. Verify that turning % SLOPE does not offset the reading more than ± 0.02 pH.

7. Turn Function Switch to TEMP. Set display to 50.0 ± 0.2 using TEMP ADJ control.

8 . Press and hold TEST switch on rear panel. Display should read 25.0 ± 0.5. If instrument failsthis, perform Electronic Temperature Calibration.


Instrument Set-Up 5

Electronic Temperature Calibration

1. Connect the BNC shorting cap to INPUT (pH).

2. Turn Function Switch to TEMP. Set display to 50.0 ± 0.1 using TEMP ADJ on rear panel.

3. Press and hold TEST switch on rear panel. Using a small screwdriver, adjust TEMP SLOPEcontrol until display reads 25.0 ± 0.1.

4. Release TEST and display should return to 50.0 ± 0.2. If not, repeat steps 2 and 3.


6 Measurement Procedures

Chapter IVMeasurement ProcedurespH Measurement

A. Set-Up1. Leave the Orion 611 in STD BY to eliminate warm up and increase component life. Allow one-

half hour warm up if meter has been disconnected.

2. Securely connect pH and reference electrodes, or combination pH electrode into INPUT (pH) and REF (pH) on the rear panel.

3. Verify that reference filling solution level in the electrode is adequate. The level of fillingsolution should be higher than the sample level.

4. Stir buffer and sample during analysis with a magnetic stirrer, if possible.

5. Rinse electrodes with distilled water between measurements.

B. Single-buffer Calibration1. Place electrodes (or combination pH electrode and a thermometer) in a buffer solution with a pH

value within three pH units of the expected value of the sample. For maximum precision, stirthroughout the measurement.

2. Set % SLOPE to 100%.

3. Turn Function Switch to TEMP.

4 . Using TEMP ADJ on the rear panel, set the display to the thermometer temperature reading.The meter is now adjusted for temperatures near the set point. If greater accuracy is desired, use the temperature calibration procedure. Calibrate for temperature whenever a new electrodeis installed.

5. Turn Function Switch to pH.

6. Using CALIB, set the display to the buffer value at the temperature being measured. (Checkbuffer packet or bottle for pH value at solution temperature, or see Table 1.)

7. Remove the electrode(s) from the buffer solution and rinse with distilled water.

8. Place the electrode(s) in the unknown sample. Allow reading to stabilize.

9. Read pH value directly from the display.


Measurement Procedures 7

C. Two-buffer Calibration1. Select two buffers. The first should be a pH 7 buffer (or near pH 7), and the second should be

near the expected value of the unknown (e.g., pH 4 or pH 10 buffer).

2. Place electrode(s) and thermometer in a pH 7 buffer.

3. Turn the Function Switch to TEMP.

4. Using the TEMP ADJ on the rear panel set the display to the thermometer temperature reading.If greater accuracy is desired use the temperature calibration procedure.

5. Turn the Function Switch to pH. Using CALIB set the display to the buffer value at thetemperature being measured. (Check buffer packet or bottle for pH values at solutiontemperature, or see Table 1.)

6. Remove electrode(s) from the first buffer and rinse with distilled water.

7. Place electrode(s) in the second buffer solution.

8. Turn % SLOPE until pH value of second buffer at the temperature being measured is displayed.

9. Remove electrode(s) and rinse with distilled water.

10. Place electrode(s) in unknown sample. After reading stabilizes, read pH value.

Temperature Measurement

A. Temperature Calibration at Two TemperaturesFollow the procedure below for determinations where maximum temperature accuracy is desired.

1. The calibration standards must bracket the sample temperature range. To accomplish this, selectan aqueous solution and pour it into two beakers. Bring the first solution to 50 °C. Bring thesecond solution to a temperature that will, with the 50 °C solution, bracket the expected sampletemperatures. For example, use a second temperature of 25 °C to temperature standardize for asample at 35 °C.

2 . Place electrode(s) into the 50 °C solution to a depth of at least 5 cm, and thermometer to itsimmersion line.

3. Turn the Function Switch to TEMP. Using TEMP ADJ on the rear panel, set the display tothe thermometer temperature reading.

4. Place the electrode into the second solution.



5. Place thermometer into the second solution. After the reading stabilizes use a small screwdriver to adjust TEMP SLOPE on the rear panel until the display reads the secondsolution’s temperature.

6. Place electrode(s) and thermometer back in the 50°C solution, repeat steps 3, 4, and 5 if necessary.

7 . Place electrode(s) in a solution whose temperature is near the expected sample temperature. Use TEMP ADJ to set the display to solution temperature. This will minimize temperatureerrors at the sample measuring temperature. If unable to perform calibration at two temperatures,see Checkout Procedure.

Table 1pH Values of Buffers at Various Temperatures

NIST Buffer,Nominal Value At25 ºC Temperature

* Non NIST Phosphate Buffer

1.683.784.016.867.00*7.419.1810.01

0 ºC1.673.864.006.987.117.539.4610.32

5 ºC1.673.844.006.957.087.509.4010.25

10 ºC1.673.824.006.927.067.479.3310.18

20 ºC1.673.794.006.877.017.439.2310.06

30 ºC1.683.774.026.856.987.409.149.97

40 ºC1.693.754.036.846.977.389.079.89

50 ºC1.713.754.066.836.977.379.019.83

60 ºC1.72

4.086.84

8.96

70 ºC1.74

4.136.85

8.92

80 ºC1.77

4.166.86

8.89

90 ºC1.79

4.216.88

8.85


Measurement Procedures 9

B. Use of pH Electrode as a ThermometerTo obtain temperature readings using a pH electrode as a thermometer with the Orion 611

1. Calibrate the meter for temperature reading. See Single buffer Calibration, steps 3 and 4, orTemperature Calibration at Two Temperatures for maximum accuracy.

2. During measurement, with the pH electrode in solution, turn the Function Switch to TEMP andread temperature on the display.

Dissolved Oxygen Measurement

Dissolved oxygen measurements are displayed in ppm O2 when Orion 97-08 Dissolved OxygenElectrode is used with the Orion 611 Meter. Follow these instructions for preparing the meter andcalibrating the electrode.

1. Connect the BNC connector of the Orion 97-08 to the O2 input on the rear panel.

2. Turn the Function Switch to O2.

3. Display should read 7.00 ± 0.10.

4. Turn the mode switch on the electrode to BT CK. Good battery operation is indicated by areading of 13.00 or greater on the meter.

5. Turn the mode switch on the electrode to ZERO. Use the zero calibration control to set themeter to read 0.

6. Insert the reservoir (funnel) into a BOD sample bottle containing enough water to just cover thebottom of the bottle. Insert the electrode, making sure that the electrode tip is not immersed inthe water and does not have water droplets clinging to the outside of the membrane. Let standapproximately 30 minutes to ensure water saturation of air in BOD bottle. This bottle shouldalso be used for storage between measurements.

7. Turn the electrode mode switch to the AIR position. If measurements are being made at sealevel, use the AIR calibration control to set the pH meter reading to the prevailing barometricpressure in mm Hg (divided by 100). If the barometric pressure is unknown, if the elevation isabove sea level, or, if the sample has a salinity greater than 2 parts per thousand, consult Table 1found in the Orion 97-08 Instruction Manual to obtain the correct AIR setting .

8. Turn electrode mode switch to H2O for sample analysis.



Potentiometric Titrations

Potentiometric titrations can be performed using redox electrodes. Directions for titrations using redoxelectrodes appear in the Orion Redox Electrode Instruction Manual or in standard analytical chemistrytexts. Plot the curve of millivolts of titrant added against observed millivolt readings using standardcoordinate graph paper. The point of inflection on the curve is the endpoint. Calculate the normality ofthe unknown.

Polarized Electrode Titrations

A 10 microampere polarizing current is available for Karl Fischer or other titrations where polarizedplatinum electrodes are used:

1. With the Function Switch on mV, connect the accessory shorting strap (Orion No. 090048),between INPUT (pH), and one Karl Fischer input jack KF. See Figure 2.

2. Connect one of the platinum electrode jacks to REF (pH) on the rear panel

3. Connect the second platinum electrode jack to the second KF input jack.

4. Place electrodes in the sample solution and perform the titration.


Use with Strip Chart Recorders 11

Chapter VUse with Strip Chart RecordersThe black and red rear panel binding posts provide an output for strip chart recorders. For recorderswith input impedance of at least 1 megohm, the recorder output is adjustable to ± 100 mV for a full-scale display of ± 1999 mV

Set Up1. Connect the lead from the negative side of the recorder to the black binding post and the lead

from the positive to the red binding post.

2. Proceed according to the instructions in the strip chart recorder instruction manual. If the stripchart recorder is a fixed-input type, use REC ADJ on the rear panel of the Orion 611 to adjustthe full-scale to conform to that of the recorder.


12 Instrument Warranty

Chapter VIInstrument WarrantyFor the most current warranty information, visit www.thermo.com.

The Thermo Electron Corporation, Orion products warranty covers failures due to manufacturer’sworkmanship or material defects from the date of purchase by the user. User should return the warrantycard and retain proof of purchase. Warranty is void if product has been abused, misused, or repairsattempted by unauthorized persons.

Warranties herein are for product sold/installed by Thermo or its authorized dealers.

Any product sold by a U.S. or Canadian distributor must be returned to Thermo for any warranty work.Please contact our Technical Service department for further information. A Return AuthorizationNumber must be obtained from The Technical EDGESM for Orion Products before returning any productfor in-warranty repair or replacement.

In the event of failure within the warranty period, Thermo will at the company’s option, repair orreplace product not conforming to this warranty. There may be additional charges, including freight, forwarranty service performed in some countries. For service, call Thermo or its authorized dealer outsidethe United States and Canada. Thermo reserves the right to ask for proof of purchase, such as theoriginal invoice or packing slip.

Field Service is available on Orion BOD AutoEZ™, EZ Flash® GC Accessory and TEA Analyzer®.Contact our Field Service department for details on quotations and service, other field service-relatedactivities.

The following products are warranted to be free from defects in material and workmanship in the periodlisted below from the date of purchase from the user or from the date of shipment from Thermo,whichever is earlier, provided use is in accordance with the operating limitations and maintenanceprocedures in the instruction manual and when not having been subjected to accident, alteration, misuse,abuse or breakage of electrodes:

Thirty-six months from date of purchase by the user (or forty-two months from date of shipmentfrom Thermo)

• Waterproof Meters (Orion 630, 635, 830A, 835A, 260A, 261S, 265A, 266S, 130A, 131S, 135A and136S), Conductivity Meters (Orion 105Aplus, 115Aplus, 125Aplus, 145Aplus, 150Aplus and 162A),PerpHect® pH/ISE Meters (Orion 310, 320, 330, 350, 370) pH/ISE Meters (Orion 210Aplus,230Aplus, 250Aplus, 290Aplus, 410Aplus, 420Aplus, 520Aplus, 525Aplus, 710Aplus, 720Aplus and920Aplus), pHuture MMS™ Meters (Orion 535A and 555A), pH/Conductivity Meter (Orion 550A),Dissolved Oxygen Meters (Orion 805Aplus, 810Aplus, 850Aplus and 862A).

Twenty-four months from date of purchase by the user (or thirty-six months from date ofshipment from Thermo)

• Orion ROSS Ultra® Electrodes, Orion AQUAfast® IV Colorimeters, Orion AQUAfast® IV


Instrument Warranty 13

Turbidimeter, Orion 925 Flash Titrator™, Series 100 DuraProbe™ Conductivity Cells and Series 800Dissolved Oxygen Probes.

Twelve months from date of purchase by the user (or eighteen months from date of shipment fromThermo)

• Laboratory pH Meters, (Orion 301, 611 and 940), SensorLink®, pHuture™ pH Meters (Orion 610 and620), Sage® Pumps, Cahn® Balances, 930 Ionalyzer®, 950 ROSS™ FAST QC™ Titrator, 960 TitratorPLUS®, Karl Fischer Titrators, Autosamplers, Liquid Handling Devices, Liquid HandlingAutomation Workstations (Orion AS2000, AS2500 and AS4000), Pumps (Orion SP201, SP201-HR,SP201-S, Peristaltic and Rinse), pHuture® Conversion Box, Wine Master®, 607 Switchbox, rf link™,AQUAfast® II Colorimeters, Vacuum Degasser and Flowmeter.

• Orion EZ Flash® GC Accessory, Orion TEA Analyzer® 610 and 510 excluding consumable itemscarry twelve months warranty only.

• Orion Ion Selective Electrodes, ionplus® Electrodes, ROSS™ Electrodes, Sure-Flow® Electrodes,PerpHecT® Electrodes, AquaPro Professional Electrodes, No Cal™ pH electrodes, Standard Line pHElectrodes, Tris pH Electrodes, KNIpHE® electrode, ORP Triode™ (Orion 9180BN), pHuture™ pHProbes (Orion 616500) and pHuture MMS™ Quatrode™ and Triode™ (Orion 616600 and 617900),Orion 97-08 DO Probe, Series 100 Conventional Conductivity Cells, temperature probes andcompensators (except those products noted).

• Orion 93 and 97 ionplus Series sensing modules are warranted to give six months of operation ifplaced in service before the date indicated on the package, except 93-07 and 97-07 Nitrate modulesare warranted to give ninety days of operation if placed in service before the date indicated on thepackage.

Six months from date of purchase by the user (or twelve months from date of shipment fromThermo)

• Orion Flash Titration™ Probe (Orion 092518), pHuture™ Electrode (Orion 615700), pHuture MMS™

Pentrode™ (Orion 617500), Quatrode™ (Orion 617800) and Triode™ (Orion 615800), LowMaintenance Triode™ (Orion 9107BN), ORP Low Maintenance Triode™ (Orion 9179BN), andPerpHecT® Low Maintenance Triode™ (Orion 9207BN), Waterproof Triode™ (Orion 9107WP,9107WL, 9109WL and 9109WP), QuiKcheK® Meters and Micro Electrodes.

Three months from date of purchase by the user (or six months from date of shipment fromThermo)

• Economy Line Electrodes, Orion 91-05, 91-06, 91-15, 91-16, 91-25, 91-26, 91-35, 91-36, 92-06.Warranty also includes failure for any reason (excluding breakage), except abuse, provided theelectrode is not used in solutions containing silver, sulfide, perchlorate, or hydrofluoric acid; or insolutions more than one (1) Molar in strong acid or base at temperatures above 50 °C.


14 Instrument Warranty

“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® Test Strips, EZ Flash® columns, Liquid HandlingProbes, Adapter Plates and Racks and general accessories.

For products in the catalog not listed in this warranty statement, please visit our website at:www.thermo.com.

THE WARRANTIES DESCRIBED ABOVE ARE EXCLUSIVE AND IN LIEU OF ALL OTHERWARRANTIES WHETHER STATUTORY, EXPRESS OR IMPLIED INCLUDING, BUT NOTLIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR APARTICULAR PURPOSE AND ALL WARRANTIES ARISING FROM THE COURSE OF DEALINGOR USAGE OF TRADE. THE BUYER’S SOLE AND EXCLUSIVE REMEDY IS FOR REPAIR ORREPLACEMENT OF THE NON-CONFORMING PRODUCT OR PART THEREOF, OR REFUND OFTHE PURCHASE PRICE, BUT IN NO EVENT SHALL THERMO (ITS CONTRACTORS ANDSUPPLIERS OF ANY TIER) BE LIABLE TO THE BUYER OR ANY PERSON FOR ANY SPECIAL,INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES WHETHER THE CLAIMS AREBASED IN CONTRACT, IN TORT (INCLUDING NEGLIGENCE), OR OTHERWISE WITHRESPECT TO OR ARISING OUT OF THE PRODUCT FURNISHED HEREUNDER.

REPRESENTATION AND WARRANTIES MADE BY ANY PERSON, INCLUDING ITSAUTHORIZED DEALERS, REPRESENTATIVES AND EMPLOYEES OF THERMO WHICHALTER OR ARE IN ADDITION TO THE TERMS OF THIS WARRANTY SHALL NOT BEBINDING UPON THERMO UNLESS IN WRITING AND SIGNED BY ONE OF ITS OFFICERS.


Repair and Service 15

Chapter VIIRepair and ServiceAfter troubleshooting all components of your measurement system, contact The Technical EdgeSM forOrion products. Within the United States call 1.800.225.1480, outside the United States call978.232.6000 or fax 978.232.6031. In Europe, the Middle East and Africa, contact your local authorizeddealer. For the most current contact information, visit www.thermo.com.


16 Notice of Compliance

Chapter VIIINotice of ComplianceWARNING: This meter may radiate radio frequency energy and if not installed and used properly, thatis, in strict accordance with the manufacturer’s instructions, may cause interference to radiocommunications. It has been tested and found to comply with the limits for a Class A computing devicepursuant to Subpart J of Part 15 of FCC Rules, which are designed to provide reasonable protectionagainst such interferers In a commercial environment. Operation of the meter in a residential area maycause interference in which case the user, at his own expense, will be required to take whatevermeasures may be required to correct the interference.

This digital apparatus does not exceed the Class A limits for radio noise emissions from digitalapparatus set out in the Radio Interference Regulations of the Canadian Department of Communications.

Le present appareil numerique n’emet pas de bruits radioelectriques depassant les limites applicablesaux appareils numeriques de la class A prescrites dans le Reglement sur le brouillage radioelectriqueedicte par le ministere des Communications du Canada.


Ordering Information 17

Chapter IXOrdering Information

Orion No. Description

910001 pH Electrode Storage Solution, 475 ml bottle

910104 pH 4.01 Buffer, color-coded, 475 ml bottle



Orion No. Description

910002 Electrode holder

090043 Swing arm electrode holder

090040 Shorting strap for Karl Fischer titrations

090033 US electrode to BNC meter adaptor

800982-A02 Tilt base

970899 Orion 97-08 Dissolved Oxygen Electrode

9678BN Orion 96-78 Combination Platinum Redox Electrode, epoxy body

9778BN Orion 97-78 Combination Platinum Redox Electrode, glass body

8175BN SURE-FLOW Semi-Micro Electrode, Epoxy Body


18 Specifications

Chapter XSpecificationsFront Panel Controls Mode Switch pH Calibration Control (approx. ± 100 mV)Slope Control (80 - 105% theoretical)

pH Range0.00 to 14.00 with pH 7 isopotential point

Relative pH Accuracy ± 0.01 pH over any 3 pH units span between buffer points

Millivolt Range± 1999 mV

Milllvolt Relative Accuracy± 1.0 mV or 0.2% of reading, whichever is greater

Temperature Measuring Range- 10.0 to + 110 °C

Temperature Accuracy± 1 °C between 0 and 100 °C ± 0.5 °C between 10 and 60 °C (typical accuracy using commerciallyavailable laboratory type combination and half cell pH electrodes standardized at room temperature)

Dissolved Oxygen Range0.00 to 19.99 ppm

Dissolved Oxygen Accuracy Determined by oxygen electrodes (see Orion 97-08 Dissolved Oxygen Electrode Instruction Manual for specifications)

Rear Panel Outputs - 10µA polarizing current for Karl Fischer titrations; strip chart recorder output 0 - 100 mV( ± 2000 mV) span for full scale reading

Rear Panel Controls Test Switch: Allows correct meter performance to be assessed and pH electrode resistance to be estimated Temperature Calibration: For standardizing meter with respect to temperature

pH Electrodes Accepted Most glass types with pH 7 isopotential and BNC input connectors having room temperature resistancein the range of 50 - 1500 megohms


Specifications 19

pH Temperature Compensation Automatic at all times without the use of a thermocompensator when meter is in the pH operating mode

Display1.5 cm high LED

Power Requirement100/115/220/240 V ( ± 10%), 50/60 Hz, 16 watts

Case 9 cm high x 33 cm wide x 18 cm deep, 5 kg; steel painted with scratch and chemical resistant paint

Accessories Electrode holder, electrode support rod, BNC shorting cap, instruction manual, meter support rod

Specification subject to change without notice.Log R Compensation, U.S. patent no 4,321,544


20

227339-001 Rev. E

Analyze • Detect • Measure • Control™

Environmental InstrumentsWater Analysis

North America 166 Cummings CenterBeverly, MA 01915 USATel: 978-232-6000Dom. Fax: 978-232-6015Int’l. Fax: 978-232-6031

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Customer Support Toll Free: 800-225-1480 www.thermo.com Dom. e-mail: [email protected]’l. e-mail: [email protected]

For updated contact information, visit www.thermo.com

Benchtop pH/mV/ORP/BOD Meter - Cole-Parmer • Detect • Measure • Control Orion 611 Benchtop...

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