Instruction Manual Anderson Instrument Co. Inc.156 Auriesville RoadFultonville, NY 12072 www.anderson-negele.com

Instrument Model Number ________________________________

Instrument Serial Number _________________________________

T-Series "SMART"Sanitary Pressure Transmitter

Form Number AIC3708© April 1996Revised: January 2014Supersedes: July 2012

Table of Contents PageSection 1 - Introduction 4 1.1 SPECIFICATIONS 51.2 DIMENSIONS 6

Section 2 - Theory of Operation 7

Section 3 - Installation 7

Section 4 - Sensor Wiring 8

Section 5 - Instrument Wiring 95.1 LOOP POWER 9

Section 6 - Liquid Crystal Display 10 6.1 LCD INSTALLATION 10

Section 7 - Maintenance 11

Section 8 - Calibration 118.1 CALIBRATION OF TRANSMITTER 118.2 CALIBRATION OF LCD DISPLAY 12

Section 9 - Troubleshooting 149.1 VOLTAGE CHECK 149.2 CURRENT CHECK 149.3 MISCELLANEOUS TROUBLESHOOTING 14

Section 10 - Warranty and Return Statement 16

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Section 1 IntroductionThis manual is provided to assist the user in installing, operating and maintaining the Anderson “T” Series transmitter. The “T” is a one-piece sanitary transmitter with digital communications capabilities. This digital communications capability is the feature which separates traditional analog transmitters from the new “SMART” devices which are becoming more popular for process monitoring and control. For more information on “SMART” and what it means to you, read the following:

Product Description: What is an Anderson “SMART Transmitter?An Anderson “T” Series transmitter is a second generation product developed on the proven RSP/RSV design platform. As such, it provides the user with an analog, 4-20 mA transmitter specifically designed to withstand the high ambient moisture, high vibration applications typical of Sanitary fluid processes. We’ve added a microprocessor‑based circuit to enhance performance and provide local/remote communication capabilities. Customers benefit by being able to simplify specification, installation, start‑up, and maintenance of their transmitters. We’ve chosen the “HART” protocol because of it’s broad acceptance in our core markets, and the flexibility and ease of use it provides our customers. HART stands for “Highway Addressable Remote Transducer”.

How do I communicate with the “SMART” Transmitter? Communication is accomplished via a “HART” Hand‑Held Terminal (HHT). The most current model the 275, was used in development of the “T” Series and will provide optimum performance and flexibility. Optionally, communication is possible via a P.C. interface.

Where do I connect the HHT in order to “talk” with my transmitter? At any point where the signal leads from the transmitter are accessible. This could be at the transmitter itself, or at any connection point in the 4-20 mA loop.

What happens to the integrity of my 4‑20mA signal while I’m connected via the HHT? A distinct advantage to the HART protocol is the isolation between digital and analog signals. The 4‑20 analog output remains intact while the HHT is connected!

What real life benefits will I realize by utilizing the “T” Series “SMART” transmitter? In general, SMART transmitters offer immediate performance enhancements over their analog counterparts. Initial costs are slightly higher but this is countered by the time savings realized during commissioning and subsequent calibrations. With the Anderson “T” Series specifically, the calibration menu has been enhanced to provide direct access to the transmitter span adjustment. This allows the unit to be zero adjusted before installation and spanned on the process line, something competitive units can’t do. Also, Anderson’s HART protocol was developed as a universal set of menu’s, applicable to all pressure, temperature and level transmitters. This will insure that future product offerings will all communicate via one, common HHT.

PAGE 51.1 SPECIFICATIONSRanges: DefinedbyUpperRangeLimit(URL)

Rangeability(Turn-down): 10:1viaanyHARTHostDevice

OverPressureLimit: 2XURL

MechanicalTrimAdjustments: Internallyadjustable±5%ofspan(zero);±20%ofspan(span)

Output: 4-20mA,Two-wire,Linear,DigitalProcessvariablesuperimposedon4-20mAsignal,availabletoany"HART"protocolconforminghost.

PowerSupply: 13-40volts,D.C. 18-45volts,D.C.withdisplay

Indication: Optional,cap-mounted,LCD Indicationaccuracy±1%F.S.

TemperatureLimits(Process): Standard/DirectMount:0to275°F(-18to135°C) HighTemp/DirectMount:0to350°F(-18to177°C)** HighTemp/RemoteMount0to400°F(-18to204°C)**

HazardousLocationsCompliance: MODELTPPONLY:ULCompliancewithClass1,Div.1,GroupsAthruDforintrinsicallysafeapparatus,whenconnectedwithapprovedbarriersystem(Seeinstructionmanual).

ProcessTemperatureEffect: Lessthan0.2%offullscaleoutput/10°Fchange.

PerformanceSpecifications:

Accuracy*(psigranges): ±0.2%ofURL(psia,compoundvacuum): ±0.3%ofURL *Accuracyincludesrepeatability,hysteresisandlinearity.

Repeatability: ±0.06%

Hysteresis: ±0.07%

Linearity(BFSL): ±0.07% (±0.17%forpsia,compound&vacuumranges)

Stability: ±0.3%ofURL/6months

PhysicalSpecifications:

WettedMaterial: 316LStainlessSteel,Hastelloy"C"optional

WettedMaterialSurfaceFinish: MODELTPP:Ramax=8microinches(.2microns)andelectropolished

MODELTFP:Ramax=25microinches(.6microns)

HousingMaterial: 304StainlessSteel

ActuatingFill: 100%mineraloil.MeetsFDArequirements (21CFR,172.878and178.3620(a))

ElectricalConnections: 1/2-14NPTconduitwithscrewterminalsandintegraltestloopsforHARTinterface

** Processvacuumsinexcessof24"Hgmayrequireslightde-ratingofmaximumtemperature(consultfactory).

PAGE 61.2 DIMENSIONS

Figure 1 - Standard Direct-Mount

Figure 2 - High Temperature Direct-Mount

Figure 3 - High Temperature Remote-Mount

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Section 2 Theory of OperationThetransmitterutilizesasanitarydiaphragmtotransmitpressuretoanelectronictransducer.Theoutputofthistransducerismonitoredbyanon-boardmicroprocessorwhichcontrolsthesignalleveloftheanalog,4-20mA,output.Themicro-processoralsoallowsforremotecommunicationwhichcanbeusedincalibration,re-ranging,datastorage,andtroubleshootingthetransmitter.Theanalogoutputremainsinterruptedduringcommunicationandassuchcanbeusedasaninputtoarecorder,controller,digitalindicator,orPLC.

Section 3 InstallationThetransmittershouldbelocatedontheprocessorequipmentsuchthatthehousingisprotectedfromphysicalabuse.Donotselectalocationwheretheunitcanbestruckbymobileequipment,forklifts,etc.Thehousingshouldbeorientedsuchthattheoptionaldigitaldisplayisvisibletotheoperator.Ahorizontalorientationmaybeoptimumforviewingandalsopreferrediftheprocesstemperaturewillexceed275°F(135°C).

Precautionsshouldbetakentoinsurethatthehousinginternalsarenotexposedtowater,watervapor,orothermoisture.Experiencehasshownthatflexibleconduitsdonotnecessarilyprecludewaterformenteringsensorhousings.Condensationiscommonwithintheconduitandmustbekeptfrommigratingintothesensor.Note:Theinstallerassumesresponsibilityforpreventingmoisturefromenteringthesensorhousing.

Ifmountedhorizontally,theconduitfittingshouldpointdownward.Thepreferredmethodforconnectingthesensoristoutilizethewatertightconnectorprovidedtoprovedasealagainstthecable.Rigidorflexconduitshouldbeterminatedjustshortofthesensorhousingsealedaswelltopreventwaterfrommigratingintotheconduit.Thismethodprovidesprotectionforthecabling,whileisolatingthesensorfromwaterthatinevitablyfindsit’swayintoconduitruns

Figure 4 - High Temperature Remote Mounting Diagrams

VERTICAL PIPE MOUNTING

HORIZONTAL PIPE MOUNTING

PAGE 8

Section 4 Sensor WiringAndersonrecommendsacableof24gauge,4conductor,shielded(Belden#9534)orequivalent.Fourconductorcableisutilizedbecauseofitsroundness,whichprovidesasuitablesealwhenusedwithseal-tightconnectors,strainreliefsandrubbergrommets.Irregularshapedcabledoesnotallowforawatertightseal.

Ifutilizingcustomersuppliedcable,selectaroundcablewith22-24AWGwireandashield.InorderfortheAndersonprovidedseal-tightconnectortosealonthecable,theO.D.ofthecablemustbebetween3/16"and1/4".Ifsmallercableisutilized,adifferentneoprenebushingmustbeused(mustbecustomersupplied).

Ifanalternateseal-tighttypeconnectorisgoingtobeused,beabsolutelycertainthattherubberbushingwilladequatelysealonthecable.Donotuseaconnectorintendedforpowercable(largeinsidediameter)ifthesensorcableisonly1/4".BesuretouseTeflonthreadtapewhenattachingthenewseal-tightconnector.

Wiringtotheconduithousingsensorsisaccomplishedasfollows:

1. Removethehousingcaptoexposethewiringterminalblock.

2. Insertthecablethroughtheseal-tightconnector,strippingbackapproximately2inchesofsheathingtoexposethewires.

3. Twowireswillbeutilizedforconnectionsatthetransmitterendoftheloop.NormalcolorcodesbeingRED(Loop+)andBLACK(Loop-).Trimoffallunusedwires,includingthebareshieldgroundwire.TopreventaGROUNDLOOPcondition,besuretheshieldmaterialandtheshieldgroundwiredonottouchthesensorhousing.Useaninsulatorsuchaselectricaltapeorheatshrinktubingifnecessary.

4. Stripthetipsoftheremainingwiresbackapproximately3/8ofaninchandtwiststrands(tinningishighlyrecommended).

5. UsingFigure5,maketheproperconnectionstothewiringterminalstrip(locatedinsidetheconduithousing)

Figure 5 - Wiring Terminal Connections

PAGE 9

Section 5 Instrument WiringWiththeproperwiringconnectionsmadeatthesenorendoftheloop,itisnowtimetomakefinalconnectionsattheinstrumentendoftheloop.ThetransmittermayfeedinstrumentssuchasAndersondigitaldisplays,microprocessorbasedcontrollers,chartrecorders,orcustomersuppliedinstrumentation,orPLUS.

5.1 LOOP POWER

TheAndersonSMARTTransmitterrequireslooppowerforoperation.Ratingsareasfollows:

Standard“T”Transmitter: 12-40VDC(Absolute),24VDCNominal,regulatedorunregulated

“T”TransmitterwithLCDDisplay: 16-40VDC(Absolute),24VDCNominal,regulatedorunregulated

Asinherentresistanceassociatedwithcablelengthandsignalreceiverinputmayaffectoperationofthetransmitter,Figure6showssomeguidelinesforlooppowerrequired.

NOTE:Aminimumloopresistanceof250ohmsisrequiredwhencommunicatingwiththetransmitter.Thisinturnrequiresthatthepowersupplyberatedatminimum17voltsfornonindicatingtransmittersand21voltsifanLCDdisplayissuppliedwiththeunit.Theformulasforcalculatingmaximumloopresistanceforanyratedpowersupplyareasfollows:

Ramax(WithoutLCD)_(Vsupply-12)x50

Ramax(WithLCD)=(Vsupply-16)x50

Figure 6 - Loop Power Guidelines

Pleaseconsultwiththeinstallation/servicemanualthatwasprovidedwithyourreceiverforspecificwiringinstructions.MostAndersonreceiver(displays,chartrecorders,etc.)arecapableofsupplyinglooppower.Typicalwiringwouldbeasshownonfollowingpage.

TOTALLOOP

RESISTANCE (OHMS.)

LOOP POWER SUPPLY(D.C. VOLTS)

A = TRANSMITTER ONLY - NO LCD DISPLAY OR COMMUNICATIONSB = TRANSMITTER WITH OR WITHOUT LCD DISPLAY (NO COMMUNICATIONS)C = TRANSMITTER WITH COMMUNICATIONS

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Section 6 Liquid Crystal DisplayThe“T”transmitterisavailablefromthefactory,orfieldupgradeable,withanintegralLCDprocessdisplay.Thedisplayissuppliedfromthefactorypre-calibratedtothespecifiedparameters.

NOTE:Althoughre-calibrationmaybeperformed,noalterationtothedecimalpointlocationmaybemade-thisisafactorysetfunction.

6.1 LCD INSTALLATION

InstallationofanLCDProcessDisplayintoanalreadyexistingtransmitterisasfollows:

1. Topreventpossibledamagetothetransmitterorreceiver,itisrecommendedthatallpowerbedisconnectedbeforeproceeding.

2. Removetheconduitcapfromthesensor.Ifupgradingatransmitterinthefield,youwillbesuppliedwithanewconduitcap(holeincenter).

3. TotheleftofthewiringterminalblockwillbeasmallYELLOWwireloop.Ithasanarrowpointingtoitstating“WITHDISPLAYCUT”.Cutthisloop,makingsurethetwoendsdon’tcomeincontactwitheachotheroranythingelse.

4. InserttheLCDREDwireintothe(DISP+)terminalandtighten.

5. InserttheLCDBLACKwireintothe(DISP-)terminalandtighten.

6. SlidetheLCDdisplayintotheendoftheconduithousing,orientingforproperposition.

Figure 7 - Loop Diagram

TOTAL LOOP RESISTANCE

250 OHMS. MINUMUMFOR COMMUNICATION AMMETER

(4-20 mA dc)

SHIELDGROUND

(ONE POINT ONLY)

SIGNALRECEIVERINPUT

POWERSUPPLY

PER SPECS

HANDHELD

TERMINAL

OPTIONALLOOP -BLACK (-)

LOOP +RED (+)

PAGE 117. Securethenewcapprovided.

8. Applypowertothesystem.

9. Atthispoint,checktobesureyouaregettingaproperreadingIfthedisplayisnotactive,immediatelypowerdowntheloopandcheckyouconnections.Ifyoufeelthedisplayisnotreadingproperly,itmaybenecessarytoperformcalibrationtothetransmitter.RefertoSection8-Calibration.

Section 7 MaintenanceAndersonelectronicsensorsrequireverylittlemaintenance,ifany.Wesuggestthatthesensorbeinspectedat6monthintervalstoensurethattheyarenotbeingphysicallyabused,moistureisnotenteringthehousing,andthatthewiringissound.Calibrationmaybechecked,asrequiredbySOP’s,orwhenerrorsaresuspected.

Section 8 Calibration

Ifyoufeelthattheoutputofthetransmitterisnotcorrect,calibrationoftheunitmayberequired.Thismaybeaccomplishedbyfollowingtheprocedurebelow,orviathe“HART”HHTasoutlinedintheSMARTINTERFACEManual.Section8.1ofthismanualillustratestheproceduresforcalibrationofthetransmitter,withsection8.2coveringcalibrationoftheLCDdisplay.

Equipmentrequired:PressuresourceAccuratereferencegaugeDCMilliampMeter(accurateto.01mA)SmallstraightbladescrewdriverCalculatormASignalgenerator(helpfulforLCDcalibration)

8.1 CALIBRATION -TRANSMITTER

Adjustmentstothetransmitteraremadeviathe“ZERO”and“SPAN”potentiometers.Thesetwoadjustmentsarenon-interactive,meaningchangingthezerowillnotchangethespan.Asgeneralmaintenancetotheunit,azerocheckisrecommendedatapproximately6monthintervals.Ifyourunitiscalibratedatacompoundrange,youwillnotsee4.00mAatatmosphericzero.Asreference,youmayusethefollowingcharttodetermineifyourunitmayrequirecalibration(mostcommonrangesareshown).

NOTE:UsethisprocedureONLYifthe“HART”digitalcommunicationswillriotbeutilizedforcalibration.

SensorRange SensorReadsatAtmosphericZero0-psig-PositivePressure 4.00mA 0psig-30"Hg 4:00mA 30"Hg-15psig 11.92mA 30"Hg-30psig 9.26mA 30"Hg-60psig 7.15mA 30"Hg-100psig 6.05mA

PAGE 12Theoutputofaproperlycalibratedtransmittermaybecalculatedbyusingthefollowingformula:

mAOutput=16X (KNOWNVALUE-LOWENDOFRANGE)+4 TRANSMITTERSPANNOTE:Thetransmittershouldbewiredinacompleteloopatthispoint,oronatestbenchandconfiguredperthediagramshowninFigure7,page10.Althoughnointeractionbetweenzeroandspanoccurs,whenmakingadjustmentsyoushouldbeasclosetothetopandbottomtransmitterrangeaspossible.Thiswillensurethebestpossiblelinearityinthefinalsignaloutput.

1. Exposethetransmittertoaknownzeroreferencepoint.Iftransmitterrangestartsatatmosphericzero,zeroadjustatatmosphericzero.Iftransmitterisacompoundrange,youshouldbeasclosetosensorzeroaspossible.YoumustcalculatetheexpectedmAsignal(useformulaprovedatstartofthissection).

2. Removecapfromtransmitter.

3. WithyourmetersettoDCmA,connecttheRED(Meter+)leadtothe(DISP+)terminal.ConnecttheBLACK(Meter-)leadtothe(DISP-)terminal.

4. DONOTUSETHELCDTOMAKEINITIALSENSORADJUSTMENTS.IftheLCDisnotincalibration,anerrorwillresultinthecalibrationofthetransmitter.TheLCDshouldbecalibratedseparately.SeeSection8.2,page12forproperprocedures.

5. AdjustthetransmitterZEROpotentiometerasshowninFigure2,page6,untilyoueithersee4.00mAifyouareatatmosphericzero,oryourexpectedmAsignalforacompoundrange.

6. Exposethetransmittertoaknowprocessvariablenearthetopendoftherange.

7. Again,usingtheformulaprovided,calculatethemAreadingexpected8. AdjustthetransmitterSPANpotentiometer,showninFigure5,page8,untilyouseeyour

expectedmAoutput.

NOTE:Forpressuretransmitterswithcompoundranges,therangesmustfirstbeconvertedtoallonetypeunitofmeasure.Forexample,a30"Hg-0-30psigunitmaybeconsideredtohavearangeof-14.7psigto30psigforaspanof44.7psig(2.036"Hg-1psi).Becarefulnottolosethe-signwhileperformingthecalculationoftheproperreading.

8.2 CALIBRATION OF LCD DISPLAY

NOTE:BesurethetransmitterisincalibrationbeforeattemptingtoadjusttheLCDdisplay.TheLCDreadingisbasedonmAoutputfromthetransmitter.Therefore,ifthetransmitterisoutofcalibration,thiserrorwillbereflectedintheLCDreading.

ToperformcalibrationoftheLCDdisplay,youmustfirstdeterminetheZeroandSpan.Thisinformationisonastickerlocatedonthebackofthedisplay.AdjustmentsaremadeviaZeroandSpanpotentiometers,seeFigure5forlocation.YoumayuseeithertheHTtransmitteritselftoperformcalibrationofthedisplay,ora4-20mAsignalsimulator.

PAGE 13

CALIBRATIONOFLCDUSING4-20mASimulator

1. DisconnectheLCDdisplayfromthetransmitterbyremovingtheREDandBLACKwiresfromtheirrespectiveterminals.

2. AttachthePOSITIVEleadofthesimulatortotheREDleadoftheLCDdisplay,andtheNEGATIVEleadofthesimulatortotheBLACKleadoftheLCDdisplay.

3. ThesimulatorshouldbesettoPOWEREDoutputmodesothatlooppowerissupplied.Ifyoursimulatorisnotcapableofthisfunction,wiretow9VDCbatteriesinserieswiththe4-20mAsimulator,andtheLCDdisplay.

4. Apply4.00mAtotheLCDdisplay.

5. AdjusttheZEROpotentiometeruntilheLCDmatchestherangeindicatedonthestickerinthespotlabeledZEROCALIBRATION.

6. Apply20.00mAtotheLCDdisplay.

7. AdjusttheSPANpotentiometeruntiltheheLCDmatchestherangeindicatedonthestickerinthespotlabeledSPANCALIBRATION.

8. TheLCDdisplayisnowproperlycalibrated.Re-wirethetransmitteratthistime:

CALIBRATIONOFLCDUSINGTRANSMITTER/PROCESS

1. Tocompletethiscalibration,youmusthaveapressuresourceandaknownaccuratereference.ATthispointyouMUSTbecertainthatthetransmitterisinpropercalibration.Ifnecessary,startwithsection8.1-TransmitterCalibration,page11.

2. ExposethetransmittertoaknowpressureneartheLOWendofthecalibratedrange.

3. AdjustthepotentiometeronthebackoftheLCDdisplaylabeledZEROuntilthedisplaymatchesyourknowreference

4. ExposethetransmittertoaknownpressureneartheHIGHendofthecalibratedrange.

5. AdjustthepotentiometeronthebackoftheLCDdisplaylabeledSPANuntilthedisplaymatchesyourknowreference

6. TheLCDdisplayisnowproperlycalibrated.

PAGE 14

Section 9 Troubleshooting9.1 VOLTAGE CHECK

UsingadigitalmultimeterontheDCvoltsscaleandwiththesensorconnectedtothereceiver,confirmthatthesensorisbeingprovidedthecorrectlooppower.PlacetheRED(Meter+)leadonthe(Loop+)terminal,andtheBLACK(Meter-)leadonthe(Loop-)terminal.Youshouldseebetween12-40VDCforastandardtransmitter,andbetween16-45VDCifyouhaveanoptionalLCDdisplayinstalled.

9.2 CURRENT CHECK

TocheckthemAloop,besurethesensorisconnectedtothereceiver.Openthecaponthetransmittertoexposethewiringterminals.UsingadigitalmultimeteronthemADCscale,connecttheRED(Meter+)leadtothe(DISP+)terminalandtheBLACK(Meter-)leadtothe(DISP-)terminal.YouwillbereadingthemAcurrentloop.Ahighcurrentflow,approaching30mA,indicatesaproblemwiththetransmitter(internalsource).Ifnocurrentflowisobservedthisindicateseitheranopenlooporaproblemwiththetransmitter.Tocheckatransmitterataknowpressure,refertotheCalibrationsectionforinformationonhowtoproperlycalculatethemAoutputattheknownvalue.

9.3 MISCELLANEOUS TROUBLESHOOTING

Symptom ActionNodisplayonreceiver •Checkloopforbrokenwire •Checkreceiverforpowerout(looppower)

Displayonreceiverreadingimproperly •Performcalibrationcheckontransmitter •Performcalibrationcheckonsignalreceiver

TransmitternotoperatingafterLCD •Placeawirejumperfrom(DISP+)terminalto removed(DISP-)terminal

WhentestingLoop,NOcurrentflow •Checkforbrokenconnectionsdetected •Checkloopwiring(incorrectpolarityaffects

FeelfreetocontactAndersonTechnicalServicesDepartmentat1-800-833-0081forfurtherassistancewithtroubleshooting.

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Warranty and Return StatementTheseproductsaresoldbyTheAndersonInstrumentCompany(Anderson)underthewarrantiessetforthinthefollowingparagraphs.Suchwarrantiesareextendedonlywithrespecttoapurchaseoftheseproducts,asnewmerchandise,directlyfromAndersonorfromanAndersondistributor,representativeorreseller,andareextendedonlytothefirstbuyerthereofwhopurchasesthemotherthanforthepurposeofresale.

Warranty

TheseproductsarewarrantedtobefreefromfunctionaldefectsinmaterialsandworkmanshipatthetimetheproductsleavetheAndersonfactoryandtoconformatthattimetothespecificationssetforthintherelevantAndersoninstructionmanualormanuals,sheetorsheets,forsuchproductsforaperiodoftwoyears.

THERE ARE NO EXPRESSED OR IMPLIED WARRANTIES WHICH EXTEND BEYOND THE WARRANTIES HEREIN AND ABOVE SET FORTH. ANDERSON MAKES NO WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO THE PRODUCTS.

Limitations

Andersonshallnotbeliableforanyincidentaldamages,consequentialdamages,specialdamages,oranyotherdamages,costsorexpensesexceptingonlythecostorexpenseofrepairorreplacementasdescribedabove.

ProductsmustbeinstalledandmaintainedinaccordancewithAndersoninstructions.Usersareresponsibleforthesuitabilityoftheproductstotheirapplication.Thereisnowarrantyagainstdamageresultingfromcorrosion,misapplication,improperspecificationsorotheroperatingconditionbeyondourcontrol.Claimsagainstcarriersfordamageintransitmustbefiledbythebuyer.

Thiswarrantyisvoidifthepurchaserusesnon-factoryapprovedreplacementpartsandsuppliesorifthepurchaserattemptstorepairtheproductthemselvesorthroughathirdpartywithoutAndersonauthorization.

Returns

Anderson’ssoleandexclusiveobligationandbuyer’ssoleandexclusiveremedyundertheabovewarrantyislimitedtorepairingorreplacing(atAnderson’soption),freeofcharge,theproductswhicharereportedinwritingtoAndersonatitsmainofficeindicatedbelow.

Andersonistobeadvisedofreturnrequestsduringnormalbusinesshoursandsuchreturnsaretoincludeastatementoftheobserveddeficiency.Thebuyershallpre-payshippingchargesforproductsreturnedandAndersonoritsrepresentativeshallpayforthereturnoftheproductstothebuyer.

Approvedreturnsshouldbesentto: ANDERSONINSTRUMENTCOMPANYINC. 156AURIESVILLEROAD FULTONVILLE,NY12072USA ATT:REPAIRDEPARTMENT

Section 10