Model PH202G 2-Wire Type pH/ORP (Redox) Transmitterweb-material3.yokogawa.com/PH202_GS_10.us.pdf · General Specifications Model PH202G

GeneralSpecifications

<<Contents>> <<Index>>

Model PH202G2-Wire Type pH/ORP (Redox) Transmitter

Yokogawa Electric Corporation2-9-32, Nakacho, Musashino-shi, Tokyo, 180-8750 JapanTel.: 81-422-52-5617 Fax.: 81-422-52-6792

GS 12B07D02-E

GS 12B07D02-E©Copyright Jan. 20001st Edition Jan. 2000

10th Edition Apr. 2014

n GENERALFlexibility, low maintenance and low installation costs are among the benefits of the EXA PH202 pH/ORP transmitter. Designed to meet the exacting requirements of measuring pH and ORP in the modern industrial environment, it contains many features to ensure peak precision whatever the application.This 2-wire (loop powered) transmitter is housed in a robust IP65 field mountable case. HART® communication is also available. The need for expensive cabling is minimized. The famous EXA sensor diagnostics are enhanced by an improved impedance check, and the addition of a logbook feature. Calibration history is available in the display, and is used to store important configuration, calibration and diagnostic data. Prediction of sensor failure is possible by reference to the logbook.Microprocessor-aided calibration uses internal buffer tables and stability checking to ensure maximum accuracy with minimum effort. Process temperature compensation enhances accuracy in applications where the influence of temperature is seen in process pH changes. pH and ORP or rH measurements can be made simultaneously when an appropriate sensor combination is used.

n FEATURESUniversalpH/ORPPossibletoinputhighimpedancereferenceelectrodeOn-linesensorcheckingProcesstemperaturecompensationDifferentialinputamplifierwithequipotential

screeningFreelyconfigurableITP,slopeandasymmetryEasytouseEXAcontrolpanelPasswordprotectionforalllevelsofsoftwareHART®,PROFIBUS-PA,FOUNDATIONFieldbusH1

communications

n ACCURATE pH MEASUREMENT1. ElectrodeselectionIn order to make precise pH/ORP measurements, thereareanumberofpre-requisites.Specialattentionshouldbepaidtothechoiceofthesensorstoensurecompatibilitywiththechemicalcompositionoftheprocessfluid.Thespeedofresponserequired,thesolidscontentandtheflowrateofthefluidarealsocontributoryfactors.TheGS12B07B02-Egeneralspecificationscoverthechoiceofsensors.

2. Signalprocessing(pH/ORP)Withthecorrectsensorconfiguration,thePH202canmeasure pH and ORP.

3. HighperformancetransmitterThePH202providesexcellentnoiserejection,minimizingthestraysignalsthatcanaffectindustrialpH measurements. Earth loop currents in damp and damagedcablingareeliminatedbytheequipotentialscreening.Itoffersasimpleandeffectiveprocesstemperature compensation in addition to the usual compensationtotheNernstequation.

4. MaintenanceItisimportantthatthesystembewellmaintainedtomake precise pH/ORP measurement. The electrodes mustbeproperlycleanedandregularlycalibrated.Yokogawaonlinecleaningsystemsmaybeusedwherethereissignificantfoulingofthesensors.Otherinfluencesfromtheelectrodeholderscanbelessobvious,butimportantnonetheless.Welldesignedfittingsmakeiteasytoprovidetheroutinemaintenanceneededforbestaccuracy.Flowthroughsubmersion,suspensionandfloattypesofholdersareavailable.

nHARTCOMMUNICATIONOneofthefeaturesofsmartfielddevicesistheirabilitytodetectfaults,eitherinthedeviceelectronicsorinanassociatedsensor.Usingafieldbussystem,suchfaultsarereportedinthedevicestatusbyteineverymessage(assumingthatcommunicationisstillpossible!).ForHART,itisstillusefultofollowtheconventionofindicatingfaultconditionsbysettingtheanalogueoutputcurrenttoavaluewhichisrecognizablybeyondthe normal operating range (including the small amount oflinearover-rangecommonlyallowed).Ifitisstillalive,thecurrentoutputvalueissettoanappropriatevaluewiththeintentionthatahostsystemshouldbeabletosetalarmthresholdsjustoutsidethenormal4to20mArange,toindicatemeasurementout-of-range,andtosetfurtheralarmthresholdstoindicateafaultcondition.

2

AllRightsReserved.Copyright©2000,YokogawaElectricCorporation


GS 12B07D02-E Apr. 15, 2014-00

DDspecificationandothersupportfilesThePH202DeviceDescription(DD)filesareavailableenablingcommunicationscompatibleHOSTdevices(andHHTforHART).OtherfilestosupportAMS,PRMandPDMareavailableaswell.

nPROCESSTEMPERATURECOMPENSATION

ThefigurebelowshowsthestrongchangeinpHwithtemperature,causedbythedissociationconstantofwaterchanging.ThiseffectivelyshiftstheneutralpointfrompH7.InordertoreliablycontrolthepHofsolutionsitisnecessarytocompensateforthechanges.ThePH202transmitterhasasimple-to-operatesystemofprocesstemperaturecompensationtoprovideoptimumaccuracyandbestcontrol.Anapplicationwherethisisparticularlyimportantisinthemeasurementofalkalizedboilerfeedwater.

pH at reference temp.

pH a

t pro

cess

tem

p. pH 11.00 at 25°C

becomes pH 9.80 at 80°C

F2.ai

n3-LEVELOPERATIONThePH202transmitterusesa3-leveloperatingsystemtotakefulladvantageofthemicroprocessorwhileretainingthetraditionalsimplicityofa2-wiretransmitter.Advancedfunctionsareseparatedfromconventionaloperationtoavoidconfusion.Theycanbeactivatedasrequiredforeachindividualapplication.

MAINTENANCElevelThenormalmaintenancefunctionsareaccessiblethroughtheflexiblewindowbypushingthekeysunderneath.Use: NormaloperationandcheckingHow: Simpleoperationbydialogthroughthe

closedfrontcoverExample: Calibrationwithbuffers

COMMISSIONINGlevelFunctionsrequiredtocommissiontheinstrumentarehiddentodiscourageunauthorizedtampering.Thefrontcoverisremovedtorevealthecommissioningmenuand the hidden access key (marked *).Use: FornormalcommissioningHow: Removalofthefrontcoverrevealsthe

access key and second menuExample : Selecting a measuring range

SERVICElevelSpecializedfunctionscanbeadjustedviatheSERVICEmenu.Inthiscaseaccessisbyusing“servicecodes”.Use: OnlyforspecialistfunctionsHow : Through special coded entriesExample : Process temperature compensation

Withthis3-leveluser-friendlyapproach,theinstrumentcanbeoperatedbyanyone.Commissioningisstraight-forwardandneedsnocalibrationequipmentcomparedtoanaloginstruments.Specialistfunctionsavailableviaaccesscodesareinvisibleduringnormaloperation.Allthreelevelscanbeseparatelyprotectedagainstunauthorizedaccessbyapasswordsystemusingathree digit code.

SENSORCHECKING1. On-linechecksReal-time sensor checking in the 2-wire transmitter is oneofthemostimportantfeaturesoftheEXAPH202transmitter.Byspecialcircuitryontheinputboardanalternatingvoltageisappliedtotheliquidearthpinandthesensors.Theimpedanceofthemeasuringelectrode (pH-glass or ORP-metal electrode) and referenceelectrodeareindependentlymeasured.Themeasuredvaluesarecomparedtolimitingvalues.

2. FaultsThepH-sensorischeckedforlowimpedancetodetectbreakageofthebulbandforhighimpedancetodetectan open circuit.TheRedoxsensorischeckedforhighimpedancetodetect an open circuit.Thereferenceelectrodeisalsocheckedforhighimpedancetodetectfoulingofthediaphragm,poisoningofthereferenceliquidornonimmersionofthe sensors.Thesefaultscanbetransmittedtothecontrolroomorremotepanelbyadiscretecurrentoutputof21mAor3.6mAwhenHARTordistributorcomm.isnon-used,3.9mAwhenHARTordistributorcomm.isusedoverthe2-wireconnection.Thefaultisalsoflaggedonthedisplaybyaspecialmarkerfieldandanerrorcodeinthe message display.

3<<Contents>> <<Index>>

AllRightsReserved.Copyright©2000,YokogawaElectricCorporation GS 12B07D02-E

YOKOGAWAMade in the Netherlands

YOKOGAWA

3. Off-linechecksDuringcalibrationofapHmeasuringsystem,theresponseofthesensorsismeasuredandchecked.Sensitivityanddriftarecalculatedandchecked.DuringcalibrationofanORPmeasuringsystem,thedriftofthesensorsiscalculatedandchecked.Ifanyoftheseareoutside the limits, an error is signaled.Thecomprehensivecombinationofon-lineandoff-linecheckingmonitorsallkeyaspectsofthemeasurementtogiveanearlywarning,ifthereadingisfaulty.

nGENERALSPECIFICATIONS1. TransmitterInputspecifications:Dualhighimpedanceinputs(greater than 1012Ω)withprovisionforliquidearthconnection.SuitableforinputsfromglassorenamelpH&referencesensorsandORPmetalelectrodes.

Input ranges:•pH: –2to16pH•ORP: –1500to1500mV•rH: 0to55rH•Temperature: –30to140°C(-20to300°F)8.55kΩNTCsensor:–10to120°C(10to250°F)for10kΩPTCsensor:–20to140°C(0to300°F)(Measuringrangemayalsobelimitedbythe

specificationoftheusedsensor.)Output ranges:•pH: min.1pHmax.20pH•ORP: min.span100mVmax.span3000mV•rH: min.2rHmax.55rH•Temperature: min.25°Cmax.200°C (for8.55kΩNTCsensormax.120°C)

Output signal: 4-20mADClooppowered,isolatedfrominput. Withthepossibilityof21mA“FAIL”signal

(burnup)and3.6mA(burndownwhenHARTordistributorcomm.isnon-used),3.9mA(burndownwhenHARTordistributorcomm.isused).

Temperature compensation:•Range: –30°Cto140°C(-20to300°F) (for8.55kΩsensor–10°Cto120°C)

Sensor types: Pt100,Pt1000,3kΩPTC,5.1kΩPTC,8.55kΩNTC,350ΩPTC,6.8kΩPTC,10kΩPTC

AutomaticormanualcompensationtoNernstequation.Processcompensationbyconfigurablecoefficient.AdjustableITP(Iso-thermalpointofintersection).

Calibration:Semi-automatic,usingtablesintransmitterforpH

4,7&9buffersolutions,orusinguser-definedtables,withautomaticcheckofmeasurementstability.

Manual,usingstandardsample,bycorrectingreadingtovalueofstandard.

Calibrationbyslopeandasymmetrypotentialsetting. (IEC746-2)

Logbook: Softwarerecordofimportanteventsanddiagnosticdata.AvailablethroughHARTlink,withdiagnosticinformationavailablein the display.

Serial communication: Bi-directional digital communication

superimposed on the 4-20 mA signal.Display: Customliquidcrystaldisplay,withamain

displayof31/2digits12.5mmhigh. Messagedisplayof6alphanumeric

characters, 7 mm high. Warningflagsandunits(pHandmV).Powersupply: Nominal24voltDClooppowered

system.PH202G:17to40V,seeFig.1.

Maximum load resistance:For the PH202G, see Fig. 1.200ΩorlesswiththePH201G50ΩorlesswiththeSDBT

00

200180

400

600800

10001150

17 18 20 25 30 35 40F0201E.aiVoltage (V)

Load

Res

ista

nce

(Ω)

Possible

Fig.1Supplyvoltage/loaddiagramforthePH202G

Performance:(Thespecificationsareexpressedwithsimulated inputs.)pH-Linearity: ±0.01pH•Repeatability:±0.01pH•Accuracy:±0.01pH

ORP-Linearity: ±1mV•Repeatability:±1mV•Accuracy:±1mV

TemperaturewithPt1000,3kΩPTC,5.1kΩPTC,8.55kΩNTC,350ΩPTC,6.8kΩPTC,10kΩPTC

•Linearity:±0.3°C•Repeatability:±0.1°C•Accuracy:±0.3°C

Temperature with Pt100•Linearity:±0.4°C•Repeatability:±0.1°C•Accuracy:±0.4°CNote:Thefollowingtoleranceisaddedtoabove

performance.mAoutputtolerance: ±0.02mAof“4-20mA”Ambientoperatingtemperature:–10to+55°CStoragetemperature: –30to+70°CHumidity: 10 to 90% RH (Non-condensing)

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4



GS 12B07D02-E

Housing :Case: Cast aluminum case with chemically

resistant coatingCover: Polycarbonatewindow.Casecolor: Off-white(EquivalenttoMunsell

2.5Y8.4/1.2)Covercolor: DeepseaMossgreen(Equivalentto

Munsell 0.6GY3.1/2.0)

Groundingterminal

Power/Outputcable gland

Sensorcable gland

Cableandterminals: ThePH202isequippedwithterminals

suitablefortheconnectionoffinishedcablesinthesize:0.13to2.5mm(26to14 AWG)

Cableentry: 2cableglands1/2NPT.Thecableglandswillformatightsealoncableswithanoutsidediameterintherangeof6to12mm (0.24 to 0.47 inches).

8.3m

m o

r les

s

8.3m

m o

r les

s

F0307.ai

2.5m

m o

r les

s

Pin-shaped terminal Ring-shaped terminalfor option code /TB.

Fork-shaped terminalfor option code /TB.

RequirementofconnectingwithexternalinstrumentsTerminalforpincable

terminalScrewterminal(option/TB)

Crimp contact forcable

Pin-shaped crimp contact withsleeveinsulator

Ring-shapedorfork-shaped crimp contact

Usablecontact max. 2.5 mm

Crimp contact shown as thefiguresseeupperthistable,forM3screw

Torqueforfixing 0.5N∙morless 1.35N∙m(recommended)

Example ofcrimpcontact*

WeidmullerCo.,Ltd.make: H0.34/10, H0.5/12, H1/12, H1.5/12S

JST,Mfg.Co.,Ltd.make:VD1.25-3(Ringshape),VD1.25-S3A(Forkshape)

*Note:Othercrimpcontactmayberequired,dependingoncore-cablediameter.

Construction: WeatherresistanttoIP65,NEMA4Xand Type 3S standards

Mounting: Pipe, wall or panel mounting, using optional hardware

Weight: Approx. 1.6 kgDataprotection:EEPROMforconfigurationand

logbook,andlithiumcellforclock.Automaticsafeguard: Returntomeasuringmode

whennosafeguardkeystrokeismadefor10 min.

Operationprotection:3-digitprogrammablepassword.

Sensor impedance checking: Independent impedance check on

measuringandreferencesensorelements, with temperature compensation.

Displayofsensorimpedanceonmessagelineofdisplay.

FAILflagineventof“outoflimits”impedance,andthepossibilityof21mAor 3.6 mA when HART comm. is non-used (3.9 mA when HART comm. is used) error signal.

Signal processing (pH/ORP): The PH202 can measure pH or ORP.

UsingtheFU20allowssimultaneousmeasurementanddisplayofpHandORP.ItalsoallowsdisplayandoutputofpH.

EMCConformitystandards(PH202G) , EN61326-1ClassA,Table2(Foruseinindustrial

locations)EN 61326-2-3EN61326-2-5(Profibuscommunicationmaybe

influencedbystrongelectromagneticfield.)KoreaElectromagneticConformityStandardClassA

한국 전자파적합성 기준

HART®communicationsInput: Two-wire system, 4-20 mA DCPowersupply:PH202G:upto40voltsNote: The transmitter contains a switched power

supply,drawingitsenergyfromthe0-4mAsectionofthesignal.Consequentlythe17voltlimitisappliedat4mA.Thecharacteristicoftheunitissuchthataboveabout7mAontheoutput,theterminalvoltagecandropto14.5voltswithoutproblem.

Transmission:Isolatedoutputof4to20mADC.Signal: Maximumload425Ωat24VDC Burntosignalfailureacc. NAMURRecommendationNE43

(18.01.1994)Operating range: 3.9 to 21mACommunication: HART®,1200Baud,FSK

modulated on 4 to 20 mA signalConfiguration:Localwith6keysSoftware: FirmwarebasedonYokogawastack.Hardware:YokogawaHARTModemF9197UBOther Control systems: Yokogawa PRM,

Rosemount AMS, Siemens PDMHand Terminal: Rosemount HHT 275/375Output span:

- pH: min 1 pH, max 20 pH. (max 90% zero suppression)

TheinstrumentisuserprogrammableforlinearornonlinearpHranges.

Cablespecification: 0.5mmdiameteror24AWGovermaximumlengthof1500m

DDspecification: ThePH202DeviceDescriptionisavailableenablingcommunications with the Handheld communicatorandcompatibledevices.

PROFIBUS-PAcommunicationsInput signal: DigitalSupplyvoltage: 9to32VDCOperating current: 26.0 mAOperatingvalues: AccordingtoIEC1158-2

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Busconnection: FieldbusinterfacebasedonIEC 1158-2 according to FISCO-Model

Powersupply:Powersupplyisachieveddependantontheapplicationbymeansofsegmentcoupler

Datatransfer:AccordingtoPROFIBUS-PAprofileclassBbasedonEN50170andDIN19245 part 4

GSDfile: Theactualfilecanbedownloadedfromwww.profibus.com

Configuration:Localwith6keysSoftware: FirmwarebasedonSiemensDPC31stack.Hardware: PC-orPCMCIA-interfacesfromSiemensOther control: Siemens PDM systemsElectrical connection: Terminals acc. to IEC 1158-2Fieldbus-cable-types: Twistedandshieldedtwo

wirecableaccordingtorecommendationbasedonIEC1158-2

Cablediameter: 6 to 12 mm (0.24 to 0.47 inch)

FOUNDATIONFieldbusH1communicationsInput signal: DigitalSupplyvoltage: 9to32VDCOperatingcurrent: 26.0mA(basecurrent)Operatingvalues: AccordingtoIEC1158-2Busconnection: Fieldbusinterfacebasedon

IEC 1158-2 according to FISCO-ModelPowersupply:Powersupplyisachieveddependant

ontheapplicationbymeansofsegmentcoupler

Datatransfer:FFSpecificationRev.1.4,BasicdeviceFunctionblocks: 3xAI,Transducer,ResourceFiles: Actualfilecanbedownloadedfromour

homepageConfiguration:Localwith6keys,Software: NationalInstruments,NI-FBUSconfiguratorHardware: FBUS-interfacesfromNationalInstruments

(AT-FBUSandPCMCIAFBUS)Other control systems: Yokogawa PRM, DMT

2. DedicatedDistributorPH201G(StyleB)Thisdistributor,designedexclusivelyforusewiththesepHtransmitter,suppliesdrivepowertothe2-wiretransmitterwhilesimultaneouslyreceiving4to20mADCcurrentsignalfromthetransmitterandconvertingitto1to5VDCvoltagesignal;italsosimultaneouslyreceivesadigitalsignalsuperimposedon4to20mADCsignal,andprovidescontactoutputsduringhold,failure,and/orcleaning.Acurrentlimiterfunctionisbuiltintothisunitsoitcancontinuetooperateproperlyevenwithashortcircuitonthe transmitter side.

<Input/OutputSignalSpecifications>Numberofinputpoints(Numberoftransmitterunits

connectable):1pointOutputsignal:1to5VDC(2points)Loadresistance:2kΩorless(1to5VDCOutput)Isolationsystem:Loopisolationtype

<Mounting/Form>Mounting method: Indoor rack mountingConnection method: External signal connection:

M4 screw terminal connectionPower supply / Ground connection:100V: JISC8303groundtype2plug

connection220V: CEE7VII(Europeanelectricaldevice

standard) plug connection

Cablelength: 300mmExternal dimensions: 180H x 48W x 300D mmWeight: Approx. 1.7 kg (Including rack and case)

<StandardSpecifications>Accuracy: ±0.2%ofspanTransmittersupplyvoltage: 26.5±1.5VDCMaximum current and power consumption24VDC: Approx.4.8W100VAC: Approx.7VA220VAC: Approx.11VA

Insulation resistanceBetween I/O terminals and ground pin: 100MΩ/500VDCBetween power supply pins and ground pin: 100MΩ/500VDC

<OperatingSpecifications>Ambienttemperature: 0to50°CAmbienthumidity: 5 to 90 % RH (Non-condensing)Power supply: Dual use AC/DC100V: DCpower20to130V,nopolarityAC

power80to138V,47to63Hz220V: DCpower120to340V,nopolarityAC

power138to264V,47to63Hz<ContactOutput>

Contactrating:250VAC,maximum100VA 220VDC,maximum50VAHold contact output: N.C. 1 contact, Normally energized Contactcloseswhenpowerisoffor

during maintenance.Failure contact output: N.C. 1 contact, Normally

energized Contactcloseswhenpowerisoffor

duringfailure.Cleaning contact output: 1 contact, Close during

cleaning only Usedasdrivecontactforsolenoidvalve

forcleaning.<RegulatoryCompliance>

KoreaElectromagneticConformityStandardClassA한국 전자파적합성 기준

Apr. 15, 2014-01

6



GS 12B07D02-E

System Configuration Example

pH or ORPSensor

2-wire pH/ORP TransmitterPH202G (General purpose type)

Dedicated DistributorPH201G

Analog output 1 to 5 V DC Output Failure contact outputMaintenance contact output

General Distributor

Power supply20 to 130 V DC or 80 to 138 V AC, 47 to 63 Hz

Power supply

Contact outputs are available on the dedicated distributor PH201G.

or

nMODELANDSUFFIXCODES1. 2-WirepH/ORPTransmitter(Non-explosionprooftype) [Style : S3]

Model SuffixCode OptionCode DescriptionPH202G ••••••••••••••••••••••••••• •••••••••••••••••• 2-Wire pH/ORP Transmitter (*1)

Type -E-C-U-P-F

••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••

mA with HART (For other regions)mA with HART (Canada type)mA with HART (North America type)ProfibusFF

Language -J-E

••••••••••••••••••••••••••••••••••••

JapaneseEnglish

Option Mounting Hardware

Hood

Tag PlateConduit Adapter

/U/PM/H/H2/SCT/AFTG/ANSI/TB/X1

Pipe,wallmountingbracket(Stainlesssteel)Panelmountingbracket(Stainlesssteel)Hoodforsunprotection(Carbonsteel)Hoodforsunprotection(Stainlesssteel)Stainless steel tag plateG 1/21/2 NPTScrew terminal (*2)Epoxybakedfinish(*3)

*1: ThePH202GcanbealsousedasORPtransmitter.(Settingcanbemadeinthefield.)*2: Itcanbespecifiedwhenthesuffixcode“-E”or“-C”or“-U”isselected.*3: The housing is coated with epoxy resin.

2. Distributor(DedicatedEXASeries)

Model SuffixCode OptionCode DescriptionPH201G ••••••••••••••••••••••••••• •••••••••••••••••• Distributor

Power Supply -A1-A2

••••••••••••••••••••••••••••••••••••

100VAC220VAC

― *B •••••••••••••••••• Style B

Option /TB Terminalforpowerconnection

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nDIMENSIONSpH/ORP Transmitter Panel Mounting (Option code : /PM)

Unit:mm

934

162202

155

180 30

77

50

96

42

68

115

130

56±0.2

Hood (Option) Option code : / H

Grounding terminal(M4 screw)

Transmission signal cable inlet Cable gland : Pg13.5

Sensor cable inletcable gland (Pg13.5)

2- M6 screws

1.ai

1 to 10

205185

3.98038

6030

Panel thickness

Panel mountingbracket

173 +1.1 0

156 +1.1 0

121

121

138 138

PANEL CUTOUT 5.ai

ConduitAdapter(Option) PanelMountingwhenusingtwo(2)self-tapingscrews

49

Adapter for Conduit Work (optional)(option code : / AFTG, / ANSI)

Adapter

G1/2 screw (/AFTG)1/2 NPT screw (/ANSI)

Approx.55

3.5(0.14)18

.5(0

.72)

Unit: mm (inch)+10

+1 0

PANEL CUTOUTSPACING PANEL CUTOUT

Pipe/WallMounting(Optioncode:/U)

56

2-Ø6.5

4-Ø10

70

200

77

115

Pipe mounting(Vertical)

Pipe mounting(Horizontal)

Nominal 50 A (O.D. Ø60.5 mm) 4.ai

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8



GS 12B07D02-E

48

180

2-Ø5.8Mounting Hole

Terminal configuration

303

136

79

PH201G Dedicated Distributor (Style B)

"/TB" Terminal for Power Connection

Terminal configuration F11-1.ai

Unit : mm

nWIRINGDIAGRAMSExampleofNon-ExplosionproofSystem

15

Terminal Box PH202GpH/ORP Transmitter

16

13

12

11

14

PH201G Distributor

SDBT Distributor

15

16

13

+

-

A(+)

B(-)

Output Signal (1 to 5V DC)

Output Signal (1 to 5V DC)

Output Signal(1 to 5V DC)

1(+)

2(-)

(+)A

(-)B

C

e

WASH

f

(CMN)D

G

12

11

14c

FAIL

da

Hold

b

F

HOutput Signal (1 to 5V DC)

F

H

WiringDia1.ai(100V or less)Ground

pH/ORPSensor

*1 *1

*2

*1: Use a 2-conductor shielded cable with an outside diameter of 6 to 12 mm. Shield must be connected to internal terminal G of transmitter and left unconnected at the other side.*2: Transmitter must be grounded using external terminal: for general purpose version ground resistance of PH202G should not exceed 100V (Japanese Class D grounding).

Apr. 15, 2014-00



WiringExampleforSensors

15PH8EFPPH8ERPPH8EHP

*2

Terminal Box*1

(WTB10-PH1 or BA10)PH202pH/ORP Transmitter

PH202pH/ORP Transmitter



16

13

12

11

14

15

16

13

12

11

14

General pH electrode

Separate electrodes pH/Ref electrode

15HA405HF405DPA405DPAS405

SA405

*2

Terminal Box*1

(WTB10-PH2)

16

13

12

11

14

15

16

13

12

11

14

Special pH electrode

F9-2.ai

Note : Both "SE(14)" terminals of the pH detector is connected to the "SE(14)" terminal of the PH202. Nothing is connected to the "S(16)" terminal of the PH202.

*

*

*

*

RedBlueRedBlackRedBlueBlue

11 Temperature12 Temperature13 Reference14 Solution ground15 Glass (measure)16 Shield17 Shield

Cable markers

Red

Yellow

Green

temp ref. pH

*

*

*

Cable markers

Combined pH/ref electrode

RedBlueBlueBlackRedWhite

11 Temperature12 Temperature13 Reference14 Solution ground15 Glass (measure)16 Shield17 Shield

Blue

Green

temp pH/ref.

*1 Terminal box is used only where pH/ORP transmitter is installed remotely from electrodes (normally not needed). *2 This cable is specified in the option code for the terminal box (WTB10), or extension cable (WF10).

15OR8EFGOR8ERG

*2

16

13

12

11

14

15

16

13

12

11

14

General ORP electrode

15HA485DPA485DPAS485

*2

16

13

12

11

14

15

16

13

12

11

14

Special ORP electrode

*1 Terminal box is used only where pH/ORP transmitter is installed remotely from electrodes (normally not needed). *2 This cable is specified in the option code for the terminal box (WTB10), or extension cable (WF10). F9-2-1.ai

Terminal Box*1

(WTB10-PH1 or BA10)PH202pH/ORP Transmitter


Terminal Box*1

(WTB10-PH2)

*

*

*

pH/ORP Transmitter

RedBlackRedBlueBlue

11 Temperature12 Temperature13 Reference14 Solution ground15 Metal (measure)16 Shield17 Shield

Red

Yellow

Separate electrodes ORP/Ref electrode

Cable markers

ref. ORP ORP/ref

*

*

pH/ORP Transmitter

Blue

RedWhite

11 Temperature12 Temperature13 Reference14 Solution ground15 Metal (measure)16 Shield17 Shield

Blue

Combined ORP/Ref electrode

Cable markers

Notes1. A temperature sensor maybe connected to 11 & 12, for temperature indication.

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10



GS 12B07D02-E

WiringofthePH20/FU20

Conventional pH (& ORP) wiringConnect the PH20 or FU20 to the EXA or EXAxt PH analyzeras shown. With this configuration, it is possible to measureORP (or rH) at the same time.

(11)

(12)

(13)

(17)

(14)

(15)

(16)

11

12

13

14

16

15

pH/ORP TransmitterpH (& ORP) WIRING DIAGRAM

Wiring for ORP measurement with normal r eferenceConnect the PH20 or FU20 to the EXA PH analyzer as shown.

(11)

(12)

(13)

(17)

(14)

(15)

(16)16 15

11

12

13

14

(Not used)

pH/ORP TransmitterORP WIRING DIAGRAM with normal reference

Wiring for ORP measurement with pH r eferenceConnect the PH20 or FU20 to the EXA Glass PH analyzer asshown.

(11)

(12)

(13)

(17)

(14)

(15)

(16)

13

11

12

15

14

(Not used)

16

pH/ORP TransmitterORP WIRING DIAGRAM with pH sensor as reference

Toconnecttheothersensorsystems,followthegeneralpatternoftheterminalconnectionsaslistedbelow:11 & 12 Temperature compensation resistor input (= T1 and T2)13 Inputno.2(normallythereferenceelement)=RE17 Screen(shield)forinputno.214 Liquidearth(solutionground)connection=SEorLE15 Input no. 1 (normally the measuring element)= GE16 Screen(shield)forinputno.1=SorG

Apr. 15, 2014-00



InquirySpecificationsSheetfor2-WirepH/ORP(Redox)TransmitterSystemMakeinquiriesbyplacingcheckmarks(√)inthepertinentboxesandfillingintheblanks.

1. GeneralCompanyname;___________________________________Contactperson;________________Section;________________Department;________________Plantname;___________________________________Measurementlocation;_________________________________Purposeofuse; Indication, Record, Alarm, ControlPowersupply;_______VAC_______Hz

2. MeasurementConditions(1)Processtemperature;_______to_______Normally______________[°C](2)Processpressure;______________Normally______________[kPa](3)Flowrate;______________Normally______________[L/min](4)Flowspeed;______________Normally______________[m/sec](5) Slurry or contaminants, No, Yes(6)Nameofprocessfluid;____________________________(7)Compositionofprocessfluid;____________________________(8)Others;___________________________________

3. InstallationSite(1)Ambienttemperature;_____________________________(2) Installation location, Outdoors, Indoors______________(3)Others;___________________________________

4. UserRequirements(1)Measuringrange; pH 0 to 14, ______________(2)Transmissionoutput; 4 to 20 mA DC, HART®,PROFIBUS-PA,FOUNDATIONFieldbusH1(3)Systemconfigurationselection; Sensor, Holder, pH/ORP transmitter, Cleaning system, Terminalbox, Accessories(4)Electrodecablelength; 3m, 5m, 7m, 10m, 15m, 20m, _____m(5)Electrodeoperatingpressure; 10 kPa or less, Greater than 10 kPa(6)Typeofholder; Guide pipe, Submersion, Flow-through, Suspension, Angledfloatingball, Verticalfloatingball(7)Cleaningmethod; No cleaning, Ultrasoniccleaning, Jet cleaning, Brush cleaning(8)Sampletemperature;–5to105°C,–5to100°C,–5to80°C(9)Others; ___________________________________

Apr. 15, 2014-00Subjecttochangewithoutnotice.

Documents

Model PH202G 2-Wire Type pH/ORP (Redox) Transmitterweb-material3.yokogawa.com/PH202_GS_10.us.pdf · General Specifications Model PH202G