model ph202g 2-wire type ph/orp (redox) transmitter · pdf fileflexibility, low maintenance...
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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
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<<Contents>> <<Index>>
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.
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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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<<Contents>> <<Index>>
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
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<<Contents>> <<Index>>
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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AllRightsReserved.Copyright©2000,YokogawaElectricCorporation GS 12B07D02-E
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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<<Contents>> <<Index>>
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).
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WiringExampleforSensors
15PH8EFPPH8ERPPH8EHP
*2
Terminal Box*1
(WTB10-PH1 or BA10)PH202pH/ORP Transmitter
PH202pH/ORP Transmitter
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
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.
Apr. 15, 2014-00
10
AllRightsReserved.Copyright©2000,YokogawaElectricCorporation
<<Contents>> <<Index>>
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
11<<Contents>> <<Index>>
AllRightsReserved.Copyright©2000,YokogawaElectricCorporation GS 12B07D02-E
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.