Analytical Technology Q46P User manual

ModelQ46P
pHMonitor
HomeOfficeEuropeanOffice
AnalyticalTechnology,Inc.ATI(UK) Limited
6Iron BridgeDriveUnit 1&2GateheadBusiness Park
Collegeville, PA 19426Delph NewRoad, Delph
SaddleworthOL3 5DE
Ph: 800-959-0299Ph: [phone]
610-917-0991
Fax: [phone]Fax: + 44(0)1457-874-468
Email: [e-mail]:[e-mail]

PRODUCT WARRANTY
AnalyticalTechnology,Inc.(Manufacturer) warrantstothe Customerthatifanypart(s)
ofthe Manufacturer'sproductsprovestobe defectiveinmaterialsorworkmanship
withinthe earlierof18 monthsof the dateof shipmentor12monthsof the dateofstart-
up,suchdefectivepartswillbe repaired orreplacedfreeofcharge.Inspectionand
repairstoproductsthoughttobe defectivewithinthewarrantyperiodwillbe completed
atthe Manufacturer's facilitiesinCollegeville,PA. Productson whichwarrantyrepairs
arerequired shall be shippedfreight prepaidtothe Manufacturer. The product(s)willbe
returnedfreightprepaidandallowed ifitisdeterminedbythe manufacturerthatthe
part(s)failed duetodefectivematerialsorworkmanship.
Thiswarrantydoesnotcoverconsumableitems,batteries,orwearitemssubjectto
periodicreplacement includinglampsand fuses.
Gassensors,exceptoxygen sensors,arecovered bythiswarranty,butaresubjectto
inspectionforevidenceofextended exposuretoexcessivegasconcentrations.Should
inspectionindicatethatsensorshavebeen expended ratherthan failed prematurely,the
warrantyshall not apply.
TheManufacturerassumesno liabilityforconsequentialdamagesofanykind,and the
buyerbyacceptanceofthisequipmentwill assumeall liabilityforthe consequencesof
itsuseormisusebytheCustomer,hisemployees,orothers.Adefectwithinthe
meaningofthiswarrantyisanypartofanypieceofaManufacturer's productwhich
shall,when suchpartiscapableofbeingrenewed,repaired,orreplaced,operateto
condemnsuchpieceofequipment.
Thiswarrantyisinlieu ofall otherwarranties(includingwithoutlimitingthe generalityof
the foregoingwarrantiesofmerchantabilityand fitness foraparticularpurpose),
guarantees,obligationsorliabilitiesexpressed orimpliedbythe Manufacturerorits
representativesandbystatuteorruleof law.
Thiswarrantyisvoidifthe Manufacturer's product(s)hasbeen subjecttomisuseor
abuse,orhasnotbeen operated orstoredinaccordancewithinstructions,orifthe
serialnumberhasbeenremoved.
AnalyticalTechnology,Inc.makesnootherwarrantyexpressed orimpliedexceptas
statedabove.

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O&M Manual
Rev-F (8/17)
Table of Contents
PART1- INTRODUCTION.................................. 4
1.1 General............................................ 4
1.2 Features.......................................... 5
1.3 Q46PSystemSpecifications............ 6
1.4 Q46PPerformanceSpecifications
(Common toall variations)................. 7
1.5 General–Q25PpHSensor............. 8
1.6 Sensor Features.............................. 8
1.7 Q25PSensor Specifications ............ 9
PART2–ANALYZER MOUNTING................... 11
2.1 General.......................................... 11
2.2 Wall or Pipe Mount......................... 12
2.3 PanelMounting.............................. 14
PART3–SENSOR/FLOWCELL MOUNTING.. 15
3.1 General.......................................... 15
3.2 FlowTeeMounting........................ 16
3.3 Union Mounting.............................. 17
3.4 Submersion Mounting .................... 18
3.5 Insertion Mounting ......................... 19
3.6 ConventionalpHSensors.............. 21
3.61 Sealed Flowcell.............................. 22
3.62 FlowTeeAdapter........................... 23
3.7 Lock-n-LoadSystem...................... 24
PART4–ELECTRICALINSTALLATION......... 25
4.1 General.......................................... 25
4.2 Power Connection.......................... 26
4.3 RelayConnection........................... 28
4.4 Optional Output or Relay
Connections .................................... 29
4.5 SensorWiring ................................ 30
4.6 Direct Sensor Connection .............. 33
4.7 Junction BoxConnection............... 34
4.8 Combination Electrode Connection .35
4.9 ExternalPreamplifier...................... 37
PART5–CONFIGURATION.............................38
5.1 UserInterface.................................38
5.11 Keys...............................................39
5.12 Display...........................................39
5.2 Software.........................................41
5.21 SoftwareNavigation......................41
5.22 MeasureMenu [MEASURE]...........44
5.23 Calibration Menu [CAL]..................45
5.24 Configuration Menu [CONFIG] .......46
5.25 ControlMenu [CONTROL].............52
5.26 DiagnosticsMenu [DIAG]..............59
PART6–CALIBRATION..................................64
6.1 Overviewand Methods...................64
6.11 Sensor Slope..................................64
6.12 SensorOffset.................................65
6.13 2-Point Calibration Explained .........65
6.14 1-Point Calibration Explained .........65
6.2 Performinga2-PointCalibration.....66
6.3 Performinga1-PointCalibration.....67
6.4 TemperatureCalibration.................69
PART7–PIDCONTROLLERDETAILS...........70
7.1 PIDDescription..............................70
7.2 PIDAlgorithm.................................70
7.3 ClassicalPIDTuning......................72
7.4 ManualPIDOverrideControl.........73
7.5 CommonPIDPitfalls......................73
PART8–MAINTENANCE AND
TROUBLESHOOTING.......................................75
8.1 System Checks..............................75
8.2 Instrument Checks.........................75
8.3 DisplayMessages ..........................76
8.4 CleaningtheSensor.......................80
8.5 ReplacingtheSaltbridgeand
ReferenceBufferSolution.......................81
8.6 Troubleshooting.............................82
SPAREPARTS..................................................84

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Table of Figures
FIGURE 1–Q46 ENCLOSURE DIMENSIONS ..................................................................................11
FIGURE 2-WALLOR PIPE MOUNTING BRACKET ...........................................................................12
FIGURE 3-WALL MOUNTING DIAGRAM ........................................................................................13
FIGURE 4-PIPE MOUNTING DIAGRAM..........................................................................................13
FIGURE 5-115/230 VAC PANEL MOUNT &CUT-OUT ...................................................................14
FIGURE 6-Q25 SENSOR TYPES..................................................................................................15
FIGURE 7-FLOW THROUGH TEE MOUNT .....................................................................................16
FIGURE 8-1.5" UNION MOUNT....................................................................................................17
FIGURE 9-SENSOR SUBMERSION MOUNT ...................................................................................18
FIGURE 10 -S.S. SENSOR INSERTION MOUNT..............................................................................19
FIGURE 11 -CPVC SENSOR INSERTION MOUNT...........................................................................20
FIGURE 12 -(63-0013) COMBINATION PHSENSOR,FLOW TYPE....................................................21
FIGURE 13 -(63-0009) COMBINATION PHSENSOR,SUB.TYPE .....................................................21
FIGURE 14 -SEALED FLOWCELL DETAILS.....................................................................................22
FIGURE 15 -TWIST-LOCK FLOW TEE ...........................................................................................23
FIGURE 16 -LOCK-N-LOAD SENSOR EXPLODED VIEW...................................................................24
FIGURE 17 –Q46 CONNECTIONS ................................................................................................27
FIGURE 18 –Q46 RELAY CONNECTIONS......................................................................................28
FIGURE 19 -OPTIONAL RELAY BOARD WIRING .............................................................................29
FIGURE 20 -OPTIONAL ANALOG OUTPUT WIRING.........................................................................29
FIGURE 21 -CABLE DESCRIPTION,MODEL Q25P.........................................................................30
FIGURE 22 -DETACHABLE SINGLE SHIELDED CABLE,MODEL Q25P..............................................31
FIGURE 23 -Q46P SENSOR CONNECTIONS .................................................................................32
FIGURE 24 -SENSOR CABLE PREPARATION .................................................................................33
FIGURE 25 -JUNCTION BOX INTERCONNECT WIRING ....................................................................34
FIGURE 26 –OEM SENSOR CONNECTIONS,COMBINATION ELECTRODES ......................................35
FIGURE 27 –ATI COMBINATION ELECTRODE CONNECTIONS .........................................................36
FIGURE 28 -EXTERNAL PREAMP FOR CONVENTIONAL SENSOR WIRING.........................................37
FIGURE 29 -USER INTERFACE.....................................................................................................38
FIGURE 30 -SOFTWARE MAP ......................................................................................................43
FIGURE 31 -AUTOMATIC PHBUFFER TABLES...............................................................................48
FIGURE 32 -AUTOMATIC PHBUFFER TABLES (CONT’D)................................................................49
FIGURE 33 -CONTROL RELAY EXAMPLE,HYSTERESIS AND OPPOSITE PHASE................................56
FIGURE 34 -ALARM RELAY EXAMPLE ..........................................................................................57
FIGURE 35 -Q45H ISA (IDEAL)PID EQUATION ............................................................................71
FIGURE 36 -REPLACINGTHE SALTBRIDGE AND REFERENCE BUFFER ............................................81

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O&M Manual
Rev-F (8/17)
Part 1 - Introduction
1.1General
TheModelQ46P providescontinuousmeasurementofpHinaqueoussystems.
It issuitableforpotablewater,wastewater,and awide varietyofprocess water
applications.Q46Pmonitorsmaybe used withQ25P“differential” pHsensorsor
avarietyofconventional“combination”pHsensors.
Monitorsareavailableintwoelectronicversions,auniversalACpowered
monitorforoperationfrom90-260VACanda12-24VDC unit. Both versions
provide two4-20 mA analogoutputsand3SPDTrelays. One analogoutputmay
be configuredforPIDcontrolandoneoftherelaysmaybe configured toprovide
aremotetroubleindication.
TheQ46P isavailablewithafewoptionstoexpandthe capabilitiesofthe
monitor.Usersmayselecteitherathirdanalog4-20 mAoutputoran expansion
cardthatprovidesthree additionallowvoltageSPSTrelays.The expansion
relaysarenot isolatedfromeachother.
Thismonitoralsoprovidesdigitalcommunication capability.Usersmayorder
Q46 systemswitheitherProfibusDP, ModbusRTU,orEthernetcommunications
boardsfactoryinstalled.

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1.2Features
·StandardQ46P Analyzershavefullyisolatedinputsandoutputs.Analogoutputs
areadditionallycompletelyisolated fromeachother.
·Availableineither90-260 VACor12-24VDC powersupplysystems.All features
remainthesameinbothvariations.
·OutputHold,OutputSimulate,OutputAlarm,andOutputDelayFunctions.All
forced changesinoutput condition include bumpless transferforgradualreturnto
on-line signallevelstoavoidsystemcontrolshocks onbothanalogoutputs.
·Three6ampSPDTrelayoutputsandtwoanalog4-20 mAoutputsarestandard.
Softwaresettingsforrelaycontrolincludesetpoint,deadband,phase,delay,and
failsafe.An optional3-relaycard,for0-30Vsignals,isavailabletobringthe total
to6relays.
·SelectablePIDcontrolleron mainanalogoutput. PIDcontrollercanoperatewith
instrument configuredasloop-poweranalyzerorasone ofthe twooutputson the
ACpowered instrument. PIDincludesmanualoperationfeature,and diagnostic
“stuck-controller” timerfeatureforalarm output ofcontrolproblems.
·Digitalcommunicationoption forProfibus-DP, Modbus-RTU.Moreversions
pending. SeeQ46DigitalCommunicationsManualforSpecifications.
·Twoanalogoutputsmaybe configured totrack pHandtemperature.Both
analogoutputscanbeindividuallyprogrammed tofail tospecificvalues.An
optionalthirdoutputisavailable,providingseparateoutputsforpHor
Temperature.
·Lowvoltagerelayexpansion boardprovidesforanalyzercontrolofthe optional
“air blast”sensorcleaningsystemavailableforsubmersion applications.
·Sensordiagnostics monitorglass breakage,sensorleaks,and RTDcondition.
Diagnosticmessagesprovide acleardescription of problems.
·Two-pointand samplecalibration methodsinclude auto-bufferrecognition from
13 built-inbuffertables, withstabilitychecks duringcalibration.
·SelectablePt1000 orPt100temperatureinputs.
·Securitylock featuretoprevent unauthorized tampering.

ATI Q46P pHSystemPart 1–Introduction
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1.3Q46P SystemSpecifications
DisplayedParameters Maininput, 0.00 to14.00pH
Sensortemperature,-10.0to110.0°C (14 to230ºF)
Loop current, 4.00 to20.00 mA
Sensor slope/offset
Modelnumberand softwareversion
Enclosure NEMA4X,polycarbonate,stainless steelhardware,
weatherproofandcorrosion resistant.
Mounting Options Wall orpipe mountbracketstandard.Bracketsuitablefor
either1.5”or2”I.D.U-Boltsforpipe mounting.Panel
mountingbracket optional.
Weight 2lb.(0.9kg)
Display 0.75”(19.1mm) high4-digitmaindisplaywithsign
12-digit secondarydisplay, 0.3"(7.6mm)5x7dotmatrix.
IntegralLED back-lightfor visibilityinthe dark.
Keypad 4-keymembranetype,polycarbonate
Ambient Temperature Service, -20 to60°C(-4to140ºF)
Storage,-30to70°C (-22to158 ºF)
Ambient Humidity 0to95%, indoor/outdooruse,non-condensing.
AltitudeUpto2000m(6562 Ft.)
ElectricalCertification OrdinaryLocation,cCSAus (CSA and ULstandards -both
approved byCSA), pollution degree 2, installation category2
EMI/RFIInfluence Designed toEN 61326-1
OutputIsolation 600 Vgalvanicisolation
Filter(Damping) Adjustable0-9.9minutes dampingto90%step input
change.
TemperatureInput SelectablePt1000 or Pt100 RTDwithautomaticcompensation
Power 90 -260 VAC,50-60Hz, 10 VA max
12-24 VDC,500 mAmax.

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Enclosure NEMA4X,polycarbonate,stainless steelhardware,
weatherproofandcorrosion resistant.
Mounting Options Wall orpipe mountbracketstandard.Bracketsuitablefor
either 1.5”or2”I.D. U-Boltsfor pipemounting.
Panelmountadapter optional.
Conduit Openings Five½” NPTopenings, Adaptercan beremoved to
provide a1” NPTopening inthebottom ofthe enclosure.
Gland sealsprovided butnotinstalled.
Relays, Electromechanical: Three SPDT,6amp@250 VAC, 5amp@24VDC
contacts.Softwareselection for setpoint, phase, delay,
deadband, hi-loalarm, and failsafe.A-Bindicatorson main
LCD, and Cindicatoron lower display.
Expansion Relays: Optional relayboardwith3SPSTlowpower relays.
Relaysrated 2A@30 VDC. Relaysarenotisolated.
Analog Outputs Two4-20 mAoutputs.Outputone programmablefor pHor
PID.Output 2programmablefor pHor Temperature.Max
load 500 Ohmsfor each output.Outputsground isolated
and isolated from each other.Anadditional3rd analog
option isavailable.
1.4Q46P Performance Specifications(Common toall variations)
Accuracy 0.1%of span or better(± 0.01pH)
Repeatability 0.1%of span or better(± 0.01pH)
Sensitivity 0.05%of span (± 0.01 pH)
Stability 0.05%of span per 24hours,non-cumulative
SupplyVoltageEffects ± 0.05%span
InstrumentResponse Time 6secondsto90%of stepinput at lowest setting
TemperatureDrift Span or zero, 0.02%of span/°C
Max.Sensor-Instrument 3,000 ft.(914 meters) w/preamp,
Distance 30 ft.(9.1meters) w/opreamp
SensorTypes ModelQ25PpHw/preamp-5wireinput, orcombination
stylepHelectrodew/TC

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1.5General –Q25P pHSensor
ModelQ25P“differential” pHsensorsarethemostcommonlyused sensorswith
the Q46P monitor.The differentialdesignutilizesasecond glass measuring
electrodecontainedinaninternalbufferasthereferenceelement. This
eliminatestheneed forasilver/silverchloridereferenceusedinconventionalpH
sensordesigns.It isdesigned toperforminthe harshestofenvironments,
includingapplicationsthatpoison conventionalpHsensors.All sealsaredual
o-ringusingmultiplesealingmaterials.
Q25P sensorsareavailablewithachoiceoftwoglass types.Forthe most
demandingindustrialapplications,P1 glass shouldbeused.Thisglass isthicker
and willlastlongerinhighertemperatureand pressureapplications.Onthe
otherhand,P1glass hasaveryhighimpedanceand isnotsuggested forusein
verycoldapplications. P2glass isagood generalpurposeglass that isbetterfor
drinkingwater,wastewater,and lowtemperatureindustrialapplications.This
glass issomewhatthinnerwithlowerimpendenceand can handlecoldwater
moreeasily. Notethatthe salt bridgeisdifferentforthesetwosensors.
1.6Sensor Features
·Ahighvolume,dualjunction saltbridgetomaximizethe in-servicelifetimeof
the sensor.The annularjunction providesalargesurfaceareatominimize
the chanceoffouling.Largeelectrolytevolumeand dualreferencejunctions
minimizecontamination. Thesaltbridgeisreplaceable.
·An integralpreamplifierencapsulatedprovidesalowimpedancesignaloutput
whichensuresstablereadingsinnoisyenvironments.Sensortotransmitter
separation can be up to3,000feet (914meters).
·Pt1000RTD.ThetemperatureelementusedinATIsensorsishighly
accurateandprovidesahighlylinearoutput.
·Availableinvariousconfigurationsincludingsubmersible,flowtype withquick
disconnect, sanitary, and insertion.

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1.7Q25P SensorSpecifications
Measuring Range 0to14.00pH
Sensitivity 0.01 pH
Stability 0.02 pHper 24hours,non-cumulative
WettedMaterials PEEK, ceramic,titanium, glass,Viton,EDPM
(optional: 316stainless steelbody)
TemperatureCompensation Pt1000 RTD
SensorCable 6Conductor(5areused)plus 2shields,
15 feet(4.6meters)standardlength
TemperatureRange -5to+95 °C(23to203 °F)
PressureRange 0to100 psig
MaximumFlowRate 10 feet(3meters) per second
SensortoAnalyzerDistance 3,000 feet(914meters) maximum
SensorBodyOptions 1” NPTconvertible, 1¼” insertion, 1½” or2”sanitary-style
Weight 1lb.(0.45kg)
Notes:1.Thetype ofhardwareusedtomountthe sensormaylimitthemaximum
temperatureand pressureratings.Pleaseconsultthe hardware
manufacturer’sspecificationstoobtainthe relevanttemperatureand pressure
ratinginformation.
2.Themaximumflowratespecificationislowerforprocess solutionswithlow
ionicconductivityorhighsuspendedsolidsconcentration.Highflowratesin
lowionicconductivityprocessesmaycauseameasurementerrorduetostatic
electricaldischarge.Highflowratesinprocesseswithhighsuspendedsolids
concentrationmaydecreasethefunctionallifeofthesensorbyerodingthe
pH-sensitiveglass electrode.