Analytical Technology Q45D/60 User manual

Model Q45D/60
Optical D.O. Monitor
System
(Q45DSOFTWAREVERSIONS4.02 AND HIGHER)
HomeOffice EuropeanOffice
AnalyticalTechnology, Inc.AnalyticalTechnology
6Iron Bridge DriveBankChambers, 33 StamfordSt.
Collegeville,PA 19426 Mossley, Ashton-u-Lyne OL50LL
Ph: [phone] Ph: 0800-018-4020
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PRODUCT WARRANTY
AnalyticalTechnology,Inc.(Manufacturer)warrantstotheCustomerthatifanypart(s)
ofthe Manufacturer'sproductsprovestobe defectiveinmaterialsorworkmanship
withintheearlierof18 monthsofthe dateofshipmentor12 monthsofthe dateofstart-
up,suchdefectivepartswillbe repaired orreplaced free ofcharge.Inspection and
repairstoproductsthoughttobe defectivewithinthewarrantyperiodwillbecompleted
atthe Manufacturer'sfacilitiesinCollegeville,PA.Productson whichwarrantyrepairs
arerequired shallbe shipped freight prepaidtothe Manufacturer. The product(s)will be
returned freightprepaidandallowed ifitisdetermined bythemanufacturerthatthe
part(s)failed due todefectivematerialsorworkmanship.
Thiswarrantydoesnotcoverconsumableitems,batteries,orwearitemssubjectto
periodicreplacement including lampsand fuses.
Gassensors,exceptoxygen sensors,arecovered bythiswarranty,butaresubjectto
inspection forevidenceofextended exposuretoexcessivegasconcentrations.Should
inspection indicatethatsensorshavebeen expendedratherthanfailedprematurely,the
warrantyshallnotapply.
The Manufacturerassumesno liabilityforconsequentialdamagesofanykind,and the
buyerbyacceptanceofthisequipmentwill assumeall liabilityforthe consequencesof
itsuseormisusebythe Customer,hisemployees,orothers.Adefectwithinthe
meaning ofthiswarrantyisanypartofanypieceofaManufacturer'sproductwhich
shall,when suchpartiscapableofbeing renewed,repaired,orreplaced,operateto
condemnsuchpieceof equipment.
Thiswarrantyisinlieuofallotherwarranties(including withoutlimiting the generalityof
the foregoing warrantiesofmerchantabilityand fitness foraparticularpurpose),
guarantees,obligationsorliabilitiesexpressed orimplied bythe Manufacturerorits
representativesand bystatuteorruleoflaw.
Thiswarrantyisvoidifthe Manufacturer'sproduct(s)hasbeen subjecttomisuseor
abuse,orhasnotbeen operated orstored inaccordancewithinstructions,orifthe
serialnumberhasbeenremoved.
AnalyticalTechnology,Inc.makesno otherwarrantyexpressed orimplied exceptas
stated above.

O &MManual
Revision C(7/09) -2-
Table of Contents
PART1-INTRODUCTION...............................................................................................................................4
1.1 General...................................................................................................................................................4
1.2 StandardSystem.....................................................................................................................................4
1.3 Features..................................................................................................................................................4
1.4 Q45D/60SystemSpecifications..............................................................................................................6
1.5 Q45DPerformance Specifications...........................................................................................................8
PART2–ANALYZERMOUNTING.................................................................................................................9
2.1 General...................................................................................................................................................9
Figure2-1Q45EnclosureDimensions,ACPoweredUnits(ATI-0706)...................................................... 10
Figure2-2Q45EnclosureDimensions,2-WireandBatteryUnits(ATI-0655) ............................................ 11
2.2 WallorPipeMount............................................................................................................................... 12
Figure2-3WallorPipemountBracket(ATI-0707)..................................................................................... 12
Figure2-4WallMountingDiagram(ATI-0709)......................................................................................... 13
Figure2-5PipeMountingDiagram (ATI-0710............................................................................................ 13
2.3 PanelMount, ACPoweredMonitor....................................................................................................... 14
Figure2-6115/230VACPanel MountandCut-out(ATI-0711) .................................................................. 14
PART3–OPTICALD.O.SENSOR.................................................................................................................15
3.1General...................................................................................................................................................... 15
Figure3-1SubmersibleD.O.SensorAssembly(ATI-0870)......................................................................... 15
3.2OpticalSensing.......................................................................................................................................... 16
Figure3-2OpticalSensingElement............................................................................................................ 16
3.3 SubmersionMounting........................................................................................................................... 17
Figure3-3SubmersibleSensorMountingAssembly(ATI-0872)................................................................. 17
Figure3-4Mounting AssemblyDetail (ATI-0873)...................................................................................... 18
PART4–ELECTRICALINSTALLATION....................................................................................................19
4.1 General................................................................................................................................................. 19
4.2 Two-Wire............................................................................................................................................. 19
Figure4-1Loop-Power&SensorConnections(ATI-0874)....................................................................... 20
4.21 LoadDrive............................................................................................................................................ 21
4.3 115/230VACw/Relays......................................................................................................................... 21
Figure4-2LinePowerConnection(ATI-0761) ........................................................................................... 23
Figure4-3RelayContacts(ATI-0712)....................................................................................................... 24
4.4 SensorWiring....................................................................................................................................... 24
4.5 JunctionBoxConnection...................................................................................................................... 25
Figure4-4JunctionBoxInterconnectWiring (ATI-0875).......................................................................... 25
PART5–CONFIGURATION..........................................................................................................................26
5.1 UserInterface ....................................................................................................................................... 26
Figure5-1UserInterface (ATI-0654)......................................................................................................... 26
5.11 Keys..................................................................................................................................................... 27
5.12 Display................................................................................................................................................. 27
5.2 Software............................................................................................................................................... 29
5.21 SoftwareNavigation............................................................................................................................. 29
Figure5-2SoftwareMap........................................................................................................................... 31
5.22 MeasureMenu[MEASURE]................................................................................................................. 32
5.23CalibrationMenu[CAL].......................................................................................................................... 33
5.24 ConfigurationMenu [CONFIG]........................................................................................................... 34

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5.25 ControlMenu[CONTROL]................................................................................................................. 38
Figure5-3ControlRelayExample, HysteresisandTwoOppositePhaseOptions........................................ 41
Figure5-4AlarmRelayExample............................................................................................................... 42
5.26DiagnosticsMenu [DIAG]...................................................................................................................... 43
PART6–CALIBRATION................................................................................................................................47
6.1General...................................................................................................................................................... 47
6.11 D.O.SpanCal(1-spl)............................................................................................................................ 47
6.12 DissolvedOxygenAirSpanCal(%sat)................................................................................................ 49
6.13 DissolvedOxygenZeroCal................................................................................................................... 50
6.2 TemperatureCalibration........................................................................................................................ 52
PART7–PID CONTROLLERDETAILS.......................................................................................................53
7.1 PIDDescription.................................................................................................................................... 53
7.2 PIDAlgorithm...................................................................................................................................... 53
Figure7-1Q45ISA (Ideal)PIDEquation................................................................................................... 54
7.3 ClassicalPIDTuning............................................................................................................................ 55
7.4 ManualPIDOverrideControl............................................................................................................... 56
7.5 CommonPIDPitfalls............................................................................................................................ 56
PART8–SYSTEMMAINTENANCE.............................................................................................................. 58
8.1 General................................................................................................................................................. 58
8.2 AnalyzerMaintenance........................................................................................................................... 58
8.3 SensorMaintenance.............................................................................................................................. 58
PART9–TROUBLESHOOTING....................................................................................................................59
9.1 General................................................................................................................................................. 59
9.2 ExternalSourcesofProblems................................................................................................................ 59
9.3 AnalyzerTests...................................................................................................................................... 60
9.31 DisplayMessages................................................................................................................................. 61
Figure9-1Q45DDisplayMessages............................................................................................................ 62
Figure9-1Q45DDisplayMessages(continued).......................................................................................... 63
9.4 SensorTests.......................................................................................................................................... 63
Figure9-2Pt1000RTDTable.................................................................................................................... 64
Figure9-3Reference –BarometricPressureConversion............................................................................. 65
Figure9-4Reference –OxygenSolubilityTable......................................................................................... 66
SPAREPARTS..................................................................................................................................................67

O &MManual
Revision C(7/09) -4-
Part 1-Introduction
1.1 General
The ModelQ45Disaversatileon-line monitoring systemdesigned forthe
continuousmeasurementofdissolved oxygen insolution.The fullscale
operatingrange ofthesystem0-40 ppm,and the sensing systemwilloperateon
waterstreamswithtemperaturesranging from0to50°C.
Whilethe Q45Dmaybe used witheitheropticaloxygen orgalvanicmembrane
sensors, thismanualisspecificforsystemsutilizing ATI’sopticalD.O. sensor.
Q45D/60 Monitorsareavailableinthreeelectronicversions,aloop-powered 2-
wiretransmitter,an ACpowered monitorwithintegralalarmrelays and dual4-20
mAoutputcapability,ora9VDC batteryoperated portableunitwithtwovoltage
outputsand built-indatalogger.
1.2 StandardSystem
The standardmodelQ45D/60 systemincludestwocomponents,the Q45D
analyzerand opticaldissolved oxygen (ODO)sensor.Forconnection ofthe
sensortothe electronics,a30'cableissupplied.Uptoan additional100 feetof
interconnectcablemaybe addedusing#07-0100junctionbox.All required
sparepartsarealsoprovided withthebasicsystem,including sparemembranes,
electrolyte,o-rings, and anyspecialhardware.
1.3 Features
•StandardQ45D/60 electronictransmittersaredesigned tobe afullyisolated,
looppowered instrumentsfor2-wireDC applications. Optionalintegralpower
supplycardfor115/230VACoperation, and optionalbatterypowersupplycard
forportabledataloggingapplicationsareavailable.
•High accuracy,high sensitivitysystem,measuresfrom0.1ppmto40.0ppm
through2internalautomaticranges.
•Output Hold,Output Simulate, Output Alarm, and Output DelayFunctions.All
forced changesinoutputconditioninclude bumpless transfertoprovide gradual
returntoon-line signallevelsand toavoidsystemcontrolshocks on bothanalog
outputs.

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Revision C(7/09) 5-
•ACpoweroptionprovidesdualSPDTrelayoperation and oneadditionalisolated
analog output. Softwaresettingsforrelaycontrolinclude setpoint, deadband,
phase, delay, and failsafe. Softwarecontrolsautomaticallyappearinmenu list
when hardwareoption cardisplugged inand systempowerisapplied.
•SelectablePIDcontrolleron mainanalog output. PIDcontrollercan operatewith
instrument configured asloop-powertransmitter, orasone of the twooutputson
the ACpowered instrument. PIDincludesmanualoperation feature, and
diagnostic“stuck-controller”timerfeatureforrelaynotificationof control
problems.
•Twoanalogoutputson the relayversionmaybe configured totrack oxygen and
temperature, oroxygen and oxygen. Bothanalogoutputscan beindividually
programmed tofailtospecificvalues.
•SelectableOutput FailAlarmfeatureonRelayBallowssystemdiagnostic
failurestobe senttoexternalmonitoring systems.
•Large,high contrast, customLCD displaywithLEDback light providesexcellent
readabilityinanylight conditions.Thesecondaryline ofdisplayutilizes5x7dot
matrixcharactersforclearmessage display. Twoof fourmeasured parameters
maybe on the displaysimultaneously.
•Diagnosticmessagesprovide acleardescription of anyproblemwithno
confusing errorcodestolookup. Messagesarealsoincluded fordiagnosing
calibration problems.
•Quick and easyone-point calibration method,aircalibrationmethod, and sensor
zero-cal.Toprovide high accuracy, allcalibrationmethodsincludestability
monitorsthat check temperatureand mainparameterstabilitybeforeaccepting
data.
•High accuracy three-wirePt100temperatureinput. Temperatureelement can be
usercalibrated.
•Securitylock featuretoprevent unauthorized tampering withtransmittersettings.
Allsettingscan be viewed whilelocked, buttheycannotbe changed.
•High reliability, microprocessor-basedsystemwithnon-volatilememoryback-up
that utilizesnobatteries. Lowmass, surfacemount PCBconstruction containing
no adjustment potentiometers. Allfactorycalibrationsstored innon-volatile
EEPROM.

ATI Q45D-ODOOptical D.O. SystemPart 1–Introduction
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Revision C(7/09) 6-
1.4 Q45D/60 SystemSpecifications
(Commontoall variations)
DisplayedParameters Maininput, 0.1ppmto40.0ppm
%Saturation, 0to999.9%
Sensortemperature,-10.0to50.0°C(23to122ºF)
Sensorsignal, -40to+2000mVDC
Loop current, 4.00 to20.00mA
Sensorslope/offset
Modelnumberandsoftwareversion
PIDControllerStatus
MainParameterRanges Manualselection ofoneofthefollowingdisplayranges,
0.00to40.00ppm
0.00to40.00mg/l
0.0to999.9%Saturation
Display 0.75”(19.1mm) high4-digit maindisplaywithsign
12-digit secondarydisplay,0.3"(7.6mm) 5x7dotmatrix.
IntegralLEDback-light forvisibilityinthedark.
Keypad 4-keymembrane typewithtactilefeedback, polycarbonate
withUVcoating
Weight DC transmitterconfiguration:1lb.(0.45 kg)
Linepoweredunit: 1.5lb. (0.68kg)
AmbientTemperature AnalyzerService,-20to60°C(-4to140ºF)
SensorService, -5to55°C(23to131°F)
Storage, -5to70°C(-22to158 ºF)
AmbientHumidity 0to95%,indoor/outdooruse,non-condensingtorated
ambienttemperaturerange
Altitude Upto2000m(6562ft)
ElectricalCertification OrdinaryLocation,cCSAus(Certified tobothCSAandUL
standards),pollutiondegree2, installationcategory2
EMI/RFIInfluence DesignedtoEN61326-1
OutputIsolation 600Vgalvanicisolation
Filter Adjustable0-9.9minutesadditionaldampingto90%step
input
TemperatureInput Pt1000RTDwithautomaticcompensation

ATI Q45D-ODOOptical D.O. SystemPart 1–Introduction
O &MManual
Revision C(7/09) 7-
Sensor Opticaloxygensensorutilizing fluorescencequenching
technology. Opticalelement life3-5years.
SensorMaterials Noryl, PVC, andstainlesssteel
SensorCable Submersible: 30 ft. (9.1m)
Max. Sensor-to-Analyzer
Distance 100feet(30m), withjunctionbox
(NOTcommontoall variations)
Standard2-Wire(Loop-powered)Transmitter:
Power 16-35VDC(2-wiredevice)
Enclosure: NEMA4X,polycarbonate, stainless steelhardware,
weatherproof andcorrosion resistant,
HWD: 4.4"(112mm) x4.4"(112mm) x3.5"(89 mm)
Mounting Options Wall orpipemountbracketstandard.Bracketsuitablefor
either1.5”or2”I.D. U-Boltsforpipe mounting.
ConduitOpenings TwoPG-9openingswithglandseals
DC CableType Beldentwisted-pair, shielded,22gaugeorlarger
Insertion Loss 16 VDC
115/230 VAC+Dual RelayOption:
Power 115/230VAC±10%,50/60Hz,10VAmax
Enclosure, ACPowered NEMA4X,polycarbonate, stainless steelhardware,
weatherproof andcorrosion resistant,
HWD: 4.9"(124mm) x4.9"(124mm) x5.5"(139mm)
Mounting Options Wall,pipe,orpanelmountstandard.Wall bracketsuitable
foreither1.5”or2”I.D. U-Boltsforpipemounting.
ConduitOpenings Three½” NPTopenings.Glandsealssuppliedbut not
installed.
Relays, Electromechanical: TwoSPDT,6amp@250 VAC, 5amp@24VDC
contacts. Softwareselectionforsetpoint, phase,delay,
deadband,hi-loalarm,andfailsafe.A-Bindicatorson
mainLCD.

ATI Q45D-ODOOptical D.O. SystemPart 1–Introduction
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Revision C(7/09) 8-
Analog Outputs Two4-20mAoutputs. Output oneprogrammableforPPM
oxygen orPID. Output2programmableforPPMormg/L
oxygen,%saturation,orTemperature.Maxload550
Ohmsforeachoutput. Outputsground isolatedand
isolated fromeachother.
1.5 Q45DPerformance Specifications
(Commontoall variations)
Accuracy 0.2%of selected rangeorbetter
Repeatability 0.05%ofselectedrangeorbetter
Sensitivity 0.05%ofselectedrange
Non-linearity 0.1%of selected range
Warm-up Time 3secondstoratedperformance(electronics only)
SupplyVoltageEffects ± 0.05%span
InstrumentResponseTime 120secondsto90%ofstepinputatlowestdamping

O &MManual
Revision C(7/09) -9-
Part 2–AnalyzerMounting
2.1 General
All Q45 Seriesinstrumentsoffermaximummounting flexibility.Abracketis
included witheachunitthatallowsmountingtowallsorpipes.Inall cases,
choosealocation thatisreadilyaccessibleforcalibrations.Alsoconsiderthatit
maybe necessarytoutilizealocation wheresolutionscan be usedduring the
calibration process.Totakefulladvantageofthe high contrastdisplay,mount
the instrumentinalocation wherethe displaycan be viewed fromvariousangles
and long distances.
Locatethe instrumentincloseproximitytothe pointofsensorinstallation -this
willalloweasy access during calibration.The sensor-to-instrumentdistance
shouldnotexceed 100 feet. Tomaximizesignal-to-noiseratiohowever,work
withthe shortest sensorcablepossible. The standardcablelengthof the oxygen
sensoris25feet.
Due totheflexibilityoftheinstrumentdesign,someofthemountingfeatures
change basedontheconfigurationthatwasordered.Forexample,the 2-wire
transmitterversion isdifferentforthe 115/230 VACcontrollerbecausethe rearof
the enclosureismuchdeeperwhen the ACpowered unitisused. Inaddition, the
ACpowered unithasan integrated panelmountflangerequiringasinglecutout
forflushmounting.Inthe 2-wiretransmitterconfiguration,justthe frontofthe
enclosurecan be mounted,butthe cutoutalsorequiresaccuratelocation of4
mounting holes.RefertoFigures2-1and2-2fordetailed dimensionsofeach
type of system.

ATI Q45D-ODOOptical D.O.SystemPart 2– AnalyzerMounting
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Revision C(7/09) 10-
Figure2-1Q45 EnclosureDimensions, ACPoweredUnits(ATI-0706)

ATI Q45D-ODOOptical D.O.SystemPart 2– AnalyzerMounting
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Revision C(7/09) 11-
Figure2-2Q45 EnclosureDimensions,2-Wireand BatteryUnits(ATI-0655)

ATI Q45D-ODOOptical D.O.SystemPart 2– AnalyzerMounting
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Revision C(7/09) 12-
2.2 Wall orPipeMount
APVCmounting bracketwithattachmentscrewsissuppliedwitheach
transmitter(see Figure2-3fordimensions).The multi-purposebracketis
attachedtothe rearoftheenclosureusingthefourflatheadscrews.The
instrumentisthenattached tothe wall using the fouroutermounting holesinthe
bracket. Theseholesareslotted toaccommodatetwosizesof u-bolt that maybe
used topipemountthe unit. Slotswillaccommodateu-boltsdesigned for1½“or
2”pipe.Theactualcenter-to-centerdimensionsforthe u-boltsareshowninthe
drawing.Notethattheseslotsareforu-boltswith¼-20 threads.The 1½” pipe
u-bolt(2”I.D.clearance)isavailablefromATIintype 304 stainless steelunder
part number47-0005
Figure2-3Wall orPipemountBracket(ATI-0707)

ATI Q45D-ODOOptical D.O.SystemPart 2– AnalyzerMounting
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Revision C(7/09) 13-
Figure2-4Wall Mounting Diagram(ATI-0709)
Figure2-5PipeMounting Diagram(ATI-0710
ENTER
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ESC
ENTER
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ESC

ATI Q45D-ODOOptical D.O.SystemPart 2– AnalyzerMounting
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Revision C(7/09) 14-
2.3 Panel Mount, ACPoweredMonitor
Panelmounting ofan ACpowered monitorusesthe panelmounting flange
molded intothe rearsectionof the enclosure.Figure2-7providesdimensionsfor
the panelcutoutrequired formounting.
The panelmountingbracketkitmustbe ordered separately(partnumber05-
0068).Thiskitcontainsametalretainerbracketthatattachestothe rearofthe
enclosure, 4screwsforattachment of thisbracket, and asealing gasket toinsure
thatthe panelmounted monitorprovidesawatertightsealwhen mounted toa
panel.
The sealing gasketmustfirstbe attached tothe enclosure.The gasketcontains
an adhesiveon one side sothatitremainsinplaceonthe enclosure.Remove
the protectivepaperfromthe adhesiveside ofthe gasketand slide the gasket
overtheback ofthe enclosuresothatthe adhesiveside linesupwiththeback of
the enclosureflange.Onceinplace,youcanproceed tomountthemonitorin
the panel.
Figure2-6115/230 VAC Panel MountandCut-out(ATI-0711)
ENTER
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O &MManual
Revision C(7/09) -15-
Part 3–Optical D.O. Sensor
3.1General
OpticalD.O. sensorsaresuppliedcompleteand readytouse.Allthat’s
needed istomakethe propersensorconnectionsasshowninthe previous
section.
Arubberboot protectsthe endof the sensorintransit. Leavethe protective
bootinplaceuntilthesensoristobeplaced intooperation. Removalof the
protectiveboot priortosubmergencemayexposethe sensing element to
mechanicaldamage that isnot covered bywarranty.
Figure3-1SubmersibleD.O. SensorAssembly(ATI-0870)

ATI Q45D-ODOOptical D.O. SystemPart 3– Optical D.O.Sensor
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Revision C(7/09) 16-
3.2Optical Sensing
OpticalD.O. measurementemploys atechnique called
“fluorescencequenching”inordertomeasuremolecularoxygen.
The sensorwillrespond tooxygen eitherinthe airordissolvedin
water.
Apolymerelementatthe end ofthesensorcontainsan embedded
fluorescentdye.Whentheelementisexposed toapulseoflight
froman internalLED,thematerialinthepolymerwillfluoresce,or
emitlightatanotherwavelength.Thislightdecreases(oris
quenched)atarateproportionaltothe amountofoxygen inthe
polymer.The monitormeasuresthe rateatwhichthisquenching
occursandcalculatesthe oxygen concentration based onthe
measurement.
Opticaloxygen sensorsprovide the abilitytomeasureoxygen in
stagnantwater,and arenotaffectedbycertainkindsofnon-
biologicalcoatings.However,opticalsensorsareaffected by
biologicallyactivecoatingsand mustbe keptclean.Inactivated
sludgeapplications,biologicalfilmscan haveamuchlowerD.O.
concentration on the sensorside ofthe filmthan on the bulk
solutionside.The automaticaircleaningsystemintegratedintothe
Q45Dsystemwill eliminatecoating problemsbycleaning the
sensoronaregularprogrammed schedule.
Figure3-2Optical SensingElement

ATI Q45D-ODOOptical D.O. SystemPart 3– Optical D.O.Sensor
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Revision C(7/09) 17-
3.3 SubmersionMounting
MostapplicationsforD.O. monitoringaredone usingasubmersiblesensor.
Opticaloxygen sensorcan be used instagnantwaterconditions,astheydo not
need sampleflowformeasurement. Mostaeration tankapplicationsin
wastewatertreatment plantscan forbiologicallyactivecoatingson the faceof the
sensor,resulting inlowreadings.ATI’sAuto-Clean versionofthisproductis
preferred intheseapplications.
Submersiblesensorsaremounted toa1"pipe usingaspecialsensoradapter
thatscrewstothe top ofthe sensor.The mounting pipecan be secured to
standard1½” or2”pipe railusingamountingbracketkitavailablefromATI(part
number00-0624)asshowninFigure3-1.Forstandardapplications,the airline
fittingmaybe removed asitisusedonlyforAuto-Clean installations.
Figure3-3SubmersibleSensorMounting Assembly(ATI-0872)
FlexibleAirLineapplicablefor
Auto-CleanOptionOnly!

ATI Q45D-ODOOptical D.O. SystemPart 3– Optical D.O.Sensor
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Revision C(7/09) 18-
Figure3-4MountingAssemblyDetail(ATI-0873)
FlexibleAirLineapplicablefor
Auto-CleanOptionOnly!

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Part 4–ElectricalInstallation
4.1 General
The Q45 ispowered inoneoftwoways,depending on the versionpurchased.
The 2-wireversionisa16-35VDC poweredtransmitter.Theintegral115/230
VACversion requiresline power. Pleaseverifythe type of unit beforeconnecting
anypower.
WARNING:DonotconnectAClinepowertothe2-wiremodule.
Severedamagewill result.
ImportantNotes:
1.Usewiring practicesthatconformtoall national,stateand local
electricalcodes.Forpropersafetyaswellasstablemeasuring
performance,itisimportantthattheearthground connectionbe made
toasolidground pointfromterminal12 (Figure4-1).The ACpower
supplyinthe transmitter,containsasingle100mA(115V)or50mA
(230V)slo-blofuse.The fuseislocatedadjacentto TB5 andiseasily
replaceable.
2.DoNOTrun sensorcablesorinstrument4-20mAoutputwiring inthe
sameconduitthatcontainsACpowerwiring.ACpowerwiringshould
be run inadedicated conduittopreventelectricalnoisefromcoupling
withthe instrumentation signals.
3.Thisanalyzermustbe installed byspecificallytrainedpersonnelin
accordancewithrelevantlocalcodesand instructionscontained inthis
operatingmanual.Observetheanalyzer'stechnicalspecificationsand
inputratings.Properelectricaldisconnection meansmustbe provided
priortothe electricalpowerconnectedtothisinstrument, suchasa
circuitbreaker-rated 250 VAC,2Aminimum.If one lineofthe line
powermainsisnotneutral,useadouble-polemainsswitchto
disconnect theanalyzer.
4.2 Two-Wire
Inthe two-wireconfiguration,aseparateDCpowersupplymustbe used to
powerthe instrument. The exactconnectionofthispowersupplyisdependent
on the controlsystemintowhichthe instrumentwillconnect. See Figure4-1for
furtherdetails.Anytwisted pairshielded cablecan be usedforconnection ofthe
instrumenttothe powersupply.RoutesignalcableawayfromACpowerlines,
adjustablefrequency drives,motors,orothernoisy electricalsignallines.Donot
run sensororsignalcablesinconduitthatcontainsACpowerlinesormotor
leads.