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GeneralSpecifications
Yokogawa Electric Corporation2-9-32, Nakacho, Musashino-shi, Tokyo, 180-8750 JapanTel.: 81-422-52-5617 Fax.: 81-422-52-6792
Model SS400MLSS Analyzer
GS 12E6A1-E
n GeneralThe Model SS400 MLSS Analyzer is a measuring system best suited to continuously and consistently measure the concentration of mixed liquor suspended solids (MLSS) in an activated-sludge treatment process found in sewage or industrial wastewater treatment facilities.The analyzer consists of an MLSS sensor comprising lightemitting and photodetector units, an MLSS converter with a digital display for instant recognition of readings, and one of several types of holders. Designed to be more lightweight and compact for easier handling when compared with conventional equipment, the analyzer also has a construction that allows easy system maintenance.The SS400G MLSS converter has a measuring range as wide as 500-20000 mg/L (ppm). Microprocessor-based, it has a wealth of self-diagnostic functions and alarm contact outputs like other converters in the EXA series, as well as excellent operability.The SS300G MLSS sensor uses a measuring method that compares transmitted light with scattered light. The sensor is designed with due care to the arrangement of the optical system. These design makes the sensor less susceptible to disturbing light. The optional jet cleaning unit permits continuous and consistent measurement even in an application where the sensor is exposed to contaminants.A self-cleaning floating holder is available in addition to free-standing and immersion models, offering a wide range of choices according to the application needs.
n FEATURESConverter•Wideoutputranges,0-1000mg/Lto0-20000mg/L•Outputindifferenttworanges•Abundantcontactoutputs•Enhancedself-diagnosisfunctionsincludingfailureinlightsource
Sensor•Easy-to-maintain,lightweight,compactprobe-likesensor
•Virtuallynoneedforreplacinglightsourceandphotodetectorunit
•Pulse-drivenlightemission,eliminatingeffectsofdisturbinglight
•Arrangementofopticalsystemhighlyimmunetoeffectsoflightreflectingfromboundarysurface
•Jetcleaningunitoption•Choiceofvarioustypesofholdersaccordingtoapplicationneeds
GS12E6A1-E©CopyrightJul.1998
5thEditionApr.15,2014
n SYSTEM CONFIGURATION
SS300G MLSS sensor
• PH8HG guide pipe
• PB350G or PB360G floating ball
holder
• DOX8HS immersion
holder
SS400G MLSS converter
Holder, Holders with cleaning unit
Terminal box
SS380G calibration kit
Withoutcleaning
Jet-cleaning
Output signal:Two outputs; 4-20 mA DC
Alarm contact output:Four contacts: upper/lower limits, cleaning timer, FAIL and HOLD contacts
100-240 V AC24 V DC ±10%
F0102.ai
Fordetailsonholders,seetheGS12J05C02-00Egeneralspecificationsleaflet.
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All Rights Reserved. Copyright © 1998, Yokogawa Electric Corporation GS 12E6A1-E
n MEASURING PRINCIPLELightbeamsreleasedfromthelight-emittingunitscatterbecauseofsuspendedsubstancesinwater.TheSS400MLSSanalyzerreceivestransmittedandscatteredlightbeamsatitsphotodetectorunittoconvertthemtoanelectricsignal.TheanalyzerthencomparesthetransmittedlightbeamswiththescatteredonestocalculatetheratioanddeterminetheMLSSconcentration.Figure1isabriefillustrationexplainingthemeasuringprincipleusingthetransmitted/scatteredlightcomparisonmethod.ScatteredlightJ1 andtransmittedlightJ2arerepresentedasequations(1)and(2),respectively.SinceI1intheillustrationisrepresentedasequation(3),theratioofJ1toJ2isexpressedasequation(4).TheMLSSconcentrationSisthereforedeterminedbyequation(5)ifthephotodetectorisconfiguredtosatisfyL2 = L3.
S = Concentration of suspended substances; m = Scatter factorC = Concentration of coloring components; k = Absorption factorf = Shape factor due to aperture
SampleScattered lightPhotodetector unit
TransmittedlightPhotodetectorunit
Incidentlight
f1
I0
f2
J1
J2
L2L1
I1
L3L
F01.ai
Figure 1 Principle of Measurement Using Transmitted/Scattered Light Comparison Method
J1=f1I1mSLexp(-kCL3)exp(-mSL3) equation(1)J2=f2I0exp(-kC(L1+L2))exp(-mS(L1+L2)) equation(2)I1=I0exp(-kCL1)exp(-mSL1) equation(3)J1/J2=(f1/f2)mSLexpkC(L2–L3)expmS(L2–L3) equation(4)S=(f2/f1mL)(J1/J2) equation(5)
Theuseofthetransmitted/scatteredlightcomparisonmethodhasmadeitpossibletomeasureevenlowconcentrationswhichhavebeendifficulttomeasurewiththeconventionalscattered-lightcomparisonmethod.Thismethodeliminatestheeffectsofcoloringcomponents.Along-lifeLEDlampisusedasthelightsourceinthelight-emittingunit,eliminatingbothworriesaboutabreakdowninthelightsourceandtheneedforreplacingthelightsource.TheLEDlampispulsedriven.Evenifdisturbinglightentersthephotodetectorunitandraisesthebaseline,theanalyzereliminatestheeffectsofthelightbysubtractingV0 fromV1togetthedifferencebetweenthetwosignals,asshowninFigure2.TheanalyzercanthusacquireasignalfortheMLSScomponentonly.
Output J of photodetector = V1 – V0
V1
V0
V1
V0
V1
V0
When there is no disturbing light
When there isDC componentof disturbing light
When there arebothAC and DC componentsof disturbing light F02.ai
Figure 2 Effects of Disturbing Light in Pulse-Driven Light Emission
Theopticalsystemisarrangedsothatlightbeamsdonotdirectlyhitthewallorboundarysurface,asshowninFigure3.Thisconstructionmakesthesensorhardlysusceptibletotheeffectsoflightreflectingfromtheboundarysurface.
Sensor
Boundary surface
F03.ai
Figure 3 Arrangement of Sensor’s Optical System
n FUNCTION SPECIFICATIONSDisplay and Information ItemsThedisplaypresentsacontinuousviewofallnecessaryitemsofinformation.Messagesappearonthesecondline,promptingtheoperator,onaninteractivestep-by-stepbasis,astowhichkeyhe/sheshouldpress.Theuserinterfaceissimple,consistingofonlysixtouch-sensitivekeysaccessiblethroughthesoftwindowcover.
CalibrationBeforeshipment,theSS400MLSSanalyzeriscalibratedtoavaluebasedonYokogawa-producedkaolinthatisusedasthereferencesubstance.Theuser,therefore,mustcalibratetheanalyzerduringsetuptotheuser’sownreferencesubstancetodefinethecorrectioncoefficient.Inordertogetconsistentmeasurementsoveraprolongedperiod,theuserneedstomakezerocalibrationsatfixedintervalsusingtapwaterorotheralternativestandards,aswellasspancalibrationsusingthesuppliedspan-calibratingplate.ThevaluegivenbytheplateispredeterminedusingYokogawa-producedkaolinasthereferencesubstance.Inthecalibrationmodeusingthecalibratingplate,thecorrectioncoefficientautomaticallyresetstozeroand,therefore,valuesinthismodearedifferentfromonesobtainedinthemeasurementmode.AcalibrationkitisavailablewiththeMLSSanalyzerforeasiercalibration.
Cleaning FunctionsThesensoroftheMLSSanalyzercomeswithanoptionalwiper-orjet-cleaningunit.Thisoptionisrecommendedforapplicationswherethesensormaybeexposedtocontaminants.Notethattheoptionisnotavailableifthesensorisusedtogetherwithafloatingballholder.
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All Rights Reserved. Copyright © 1998, Yokogawa Electric Corporation GS 12E6A1-E
Self-Diagnosis Functions of SensorTheMLSSanalyzerhasenhancedself-diagnosticfunctionsthatautomaticallydetectabreakdownoropencircuitinthesensor’slightsource,afailureintheconverterorotherfaults.Shouldafailurebefoundasaresultofdiagnosis,theFAILcontactturnson,causingtheoutputsignalstogointothe“burnout”state,ifsetaccordingly(onlyoutput1goesintothatstateinthecaseofaconverterfailure).AFAILmarkerappearsonthedisplay,theLEDindicatorcomeson,andthemessagelineshowsanerrorcode,thusallowingtheoperatortolearnthereasonforthefailure.Inaddition,theanalyzerautomaticallyrecognizesafailureinthesensorduringcalibration,showinganerrorcode(thecontactsandburnoutfunctionarenotactivatedatthatmoment).
Alarm and Control FunctionsThecontactoutputsoftheMLSSanalyzerhavethefollowingfunctions:•Processalarm Thestateofthecontactchangesiftheprocessvaluereachesitsupperorlowerlimit.
•Variableparameters: Setpointofprocessvalue,hysteresisofopen/closeactionanddelaytimeofrelay
HOLD Contact OutputUsedwhen,forexample,acontrolroomneedstobeinformedthattheoutputisinaHOLDstateduringcleaningorsystemmaintenance.Thecontrolroomitselfcanlearnofthisstatefromtheoutputsignal.
Cleaning Contact OutputUsedtocontroltheintervalsbetweenjetcleanings.Theintervalsbetweenordurationofcleaningsdifferdependingonthesensor’sdegreeofcontamination.Parameters,therefore,mustberesetaccordingtotheprocesscondition.•Variableparameters: Cleaningtime,post-cleaningrelaxationtimeandcleaninginterval
FAIL Contact OutputUsedwhenacontrolroomneedstobeinformedofafailure(S4contactonly).Ifanyfailureoccursduringmeasurement,theFAILindicatorcomesonandthiscontactturnson,allowingthecontrolroomtoimmediatelylearnthatafailurehasoccurred.TheS4contactusedastheFAILcontactalsoclosesifthepoweristurnedoff.
MLS
S c
once
ntra
tion
Cleaning Relaxation
Cleaning interval TimeT04.ai
Figure 4 Response During Cleaning
S3
FAIL
Sensor
Outputsignals
Contactoutputs
Power supply
4-20 mA
4-20 mA
S1
S2
Contactoutputs
Contactinputs
F05.ai
Figure 5 Example of External Wiring
n STANDARD SPECIFICATIONSMeasuringobject: Concentrationofmixedliquor
suspendedsolids(MLSS)inanaerationtankinasewageorindustrialwastewatertreatmentplant
Note: ·MLSSanalyzercannotbeusedformeasurementofsuspendedsolids(SS)concentrationineffluentafteraerationtreatment,neutralizationfacilities,andseawater.
·Whenaguide-pipetypesensorisusedinexcretadisposalfacilities,thecablemustnotcomeincontactwiththeliquid.Consultusforthedetail.
·Readthenoteonmeasuringobjectofthesensor,describedonthefollowingpage.
ConverterMeasuringmethod: Transmitted/scatteredlight
comparisonmethodMeasuringrange:500-20000mg/LOutputsignal:Two4-20mADCsignals;maximum
loadresistance:600Ω•TherangeofmA1outputcanbeswitchedbyremotecontrol.
•22±0.5mA(burnup)or2mA±0.5mA(burndown)canalsobeselectedasanoutputcurrentduringfailure
•Bothsignals(setpointorthemost-recentvalue)canberetainedduringsystemmaintenanceorcleaning.
•Therangeofconcentrationcanbesetseparatelyforbothofthesesignals.Outputrangesettingrange:Min.0-1000mg/L Max.0-20000mg/L,(zerosuppressioncan
besetforreadingsupto60%oftherange,andspanshouldbe1000mg/Lormore.)
Indication:Maindisplaysection;LCDsix-digitdisplay(maximumreading;99999.9mg/L;effectivedigits;3digits,minimumreading;0.1mg/L)
Messagedisplaysection;Six-digitalphanumericdisplay
Contactoutput:Typesofalarm: S1,S2andS3;alarmforupper/
lowerlimitsofconcentration,HOLD,cleaning
S4;FAILalarmAlarmactions: Configurablewithon/offoutput,
hysteresisanddelaytimeTypeofcontact: Relay(voltage-free)Capacity: 100VAmaximumat250VAC,2A 50Wmaximumat30VDC,2A
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All Rights Reserved. Copyright © 1998, Yokogawa Electric Corporation GS 12E6A1-E
Statesofcontact:
ContactState of
Contact atPower-Off
State of Contact at Power-OnWhen not Activated
When Activated
S1 Open Open ClosedS2 Open Open ClosedS3 Open Open ClosedFail Close Open Closed
Contactinput:Voltage-freecontactforremoterangeselectionandstartofcleaning
ONinputresistance: 200ΩorlessOFFinputresistance: 100kΩormore
Ambienttemperature: -10°to55°CRelativehumidity: 10to90%RH(non-condensing)Construction:ComplieswithJISC0920watertight,
IECIP65andNEMATYPE4XstandardsMaterial: Casing;Moldedaluminumalloy Cover;Polycarbonate Hoodforsunprotection(optional);Carbon
steelorStainlesssteel Mountingbrackets(optional);Stainless
steelFinish: Bakedpolyurethanecoating(standard)or
epoxybakedfinish(optional)Color: Casing;Frostywhite(equivalentto
Munsell2.5Y8.4/1.2) Cover;Deepseamossgreen(equivalent
toMunsell0.6GY3.1/2.0)Mounting:JIS50A(2-inch)pipe-mounted,wall-
mountedorpanel-mountedPowersupply:100-240VAC,50/60Hz 24VDCPowerconsumption:22VAmaximum(ACpower) 5Wmaximum(DCpower)Weight: Approximately2.5kgDimensions: 144(W)´144(H)´135(D)(mm)Cableinlet: Sixports,includingsensorcableinlet;
equippedwithplasticwatertightplugsequivalenttoDINPG13.5(outerdiameterofcable:6-12mm)
Cableterminal: 0.13to4mm2insize(onlypinterminalscanbeconnected)
Conduitadapter(optional): G1/2femalethreador1/2NPTthread
RegulatoryCompliance:EMCRegulatoryArrangementinAustraliaand
NewZealandEN55011ClassA,Group1
KoreaElectromagneticConformityStandardClassA한국 전자파적합성 기준
SensorShape: Probe-likeSensorMeasuringobject: Concentrationofmixedliquor
suspendedsolids(MLSS)inanaerationtankinasewageorindustrialwastewatertreatmentplant
Note: ·MLSSanalyzercannotbeusedformeasurementofsuspendedsolids(SS)concentrationineffluentafteraerationtreatment,neutralizationfacilities,andseawater.
·Whenaguide-pipetypesensorisusedinexcretadisposalfacilities,thecablemustnotcomeincontactwiththeliquid.Consultusforthedetail.
·Thestainlesssteelmaterialishighlycorrosionresistant,however,thebenefitmightbeaffectedbyincreasingacidity,alkalinity,orconcentrationofchlorideion.IfyouneedtomeasuretheMLSSconcentrationinanaerationtank,whichmaycontaincorrosiveelements,inasewageorindustrialwastewatertreatmentplant.,pleaseconsultus.
Measuringprinciple: Transmittedandscatteredlightcomparison
Measuringrange:500-20000mg/L(kaolinstandard)Temperatureofmeasuredobject:0-50°CPressureofmeasuredobject:0-200kPapHofmeasuredobject: pH6to8Flowvelocity:0.2to1m/sec(dependingonholder)Cablelength:3,5,10,15or20m(whenterminal
boxused,maximumcablelengthis50mwithinsensorcablelength.)
Materialofwettedpartorjunction:Body; Stainlesssteel(SUS316orSUS316L)Window; glassO-ring; nitrilerubberCable; PVC
Weight: Approximately0.5kgplusNx0.12kg,whereNiscablelengthm.
Cleaningunit(optional): JetcleaningNote: Nocleaningunitcanbeusedifthesensoris
equippedwithafloatingballholder.Materialofjetcleaningunit: Polypropylene,
polyethyleneandSUS304(wettedpart)Utilitiesofjetcleaning:
Pressure; waterjet100to200kPa airjet100to200kPaFlowrate;waterjet5to20L/min airjet10to20NL/min
Terminal BoxUsedtoinstalltheconverterandsensorunitseparatelyinthedistance.Ambienttemperature: -10to50°CConstruction:ComplieswithJISC0920rainproof
standardCasingmaterial: Fiberglass-reinforced
polycarbonateresinElectricalconnections:
Sensorside: JISA8-equivalentplasticwatertightplug
Converterside: JISA15-equivalentplasticwatertightplugwithaccessorycable(40mlongmaximum);conduitadapteroptional
Casingcolor: Grayishgreen(Munsell2.5GY5.0/1.0)Weight: Body; 0.5kg Mountingbracket; 0.7kg
Calibration KitCalibration-purposevesselMagneticstirrerBeaker(300mL)Erlenmeyerflask(250mL)Polyethylenebottle(500mL)
n CHARACTERISTICSLinearity: ±4.5%F.S.(bystablekaolinsolution)Repeatability:2%F.S.(bycalibrationplate)Stability: Zero±2%F.S./day(bycitywater) Span±2%F.S./day(bycalibrationplate) F.S.meansuppersettingvalueofoutput
range.
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All Rights Reserved. Copyright © 1998, Yokogawa Electric Corporation GS 12E6A1-E
n MODEL AND SUFFIX CODESMLSS Converter
[Style:S2]
Model Suffix code Option code Description
SS400G ························· ········· MLSSConverter— -N ········· Always“-N”Supplyvoltage
-1-4
··················
100-240VAC,50/60Hz24VDC*1
Languageforcautionarynotesorotherremarks
-J-E
··················
JapaneseEnglish
Option Bracket
Hood
TagplateFinishUnit
Adapterforconduitinstallation
/U
/PM
/H3
/H4
/SCT/X1/PPM/AFTG/ANSI/SPS
Pipeorwallmounting(stainlesssteel)Panelmounting(stainlesssteel)Hoodforsunprotection(carbonsteel)Hoodforsunprotection(stainlesssteel)Withstainless-steeltagplateEpoxybakedfinishReadingsinppmG1/2(femalethread)1/2NPTthreadWithscrewsforsaltprotection*2
*1: NOT2-wiresystem*2: TheSUSscrewswithtefloncoatingareusedatfour
cornersofthecover.MLSS Sensor
[Style:S2]
Model Suffix code Option code Description
SS300G ························· ········· MLSSSensor— -NN ········· Always“-NN”Cablelength
-03-05-10-15-20
·············································
3m5m10m15m20m
Treatmentoncableends
-PN ········· Pinterminals
Option Cleaningunit
Bracket
/JTJ
/JTA
/MS
Rc1/2*connectionwithjetcleaningunit(femalethread)1/2NPT*connectionwithjetcleaningunitHardwareforfree-standinginstallation
*: Choosethisoptionifaholderisused.
Terminal BoxModel Suffix code Option
code Description
WTB10 ························· ········· TerminalboxApplicationsystem
-SS1 ········· For MLSS analyzer
— -NN ········· Always“-NN”Cablelength -00
-05-10-20-30-40
······················································
Nocable(*1)5m10m20m30m40m
Option Bracket
Adapterforconduitinstallation
/P/W/AWTB/ANSI
PipemountingWallmountingG1/2(femalethread)1/2NPTthread
Thecableisamaximumof50mlong,includingthelengthofthesensorcable.*1: Thededicatedextensioncableshouldbeused.
Calibration KitModel Suffix code Option
code Description
SS380G ························· ········· CalibrationkitforMLSSconcentration
— -NN ········· Always“-NN”
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All Rights Reserved. Copyright © 1998, Yokogawa Electric Corporation GS 12E6A1-E
n EXTERNAL DIMENSIONSSS300G MLSS Sensor
Unit:mm
Cable length of 3, 5, 10, 15 or 20 m as standard
F07.ai
ø26
ø36
154
4610
ø32
Note AirbubblesordirtontheMLSSsensorcaninterferewithaccuratemeasurement,especiallyinthelowconcentrationlevel.Forsuchapplications,takeanappropriatemeasure,e.g.,tiltthesensorapproximately30°oraddacleaningsystem.
Hardware for Free-standing Installation
600 Unit: mm
max. 500
min. 236 pitch 4455
65
JIS 50A2-inch stanchion (vertical)
Suspension wire(max. 5m)
F17.ai
Apr.15,2014-00
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All Rights Reserved. Copyright © 1998, Yokogawa Electric Corporation GS 12E6A1-E Apr.15,2014-00
Jet Cleaning Unit for Free-standing Installation
Suspension wire(max. 5m)
JIS 50A2-inch stanchion (vertical)
Horse for cleaning(max. 10m)
600 Unit: mm
max. 500
min. 236 pitch 4455
65
Approx. 271
84Approx.
105F18.ai
SS400G MLSS ConverterUnit:mm
184
144
72
20
144
220
23 112
4-M6 screws, 8 deep
80
80
36 36
36
38
A B C
D E F
Hood (optional) Option code : /H
Cable inlet port (21 dia. holes)equivalent to DIN PG13.5 cable gland
Ground terminal(M4 screw)
A: Sensor cable inlet portB: Contact input inlet portC: Analog output cable inlet portD: Contact (S1, S2), output cable inlet portE: Contact (S3, FAIL), output cable inlet portF: Power cable inlet port
Weight: approximately 2.5 kgF08.ai
49Adapter
G1/2 screw (/AFTG)1/2 NPT screw (/ANSI)
Approx.55
PackingCase
Cablegland
Note: Adapter for conduit installation are used for five cable inlet ports without sensor cable inlet.
Adapter for conduit installation
CAUTIONInstallation Location of Holders
The holder should be used in a place that is as vibration free as possible. Using the holder in a place where it is affected by vibration, may result in damage to the holder.
(Guide Pipe, Submersion Type, etc)
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All Rights Reserved. Copyright © 1998, Yokogawa Electric Corporation GS 12E6A1-E
Pipe/Wall Mounting Brackets (Option Code: /U)Weight:approximately0.7kg
Unit:mm
188
174
50
200
100
4-M6 screws
135 13
224
4-M6 screws
200
35
15701003-ø10 holes
Example of bracket used for pipe mounting
Nominal 50 mm (ø60.5 mm)mounting pipe
Example of bracket used for wall mounting
Panel Mounting Brackets (Option Code: /PM)Weight:approximately0.4kg
Unit:mm
4-M6 screws
100
178
137+2 0
137+2 0
12 max. (panel thickness)23
Panel cutout dimensions
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All Rights Reserved. Copyright © 1998, Yokogawa Electric Corporation GS 12E6A1-E
WTB10 Relay Terminal BoxUnit:mm
F13.ai
65126
46
22
±0.270
4-M5 screws, depth 9(for mounting)
178
7559
±0.2
Extension cable inlet (to be drilled for wiring)with cable gland (applicable cable o.d.: ø9 to 12 mm)
Sensor cable inlet (to be drilled for wiring)with cable gland (applicable cable o.d.: ø5.5 to 7 mm) Adapter
Cable gland
Case
NutPacking
49
appr
ox. 5
5
G1/2 (/AWTB) or1/2NPT (/ANSI)
Adapter for Conduit Work
WTB10-SS Terminal Box (first of two)
Dedicated Extension Cable (Not Supplied when Suffix Code “-00” is selected)Unit:mm
F14.ai
LApprox. 5 000Approx. 10 000Approx. 20 000Approx. 30 000Approx. 40 000
WTB10 - SS1 - NN - 05WTB10 - SS1 - NN - 10WTB10 - SS1 - NN - 20WTB10 - SS1 - NN - 30WTB10 - SS1 - NN - 40
Models and Suffix codes
L
40 4080 80
8080
191112131415161718
GreenWhiteRedWhiteBrownWhiteBlackWhiteOrange
GreenWhiteRedWhiteBrownWhiteBlackWhiteOrange
191112131415161718
Approx. 10 mm in diameter Approx. 7 mm in diameter
K9316SRK9316SSK9316STK9316SUK9316SV
P/N
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All Rights Reserved. Copyright © 1998, Yokogawa Electric Corporation GS 12E6A1-E
Pipe Mounting Bracket (Optional)(Option Code: /P)
Unit:mm
48
Nominal 50A(outer diameter ø60.5)pipe(65)
4-M5 screws, depth 9
U-bolt, washer, nut
70100
203
84 - ø5.5 holes
4 - ø10 holes70
47
7570
(254
)
Weight: approximately 700 gF15.ai
Wall Mounting Bracket (Optional)(Option Code: /W)
Unit:mm
(65) 13
4-M5 screws, depth 9
70
185
1527
70100
8
3-ø10 holes
4-ø5.5 holes
75
±1
±1
(236
)
Weight: approximately 300 gF16.ai
WTB10-SS Terminal Box (second of two)
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All Rights Reserved. Copyright © 1998, Yokogawa Electric Corporation GS 12E6A1-E
n WIRING DIAGRAMS
Grounding terminal(M4 screw)
*1
*1
*2
*3
*3
*3 *6
*5
*4
SS400G Converter
F06.ai
31
32
41
42
51
61
62
65
66
63
21
22
25
2326
11
12
13
14
15
16
17
18
19
11
12
13
14
15
16
17
18
19
11
12
13
14
15
16
17
18
19
SENSOR
52
71
S1
S2
mA1
mA2
R1
R2
S3
FAIL72
1
2
3
L1 +
L2 -
G
G
G
Contact output S1 4 to 20mA DC
4 to 20mA DC
Contact input R1 (remote cleaning)
Contact input R2 (remote range switching)
Contact output S2
Contact output S3
Contact output FAIL
Power supply100 to 240V AC or 24V DC ±10%
Terminal box WTB10-SS1
+-
-+
*1: ALWAYSusea6to12mmOD.shieldedcable.*2: ALWAYSground(groundingresistance100Ωorless)thegroundingterminalofthecasingoftheMLSSconverter. (Groundthepowercordinsteadonlyiftheabovegroundingisnotfeasible.DoNOTusetwo-pointgrounding).*3: ALWAYSusea6to12mmOD.cable.*4: UsetheterminalboxonlyiftheMLSSconverterisinstalledseparatelyfromtheMLSSsensor. (Normally,theboxisunnecessary.)*5: Specifythiscableusingthesuffixcodeforaterminalbox.*6: For24VDCpowersupply,connectthe“+”terminaltoL1andthe“-”terminaltoL2.
Subjecttochangewithoutnotice.Apr.15,2014-00
Recommended