Ezetrol®plus Controller - WEP · Which other equipment suppliers you deal with provide the level...

Ezetrol®plusController

WT.050.425.001.GE.IM.0109

Water Technologies

Chemfeed Limited, Priory Works, Tonbridge, Kent, TN11 0QL, England

Telephone Fax Internet

+44 (0) 1732 771777 +44 (0) 1732 771800 www.chemfeed.co.uk

IMPORTANT ANNOUNCEMENT Supply of Spares - Payment by Credit/Debit Card

Siemens Water Technologies are pleased to announce that we are now able to accept payment for spare parts by major credit/debit cards. We appreciate that some of our Customers periodically require quantities of spare parts, possibly to repair plant breakdowns. Standard procedures, whereby an official order has to be issued before parts can be supplied, often hinders this process, leaving the operations/maintenance personnel frustrated and without vital spares to complete the job. If you, or your staff, have a valid credit/debit card, that is all you need. We will not require an official order to cover credit/debit card transactions. To order freephone 0800 7834628. Our staff will take all the details and advise you on price and availability of your parts requirements. Your order will be despatched the same day wherever possible (depending on the time the order is placed). If ordered late in the day, it will be despatched the next working day. An invoice will be sent to your designated invoice address with a copy of the credit payment slip for your records. We are sure that this “Fast Track” facility will be welcomed by your “sharp end” personnel who keep plant operational. R. Russ General Manager Sales & Marketing

1Form RD1013 Issue 2 Dec 2003

Did we …… Excellent HighlySatisfactory Satisfactory Unsatisfactory Highly

Unsatisfactory

1 Treat you in a helpful & friendly manner? ¡ ¡ ¡ ¡ ¡

2 Provide sound advice, which demonstrates professionalism and knowledge of your application?

¡ ¡ ¡ ¡ ¡

3 Provide products and services that meet your range of chemical dosing & disinfection needs?

¡ ¡ ¡ ¡ ¡

4 Provide products and services of the quality that meets your needs?

¡ ¡ ¡ ¡ ¡

5 If we have recently supplied equipment to you, did it meet its stated performance?

¡ ¡ ¡ ¡ ¡

6 Provide a clear & easy to understand instruction manual?

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7 Give efficient, prompt service and keep you up to date on progress of your order?

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8 Act responsively and obligingly to your needs? ¡ ¡ ¡ ¡ ¡

9 Are we there when you need us – accessible and supportive?

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10 Did we take ownership of any problems you may have arisen?

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11 Overall how do you find our service? ¡ ¡ ¡ ¡ ¡

Much Better Better The same Worse Much Worse

12 Compared to 12 months ago, how do you rate our company’s performance?

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13 Compared to other equipment companies, how do you rate our service?

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13 Would you recommend our company to your colleague? ¡ ¡ ¡ ¡ ¡

INSTRUCTION MANUAL - CUSTOMER FEEDBACK

Please help us to help you. As part of our commitment to providing the service you require, we are very interested to obtain your views of the current service we provide and any ideas for improvement. We want to deliver a service that is tailored to meet your needs, so we would be most grateful if you take a few moments to complete this feedback form.

We read every comment, good or bad, highlighted on returned questionnaires and will take the comments extremely seriously. The results will be reported to our management team as part of our quality procedures.

Would you please complete the form below. This will help us assess your responses accurately.

If you have any comments that that will help us improve our service, could you tell us what could have been done differently using the space in the appropriate sections.

WALLACE & TIERNAN STRANCO

2Form RD1013 Issue 2 Dec 2003

14 If you are not at all satisfied with our service, it would help us if you could tell us why and what we could have done differently.

15 Please give us you suggestions on how we can improve our products and services, or tell us those you would like us to introduce.

16 Within our company, we like to recognise those people who provide excellent customer service. If you have received such a service, please name the person or the team involved.

17 Which other equipment suppliers you deal with provide the level of service that you require?

18 What makes them better?

19 Any other comments or feedback

Thank you for your time in completing this questionnaire.

This will help us to improve further the services we offer, and ensure that we meet your future requirements.

Clive DeanManaging Director

Name: Company: Address:

Tel::Email:

Position:

Fax:

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Ezetrol®plus analysEr/controllEr

introduction

The Ezetrol® plus controller has been specifically designed for all types of swimming pools, spas and water features that are dosed with chlorine. The Ezetrol® plus controller is flexible in its approach to input options, offering parameters of free chlorine, pH and temperature as standard. Other parameter combinations such as dual chlorine inputs and pH measurement or the measurement of free chlorine, pH and redox are available. The Ezetrol® plus

This manual has been produced to enable the user to obtain maximum service from the equipment and comprises installation, operation maintenance and spare parts information. Minor changes may be made to the equipment that have been made, contact Siemens Water Technologies for information.

Our guarantee is conditional upon the equipment being used in accordance with the instructions herein and we therefore recommend that they be read and fully understood before the equipment is placed in service.

Siemens Water Technologies

contents

Target groups 1 Conventions 1.2

Safety 2 Intended use 2.1 General safety instructions 2.2 Safetyinstructionsspecifictotheunit 2.3 Description 3 Chlorinemeasurement 3.1 Disinfectionofwater 3.1.1 Rangeofapplications 3.1.2 Versions 3.2 Design 3.3 Overalldesign 3.3.1 Flowcellmodule 3.3.2 Electronicmodule 3.3.3 Functions 3.4 OverallFunction 3.4.1 Flowcellmodule 3.4.2 Electronicmodule 3.4.3 Safetyfunctions 3.4.4 Interfaces 3.4.5 Digitalinputs 3.4.6

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Ezetrol®plus analysEr/conTrollEr

Controllertypes 3.4.7 Controlparameters 3.4.8 Alarms 3.4.9 Interfaces 3.4.10 TechnicalData 3.5 Electronicmodule 3.5.1 Flowcellmodule 3.5.2 Sensors 3.5.3

Installation 4 Versions 4.1 Transportandstorage 4.2 Transport 4.2.1 Storage 4.2.2 Installation 4.3 Transport 4.3.1 Unpacking 4.3.2 Location 4.3.3 Mounting 4.3.4 Samplewatersupply 4.3.5 Sensorconnection 4.3.6 Electricalconnection 4.3.7 Samplewaterdrainageline 4.3.8 Commissioning 4.4 Startingupprocedure 4.4.1 Fillingcellgrit 4.4.2 Insertthesensorsandconnect 4.4.3 ConnectingtheSampleWater 4.4.4Connectthedevicetothepowersupply 4.5 Connectingaflocculantpump 4.5.1 Switchtheuniton 4.5.2 Systemshutdown 4.6 Adaption 4.7 Settingsoverview 4.8

Operation 5 Displayandoperatorcontrols 5.1 Codenumber 5.1.1 Generalnotesonoperation 5.1.2 Menustructure 5.1.3 Operatingmodes 5.1.4 SwitchingtheEzetrol®plusoff 5.1.5 Switchingtheentiresystemoff 5.1.6 Calibration 5.2 Chlorinecalibration 5.2.1 pHcalibration 5.2.2 Redoxcalibration 5.2.3 Temperaturecalibration 5.2.4

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Overfeedfailsafealarm 5.3 Errorsandremedies 5.4

Maintenance 6

Routinemaintenance 6.1 Daily 6.1.1 Weekly 6.1.2 Sixmonthly 6.1.3 Changingthefuse,battery,orMultiSensor 6.2 Replacingthefuse 6.2.1 Replacingthebattery 6.2.2 ChangingtheMultiSensor 6.2.3

Spareparts 7

Flowcellmoduleandsensors 7.1 Electronicmodule 7.2

Illustrations

Flowcellmodule(pressurised(AAC6100) Fig.1Backboardmountedunit(Drg.No.50235) Fig.2Wiringdiagrams(3sheetsDrg.No.50234) Fig.3

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1 target groups

Thisinstructionmanualprovidestheinformationforinstallation,operatingandmaintenancepersonnel.Itisintendedfortheoperatingpersonnel.It contains important information for safe, reliable, trouble-free andeconomicaloperationoftheunit.Observanceofthisinformationhelpstopreventdangerousincidents,lowersrepaircosts,reducesdown-times,andalsoincreasesthereliabilityandservicelifeoftheunit. Thechapter“Installation”isintendedfortrainedandqualifiedservicepersonnel only. It contains important information on installation,configurationandcommissioningoftheunit.

Allpersonsworkingwiththeunitmusthavereadandunderstoodtheinstructionmanual,particularlythesafetyinstructionsitcontains.

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2 safety 2.1 intended use

TheEzetrol® plusisintendedexclusivelyforthecontrolofthetreatmentofwaterinswimmingpoolsspa'sandwaterfeaturesthataredosedwithchlorine.Itmayonlybeusedindoorsandundertheoperatingconditionsdescribedinthetechnicaldata.Theoperationalsafetyoftheunitisonlyguaranteedifitisusedinaccordancewithitsintendedapplicationasdefinedintheorderandundertheoperationalconditionsstatedinthetechnicalspecifications.

Compliancewiththeintendedusealsoincludesreadingthisoperatingmanualandobservingalltheinstructionsitcontains.Furthermore,allinspectionandmaintenanceworkmustbeperformedattheprescribedintervals.Theoperatorbearsfullandsoleresponsibilityifthisunitisputtoanyusewhichdoesnotcomplystrictlyandexclusivelywiththisintendeduse.

noTE: TheEzetrol® plus is not suitable for use with bromine based systems.

2.2 safety instructions

SiemensWaterTechnologies places great emphasis on safetywhenworkingonorwiththeunit.Thishasalreadybeentakenintoaccountinthedesignofthesystem,bytheintegrationofsafetyfeatures. Thesafetyinstructionsinthisdocumentationmustalwaysbeobserved.Thesedonotaffectthevalidityofanyadditionalnationalorcompanysafety instructions.

Allsafetyinstructionsattachedtotheunititselfmustbeobserved.Theymustalwaysbecompleteandeasilylegible. The unit has been constructed in accordancewith state-of-the-arttechnologyandtheacceptedsafetyregulations.However,iftheunitisusedbypersonswhohavenotbeenadequatelyinstructed,riskstolifeandlimbofsuchpersonsorthirdpartiesanddamagetotheunititselfortootherpropertycannotberuledout.Worknotdescribedinthisoperatingmanualmayonlybeperformedbyauthorisedpersonnel. Theoperatoroftheoverallsystemmustensurethatonlyauthorisedandqualifiedspecialistsarepermittedtoworkwithandontheunitwithintheirdefinedscopeofauthority.“Authorisedandspecialisedpersonnel”referstotrainedtechniciansemployedbytheoperator,SiemensWaterTechnologies or, if applicable, the service partner.Only qualifiedelectriciansmayperformworkonelectricalcomponents.

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Trouble-freeoperationoftheunitisonlyguaranteediforiginalsparepartsandcomponentsareusedinpreciselythecombinationdescribedinthisinstructionmanual.Failuretoobservethisinstructionmayincurtheriskofmalfunctionordamagetotheunit.

Neverattempttoperformanymodifications,extensionsorconversionstotheunitthatcouldhaveanadverseaffectonsafetywithoutthewrittenapprovalofthemanufacturer.

Duringnormaloperation,thehousingmustremainclosed.

Priortoinstallation,inspection,maintenanceandrepairwork,alwaysswitchtheunitoffwiththemainswitchontheoutsideoftheunitandsecure against reactivation. Connectallcablesinaccordancewiththewiringdiagram. Ensure safe and environmentally-friendly disposal of agents andreplaced parts.

2.3 SafetyInstructionsSpecifictotheUnit

Thisinstructionmanualandthetechnicaldocumentationoftheinstalledcomponents of the unitmust always be available at the installationsite.

Alwaysobserveany supplementary,generallyvalid legal regulationsor other binding rules and ensure their compliance!These rules andregulations apply to:

• work safety • accident prevention • environmentalprotection• hygiene• first-aid All personnel chargedwith installation, commissioning, operation,maintenanceandrepairoftheunitmustreadandunderstandthisinstructionmanual,particularlythesafetyinstructions.

Neverattempttoperformanymodifications,extensionsorconversionsontheunitwhichcouldhaveanadverseaffectonsafetywithout thewrittenapprovalofthemanufacturer.

Onlyusesparepartswhichhavebeenapprovedbythemanufacturer.

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Thisisalwaysguaranteedwhenoriginalsparepartsarepurchased.

Alwaysobservetheintervalsforregularmaintenanceorinspectionworkwhichareeitherprescribedorstatedintheinstructionmanual.

Thesystemmustnotbeusedwithflammableliquidsordangerousortoxic gases.

Neverusecorrosivecleaningagents!Useonlyadampclothtocleantheunit.

Alwaysreadtheinstructionmanual,inparticularthesafetyinstructions,beforeyouoperatetheunitforthefirsttime. Neveremployanyworkingmethodswhichcouldendangersafety!

Alwayscomplywiththeprescribedvaluesforsamplewateradmissionpressure, connection voltage as well as ambient and operatingconditions.

Neverdeactivateanysafetyfeatures. Duringoperationoftheunit,unexpectedincorrectfunctionsmayoccurthatresultfromfailureorerrorsinthecontrolsystem.Intheeventofsuchsafety-relevantchangesintheoperatingperformanceofthedevice,switch it off immediately and remedy the fault or have it remediedimmediately. Evenwhen the unit is switched off, external voltagemay still beapplied.

Always eliminate or have eliminated any leakageon theflowblockassemblyimmediately.

Intheeventofafire,alwaysswitchtheunitoffwiththemainswitchontheoutsideoftheunitorwiththeexternalmaincircuitbreakerorfuse.

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3 description 3.1 ChlorineMeasurement3.1.1 disinfection of water

Swimming poolwater is generally disinfected by adding calciumhypochloriteorsodiumhypochlorite.Accuratedosingofthesechemicalsis extremely important because the degree of disinfectionmay beinsufficientiftheconcentrationistoolow.Ontheotherhand,iftheirconcentrationistoohigh,theremaybeanoticeablechangeintheodourorevencorrosivedamagetothepool.

3.1.2Rangeofapplications

Continuousmeasurement

• oftheconcentrationofchlorinedisinfectant • ofthepHvalue • oftheredoxvoltage • controlofdosingunits toautomatically regulate theamountof

disinfectantinthewaterandthepHvalue.

TheEzetrol® pluscomplieswiththefollowingstandards:

• DIN19643“Treatmentofwaterofswimming-poolsandbaths”and

• ÖNORMM5872Equipmentofwatertreatmentplantsforswimmingpoolswithmeasuringandcontrolinstruments.

and• PWTAG-SwimmingPoolWaterTreatmentandQualityStandards

noTE: Wedonot recommend thatEzetrol®plus isused tocontrolBromine

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3.2 Versions

ThefollowingversionsoftheEzetrol® plusareavailable:

• WithchlorineandpHmeasurementandcontrol• With chlorine and pH measurement and control and redox

measurement • For200–240VAC • withthreemAoutputs • Pre-mountedonauPVCboard(PartNoAAA1791)

• With2xmeasurementandcontrol, pHmeasurementandcontrolforacommoncircuitboard

3.3 design 3.3.1 Overalldesign

TheEzetrol® plusisamodularsystem.

The twomain components are theflowblock assembly (A) and theelectronicsmodule(C).

Upto3sensors(B)canbeinstalledintheflowblockassembly.

A B C

A Flow cell module B Sensors C Electronic module

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3.3.2 Flowcellmodule

Theflowcellmodulehasaplastichousing(B)witharemovablecover.Allthecomponentsoftheflowcellmoduleareinstalledinthishousing:

• Flowcontrolvalve(C)• TheMultiSensorformonitoringtemperatureandflowrate(F)• Thedrain(D)• Thesamplewaterinletwithcheckvalveandballvalve(E)• Thesamplewateroutlet(D)withballvalve

Thetopclips(H)forthesensorandthelowerclips(G)toholdthebufferorcalibrationsolutioncanbemountedontheoutsideofthehousing.

Twoseatsareprovidedforthelowerclips.Thecellbodycanbeequippedwithamaximumof3sensors(I).TheEzetrol® plus-flowcellmoduleis always pressurised.

I

H

A

G B

F

E C D

A PlastichousingB Flow control valveC SamplewateroutletD DrainE Ball valveF Multi sensorG Lower clipH Upper clipI Sensors

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A

B

C

D

EA ReferenceelectrodeREF)B KClelectrolyteC SaltD Counterelectrode(CNT)E WorkingelectrodeWRK)

A Referenceelectrodesystem Ag/AgClB Referenceelectrolyte (polymergel)C CeramicdiaphragmD Ballmembrane

A

B

C

D

chlorine sensorThe chlorinemeasuring cell consists of a 3-electrode system as acombinationelectrode.Theworkingandcounterelectrodesaremadeofaplatinumalloy;thereferenceelectrodeisasilver/silverchlorideelectrode.TheelectrolyteisasaturatedKClgelanditcannotbereplenished.

ThemeasuringcellisdeliveredwithaprotectivecapovertheelectrodesandthemembraneTheprotectivecapcontainsKClsolutiontoensurethatthemeasuringelectrodeisreadyforoperation.Theprotectivecapmustberemovedbeforetheunitisused.Iftheelectrodeisnotusedforsometime,filltheprotectivecapwithwater(notdistilled)andreplaceitovertheelectrode.

Thesurfaceoftheelectrodeiscontinuouslyhydromechanicallycleanedwithspecialgrittopreventfouling.Thismeansthattheelectrodemustbescrewedinasfaraspossible.

ThemeasuringcellisconnectedtotheEzetrol® plus. A potentiostatic control circuitmaintains the adjustablevoltagebetween theworkingandreferenceelectrodesconstant.Theresultingmeasuringcellcurrentisproportionaltotheconcentrationoftheoxidisingagent.Thiscomplexmeasuringdeviceensuresanaccurateandreproduciblemeasuredvalueandazeropointthatisstableforalongtime.

pH ElectrodeThepHelectrodehasaceramicmembraneandasilver/silverchloridereferenceelectrode.ThesaturatedKClgelelectrolytedoesnotneedtobereplenished.

TheelectrodeissuppliedwithaprotectivecapfilledwithKClsolutionthatkeepstheelectrodereadyforoperationatalltimes.Iftheelectrodeisnotusedforsometime,filltheprotectivecapwithwater(notdistilled)andplaceitovertheelectrode.

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redox ElectrodeTheredoxvoltageisusedtoindicatethestateofthewaterthatcontainsactiveoxidisingandreducingsubstances.

Thefollowingapproximatevaluescanbeusedforaquickandcompletedisinfectionoftheswimmingpoolwater:

Forfreshwater: pH6.5–7.3UG>750mV pH7.3–7.6UG>770mV

Forseawater(brine):pH6.5–7.3UG>700mV pH7.3–7.8UG>720mV

Theredoxelectrodehasaceramicmembraneandasilver/silverchloridereferenceelectrode.TheelectrolyteisasaturatedKClgelthatdoesnotneedtobereplenished. Theelectrodeissuppliedwithaprotectioncapovertheplatinumelectrodeandthemembrane;thiscapmustberemovedpriortouse.ItcontainsKClsolutionsothattheelectrodeisreadytooperateatalltimes.Iftheelectrodeisnotusedforsometime,filltheprotectioncapwithwater(notdistilled)andreplaceitovertheelectrode.

cable extension and impedance converter RefertoSection7.1“Flowcellmoduleandsensors”fordetailsoncableextensionsforspecialinstallationswithamax.cablelengthofupto50m.

Incaseswheretheelectrodecableisnotlongenoughandanextensionisused,animpedanceconverter(PartNo.U-95607)needstobescrewedontothepHandtheredoxelectrodes.Itconvertstheveryhigh-resistanceelectrodesignalintoalow-resistancesignal.Theimpedanceconverterispoweredbyabuilt-inbatterywithaservicelifeofapprox.5years.TheimpedanceconvertershouldbesenttoSiemensWaterTechnologiesforthebatterytobereplaced.

Multisensor for flow-rate monitoring and temperature measurementTheflowofsamplewateriskeptataconstantrateof33l/hbymeansofaflowcontrolvalve.Iftheflowratedropsbelowaspecificvalue,theflowratemonitorsendsanalarmandswitchesoffthecontrollerfunction.

Theflow-ratemonitormustbeconnected to thedigital inputof theEzetrol® plus. ThetemperaturesensorconsistsofaPT1000sensor.ThetemperatureisshownonthedisplayandisusedfortemperaturecompensationofthemeasuredchlorineandpHvalues.

A Referenceelectrodesystem Ag/AgClB Gel-coatedReference electrolyteC CeramicdiaphragmD Platinumelectrode

A

B

CD

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3.3.3 Electronicmodule

Theelectronicmodulehasaplastichousingwitharemovablecover.

Thefollowingareintegratedintothecoveroftheelectronicsmodule(A):

• Thedisplay(D)• Theoperatorcontrols(E)• AgreenLED(B)toindicatethatthepowerison• EightredLEDs(C)toindicatetheoperatingmode

A

B C

D E

A ElectronicmoduleB Green LEDC Red LEDD DisplayE Operator controls

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Theelectronicmoduleconsistsof:

• Motherboardwithpowerunit,RS485interface• Bufferbatteryfortheclock(A)• ConnectionforthepHmeasuringcell(B)• Connectionsforthechlorineandredoxmeasuringcells(C)• Therelayandtheterminalstripfortheoutputs(D)• Thehousingductsforthesensorcable(E)

A BufferbatteryfortheclockB ConnectionforthepHmeasuringcellC ConnectionsforthechlorineandredoxmeasuringcellsD RelayandterminalstripsforoutputsE HousingductsforthesensorcableFRS232interfaceG Cableglands

Thefollowingareincorporatedintothebaseofthehousing:

• TheRS232interface(F)• Thecableterminalscrews(G)

3.4 functions 3.4.1 OverallFunction

Up to fourmeasured values can be indicated by process-adjustedcomponents:

• Freechlorine• pH value • Redoxvoltage(optional)• Temperature

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Numericalvaluesofthemeasureddata,limitvaluesandsetpointvaluesareshownonthedisplay.Allmeasuredvaluescanbedisplayedatthesametime.


Theflowblockassemblyguarantees a stablemeasurement signalonaccount of:

• robustsensors• constantflowrateofsamplewaterwiththeaidoftheflowcontrolvalve• hydrodynamiccleaningofthemeasuringelectrodesofthechlorine

sensorwithsand• optimumflowaroundallsensors

Themulti-sensorintegratedintotheflowblockassemblymonitorstheconstant flow rate of samplewater, registers the temperature of thesamplewaterandensuresequipotential earthingovera large surfacearea(samplewaterearthing).

3.4.3 Electronicmodule

Theelectronicmoduleisusedforvisualisationandsubsequentprocessingofthemeasureddataaswellasprocesscontrol.Positionersorvariousdosingpumpscanbeconnectedtothecontroloutputsoftheprocesscontrolunit.

Thefollowingfunctionsarepossible:

• Dosing of disinfectant • CorrectionofthepHvalue• Additionofflocculantwithlockingofthecirculationsystem

Uptotworelayoutputscanalsobeusedasalarmcontacts.Theycanbefreelyconfigured.Multipleallocationofeventsispossible.Theadaptionprogramautomatically determines the control parameters for dosingchlorineduringstart-up.

3.4.4 safety functions

Thesafetyfunctionsintegratedintothecontrolunitare:

• safetyshutdownifthereisnoflowofsamplewater• safetyshutdownifthecirculationfails• safetyshutdownifthesupplycontainersignalsitisempty• monitoringofthedosingtime• dosing delay

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• alarmsandcommonalarms• Errormessage• Password protection

3.4.5 interfaces

TheEzetrol®plussupportsthefollowingadd-ons:

• CMS:VisualisationsoftwareforarchivinganddisplayofmeasuredvaluesoncomputerswithaWindowsoperatingsystem

• SECO-S7:PLCdriverfordatalinkstoSiemensPLC,typeS7-300• OPC-Server DataAccess V2.0: Server software for Windows

operatingsystemsfordatalinkstovisualisationsystemwithOPCclientcapability

• ChemWeb-Server: Archiving and display of measured values,remotediagnosis,remoteaccesswithstandardbrowserwithinternetande-mailcapabilities

• Processcontrolsystemsfromothermanufacturers.

3.4.6Digitalinputs

WarnInG:Thedigitalinputsaredesignedforvoltage-freeexternalcontacts.Externalvoltagesmaydamageelectricalcircuits. Digital input DI TheDIcontactfortheflowswitchontheflowcellallowsthedosingtobestoppedandthealarmenabled.

• Beforethedelaytimehasexpired,samplewatermonitoring(0tomax.10min.):ThedosingpumpforchlorineandthedosingpumpforthepHcorrectionmediumcontinuerunningatthesamerate.TheDIsymbolinthedisplayflashes.Display:DI*samplewater?

• Afterexpiryofthedelaytimeofthesamplewatermonitor:thedosing pump for chlorine dosing and the dosing relay for pHcorrectionareswitchedoff.Display:DI*samplewater?

This controller shutdown function is only active in automatic mode.

Digital input DII TheDII contact is normally used as the circulation pump interlock,allowingthecontrollertobestoppedimmediatelywhenthecirculationpumpsareelectricallyisolated.

• ThedosingpumpforchlorineandthedosingpumpforpHcorrectionareswitchedoff.

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Display:DII*ext.STOP? Whenthestandbyfunctionisswitchedon,display:STANDBY.


Digital input DIII• TheDIII contactisgenerallyusedtoindicatethatthechemical

tankisempty. Thedosingpumpforchlorineand thedosingpumpfor thepH

correctionareswitchedoff. Display:DIII*Carboy?


noTE:Oncethecontacthasbeenre-establishedtheremaybeadelayinrestartingthecontrollerduetothedosingdelay.ThedigitalinputsDIIandDIIIaredeactivatedondelivery(fittedwithjumpers).Toactivatethefunction,removethejumpersandconnectoneexternalcontacttoeachinput.

3.4.7Controllertypes

ThefollowingtypesofcontrolareintergratedintheEzetrol® plus and areavailableforselectiondependingonthedosingdeviceconnected.

Controllerfor type Parameterdesignation action

Positionerwithoutfeedback

3-point Positioner DosingCl2pHcorrection

MotorDosingpump+solenoidvalves(pulsedurationcontrolled)

2-point Dosingpump2P DosingCl2pHcorrectionä(acid)orpHã(alkali)

2Motordosingpumps(pulsedurationcontrolled)

3-point Dosingpump3P pHcorrectionä(acid)orpHã(alkali

Pulsepump(pulsefrequencycontrolled)

2-point Solenoidpump2P DosingCl2pHcorrectionä(acid)orpHã(alkali

2solenoidpumps(pulsefrequencycontrolled)

3-point Solenoidpump3P pHcorrectionä(acid)orpHã(alkali

Dosingrelease(dosingcontact)

2-point Dosingcontact DosingCl2e.gforOSEC-A)

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Positioner(withoutfeedback)Usingtheintegratedcontroller,itispossibletoimplementfeedcontrolincombinationwithapositionerasanactuator.Dependingonthecontroldeviation,thepositionercancontrolthequantityofgasfed,e.g.usingtheV10kgasfeeder.

Thecontroldirection(controlofthepositioner)isindicatedbytheLEDinthedisplayfield.

Dosingofchlorinegasisincreased

Dosingofchlorinegasisdecreased

Dosing of CO2 gas is increased

Dosing of CO2 gas is decreased

In'Manual'mode('Cl2actuator'or'pHactuator'menu)thepositionercanbeopenedandclosedbypressingthes and t keys

noTE:IntheeventofapowerfailureanypositionersconnectedtotheEzetrol®plusarenolongeractuatedandstopmoving.Thisdoesnotinterruptthegasfeed.Thismayresultinadangerousoverdosingofchlorine.

Toensurethatanypositionersconnectedautomaticallyshutdownto0%connectanexternalphasetoterminal53(forchlorine)or47(forpH).Thisensures that if thepower to theEzetrol® plus fails, this external phase switches the relay so that the positioner closes until it reaches the end position at 0%.

Pulse duration controller for dosing pumps The dosing pump is switched on for the calculated timewithin anadjustablecycleperiodTp(relaycontact).ThecycleperiodismainlydeterminedbythereactiontimeoftheconnectedsystemandenteredasthecycleperiodTp. Example: cycleperiodTp 100s OutputvalueYout 30% Dutycycle 30s Off-dutycycle 70s

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Pulse-frequency controller for solenoid pumpsSolenoidpumpsarecontrolledwith0to100or0to120pulsesperminute,dependingonthespecificationoftheconnectedpump.

Thedutycycleduringeachdoseis0.3s.Thebreaktimeiscalculatedtobebetween0.2and60sdependingonthedosingrate.

Example:-Forapulsepumpwith120pulses/min.

Youtin% 100 84 72 56 50 33 25 10 5 1 0Pulses/min 120 96 85 75 60 40 30 12 6 1 0

Manual actuation of a dosing pump or a solenoid valve1 Press ttoaccessthe“Mode”menu.2 Press 3,“>Mode”isdisplayed.3 Presstuntil“Manual”isdisplayed.4 Confirmbypressing3. 5 Pressttoaccessthe“pHactuator”menu(orsimilarlytoaccess

the“Cl2actuator”menu).6 Press3,“>OFF”,“pH+”or“pH-”isdisplayed. Toswitchonthedosingpump:Presss. Toswitchoffthedosingpump:Presst.

Cl2dosingpumprunning

“IncreasepH“dosingpumprunning

“DecreasepH”dosingpumprunning 2-point pulse duration controller for dosing pump and 2-point pulse frequency controller for pulse pumpOnedosingpumpisusedtodecreasethepHvalue(dosingofacid),theotherdosingpumpisusedtoincreasethepHvalue(dosingofalkali).

Thistypeofcontrollerisusedifonlyonepumpisconnected(acidoralkali).Thecontroldirection(pH+orpH-)mustbecorrectlyselected.

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ControldirectionpH+(alkali) ControldirectionpH+(acid)

Ifthecurrentvalue>setpointthepumpisnot Ifthecurrentvalue<setpointthepumpisnotactuated. actuated.

TheactuationstatusofthedosingpumpsisindicatedbytheLEDsonthedisplay:

'IncreasepH'dosingpumprunning(pH+/alkali)

'DecreasepH'dosingpumprunning(pH+/acid)

�-point pulse duration controller for dosing pump and �-point pulse frequency controller for pulse pump OnedosingpumpisusedtodecreasethepHvalue(dosingofacid),theotherdosingpumpisusedtoincreasethepHvalue(dosingofalkali).

Ifthesetpoint=actualvalue,nopumpisactivated(neutralzoneXsh).

Thecontrolrangeis0to+100%and0to-100%.

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2�WT.050.425.00�.GE.IM.0�09


Thecontroldirection(controlofthedosingpumps)isindicatedbytheLEDsinthedisplayfield:

'Increase'pHdosingpumprunning(pH+/alkali)

'Decrease'pHdosingpumprunning(pH+/acid)

Dosing contact e.g. for osEc-aA special controller is required for controlling electrolysis units topreventexcessiveon/offswitching(onaccountoftheresponsetimesoftheelectrolysisunit).

Thiscontrolleroutput,therefore,usesaminimumdutycycleaswellasaswitchinghysteresistominimisetheswitchingcycles.

IfthevaluefallsbelowthespecifiedCl2setpointminushysteresis(e.g.setpoint0.50mg/l -hysteresis0.05=0.45mg/l), thecontrolleroutputswitcheson.

Thecontrolleroutputremainsactiveforatleastthesetminimumdutycycle.Ifthesetpointisexceededandtheminimumdutycyclehasexpiredthecontactswitchesoff.

Theminimumdutycycleisignoredinthemanualmode.

3.4.8 Controlparameters

Controlparametersareinputvariablesthatdeterminethecontrolfunctionsofacontroller.Differentparametersapplytoeachtypeofcontroller.

max. pulse/minThemax. pulses/min parameter only applies to pulse pumps.Thisparameterisusedtosetthemaximumnumberofpulsesperminuteinaccordancewiththepumpused.

Setting range:Thepulsesmax./minparametercanbesettoeither100or120pulses.

setpointThespecifiedvalueatwhichthecontrolparameter(chlorine,pH)istobemaintainedbythecontroller.

Setting range:Inaccordancewiththecorrespondingmeasuringrange.

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Tn On the basis of the integral action timeTn, the dosing rate changesconstantlyuntilthesetpointisreached.ThehigherthevalueofTn,thelongerittakesuntilthecontrollerincreasesthedosingrate.

Tnhigher:ControlresponseisslowerTn lower: Control response is faster

Setting range: TheparameterTncanbebetween0–100min(Tn=0meansthatthe'I-element'isdeactivated,i.e.apureP-controlresponseapplies).Itmaynotbepossibletoreachthesetpointvalue.

IfusingapositionercontrolleritisimpossibletosetTnto0(off).

TpTheparameterTponlyappliestodosingpumps.WiththecycleperiodTpaswitchingperiodisdefined,whichmustbecoordinatedwiththerespectivepumptype.

Setting range:TheparameterTpcanbesettobetween10–180s.

Example:FastdosingpumpscorrespondtoalowTp;slowdosingpumpscorrespondtoahighTp. ThecontrolparameterTpmustalwaysbeadjustedtosuit thedosingpumpemployed:

Dosingpump upto20 20–40 40–80 80–125 125–200 strokes/min

Tp value 120 100 60 30 15

TsTimerequiredtoreachtheendvalueofthemeasuringrangewith100%dosingrate(formoreinformation,pleasesee“Adaption”).

Setting range:TheparameterTscanbesettobetween0.1–480.0min.

Tu Time required between start of dosing and clear recognition of thereaction.

Setting range: TheparameterTucanbesettobetween1–3600s.

2�WT.050.425.00�.GE.IM.0�09


noTE: If the valuesTu andTs aremanuallymodified, the controlparametersXpandTnarere-calculated.

Ty TheparameterTyonlyappliestopositioners.Tyisthetimewhichthepositionerrequirestoadjustfrom0%to100%.

Setting range:TheparameterTycanbesetfrom10–180s.

Xp Thecontrolamplificationisdeterminedbymeansoftheproportionalfactor.ThelowertheproportionalfactorXpisselectedin%,thegreaterthedeviationfromthesetpointisamplified,andthemorequicklythecontrollerattemptstocontrolthedeviationfromthesetpoint. The control amplification factor is calculated using the followingequation:

Factor=(1/Xp)x100%

Settingrange:TheparameterXpcanbesettobetween1%(factor100)–1000%(factor0.1). HysteresisThehysteresisparameteronlyappliesto3-pointcontrollersandthedosingcontact.Thereisnocontrolleroutputintheneutralzone.

Setting range: 0.01-0.50mg/l(Cl2)0.01-0.50pH(pH)

control directionThecontroldirectioncanonlysetfor2-pointcontrollersandpositionersfor pH correction.

Setting range: pH+orpH-

min. on time Theparametermin.ONtimeonlyappliesfordosingcontactanddefinestheminimumdutycyclefordosing.

Settingrange:1-120min

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3.4.9 Alarms

ThealarmsaresentviatworelaycontactsandtheredLED.Eachalarmcanbeassignedthefollowingfunctions:

• Limitvalue=min allmeasuredvaluesareindividually selectable(Cl2,pH,mV)

• Limitvalue=min allmeasuredvaluesareindividually selectable(Cl2,pH,mV)

• Digitalinputs 1–3canbeselectedindividually

Thetypeofalarmcanbeselectedinthe“Alarmrelay1and2”and“Relayfunction“menus.Therearethreealarmtypes. Theresponseofallalarmtypescanbeinfluencedbyenteringadelay(td)(pleaserefertothediagramsinthissection).

Unlatched alarm without acknowledgement option(N.O. unlatched N.C unlatched) TheLEDlightsupintheeventofanalarmandgoesoutautomaticallywhenthealarmconditionsareeliminated.Thesameappliestothecontact.

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25WT.050.425.00�.GE.IM.0�09


latched alarm with with reset acknowledgement option(N.O.latchedN.Clatched)TheLEDflashesintheeventofanalarmuntilthealarmisacknowledged.TheLEDgoesout,alsoifthesetalarmconditionsstillapplywhenthealarmisacknowledged.

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Latched alarm with confirmation (acknowledgement option)(N.O.latchedacknowledgeN.C.latchedacknowledge)The LED flashes in the event of an alarm until the alarm isacknowledged.

• If the alarm condition is no longer present when the alarm is

acknowledged,theLEDgoesout.

• Iftheconditionwhichcausedthealarmstillapplieswhenthealarmisacknowledged,theLEDchangesfromflashingtopermanentlit.TheLEDstaysonuntiltheconditionwhichcausedthealarmiseliminated(auto-reset).

WT.050.425.00�.GE.IM.0�092�


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3.4.10 interfaces

Two interfaces are available formaking external connections to theEzetrol®plus.

rs2�2 TheRS232interfaceisusedtoconnectaprinter

SpecificationoftheRS232interfaceforprinteroperation:

• Datatransfer9600baud• Paritystraight• Lengthofword8bit

Anoperatinglogisprintedforeachdayofoperation(seebelow).

Eachdailylogconsistsofalogheader,trendgraphsandtheoutputofthedailymin.andmax.values.

Theavailablemeasurementsandthecorrespondingparameters,suchasthesetpoint,XpandTn,areprintedinthelogheader.Thedateofthelastcalibrationisalsodocumented.

2�WT.050.425.00�.GE.IM.0�09


Thisisfollowedbyaprintoutofthetrendgraphs,includingthemeasuringrangesandthecurrentoperatingmode,asabargraph.Thetrendgraphsarerecordedatone-minuteintervals.

Thecalibrationtimesforeachmeasurementareprintedat theendofthelog.

Printer log

noTE: Themaximumcablelengthbetweentheinterfaceandtheprintermustnotexceed15m.

Toprint logs,SiemensWaterTechnologiesofferaRS232logprinter(AAC5995)aswellasaprinterconnectingcable,3m(AAC5887)or15m(AAC5914)long,asaccessories.Setupinstructionsareprovidedwiththeprinter(FAE1208). noTE:InformationontheRS485interfacecanberequestedseparatelyfromSiemensWaterTechnologies.

IfaRS485logprinterfromWallace&Tiernan(AAB9187)isalreadyavailable (e.g. fromaprevious system), it canstillbeusedwith thissystembyconnectingittotheRS485interface.

WT.050.425.00�.GE.IM.0�092�


3.5 TechnicalData3.5.1 Electronicmodule

Housing Dimensions(WxHxD):320x310x175mm Weight: approx.5kg Enclosure: IP66

Platform Mainsconnection: • 200–240VAC±10%,50–60Hz,14VA, Fuse0.63A(T,type:TR5 or • 100–120VAC±10%,50–60Hz,14VA, Fuse0.63A(T),type:TR5

Insulation • Overvoltage category 2 • Contaminationlevel2

Operatingconditions • Ambienttemperature0–50°C • OperatingenvironmentNodirectsunlight • Atmosphericpressure75–106kPa • Storagetemperature-20to+70°C • Noiseemission<45dB

Digitalinputs 3xfloatingcontacts(<100Ohm) PowersupplyviaEzetrol® plus • D1:Samplewatermonitoring • D2: circulation • D3:Tankempty

Measurementinputs 1xtemperatureinputPT1000(0–50°C/32–122°F)with sensor error display 3xmeasuredvalueinput(electricallyisolatedupto50Vtoground) Sensor connections for

• Freechlorine(0–3mg/l) • pHvalue(pH4–9) • Redoxpotential(400–900mV)

Relayoutputs Switchingvalues • 5A,250VAC,1250VAmax • 5A,220VDC,150Wmax • 5A,1/6HP125,250VAC • 5A,30VDC,30Wmax • 1A,30VDC–-0.24A,125VDC

29WT.050.425.00�.GE.IM.0�09


mAoutputs Option

3xoutputs • Output0/4–20mA • Accuracy<0.5%FS • Loadmax.600Ohm • Max.temperaturedrift0.2%/10°C • Loadmonitoring • Electricallyisolatedupto50Vtoearth

Interfaces 1xRS232fordirectprintercontrol(notelectricallyisolated) 1xRS485forconnectionto: • ChemWeb-Server • OPCServerDataAccessV2.0 • CMS Software 2.2 • SECO-S7

not electrically isolated

Displayand 1xoperatingpanelwith6keys operating unit 8xRedLEDsforindicationofoperatingconditions

1xGreenLEDforindicationofthepowersupply 1x display: 2x16characters,luminous


Housing Dimensions(WxHxD):215x375x155mm Weight: approx.1.5kg

Connections Samplewater: 5/16"PVChose or 5/16"PEhose Threadedconnection ½"

Flowcontrolvalve Flowrate: approx.33l/h(controlled) Controlrange: 0.2-4.0bar Backpressure:max.1.5bar(pressurised)

Samplewatertemperature: max.50°C

WT.050.425.00�.GE.IM.0�09�0


Multisensor Switchingpoint: 21l/h±3l/h

Switchinghysteresis: 2l/h

Temperaturesensor: PT1000 3.5.3 sensors

noTE: Allsensormeasurementinputsareelectricallyisolatedto50Vto ground.

Freechlorine Model(sensor): 3electrodesensorwithadditional electrolytesaltfilling

Measuring principle: potentiostatic amperometry

Temperaturecompensation: 0to50°C Max.temperaturedrift: 0.2%/10K

Measuringrange: 0–3mg/l

Samplewaterconductivity: 200µS/cm–200mS/cm

Storagetemperature: -10to30°C

pHvalue Temperaturecompensation: 0to50°C

Max.temperaturedrift: 0.2%/10K

Measuringrange: 4–9pH

Samplewaterconductivity: 200µS/cm–200mS/cm

Storagetemperature: -5to30°C

Redoxvoltage Temperaturecompensation: 0to50°C

Max.temperaturedrift: 0.2%/10K

Measuringrange: 400mV–900mV

Samplewaterconductivity: 200µS/cm–200mS/cm Storagetemperature: -5to30°C

��WT.050.425.00�.GE.IM.0�09


4. installation 4.1 Versions

Completesystem

230V Cl2+pH

Completesystem AAC1791consisting ofElectronicmodule AAD8479Flowcellmodule AAE2503

scope of supply Dependingon the individual order, the scopeof supply includes thefollowing:

• Electronicmodule• Flowcellmodule,pressurized• StripsforlabellingtheLEDs• Accessoryset,comprising: fivecableterminalscrews sixblindterminalscrews bushesforclosingemptyductsforthesensorcablesonthe electronicmodule finefilter• Sensorswithaccessories(dependingontheorder): Freechlorine(Cl2) pH value redox • Generallypre-mountedonauPVCbackboard,theunitissupplied withsampleinstallationkit,including: 30mofsamplehose ½"x5/16"strainer ½" x 5/16" push fit sample isolation valve

WT.050.425.00�.GE.IM.0�09�2


• The pre-mounted kit assembly includes: Mounting kit Sensor cleaning solution Operating manual

4.2 transport and storage 4.2.1 transport

Theunitissuppliedinstandardpackaging.Duringtransportthepackagedunitmustbehandledcarefullyandshouldnotbeexposedtowetweatherormoisture. Checkthatthetransportpackagingisundamaged.

Intheeventofdamage,pleaseinformthetransportcompanyimmediately,asyourrightstocompensationwillotherwisebelost.

Iftheunitisdamaged,pleasecontacttherespectiveWallace&Tiernanagencyimmediately.

Keepthepackaginguntiltheunithasbeencorrectlyinstalledandtakeninto operation.

4.2.2 storage

Storetheunitandthesensorsinadryconditionwithoutanyresidualwaterinadryplacethatisnotexposedtotheweather.Storagetemperature,seeSection3.5“TechnicalData”.

4.3 Installation.

Only those persons suitably qualified/trained should undertake the installation of an Ezetrol®plus. Only those persons qualified to carry out electrical installation works should undertake the installation of electrical wiring of an Ezetrol®plus.

4.3.1 transport

During transport the Ezetrol®plus must be handled carefully and should not be exposed to wet weather or moisture.

4.3.2 unpacking

The equipment should be unpacked in a clean, dry area, preferably in the place in which the unit will be installed. All parts should be checked against the enclosed packing note before the packing materials are discarded.

��WT.050.425.00�.GE.IM.0�09


Upon receipt, immediately check if package is free from damage and that the contents are complete. Report immediately any damage. Handle the sensors carefully when unpacking, as they can be broken if dropped on a hard surface.

notE: Each sensor is shipped with its tip immersed in a small cap of fluid, to prevent it from drying out. Leave the cap in place on the tip until you are ready to install the sensor into a sample cell with a fully established water flow.

4.3.3 location

There are a number of factors that should be considered as you select a location for the controller. These include, but are not limited to:

• A sound mounting surface to adequately support the board assembly.

• A location that is accessible, free from chemical fumes, excessive heat and dampness should be chosen as they can seriously damage the controller. Damage due to chemical fumes, including hydrochloric acid fumes, will invalidate the warranty.

• The controller should be easily accessible for taking display readings or making operating adjustments. Lighting should be adequate and clearance must be provided for service. Do not mount in direct sunlight.

• High voltage transformers and other energy-emitting electrical devices can affect the delicate sensing circuits of the controller. Locate the board assembly as far away as practical from sources of interference and be sure that it is electrically grounded as specified in the wiring diagrams.

• The Ezetrol®plus is designed to be permanently powered. The main power into the unit should NOT be interlocked with main circulation pumps. The controller has a secondary input (external stop), which is used to isolate the dosing pump outputs. This input is volt-free and must not be powered (or the controller will be damaged, invalidating the warranty).

• The main power feed should be provided from a ‘clean’ 10-amp switched and fused source.

• The position of the nearest drain should also be given consideration, as the standard Ezetrol®plus supply requires a drain that is open to atmosphere to which the sample water to runs. An optional return to filtration, post filer, pipework kit is available.

WT.050.425.00�.GE.IM.0�09�4


4.3.4 Mounting

The Ezetrol®plus should be positioned at an easily read and accessed height. Siemens Water Technologies recommend that the centre of the display is at a height of 1650 mm.

Drill a 9mm hole, in a convenient position, in each corner of the backboard.The holes in each corner of the board should be used to pass an 8mm bolt through. The fixing should be passed through the mounting board and one of the spacers supplied, at each corner.

The board should NOT be fixed directly against the wall, as this would cause damage to the sensor leads that are passed through the back of the board. Spacers are provided to hold the board away from the wall.

4.3.5 Samplewatersupply

Required pressure at flow cell.Minimum 0.25 barMaximum 4.0 bar

A flow of approximately 30 l/hr is required for the accurate operation of the chlorine sensor; the flow regulator automatically limits the amount of water flowing through the cell. A flow in excess of 30 l/hr would be held within the sample water sample pipe work and will eventually pass through the flow cell. It is important to use the hose supplied and not to increase the bore of the water supply pipe to prevent undue lag-time between the water entering the sample hose and passing the sensor tips.

�5WT.050.425.00�.GE.IM.0�09


Water from the flow cell is normally fed to the drain. It is also possible to return the ‘waste’ water back to a post filter point in the pool water return, at a maximum back pressure of 1.5 bar. A return water installation kit of parts is available.

If the flow cell sample supply water pressure is less than 0.25 bar, a sample water pump may be installed either from the pool or from the circulation system (preferred). The use of a booster pump must include a loop of pipe work with a sample tapping to draw of a proportion of the water to pass through the sample cell. This prevents the entire pump pressure from being put directly onto the flow regulator and also stops the creation of an artificial lag time.

The sample water supply point must be installed in the delivery pipework between the circulation pump(s) and the filters. However, the sample water point must be installed upstream of the flocculant dosing station an the pressure applied directly to the measuring cell must be at least 0.2 bar. The sample water point must be chosen to ensure that the water sample is representative with a constant, bubble-free flow. The sample supply hose is supplied with the kit of parts. The sample line should be as short as possible. If the sample line is to be longer than 30m refer to Siemens Water Technologies.

A sample strainer must be fitted to ensure that the flow switch, flow regulator and sensors cannot be fouled or damaged by solids passing from the circulation pump supply.

Failure to use the strainer provided will allow debris such as ‘hair & lint’ to pass into the flow regulator and the flow cell. This will compromise the performance of the Ezetrol®plus and will invalidate the warranty.

For sample runs of 20m upwards, a loop from the circulation pump delivery pipework should be taken to a point below or adjacent to the board mount assembly and returned to the suction side of the circulation pump(s).

The sample loop should be run in ½” uPVC pipe, suitably supported throughout its entire length. A ½” tee adjacent to the flow cell should be fitted and a minimal length of 5/16" hose and connected to the adapter on the strainer inlet, out let and then on the to the flow switch mounted directly under the flow cell. The fittings from the tee to the flow cell are included the ½” uPVC pipe and fitting are to be supplied by others.

Please note that if 50% duty circulation pumps are employed, running only one pump only will reduce the sample rate of flow to the flow cell.

WT.050.425.00�.GE.IM.0�09��


Attention should be given to the amount of flow during this period and, if adjusted, the subsequent flow when the second pump flow is restored.

Should the ‘waste’ water be returned to the post filter circulation pipe work remove the ‘tundish’ from the board and the threaded insert, plus the spare threaded insert, used to support an isolation valve.

4.3.6 sensor connection

Remove protective caps from the pH and chlorine sensors. Screw sensors into the flow cell. The chlorine sensor has an integral lead that can not be removed from the sensor. The back nut/thread on the sensor may be screwed into the flow cell without rotating the sensor or ‘knotting’ the lead.

There should be no air bubbles in the tip of the pH sensor, if there are, remove them by gently shaking the sensor (similar to shaking a clinical thermometer).

After start-up, all sensors require a settling-down period of approximately two - four hours. Calibration and other adjustments should only be made after this period and automatic feed control should be switched off. The Ezetrol®plus should not be left in automatic feed mode overnight for 24 hours after first fitting the sensors.

Do not use stabilised chlorine products, as the Ezetrol®plus will not function correctly.

Sensor warranty will be void if the above is not complied with.

4.3.7 Electricalconnections

Only those persons qualified to carry out electrical installation works should undertake the installation of electrical wiring of an Ezetrol®plus.

The electrical supply to the board assembly should be wired via a double pole isolation switch. The supply should be fused at 10 amp max and the location of the fuse clearly identified.

Please refer to wiring diagrams at the rear of this manual for identification of all the terminals to enable cable connection.

The Ezetrol®plus is not provided with internal dosing relay fuses. To ensure the relays and PCB are protected external fuses must be fitted.

��WT.050.425.00�.GE.IM.0�09


WarnInG: The Ezetrol®plus is designed to be permanently powered. The main power into the unit should NOT be interlocked with main circulation pumps. The controller has a secondary input (external stop), which is used to isolate the dosing pump outputs. This input is volt-free and must not be powered (or the controller will be damaged).

Power requirement: 230V AC, 1PH, 50 Hz.

4.3.8 Samplewaterdrainageline

Thesamplewaterusuallydrainsawaythroughanunpressurisedline.However,apressurisedlinewithmax.1.5baroverpressurecanbeusedasareturnline.Thereisaballvalveinstalledinthesamplewaterreturnlineforthis.Itcanbeusedtoisolatetheflow-throughadapter,e.g.duringcalibration.Thesamplewateradmissionpressuremustalwaysbeatleast0.2barhigherthantheback-pressureonthecelloutlet.Pressurelossesinthereturnlinemustalsobetakenintoconsideration.

HoseConnectors-AAC1632½"Femalex¼"HosePushFitAdaptor

4.4 Commissioning

WarnInG: Electricalhazard.Onlyauthorisedandqualifiedelectriciansarepermittedtoinstallthedeviceandopenthehousing.Theunitmayonly be put into operationwhen the housing is closed, andmust beconnectedtoprotectionearth.Modificationstotheunitthatgobeyondthosedescribedinthismanualarenotpermissible.

4.4.1 start-up procedure

Theunitcanbetakenintooperationafterithasbeeninstalled.

Thefollowingtablecontainstheindividualcommissioningstepsintheircorrectsequence. More detailed information is contained in the sections listed in the“Reference”column.

Completion of each task can be confirmed in the “Completed”column.

NOTE: If this installation sequencecannotbe compliedwith, pleasecontact the following service address: SiemensWaterTechnologies,PrioryWorks,TonbridgePhone+44(0)1732771777Fax+44(0)1732771800e-mail:[email protected].

WT.050.425.00�.GE.IM.0�09��


ser. no. task reference Completed1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

Fillingcellgrit

Insertthesensorsandconnect

Connectingthesamplewater

Checkthemainsvoltage,adjustifnecessary

Wiretheunit

Closethehousingcover

Switchtheuniton

Switchtooperatingmode'MANUAL'

Selectthelanguage

Settingthedateandtime

SetOverfeedtimeinaccordancewithsystemparameters.RefertoSiemensWaterTechnologies

SetcontroloutputforCl2,ifnecessarysetpositionerrunningtime'Ty'or'max.pulses/min'

Adjustvaluesfor'Xp'and'Tn'tocontrolloop(thesevaluesmaybeoptimisedlaterbyadaptionormanually)

ChecksetpointforCl2control,adjust,ifnecessary

Ifadosingpumpisused,checkthe'Tp'parameterandadapttothepump,ifnecessary

ChecklimitvaluesforCl2('min'and'max'),adjustifnecessary

4.4.2

Displaymenu

SETUPmenu

SETUPmenu

SETUPmenu

Cl2parameter

Cl2parameter

Displaymenu

Cl2parameter

Limitvalues

�9WT.050.425.00�.GE.IM.0�09


ser. no. task reference Completed

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

ForpHmeasurement:SetcontroloutputforpH,ifnecessary,setpositionerrunningtime'Ty','Xsh'or'max.pulses/min'

Setthecontroldirection

ChecksetpointforpHcontrol,adjustifnecessary

Adaptthevaluesfor'Xp'and'Tn'tothecontrolloop

Ifadosingpumpisused,checkthe'Tp'parameterandadapttothepump,ifnecessary

ChecklimitvaluesforpH('min'and'max'),adjustifnecessary

ForRedoxmeasurement:Checklimitvaluesforredox('min'and'max'),adjustifnecessary

Subsequentprocedures:Configure the alarms as required

Configure the analog outputs as required

Configure the RS232 printer interface

Configure the RS487 interface as required

Usingmenu'actuatorCl2/actuatorpH',checkthatallconnectedactuatorsarefunctioningcorrectly

Calibrate the fitted sensors after approx. 1hourrunning-intime

Switchtothe'auto'operatingmode

Repeatcalibrationafter24hoursrunningtime

pHParameters

pHParameters

Displaymenu

pHParameters

pHParameters

Limitvalues

Limitvalues

Alarmrelay1/2

SetupmA

Setup

Setup

Displaymenu

SeeSection5.2

Displaymenu

SeeSection5.2

WT.050.425.00�.GE.IM.0�0940


4.4.2 Fillingcellgrit

WarnInG:Ifusingpressurisedversions:Beforeopeningthecover,alwaysshutoffthesupplylineandthedrainagelineandthenreleasethepressureinthecellbodywiththedrainscrew.

1 Unscrewthecoverfromthecellbody

2 Fillhalfascrewcapofwhitecellgritformeasuringcells(U¬93275)intothecellbody.SeeSection6Maintenance.

3 Refitthecoverontothecellbody. 4.4.3 Insertthesensorsandconnect

arrangement of the sensors

A

B

C

A Cl2 B pH C mV

1 Removetheprotectioncapsfromthesensors.

2 Fitthesensorsintothecoverofthecellbody,asshownabove.Thesensorsaremarkedasfollows:

A: Cl2: sensorforfreechlorine,labelled“DES”B: pH: pHsensor,labelled“pH”C: mV: sensorforredoxvoltage,labelled“mV”

noTE:Keepthesensorprotectivecapsforsubsequentuse.

4�WT.050.425.00�.GE.IM.0�09


arrangement of the cables

connecting the sensor cables1 Placethesensorcableswiththeattachedbushesintothecableducts

ofthehousingandconnecttotheelectronicmodule,seeelectricalwiringdiagrams.ThecableofthepHsensorissolderedon.

2 Dependingonthesensordesign,eitherplugorplugandscrewthecableintoplace.

3 Mount the multi-sensor with the temperature measuring cabletotheflowcontrolvalve.Placethetemperaturemeasuringcablethroughaductandconnecttotheelectronicmodule-refertothewiringdiagrams.Notethattheshieldofthefour-coretemperaturemeasuringcablemustalsobeconnected.

4 Insertthesuppliedbushesintoductsthatarenotinuseinordertosealthehousing.

4.4.4 Connectingthesamplewater

caUTIon:Thesamplewatersupplypointmustbelocatedupstreamof the flocculant dosing station.Otherwise, it could influence themeasurements.

sample water inlet connection1 Do not use any copper pipe.

WT.050.425.00�.GE.IM.0�0942


A B C2 Thepressureinthesamplewaterinletmustalwaysbewithina

rangeofmin.0.2tomax.4bar.Atthesametimethepressureinthesamplewaterinletmustgenerallybe0.2barhigherthaninthesamplewateroutlet.

3 Topreventlongprocesstimes,ensurethatthelinesinthesamplewaterinletareasshortaspossible.

4 Anexternalstrainermustbeprovidedforthesamplewaterinlet(PartNo.UXA92304)withameshsizeof0.5mm.

4.5 Connectthedevicetothepowersupply

Refertotheelectricalwiringdiagramsatthebackofthismanual. WarnInG:Onlyauthorisedandqualifiedelectriciansarepermittedtoinstallthedeviceandopenthehousing.Theunitmayonlybeputintooperationwhenthehousingisclosed,andmustbeconnectedtoprotectionearth.Modificationstotheunitthatgobeyondthosedescribedinthismanualarenotpermissible. Thedeviceisnotequippedwithamainsswitchandisinoperationassoonasthesupplyvoltageisapplied.Anexternalswitchorcircuitbreakeristhereforenecessary.Theconductorcross-sectionofthemainscablemustbeatleast0.75mm²;amainsfuseof6Amustbeprovidedbythecustomer.Whenconnectingsystemcomponents(e.g.devices,motors,pumps)andwhenenteringoperatingdata,thesystemcomponentsmustbeswitchedoffin order to prevent uncontrolled activation or any incorrect function.

4�WT.050.425.00�.GE.IM.0�09


caUTIon:Toensuresafeandcorrectcommissioning,knowledgeofthe operation, connected electrical load,measurement signals, cableassignmentandfuseprotectionoftheconnecteddevicesandmachinesandtherelevantsafetyregulationsisrequired.Commissioningoftheunitmaythereforeonlybeperformedbyqualifiedandauthorisedelectricians.

Incorrectlyconnecteddevicescanbedamaged,possiblyirreparably,orcausefaultsinotherequipmentwhentheyareswitchedonorinoperation.Ensurethatthemeasuringandcontrolcablesarenotconfusedormakecontactwithoneanother.Never connectordisconnect anycables towhichvoltageisapplied. noTE:Thepowersupplylinemusthavea6Aswitchedfusetoprovideanon/offfacility.

checking the mains voltage/connecting the unit1 Removethe5screwsontheelectronicmodule.

2 Carefullyremovethecover.Unplugthecablebetweenthecoverandthehousing.

3 Connectthemainssupplyinputsandoutputstotheterminals(A)accordingtothecircuitdiagram(seealsothefollowingsections).

4 Observethefollowingwhenconnectingtheexternalsignals. Digitalinput1: Flowratemonitor Digitalinput2: Circulationpumpinterlock Digitalinput3: Emptytankalarm

WarnInG:Donotconnectmainsvoltagestodigitalinputs:

WT.050.425.00�.GE.IM.0�0944


caUTIon: To avoid overchlorination or amalfunction of the pHcontroller,thecontrolsystemmustbeconnectedtothecirculationunit.TodothisconnectoneenablecontactofthecirculatingpumptodigitalinputDII(terminals3and4)(seealsoSection3.4.6digitalinputs).

replacing the housing coverIfallcablesareconnected:-

1 Pluginthecablebetweenthecoverandthehousing.

2 Replacethecoveronthehousingandtightenthe5screws,makingsurethatthecablebushingsareseatedcorrectlyandthatnoneofthecablesaretrapped.

4.5.1 Connectingaflocculantpump

Theflocculantpumpiscontrolledviaanunusedalarmrelay.Thealarmrelayisprogrammedsothattheflocculantpumpstopswhenthecirculationunitisstopped.Thisrequiresanenablelinetobeconnectedfromthecirculation control unit to digital input DII.

Menusettingtoactivatetheenableinputofapulsepumpordosingpumpwiththeaidofalarmrelay1(contactonterminals41and42openforcirculationstop):

• Menupath6(alarmrelay1)

• Relayassignment:DII(otherwisenoselectionisdisplayed)

• Relayfunction:N.O.unlatched

• Delay0min.

4.5.2 Switchingtheuniton

requirements• Electricalconnectionsarecomplete.

• Electrodes are inserted and connected.

• Cellgrithasbeenadded.

• Samplewatersupplylineanddrainlineareconnectedhavingbeentestedforleaksandpressure,samplewaterflowing.

45WT.050.425.00�.GE.IM.0�09


1 Switchonmainsvoltage. theprogrammeversionisbrieflydisplayede.g. EAC1069 V:3.01 22OCT2008 thenthebasicdisplayappears.Theunitisreadyforoperation.

2 Settheparametersforthepositioner,theconnectedpumpandthecontroldirectioninthemenupath'Parameters'.

3 Setthelimitvaluesandfunctionsinthemenupath'Alarms'.

4 Ventthedosingpump,ifnecessary.

5 Caslibratethemeasuringsignalsafterapprox.1hourrunning-intime.Repeatcalibrationafter24hoursofoperation.

6 Checkthemeasuredvaluesbyamanualmeasuremente.g.DPD.

7 Switchovertotheautomaticmodeandcheckthefunctionofthedosingandcontrolsystems.

8 Checktheresponsetofaults

Fault Display responseSamplewater1stop DI flashes

*samplewater?Chlorinemeasurement:Immediately:Dosingpumpcontinuestodoseunchanged,orpositionernolongermoves.

DIstatic*samplewater?

Afterthedelayhaselapsed:Thedosingpumpswitchesofforthepositionercloses

Circulationstop DII*ext.STOP?*(static)orSTANDBY

Thedosingpumpswitchesofforthepositionercloses

Emptydosingtankalarm

DIII*Carboy?(static)

Thedosingpumpswitchesofforthepositionercloses

Airbubbles,thatmayhindertherotationofthecleaning,gritdisappearafteranoperatingtimeofapprox.48hours.

4.6 SystemShutDown

caUTIon: RiskofuncontrolleddosingofchlorineandpH-correctionchemicals.Shutdownthedosingsystem.Iftheinstallationsiteoftheflowcellmodulecouldbeaffectedbyfrost, thesystemmustbeshutdownwellinadvanceofanyfreezingconditions.

WT.050.425.00�.GE.IM.0�094�


1 Switchoffthepowersupply.

2 Emptythesamplewatersupplylineanddrainageline.

3 Emptythecellbody.

4 Dismantlethefilterhousingandcheckthevalvehousing.

5 Whentheremaningwaterhasdrainedfromtheflowcontrolvalve,refitthefilterhousingandcheckthevalvehousing.

6 Removethesensorsfromthecellbodycoveranddisconnectfromthecable.

7 ApplyaKClsolutiontotheprotectioncapsoftheCL2,pHandredox electrodes.

8 Storethesensorsinafrostfreeplace.

noTE: TheKClreservoir(PartNo.AAC4084)canbeusedinsteadoftheprotectioncap.

A Sensor AB Sealing cap

C O-ring B CD Reservoir D

E Pedestal E

recommissioning1 Preparethesensors: Cl2,pH,redoxelectrodes Removetheprotectioncapandkeepinasafeplace.

2 Refitthesensors.

3 Turntheflowofsamplewateronagain.

4 Checkforleaks.

4�WT.050.425.00�.GE.IM.0�09


4.7 adaption

Onlyappliestofreechlorine.

� � � �

� � �

� ��

� � � �

� � � � � � � ��

� � � � � � � � � � � � � � � �

� � � � � � � � �

� � �

� �

� � � ��

� � � �

applicationAdaptionisusedfortheautomaticassessmentofthereactiontimesofthecontrolloop(loopdeadtimeTuandlooprisetimeTs)ortheresultingcontrolparametersXpandTn.

noTE:The control parameters determinedby the adaptionmust beconsideredasarecommendationforinitialcommissioning.ThecontrolparametersXpandTcanbemanuallyoptimisedtoensuremaximumcontrolquality.

requirements• Dosingpumpsettoautomatic• CalibratedCl2measuring(zeropointandDPDvalue)• Loopdeadtime<60min.• Looprisetime<480min(8h)formeasuringrange0-100%• Decompositiontime<480min(8h)ofthecurrentvalueto20%of

themeasuringrange• Correctmenusettingoftheendvalue,controldirection(director

inverse),actuator(e.g.positioner)positionerrunningtime(Ty)

Do not start Adaption:• Ifalargevolumeoffreshwaterisbeingadded• Ifthemeasuringcellhasnotbeenrun-in• During cleaning work• Duringfilterbackwashing• Whilethecirculationchanges

WT.050.425.00�.GE.IM.0�094�


starting adaption1 Startingatthebasicdisplay,pressFrepeatedlyuntilthe'ADAPTION'

menuisreached.Presstuntilthe'AdaptionCl2'menuisreached.

2 Press 3.'Start>adaption'isdisplayed.

3 Press3 again.

Eachadaptionphaseisthendisplayedwithastatusmessage:

Displaytext Explanation0:Init Initialisation1:Ym=0% Pumpoff2:X=20% Waituntilcurrentvalueis<20%ofthe

controlrange3:X=100% Pumpon4:Ym=100% Waituntilcontrolsignal=100%5:Tu! Initialisingdeadtimemeasurement6:Tu! Measuringtheloopdeadtime7:Tucheck Plausibilityenquirydeadtime8:InitTs Initialisingrisetimemeasurement9:Ts! Measuringtherisetimeuntil50%ofthe

controlrange10:Ts! Calculatingtheloopparametersandthe

controllersettings11:Ym=0% Pumpoff

Theadaptionmenucanbeexitedwhilsttheadaptionisrunning.Adaptionisdisplayedbyaflashingicon ontheleftofthemaindisplay.ThepHcontroller continues running during adaption. I

Theexecutiontimeofthestatusmessagesvaries.Itispossiblethatsomestatusmessagesareonlydisplayedbrieflyornotatalliftheexecutiontimeisveryshort.

noTE:Adaptioncantakeupto13hoursdependingonthecontrolloop.Theremustbeno interruptions in the control loopwhile adaption isrunning(e.g.filterbackwash,changestothecirculationspeedormajorfluctuationsintheuseofthepool).

Adaptioncanbeabortedatanytimebypressing3intheAdaptionmenu.Thepreviouslysetparametersremainunchanged.

49WT.050.425.00�.GE.IM.0�09


conclusion of adaption without errorsWhenthelooptime(deadtimeTuandrisetimeTs)havebeencompletedwithouterror,calculationofthecontrolparametersXpandTncommences.Thecalculatedparametersareenteredinthemenus.Whenadaptionhasfinished,theEzetrol® plus usesthenewlycalculatedcontrolparametersandcontinuesrunningintheselectedmode(e.g.automatic).

TomonitorthedeterminedlooptimestheyareenteredintotheTuandTsmenus.

If anyerrors in thecontrol loopdooccurduringadaption (e.g.filterbackwashorchangesinthecirculationspeed),thismayleadtoincorrectlooptimes,resultinginwrongcontrolparametersbeingdetermined.

noTE: Performing adaption does not affect the remaining controlparameters.

conclusion of adaption with errorsIf adaption is not successful, the errormessage 'ADAPTION?' isdisplayed.

Iferrorsoccurinthecontrolloopduringadaption(e.g.filterbackwashing,changesinthecirculationorwidelyfluctuatingnumberofvisitorstothepool)orifreactiontimesofthecontrollooparetoolong,adaptionisinterrupted.

Potential faultsInitial value not reached—Whenadaptionhasstartedandthedosingsystemhasclosedorthedosingpumphasswitchedoff,themeasuringamplifierwaitsuntiltheactualvaluehasdroppedbelowtheinitialvalue(0.2xthemeasurementrangevalue)thisdelayisindicatedby2:X=20%beingdisplayedandmustnotexceed8hours.

loop dead time too long—The value determined by the timemeasurementbetweenstartingupdosing,switchingonthedosingpumpsandtheriseoftheactualvaluemayonlytakeamaximumof1hour.Thismeasuredtimeisdisplayedby6:Tu!

loop rise time too long —Thetimeisdeterminedbyameasurementwhichthecontrollooprequiresat100%dosingrateofthedosingsystemorthedosingpump,toincreasetheactualvalueto50%ofthemeasuringrange.Thismeasurementisindicatedby9:Ts!andmaytakeamaximumof4hours.

Ifanyoftheerrorconditionsdescribedaboveoccur,adaptionisinterrupted.Themeasuringamplifierdisplaysafaultmessage.TheoldparametersXpandTnarenotchanged.

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DeterminingthecontrolparameterswithknownTuandTsvalues—IfthelooptimeTuandTsarealreadyknownoriftheycannotbedeterminedautomaticallyduetospecificsystemconditions,thelooptimescanbeenteredintotheTuandTsmenus.WhenTuorTsaresaved,thecontrolparametersXpandTnarealsocalculatedandenteredinthemenus.

4.8 settings overview

Display factory setting CommissioningDISPLAY-MENU

Cl2setpoint 0.35mg/lsetpointpH 7.00pH

Mode ManualMenu Extended

caliBrationoffsetpH 0.00pH

Man.temp.comp. 20°CPARAMETERCl2

Actuator Dosingpump2PXp 10%Tn 20minTy 90sec.

max.pulse/min 120Tp 60sec

Hysteresis 0.05mg/lmin.ONtime 1min

PARAMETERpHActuator Dosingpump3P

Xp 10%Tn 20minTy (90sec)

max.pulse/min 120Tp 60sec

Hysteresis 0.05pHControldirection pH-

LimitvaluesCl2max 0.80mg/lCl2min 0.10mg/lpHmax 7.80pHpHmin 6.80pH

5�WT.050.425.00�.GE.IM.0�09


Display factory setting CommissioningORPmax 900mVORPmin 600mV

ALARMRELAYS1Relayassign. --

Relayfunction N.O.unlatchedDelay 0min

ALARMRELAY2Relayassign --

Relayfunction N.O.unlatchedDelay 0min

setupsamp.waterdelay 0.0min

Feeddelay 3.0minOverfeeddelay 0.1h

Holdfunc. OffLanguage English

Standbyfunction OffDisplayselection

[]Cl2pH

redoxTemperature°FTemperature°C

Interface AusBusaddr.Cl2 00pHbusaddr. 01

Busaddr.redox 02Codedef 000

SETUPmAmAoutput 0...20mA

mA1assignment Cl2mA2assignment pHmA3assignment redox

Cl2mArange 0-mg/ladaption

Tu 60sTs 10.0min

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5 operation5.1 DisplayandOperatorControls

Thedisplayunitindicatesimportantdata.TheEzetrol® plus is operated usingsixkeys.Theexactdepictionoftheindividualparametersonthedisplayisdescribedinthefollowingsections.

Exampleofbasicdisplay

A B C D

F EA MeasuredvalueofchlorineB Samplewatertemperatureordigitalinput*)C Adaption runningD ManualorautomaticmodeE Measured redox valueF Measured pH value

Indicators

H ManualmodeA Automaticmode[ ] Option-notselected[3] Option-selected

sTanDByStandbymode,seeSection5.1.3OperatingModes.

*)Whenadigitalinputswitches,thedigitalinputisdisplayedinsteadofthetemperature.

• DI Digitalinput1: flowswitch• DII DigitalinputII: circulationpumpinterlock• DIII DigitalinputIII: emptydosingtankalarm

5�WT.050.425.00�.GE.IM.0�09


Keys

operating panel

Up• Move up one level• Displaythepreviousoption• Increase value

Down• Move down one level• Displaythenextoption• Decrease value

star• Deletealarmmessage,resetalarmrelay• Acknowledgeerrormessage

Function

• Displaynextmenu

Escape• Cancelinputwithoutsavingnewvalue• Moveuponemenulevel• Displayacknowledgederrormessageagain

Enter• Changetoeditmode• Savechanges

operating indicatorsTheoperatingstateisindicatedby9LEDs.ThemeaningoftheseindicatorsismarkedonthelabellingstriptotherightoftheLEDs.WhentheLEDisilluminated:

WT.050.425.00�.GE.IM.0�0954


Ezetrol® plusisswitchedon(POWER)

Chlorinedosingincreased/chlorinedosingon

Chlorinedosingreduced

DosingofpHcorrectionmediumincreased/alkalidosinon

DosingofpHcorrectionmediumdecreased/aciddosingon

Magneticswitch1oralarmcontact1

Magneticswitch2oralarmcontact2

Faultmessage/Fault

Interfacemode

5.1.1 Codenumber

Thesystemshouldbeprotectedagainstunauthorisedaccessorunintentionalincorrectoperationbymeansofafreelyselectablecodenumber.Inthiscase,thepresetvaluescanbedisplayed,buttheycannotbealtered.Ifthisisneverthelessattempted 'Code???' isdisplayed,followedbytheprevious setting.

WhenswitchingonafteraRESEToriftheunithasbeeninoperationforonehourwithoutakeybeingpressed,thecodenumberisresettozerointhemainmenuandaccessisthusdenied.

Thevaluesintheprotectedmenuscanonlybealteredafterthecorrectcodenumberhasbeenenteredinthemainmenuthatidentifiesyouasanauthorisedoperator.

Asanauthorisedoperator,i.e.afterenteringthecorrectcodenumber,youcanchangethecodenumberifsodesired.Todothis,enteranewcodenumberunder'CODEdef'inthe'SETUP'menu.Ifyouthenwishtoblocktheunitagainstaccessbyunauthorisedoperators,setthecodetoadifferentnumberinthemainmenuotherwisethecodenumberisblockedafter1hourifnokeyispressed.

55WT.050.425.00�.GE.IM.0�09


Ifyouwishtoallowgeneralaccess,enter'000'inthe'CODEdef'.Thismeansthatallsettingscanbealteredatanytimewithouthavingtoenteracode.InthiscasetheCODEqueryisnotdisplayedinthemainmenu.However,adifferentCODEnumbercanbeenteredunderCODEdefatanytimetodenyaccesstoalloperatorswhodonotknowthenewnumber.

ThedefaultsettingondeliveryisCODEdef=0,whichmeansthatthesettings are not protected.

InformationonhowtoproceedifyouhaveforgottenthecodenumberisgivenunderRESET(menupath11:DIAGNOSIS).

5.1.2 Generalnotesonoperation

• Startingfromthebasicdisplay,theothermenusareaccessedbypressingthef key.

• Sub-menusarethenaccessedwiththes and t keys.

• Fromanysub-menupresstheESCkeyonceortwicetoexittothemainmenuandpressitagaintoexittothebasicdisplay.

• Selectthemenuitemtobechanged.

• Pressthe3key,anarrowappearsinfrontofthevaluetobeset.

• Usethearrowkeystoincreaseordecreasethevalueortoskiptothenextoption.

• Storethecorrectvaluebypressing3.

• Ifyouhavechangedavaluewiththes and tbuthavenotyetstoreditwith3,youcanrestoretheoriginalsettingbypressingESC.Usethearrowkeystoselectthenextsub-menu.

WT.050.425.00�.GE.IM.0�095�


Duringoperationobservethefollowingpoints:

• Checkyourentriesandmodificationsbeforeexitingthemenu.

• Onlypressthekeyswithyourfingers,neverwithhardorpointedobjectssuchaspencilsetc.Thiscoulddamagethesealedkeypad.

5.1.3 Menustructure

TheEzetrol®plushas11differentmenus.

• Displaymenu• Calibration• Cl2parameter• pHparameter• Limitvalues• Alarmrelay1• Alarmrelay2• SETUP• SETUPmA• Adaption• Diagnosis

5�WT.050.425.00�.GE.IM.0�09


MenuView

Dia

gnos

is

cell

Cl2

pHe

lect

rode

Tem

pera

ture

Rel

ay

Yout

(Cl2

/pH

)

RS

485

Sof

twar

ere

leas

e

*RE

SE

T*

Aut

oTu

ne

Tu Ts

Aut

oTu

ne

Set

upm

A

mA

outp

ut

mA

outp

ut

mA

outp

ut

mA

outp

ut

Set

up

sam

p.w

ater

del

ay

feed

del

ay

over

feed

del

ay

Hol

dfu

nct

Tim

e

Dat

e

Lang

uage

Sta

ndby

func

tion

Dis

play

sel

ect

Inte

rface

code

defi

nitio

n.

Ala

rmR

elay

1/2

rela

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sign

.

rela

yfu

nctio

n

alar

md

elay

Ala

rm Cl2

max

Cl2

min

pHm

ax

pHm

in

redo

x.m

ax

redo

x.m

in

tem

p.m

ax

tem

p.m

in

pHp

aram

eter

cont

rolo

utpu

t

prop

ort.

fact

or

Hys

tere

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duty

cyc

le

Cl2

par

amet

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cont

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utpu

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prop

ort.

fact

or

inte

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me

duty

cyc

le

zero

Cl2

Cal

ibra

tion

DP

DC

l2

pHc

alib

ratio

n

calib

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p.

man

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p.

tem

p.

pHo

ffset

cell

Cl2

pHe

lect

rode

tem

pera

ture

0.00

mg/

l20

°C

7.00

pH

800

mV

actu

ator

Cl2

Set

poin

tCl2

actu

ator

pH

pHs

etpo

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e

Mod

e

Men

u

Cod

e

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Menupath1DisplayMenu

DisplayValuerange(defaultsinbold)

description

0.00mg/l20°C7.00pH800mV

Measuredvalues,unitsofmeasurement(basicdisplay)Displayofallmeasuredvalues(chlorine,pH,redox,tempera-ture),manual/automatic,digitalinputsandadaption.

actuatorCl2 OPEN-off-SHUT

oroff-ON

ManualadjustmentofpositionerorCl2dosingpump(notin'AUTO'mode)(isnotdisplayedifchlorinemeasurementisdeactivatedinSETUP).

setpointCl2 0.00mg/l3.00mg/l

(1.50mg/l)

Cl2concentrationsetpointcanonlybesetwithintheselectedmeasuringrange(isnotdisplayedifchlorinemeasurementisdeactivatedinSETUP).

actuatorpH OPEN-off-SHUTor

pH--off-pH+

ManualadjustmentofpositionerorpHdosingpump(notin'AUTO'mode)(isnotdisplayedifpHmeasurementisdeactivatedinSETUP).

pHsetpoint 4.00pH9.00pH

(7.20pH)

pHsetpointcanonlybesetwithintheselectedmeasuringrange(isnotdisplayedifpHmeasurementisdeactivatedinSETUP).

feeddelay 05min Displayscurrentfeeddelay(onlyinAUTOmode)

man.runtime 0.1h PeriodthepumprunsforwhentheOnbuttonispressed.(onlyinMANUALmode)

Mode AutomaticManual

ModeTheselectedmodeisalsoshowninthebasicdisplaybymeansofthe'Auto'or'Manual'symbols.

Menu Conciseextended

MenulengthSelectionofthemenulength-Concisemenu:Displayandcalibrationmenuonly-Extendedmenu:Allmenusaredisplayed.

code 000999

codeEntryofcodenumberThesettingscanonlybechangedifthenumberenteredhereagreeswiththenumberintheCodedef.menu.Otherwise,theerrormessage'code???'appears.Themenudoesnotappearifthenumber'000'hasbeenenteredintheCodedef.menu.Ifthisisthecaseallofthesettingscanbechanged.

59WT.050.425.00�.GE.IM.0�09


MenuPath2Calibration


description

caliBration CalibrationmenuThismenupathisusedforallcalibrationsettings.Thecontrolleroutputisheldconstantduringcalibration,themAoutputisonlyheldifthe'HOLD'functionison.

DPDCl2 1.00mg/l Cl2DPDcalibrationPressthe3key.EnterthevaluemeasuredbyDPD1withthesandtkeys.Pressthe3keytocalibratethedisplaytothisDPD1value

calibrationpH 7.5pH pHcalibrationPressthe3key.CarryoutaPhenolRedpHtest.Setthevalueestablishedbypressingsortkeys.Pressthe3keytocalibratethedisplaytothisvalue.

calibratemV mV RedoxcalibrationPressthe3key.Inserttheredoxprobeinaknownbuffersolution.Setthevalueestablishedbypressingsortkeys.Pressthe3keytocalibratethedisplaytothisvalue.

calibrationtemp. 20.0°C-5.0°C50.0°C

CalibrationofthesamplewatertemperatureThemeasuredtemperaturecanbeadjustedbymax.5°Cbypressingsandt.

Man.temp.comp. 28.0°C0°C

50°C

ManualtemperaturecompensationThisisusedtocompensatethemeasuredchlorineandpHvaluesifthetemperaturemeasurementisswitchedofforfaulty.

Cl2cell

+3.5µA5µA/mg/l(1µA)

03.11.0813:25

InformationoftheCl2cellPress3repeatedlytodisplaythefollowinginformation•Currentmeasuringcellcurrent•Calibratedmeasuringcellparameters(gradientandzerocurrent)•Dateandtimecalibrationwaslastperformed

pHelectrode

+59mV59mV/pH(+5mV)

03.11.0813:48

InformationofthepHelectrodePress3repeatedlytodisplaythefollowinginformation•Currentmeasuringcellvoltage•Calibratedmeasuringcellparameters(gradientandisothermalintersectionpoint)•Dateandtimecalibrationwaslastperformed

mVelectrode

+789mV(+5mV)

03.11.0813:48

InformationoftheredoxelectrodePress3repeatedlytodisplaythefollowinginformation•Currentmeasuringcellvoltage•Calibratedmeasuringcellparameters(electrodeoffset)•Dateandtimecalibrationwaslastperformed

Temperature

21.3°C(68.6°F)(+2.7°C)(+3.8°F)03.11.0813:48

InformationoftheredoxelectrodePress3repeatedlytodisplaythefollowinginformation•Measureduncalibratedtemperatureinselectedunits•Calibrationoffsetintheselectedunits•Dateandtimecalibrationwaslastperformed

WT.050.425.00�.GE.IM.0�09�0


MenuPath3Cl2PARAMETER


description

PARAMETERCl2 Cl2controllermenuThismenuisusedforallchlorinecontrollersettings

controloutputPositionermot.

Dosingpump2PSolenoidpump2P

Dosingcontact

ControloutputforCl2dosingPositioner:forgasfeeders,adjustmentofpumpstroke.Dosingpump:PulselengthcontrolofdosingpumpPulsepump:PulsefrequencycontrolofsolenoiddosingpumpDosingcontact:forOSECA

proport. factor 1%1000%(10%)

ProportionalfactorXp

integr.act.time 0.0min(0.1min)100.0min(20.0min)

IntegraltimeTnEntering0.0mincausestheIparttoswitchoffsothatthecontrollerthenoperatespurelyasaPcontroller.Thelowerpositionerlimitmustneverbelowerthan0.1min.

dutycycle 10-180sec.(60sec)

Adjustmentoftheoperatingcycle(Tp)Thisadjustmentisonlypossiblewithnormalmotorpumps

Max.pulses/min

100120

MaximumpulsesperminuteAccordingtothedesignofthepHcorrectionsolenoidpump.NOTE:Onlyifpulse.pumpisselected.

Hysteresis 0.01mg/l0.50mg/l0.05mg/l

HysteresissettingThissettingisusedtospecifythedeadtimebetweenswitchingthedosingcontactonandoff(onlyapplicabeifusingthedosingcontact).

min.ONtime 1min120min

SettingoftheminimumdutycycleThissettingdeterminestheminimudutycycleofthedosingcontact(onlyifusingadosingcontact).

ty 10sec180sec(90sec)

RunningtimeofthepositionerTherunningtimeofthepositionermustbeenteredhereasavaluebetween0%and100%(onlyifusingapositioner).

Max.pulse/min. 100120

MaximumnumberofpulsesperminuteInaccordancewiththeratingofthedosingpump(onlywhensettingthepulsefrequency).

zeroCl2 0.00mg/l Cl2zerocalibrationPress3tozerothedisplay(max.±5µApermitted)

��WT.050.425.00�.GE.IM.0�09


MenuPath4pHPARAMETER


description

pHPARAMETER pHcontrollermenuThismenuisusedforallpHcontrollersettings

actuatorDosingpump2PDosingpump3P

Positionermot.Pulsepump2PPulsepump3P

ActuatorforpHdosingDosingpump:PulselengthcontrolofdosingpumpPulsepump:PulsefrequencycontrolofsolenoiddosingpumpPositioner:forCO2dosing,2P:foradosingandpulsepump(controldirectioncanbeswitched3P:fortwodosingorpulsepumps

proport. factor 1%1000%(10%)

ProportionalfactorXp

tn 0.1min100.0min(20.0min)

IntegrationtimeTn(onlyforpositioners)

Hysteresis 0.01mg/l0.50mg/l0.05mg/l

Neutralzone(onlyappliestodosingpumpandsolenoidpump)

tp 10sec180sec60 sec

PulselengthInaccordancewiththeratingofthedosingpump(onlywhenusingadosingpump).

ty 10sec180sec(90sec)

RunningtimeofthepositionerTherunningtimeofthepositionermustbeenteredhereasavaluebetween0%and100%(onlyifusingapositioner).

Max.pulse/min. 100120

MaximumnumberofpulsesperminuteInaccordancewiththeratingofthedosingpump(onlywhenusingapulsepump).

Controldirection pH+pH-

Controldirectionfor2pointactuatorsandpositionersThissetsthepolarityofthecontrolleroutputfor2pointdosingorpulsepumporapositioner

MenuPath5Cl2(2)PARAMETER

Notrequired

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MenuPath6LIMITVALUES


description

LIMITVALUES AlarmsmenuSettingofthelimitvaluesofallmeasurements

Cl2max Measuringrange0.80mg/l

MaxCl2limitvalue

Cl2min Measuringrange0.10mg/l

MinCl2limitvalue

pHmax Measuringrange7.8pH

MaxlimitvalueofpH

pHmin Measuringrange6.8pH

MaxlimitvalueofpH

Redoxmax. Measuringrange900mV

Maxlimitvalueofredox

Redoxmin. Measuringrange600mV

Maxlimitvalueofredox

Temp.max. Measuringrange35°C

Maxlimitvalueoftemperature

Tempmin. Measuringrange20°C

Maxlimitvalueoftemperature

noTE: Thismenuisonlyusedtodefinetheswitchingthresholdvalues.WhetherornotthefaultsignallingrelayisactivatedisspecifiedintheMenuPaths7and8under'Alarmrelay1and11'.

MenuPath7ALARMRELAY1


description

ALARMRELAY1 Alarmrelay1menuThismenupathisusedtospecifylimitvaluesandexternalsignalsthatactivatetheswitchingofrelay1.Italsosetsthemodeofoperationoftherelayandtheswitchingdelaytimeoftherelay

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description

Relayassign. Cl2maxCl2minpHmaxpHmin

redoxmaxredoxmin

DI1DI2DI3

Alarm1relayassignmentThismenupathisusedtospecifylimitvaluesandexternalsignalsthatactivatetheswitchingofrelay1.Italsosetsthemodeofoperationoftherelayandtheswitchingdelaytimeoftherelay

Relayfunction N.O.unlatchedN.C.unlatched

N.O.latchedresN.C.latchedresN.O.latchedackN.C.latchedack

Functionofalarmrelay1

Delay 0min600min0min

DelayuntiltherelayswitchesTheindicatorilluminatesimmediatelyafterthealarmhasbeensent;howevertherelayswitchesattheendofthedelaytime

MenuPath8ALARMRELAY2

AsALARMRELAY1exceptfor

relay function PAC TurnoffonHighandLowpH,noflowandexternalstop.

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MenuPath9SETUPDisplay Valuerange

(defaultsinbold)description

setup SETUPmenu(generalsettings,interface)samplewater

delay0.0min

10.0min0.0min

Delaytimeforsamplewatermonitoring(DI1)Afterfailureofthesamplewater,thecontroloutputsremainunchangedforthislenghtoftime.Thenthedosingpumpstopsandthepositionercloses.(settingto0.0hdeactivatesthisfunction).

feed.delay 0.0min99.0min3.0min

FeeddelayController-switchondelayforH/Aswitching,samplewaterfailure,circulationshut-offortankempty-message.(settingto0.0hdeactivatesthisfunction)

overfeeddelay 0.1h24hn0.5h

MaximumdosingtimeIf a controller maintains a flow rate of 100% longer than this time, thecontrollersaredeactivated.(0.0hdeactivatesthisfunction).

Holdfunction offOn

HoldfunctionWhenactivated,thevalue(mAoutput,limitvalue,etc.)remainsunchangedduringcalibration.

time 11:18 Settingtheinternalreal-timeclockdate 03.11.08 Settingtheinternalreal-timeclock

language German,EnglishFrench,ItalianDutch,Czech

Polish,Hungarian

Menulanguage

standby function onOff

standby functionThemainmenudisappears('Standby'display)anderrormessagesaresuppressedwhensetto'Circulationoff'(DII).Acknowledgebypressinganykeyinthemainmenu.

Displayselect Cl2pH

redoxTemperature°FTemperature°C

SelectionofthedisplayedmeasuredvaluesOptionsdifferdependingontheversionoftheunit.

interface offPrinter

RS485(1)

Selectionoftheoperatingmodeoftheinterface

Busaddr.Cl2 0..3100

BusAddressforbusmodefortheCl2values

pHbusaddr. 0...3101

BusAddressforbusmodeforthepHvalues

Bus addr. redox 0...3102

BusAddressforbusmodefortheredoxvalues

Codedefinition 000999

SpecificationoftheusercodenumberIfsetto'000',allsettingscanbechanged.Withanyothersetting,theusercanonlymakechangesifthiscodehasalsobeenteredinthe'Code'menuinthedisplaymenu.Aftertheunithasbeenrunningforonehourwithoutakeybeingpressed,thevalueinthe'Code'menurevertsto'000'andaccessisdeniedonceagain.AfullsystemRESETalsoresetsthevalueinthe'Codedef.'menuto'000'.

noTE:Inabussystem,noaddresscanbeassignedtwice.

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MenuPath10SETUPmA


description

setup SETUPmenu(generalsettings,interface)mAoutput 0...20mA

4...20mAoff

mAsignaloutput

mA1assignment Cl2pH

Temperature

AssignmentofmAoutput1

mA2assignment Cl2pH

Temperature


mA3assignment Cl2pH

Temperature


Cl2mArange 0-10mg/l0-1mg/l0-2mg/l0-3mg/l0-5mg/l

MeasuringrangeofmAoutputforCl2AdjustmentofthemAoutputtothecontinuouslinerecorder

MenuPath11AUTOTUNEfortheCl2controller


description

auto tune AutomatictuningInthismenupathyoucancalculatetheparametersXpandTnfromthevaluesenteredmanuallyforthecontrolcircuitsloopdeadtimeTuandtherisetimeTs,oryoucanstartaprogrammetodeterminethesevaluesautomatically(see'Autotune'menubelow).TheparametersforpHcontrolremainunchanged.

tu 60 sec3600sec

(equals60min)

LoopdeadtimeTuAftereachalterationofTu(storedwithE),theparametersXpandTnarerecalculated.ThecurrentvalueofthelooprisetimeTsisusedforthis.Afterautotuningiscomplete,thevaluedeterminedforthelooprisetimeTuisdisplayed

ts 10.0min480.0min

(equals8h)

LooprisetimeTsEverytimeTsischanged(storedwithE),theparametersXpandTnarerecalculatedonthebasisofthecurrentvalueoftheloopdeadtimeTu.AfterautotuningiscompletethevaluedeterminedforthelooprisetimeTsisdisplayed.

auto tune Start StartingautomatictuningMenuforstartingautomatictuning.Onceithasstarted,autotuningrunstocompletionoritiscancelled.Onceautotunehasfinished the parameters Xp and Tn are recalculated. After auto tune, the measuring amplifier continues to run in the mode that waspreviouslyselected(e.g.automatic).Whileautotuningisrunning,thestatusmessagesaredisplayedinthismenu.Toabortautotuning,press3.

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MenuPath12DIAGNOSISmenu


description

diagnosis AutomaticadaptionThismenudisplaysinternalmeasurementsandoperatingstates.

Cl2cell

+3.5µA5µA/mg(1µA)

03.11.0813:41

InformationontheCl2cellPress3repeatedlytodisplaythefollowinginformation:-Currentmeasuringcellcurrent-Calibratedmeasuringcellparameters(gradientandzerocurrent)-Dateandtimelastcalibrationwasperformed

pHelectrode

+59mV59mV/pH(+5mV)

03.11.0813:41

InformationonthepHelectrodePress3repeatedlytodisplaythefollowinginformation:-Currentmeasuringcellvoltage-Calibratedmeasuringcellparameters(gradientandisothermalintersectionpoint)-Dateandtimelastcalibrationwasperformed

mVelectrode

+789mV(+5mV)

03.11.0813:41

InformationontheredoxelectrodePress3repeatedlytodisplaythefollowinginformation:-Currentmeasuringcellvoltage-Calibratedmeasuringcellparameters(electrodeoffset)-Dateandtimelastcalibrationwasperformed

Temperature

21.3°C(68.8°F)(+2.7°C)(+3.8°F)

03.11.0813:41

InformationonthetemperaturemeasurementPress3repeatedlytodisplaythefollowinginformation:-Measureduncalibratedtemperatureinselectedunits-Calibrateoffsetintheselectedunits-Dateandtimecalibrationwaslastperformed

REL:123456ST:100010

RelaystatusandrelaytestmodeOncetherelayhasbeenswitched,"1"isdisplayedAssignmentoftherelays(seewiringdiagrams):1:Cl2relayK12:Cl2relayK23:IncreasepHrelayK34:DecreasepHrelayK45:Alarm1relayK56:Alarm2relayK6Pres3toswitchtherelaytotestmode.Youcanswitchbetweentheindividualrelaysbypressingthearrowkeysandswitcheachrelaybypressing3.Toexittherelaytestmodeandreturntotheoriginalrelaystatuspressthekkey

CAUTION:RiskofoverdosingchemicalsoralarmmessagesYout(Cl2/pH) 0%-0% DosingcapacityYoutoftheintegratedcontroller

Outputvaluefromtheinternalcontrollerin%(Cl2/pH)rs485 CommunicationviatheRS485interface

Ifamessageistransmittedviatheinterface,requestcommandsaredisplayedwiththemessage"RxD"andrepliesfromthemodulewiththemessage"TxD"

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description

Softwarerelease V:3.0123OCT.2008

EAE1069FRG49

Displayofthesoftwaredataoftheunit(importantincaseofqueries)

*reset* Restartoftheunit(RESET)Press3torestarttheunit

5.1.4 Operatingmodes

AutomaticSymbol AutomaticcontrolofthedosingunitsforchlorineandpHaccordingtothemeasuredvaluesandspecifiedsetpointvalues.

Manual Symbol Dosing is not automatically controlled in theMANUALmode.The valuesmust be continuouslymonitored.TheMANUALmodeisused:

• Intheeventofanypossiblesystemfaults• Duringmaintenance/cleaningworkorwhilecheckingthesystem

TheMANUALmodeleadto:

• Pumpsoff• caUTIon:RiskofoverchlorinationoroverdosingofpHcorrection

media.• Ifnecessaryadjustitspositionusingthemenu"actuatorCl2"or

"actuatorpH".

STOPDisplay:Dl,Dll,DlllSTOPmodeisautomaticallyactivated:

• Intheeventofadisturbanceinthesamplewaterflowrate(Dl)• Whenastopsignalissentfromfromoneoftheotherdigitalinputs

DII or DllI• When theDII contact drops out the displaywill not show the

measured values or any error messages, simply displayingSTANDBYonthescreen.

The following messages are also displayed:

• Dl * sample water?• Dll * ext. release?• Dlll * carboy?

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STOP results in:

• Pumps off If the conditions that cause the unit to stop no longer apply, the

system automatically switches over to automatic (possibly delayed by a dosing delay).

flashes Sample water or dosing delay currently running

auto tune Automatictuningmodeisactivatedfromthe"autotune"menu(seeSection4.7).Theautotunestepsaredisplayedduringactivation.

stanDBy When the standby function is activated, the measured values and error messages are not displayed if there is an open contact on DlI (circulation stop).

This function is primarily used in private pools where the circulation system does not operate the whole day. During stoppages, these values and the associated error messages are not displayed because this might confuse the operator.

Preset alarms are also active in the standby mode. The stop function (controller stop) continues to operate

5.1.5 SwitchingtheEzetrolplus on and off

Theoperatorwillonlybeabletoswitchthesystemonifthemeasuringancontrolsystemhasbeenproperlyinstalledandcommissionedbyspecialists.Theunitusuallyoperatesintheautomaticmode.Thedosingofchemicalsis controlled according to:

• Thesetpointandmeasuredvalues and• thesignalsonthedigitalinputs(samplewaterSTOP,controller

STOPanddosingtankempty).

Ingeneral,alltheoperatorhastodois:

• Exchangethecontainersholdingchemicals.• Checkandcalibratethemeasuredvalues.• Ifnecessary,remedysimplefaults.

Turnonautomaticoperation—startingfromthebasicdisplay:

1 Pressthetkeyuntilthe"Mode"menuappears.

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2 Press 3.

3 Selectoperatingmode"AUTO"usingthet key.

4 Press3.Theautomaticmodeisswitchedon.Thedosingsystemswitcheson(providedthatthereisanexternalenable).

5 PressESCtoreturntothebasicdisplay.

5.1.5 Toswitchtheentiresystemoff

Temporaryshutdown 1 Switchofftheexternalmainswitch.

2 Ifnecessary,shutoffthesamplewatersupplylineandreturnline.

for extended periods

WarnInG: RiskofuncontrolleddosingofchlorineorpH-correctionmedium.Shutdowndosingsystem,closepositioner.

WarnInG: Iftheinstallationsiteoftheflowblockassemblyisnotfrostfree,thesystemmustbeshutdowninduetime.

1 Switchoffthepowersupply.

2 Drainthesamplewatersupplylineanddrainline.3 Emptythecellbody.

4 Dismantlethefilterhousingandthecheckvalvehousing.

5 Whentheremainingwaterhasdrainedfromtheflowcontrolvalve,refitthefilterhousingandthecheckvalvehousing.

6 Removethesensorsfromthecellbodycoveranddisconnectfromthecable.

7 PutsomeKClsolutionintheprotectioncapsoftheCl2,pHandredoxelectrodesandfitontotheelectrodes.

8 Storethesensorsinafrostfreeplace.

noTE: TheKClreservoir(partNo.AAC4084)canbeusedinsteadoftheprotectioncap.

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A SensorB Sealing capC O-ringD ReservoirE Stand

WarnInG: Donotlettheelectrodesdryout(seeinstructionsfortheindividualelectrodes).

Re-commissioning

1 Preparethesensors: Cl2,pH,redoxelectrodes:Removetheprotectioncapandkeepin

a safe place.

2 Refitthesensors.RefertoSection4.4Commissioning.

5.2 Calibration5.2.1 Chlorinecalibration

1 Starting from the basic display, press thef key to access the"CALIBRATION"menu.

2 Thelowerclipmustbefittedintothetopmountifthesuppliedbeakeristobeused.

The calibration intervals are given in (for recommendations refer toSection6.1).

WarnInG: Theelectrodemembraneson thesensorsareextremelysensitive.Donottouch,soilordamagethem.

AlwaysfollowthesafetydatasheetsfortheelectrolytewhichcanberequestedfromSiemenswatertechnologies.

noTE: TopreventthemAoutputsfromchangingduringcalibration,setthe"Hold"functionintheSETUPmenuto"On".Thecontrolleroutputsremainconstantwhileworkisbeingcarriedoutinthecalibrationmenu.

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Calibrationsetup(example)forsensorsthatarecalibratedoutsidethecellbody.

A BallvalvesonsamplewaterinletandoutletB DrainC Lower clipD BeakerE SensorF Topclipwithelectrodemount

Chlorinecalibrationcanonlybecarriedoutifchlorinemeasurementisselectedunder"DisplaySelect"intheSETUPmenu.

Zero point calibration

1 Press t in the 'Cl2Parameter'menuuntilyoureachthemenuitem"ZeroCl2".

2 Closetheballvalveonthesamplewaterinlet.

3 Waituntilthedisplayedchlorinevaluenolongerchanges.

4 Pressthe3keytwicetosetthedisplayto"0.00".

5 Opentheballvalveagain.

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noTE:Makesurethatthechlorinesensorisfirmlyscrewedinotherwisethemeasurementaccuracywillbeaffected.

Whenthesamplewatersupplyhasbeenshutoff,thedisplayfirstdropsrapidlyand,afterapproximatelyoneminute,slowlyapproacheszero.Duringcommissioningitisessentialtowait3minutes,evenifthedisplayshows"0.00"orflashesafterafewseconds.Owingtotheamperometricmeasuringprinciplewithapotentiometric3-electrodemeasuringsystem,azeropointcheckshouldonlybenecessaryaftercleaningthesensor.

Ifakeyisnotpressedwithin5minutes,theEzetrolplus returnstothebasicdisplay.

calibration of measured values

1 Waitapproximately2minutesafteropeningtheballvalve.

2 Openthedrainvalveapproximatelyoneturnandtakeasampleofthewater.

3 Presstinthe'CALIBRATION'menuuntil'DPDCl2'isdisplayed.Pressthe3keytoopenthemenu.CarryoutamanualDPDNo.1FreeChlorinetest.

4 Pressthet and skeysuntilthevaluedisplayedagreeswiththedeterminedvalue.

5 Press3tostorethisvalue.Themeasuringcellisnowcalibrated.6 PresstheEsckeytwicetoreturntothebasicdisplayorcontinue

tothepHcalibrationmenu.

5.2.2 pHcalibration

pHcalibrationcanonlybecarriedoutifpHmeasurementisselectedunder"Displayselect"intheSETUPmenu.

noTE:ForsystemswithapressurisedsamplewaterreturnlineshutofftheinletandoutletlinesbeforecalibratingthepHandredoxelectrodes.The remainingpressure is releasedwhen theelectrode isunscrewed.Aftercalibrationhasbeencompletedand theelectrode refitted,opentheinletandoutletlines.

(The Ezetrol does not require pH buffers to calibrate the pH channel).

From the normal operating display (with the actual chlorine and pH readings on the screen).

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1 Press the f key until the text on the screen reads 'CALIBRATION'.

2 Press the t key until the display reads ‘calibration pH’. Carry out a manual Phenol Red pH test.

3 Press the 3 key to access the pH calibration parameter.

4 Press the s or t keys until the desired pH value is displayed.

5 Press the 3 key to enter and save the new value.

6 Press the Esc key twice to return to the normal operating display, with the new calibrated value displayed.

notE: The controller is only accurate as the information input. Ensure that the Phenol Red pH test is a correct before entering any values into the Ezetrol.

5.2.3 Redoxcalibration(option)

Redoxcalibrationcanonlybecarriedoutifredoxmeasurementisselectedunder"Displayselect"intheSETUPmenu.

notE: For systems with a pressurised sample water return line shut off the inlet and outlet lines before calibrating the pH and redox electrodes. The remaining pressure is released when the electrode is unscrewed. After calibration has been completed and the electrode refitted, open the inlet and outlet lines.

The redox display is for monitoring only and is not included on a standard Ezetrol plus installation.

From normal operating display (with the actual chlorine and pH readings on the screen).

1 Press the f key until the text on the screen reads 'calIBratIon'.

2 Press the t key until the display reads ‘calibration mV’. Insert the mV in a known redox buffer solution.

3 Press the 3 key to access the redox calibration parameter.

4 Press the s or t keys until the desired redox value is displayed.

5 Press the 3 key to enter and save the new value.

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6 Press the Esc key twice to return to the normal operating display, with the new calibrated value displayed.

noTE: Redoxcombinationelectrodeshavelongrunningintimes.Afterabuffercalibrationitmaythereforetakeseveralhoursuntilthemeasuredvaluehasstabilised.

5.2.4 Temperaturecalibration

1 Open the drain valve approximately one turn and take a sample of the water.

3 Press t in the 'CALIBRATION' menu until 'calibration temp' is displayed. Press the 3 key to open the menu. Using a thermometer measure the temperature of the water.

4 Press the t and s keys until the value displayed agrees with the determined value.

5 Press 3 to store this value. The measuring cell is now calibrated.

6 Press the Esc key twice to return to the basic display or continue to the pH calibration menu.

5.3 Overfeedfailsafealarm

The Ezetrol®plus is programmed to feed chemicals, when called for, only for a limited preset period. This protection minimises any further complications in the event of a blocked injector, empty day tank, split hose, failed flow-switch or failed probe. An Overfeed Failsafe condition is indicated by ‘overfeed’ being shown in the alphanumeric display. Before accepting and cancelling the alarm, determine the reason for the ‘overfeed’, rectify the fault and only then press the k to restore normal dosing.

5.4 ErrorsandRemedies

Error messages — Thefollowingtableshowsandexplainsallpossiblefaultsanderrormessagesthatmaybedisplayed.Ifseveralerrorsoccuratthesametime,thecorrespondingmessagesappearalternatelyinsuccession.Whentheerrorhasbeenremedied,theerrormessageisautomaticallydeleted.Theerrormessagesarenotdisplayedinthestandbymode.

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error cause RemedyInsufficient flow rate ofsamplewater

Drainobstructed,backpressuretoohigh CheckdrainandreturnlineDirtinthecell CleanmeasuringcellAirbubbles Checkthepipelines

Strainerinsamplewaterinletclogged CleanInletvalveclosed Open

Airbubbles O-ringsleaking ReplaceO-ringsDefectivescrewedconnections Check,retightenorreplace,as

appropriateCl2sensorcurrenttoolow

Dirtyelectrodes Cleanelectrodes,replenishorreplacecellgrit

Chlorinesensorwornout Servicelifeapprox.1to2yearsCl2zeropointorfinal value cannot beset

Samplewaternotshutoff,shutoffleakingvalve

Check

Currentfrommeasuringcelltoolow Betweenunchlorinatedwaterandwaterchlorinatedwith1mg/lchlorinetheremustbeaminimumcurrentdifferenceof>1µA.Ifthisdifferenceissmaller,itmaybeduetoadirtyelectrode(renewcellgrit)ortheremaybechloroisocyanurateinthewater.

Large fluctuations inthedisplayforconstantchlorineconcentration

Large fluctuations in the water pressure CheckthepressureFluctuatingpHvalue CleanpHelectrode

CheckpHcontrollerFlowrateofsamplewatertoolow Check,cleanifnecessary

ErrorMessage cause RemedyDI*samplewater

Flowrateofsamplewatertoolow(<18l/h)

Checksamplewaterinletandoutletlines

DII*ext.STOP

Contactofcirculationpumpnotclosed

Checkenablecontactofthecirculationpump.

DIII*carboy?*

Dosingtankempty Exchangedosingtank

code??? Wrongcodenumberentered Entercorrectcodenumber*DPD?* Slopeerrorforthechlorinemeasuring

amplifier. The current difference requiredforspanalignmentovertheentiremeasuringrangewaslessthantheminimumvalue.

Cleanandcheckelectrodes

CheckthepHvalueofthewater(<8pH?)

Toomuchorganicchlorine(e,g.chlorinestabiliserchloroisocyanurate)inthewater.

*zero?* Poorconnectionofmeasuringcellcable.Max.zerocompensationexceeded(±5µA)

Checkthecableandmeasuringcellcurrent,recalibrate

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ErrorMessage cause Remedy*Cal.pH?* Thetoleranceof±100mVduring

pH7calibrationwasexceeded.Thetoleranceofthe10mV/pHvalueduringspanalignmentwasexceeded

Checkelectrode,impedanceconverter(battery),cableandbuffersolution;useonlyfreshbuffersolution.Checkthevaluesinthediagnosismenu.Replaceelectrodeifnecessary

*calibr.mV?* Thetoleranceof±50mVduringcalibrationwithbuffersolution478mVwasexceeded

Checkelectrode,impedanceconverter(battery)(ifappropriate),cableandbuffersolution;useonlyfreshbuffersolution.Checkthevaluesinthediagnosismenu.Replaceelectrodeifnecessary

*cellCl2?* Falsesignalfromthechlorinesensor

Checksensorandmeasuringcable

*cellpH?* FalsesignalfromthepHelectrode Checkelectrodeandmeasuringcable,replaceimpedanceconverterifnecessary

*CellmV?* Incorrectsignalfromtheredoxelectrode

Checkelectrodeandmeasuringcable,replaceimpedanceconverterifnecessary

*mA-out?* Loaderror.ThemAoutputcannotdriveitsmAoutputcurrentthroughtheconnectedcurrentloop(600Ohmat20mA)

CheckmAsignalcableforinterruption

CheckthatthemAsignalisrequiredatall(e.g.forplotter).Ifnot:Connectajumpertoaspareoutputorswitchoffallofthecurrentoutputs(SETUPmA)

*ADU1-4?* Lossofdata TheunitmustbereturnedtothefactoryforrepairifthiserrormessagereappearsafteraRESET

*autotune?* Automatictuningerror StarttheautotuneagainorenterTuandTsmanually

*Temp?* TemperaturesensorintheMultisensorisnotconnectedorisfaulty

ConnectMultisensor

ReplaceMultisensor

Switchofftemperaturedisplay(SETUPdisplayselect).Systemthenrunswithmanualtemperaturecompensation.

*Overfeed?* MaximumchlorineorpHdosingtimeexceeded

Findoutthecause(tankempty,timetooshort)

Restartbypressing[orswitchoffbysettingto0.00min.

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6 MAINTENANCE6.1 RoutineMaintenance

activity RemedyCheckforleakages DailyComparativemeasurementCl2orcalibration

Daily

Checkcellgrit WeeklypHcomparativemeasurement WeeklyCheckredoxbuffersolution Every4to6weeksReplacecellgrit Every6months

6.1.1 Daily

1 Checktheentiremeasuringdevice,includingallscrewconnections,forleaks.Repairanyleaksfoundimmediately.

2 Measuretheactualchlorine(freechlorineandtotalchlorine)and,thepHvaluee.g.usingaP15plusphotometer.

3 Openthesampledrainbyapproximatelyoneturnandtakesomesamplewater.

Ifthedisplayedvalueforthefreechlorineissignificantlydifferentfromthatmeasuredmanually,theunitmustberecalibrated,seeSection5.2.1"ChlorineCalibration".Ifthedifferencestillexistsaftercalibration,cleantheelectrodeswiththesuppliedsensorwashsolutionandrecalibrateboththezeroandDPDchlorineparameters.

noTE:Alwaysusethesametestmethodinordertoobtaincomparableresults.Airbubblesinthemeasuringcellaffectthemeasurementaccuracy.Thecausemustbedeterminedandremedied.

6.1.2 Weekly

Check that there issufficientgrit in thecellbody.Thecellgritmustbeswirlingroundinthebottomsectionofthecellbody.Thecellgritis necessary for cleaning the chlorine sensor electrodes andmust bereplenishedorreplacedwhenrequired.

noTE: Afteraddingfreshgrittheelectrodecurrentcanincreaseslightlyforapproximately2to3hours.Donotcalibrateduringthistime.

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6.1.3 Sixmonthly

Thecellgritrequiredfortheconstantcleaningofthechlorinesensorwearsitsselfdownintimeuntilitisveryfine.Itmustthereforebereplacedregularly.Thecellgritissuppliedinaplasticbottle,thecapofwhichservesasameasuringbeaker. F F A

B C D E

A CellbodyB FlowdistributorcapC Stop valveD DrainE Ball valveF Unlockingbuttons

1 Closetheballvalveonthesamplewaterinlet(E).Onthepressurisedversion,closethestopvalveonthesamplewateroutlet(C)also.

2 Openthedrainscrewonthedrain(D)andemptythecellbody(A).Onthepressurisedversion,temporarilyloosenaplugorasensortoallowairtoflowin.

3 Whenthecellbodyisempty,closethedrainscrew.

4 Removethehousingcoveroftheflowcellmodule.Todothispressthetwobuttons(F)ontopofthehousing.

5 Unscrewtheflowdistributorcap(B)(seealsoadjacentpicture).Theremainingwaterwilldrip.

6 Rinsethegritoutoftheflowdistributorcap.

7 Fillthecapofthecellgritbottleuntilitisone-thirdfullwithfreshgritandthenpouritintothemiddleoftheflowdistributorcap.

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8 Screwtheflowdistributorcapbackon.

9 Opentheballvalveonthesamplewaterinletand,ifappropriate,openthestopvalveonthesamplewaterreturnline.Thecellbodyfillswithsamplewater.Arotatingairbubbledoesnotaffectthemeasurements,itdisappearsonitsown.

10 Replacethehousingcoverandclickintoplace.

11 After2to3hoursrunning-intimeperformachlorinecaslibration.Ifnecessary,repeatthechlorinecalibrationafter24hours.

6.2 ChangingtheFuse,BatteryorMultisensor

WarnInG:Disconnect the power supply before opening the unit.Only trained electricians are authorised to open the housing.MorecomplicatedrepairsmustbecarriedoutbySiemensWaterTechnologiesservicetechnicians.

6.2.1 Replacingthefuse

1 Disconnecttheunitfromthepowersupply.

2 Removethecoveroftheelectronicmoduleandunplugtheconnectioncabletothemotherboard.

3 Checkthefuses,replaceifnecessary.F1,F2fuse0.63AT.Twosparefusesareprovidedonthesideoftheunit.

4 Plugintheconnectioncableandreplacethecover.

6.2.2 Replacingthebattery

If the clock stops1 Disconnecttheunitfromthepowersupply.

2 Removetheelectronicmodulecoverandunplugtheconnectioncabletothemotherboard.

3 Replacethebattery;(PartNo.E-100397).

4 Plugintheconnectioncableandreplacethecover.

WT.050.425.00�.GE.IM.0�09�0


A BatteryB F1,F2C Spare fuse

6.2.3 ChangingtheMultisensor

Iftemperaturemeasurementorsamplewatermonitoringfails:-

1 Shutoffthesamplewater.

2 Disconnecttheunitfromthepowersupply.

3 Removethecoveroftheelectronicmoduleandunplugtheconnectioncabletothemotherboard.

4 Removethecoveroftheflowcellmodule.

5 PresstheredringsurroundingtheMultisensorinthenpullitoutagain.

6 Disconnectthesensorcablefromthemotherboard.

7 Installthenewsensorinthereverseorder.

8 Insertthesensorcablewiththeattachedbushintothecableductsofthehousing.

9 Closebothhousingcovers.Multisensor

��WT.050.425.00�.GE.IM.0�09


7 spare parts7.1 FlowCellModuleandSensors

caUTIon: Forsafety reasons,onlyuseoriginalspareparts.PleasecontactSiemensWaterTechnologiesAfterSales department for anysparepartsenquiries/orders.

sensorsfreechlorine pH redox

spare partsSensor AAC4807 U95690 U95691Cable0.9m AAC5257 - AAD2056ConsumablesCalibrationsolutionBottle250ml

- - 478mVE-100278

Calibrationsolution12.5mlsachet

pH7.00EXA-100476pH4.65EXB-100476

478mVEXA-100477

KClreservoirKClsolution5ml

AAC4084 AAC4084 AAC4084

ElectrolytesolutionBottle250ml

AAB3547 AAB3547 AAB3547

Cellgrit U-93275 - -Beaker 1unit: AAC5587

75units: AAC5590Extensioncable 1connector 2connectors 2connectors

5m10m15m25m50m

AAC5260AAC5263AAC5827AAC5830AAC5833



Impedanceconverter - U-95607 U-95607

7.2 ElectronicModule

spare partsLabellingstrips Cl2+pH,Cl2+pH+mV AAC4555Anti-surgefuse0.63A for200-240V/100-120V AAC8989Battery E-100397Coverwithdisplay AAD2101Accessoriesset 4cableterminalscrews AAD2131

log Printer

spare parts forW&Tlogprinter,modeltallyT2024/9(AAC5998)Spareinkribbon AAC6004Printercable3m AAC5887Printercable15m AAC5914

WT.050.425.00�.GE.IM.0�09�2


FIG.1FLOWCELLMODULE(PRESSURISED)AAC6100

��WT.050.425.00�.GE.IM.0�09


Item PartNo. Description 1 AAC5908 Basichousing,pre-assembled 2 P-95408 Typeplate 3 AAC4615 Housingcover 4 AAD2041 Productlabel 5 AAC5374 Cableclamp 6 AAC5461 Multisensor 7 AAC5602 Shut-offvalve 9 AAC4891 Flatnut 10 AAC4762 Cellbody 11 AAA6982 Compressionspring 12 AAC4828 Membraneunit 13 AAC4885 O-ringd76x3/EPDM 14 AAC5371 Controlvalvebody 15 AAC4999 Plasticcartridge 16 AAC4777 Vprofileclamp 17 AAC4801 Squarenut 18 PXE-95248 Cylinderscrew 19 P-92697 Washer 20 AAC4840 Valvepin 21 P-44580-G Compressionspring 22 AAC4843 Adjustingscrew 23 AAA5537 O-ringd13x2/EPDM 24 AAC4780 Flowdistributorcap 25 AAC4888 O-ringd32x1.5/EPDM 26 AAC4774 Checkvalvehousing 28 P-92571 O-ringd12x1.5/FPM 29 AAA7051 Cone 30 PXA-95859 Ball 31 PXA-95968 O-ringd4.47x1.78/EPDM 32 PXA-95234 Insert 33 PXB-95968 O-ringd8x1.5/EPDM 34 AAC4852 Finefilter 35 AAC5605 Filterhousing 36 AAD5860 Panheadscrew 39 AAC5596 Securingring 40 AAC4861 Outletdrainpipe 41 PXC-95968 O-ringd8x2/EPDM 42 AAC7126 O-ringd5x1.5/EPDM 43 AAC4858 Drainscrew 44 AAC9550 Flatgasket 45 PXA-33051 O-ringd5.28x1.78/EPDM 46 AAC4789 Cellbodycover 47 AAC4906 O-ringd84x2/EPDM 48 P-96215 Plug 49 P-100438 O-ringd13x2.5/FPM 50 P-94734 O-ringd11.3x2.4/FPM 51 PXA-95542 Hosebushing 52 AAA6901 Lockingring 53 PXA-95702 Unionnut 54 AAC5599 Hose 55 AAC4996 Angle-reducingconnector

Item PartNo. Description 78 AAC5581 Fasteningclip,coated 79 AAC5662 Electrodemount 80 PXD-97335 Screwcap 81 AAC2551 Protectivecap 83 P-96260 Protectionplug 92 AAC4609 Wallbrackets 93 PXB-94077 Sheetmetalscrew 98 AAC5587 Beaker

Pre-assembledcomponentspart no. description consistingof:AAC5614 Cellbody,

completeItems10-25,47-49,83

AAC5608 Non-returnvalve

Items26,28-33,50,80

AAC5611 Drainageunit Items39-45,81AAC6277 Fine filter Items33-34UXA-95548 Spherical

seatItems31-33

Spare part sets part no. designation consistingof:AAC5800 Spareparts

set,basickitItems7,12,13,16-1923,25,28,31-33,41,42,44,45,47,49,50SpecialgreaseUNISILKONL250L(8mltube,AAC7189)

AAC7210 Sparepartssetfor2yearsofoperation

CellgritU-93275(2)measuringbeakerAAC5590(75pcs.),V profile clamps (2x itemNo.16)

AAC7213 Sparepartssetfor5yearsoperation

CellgritU-93275(2)measuringbeakerAAC5590(75pcs.),V profile clamps (2x itemNo.16)

FIG.1FLOWCELLMODULE(PRESSURISED)AAC6100

WT.050.425.00�.GE.IM.0�09�4


Item PartNo. QTY Description 1 U95691 1 Redoxelectrode 2 AAD2056 1 Plug/cablecombinationredox(X=0.9m) 3 AAC4807 1 Cl2electrode 4 AAC5257 1 Plug/cable combination Cl2 (X = 0.9m) 5 U95690 1 pHelectrode 6 AAE2503 1 Basic flow cell module, pressurised 7 AAD8479 1 Electronic module - Cl2/pH/mV/T 8 2398 1 Mountingboard 9 2226 1 Ballvalve 2183 1 Bush 3057 1 Hoseconnector 2190 1 ½"nipple 10 4052A 4 Boardspacers 11 2109 1 Sensorcleaner 12 6030-B 1 Strainerwithshut-offvalve

1 2 3 4 5

6 7 8

910 11

12

FIG.2BACKBOARDMOUNTEDUNIT(50235)

�5WT.050.425.00�.GE.IM.0�09


Mains Voltage Analog Outputs Interfaces

Inputs General Measuring Inputs (sensor)

L1 N/L2 mA1 mA2 mA3 RS232 RS485

+ - + - + - B A 7 8 9 10 11 12 13 14 15 32 33 29 30 31

3 2 1

L1 N/L2 PE 0/4...20mA RS232 Load Max: 600 Ohm Printer

Supply W&T-RS485-Interface 230/115V AC for CMS ChemWeb Server etc.

Digital Input Temperature Cl2 pH Redox PT100TX

D

GN

D

DI1 DI2 DI3

1 2 3 4 5 6 34 35 25 21 22 23 27 21 22 23 16 17

WR

K

REF

CN

T

WH YE

BN GN PT1000

Control Container Sample Water Cl2 pH Redox PT100 Stop Empty Control/ Temperature

RD

WH

BL

YE GN W B

FIG.3WIRINGDIAGRAM(SHEET150234)

��WT.050.425.00�.GE.IM.0�09


L N PE

Pulse TriggeredDosing Pump230/115V AC

pH Lower

L N PE


pH Lift

L N PE


Chlorine

Relay Outputs(pulse triggered dosing pump)

Alarm 2 Alarm 1 pH Lower pH Raise Chlorine 2 Chlorine 1

Pulse TriggeredDosing Pump

Relay Outputs(dosing contact)


230/115V ACL1N/L2PE

43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

L1N/L2

PE

230/115V AC

L N PE

Rel

ease

ext

erna

lst

art/s

top


��WT.050.425.00�.GE.IM.0�09


PE N max min

max min

230/115V ACPositioner pH

M~ 1

PE N max min

max min

230/115V ACPositioner pH

M~ 1

Relay Outputs (positioner)


43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

230/115V ACL1N/L2PE

M1 ~

L1 N PE

Dosing PumppH Lower

230/115V AC

M1 ~

L1 N PE

Dosing PumppH Lower

230/115V AC

M1 ~

L1 N PE

Dosing PumppH Lower

230/115V AC

Relay Outputs (dosing pump)

43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

230/115V ACL1N/L2PE

Alarm 2 Alarm 1 pH Lower Ph Raise Chlorine 2 Chlorine 1


Date post:	22-Apr-2018
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