Automated pH MeasurementMedImmune, Frederick MDRoger GovaertMarch 2011

Internal usage only

AgendaSystem OverviewMain ComponentsM700 TransmitterProgramming BasicsCommunicationsMaintenance

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EasyClean 400(X): OverviewFunctionalityFully automated electrode maintenance system.Automatically rinses cleans and calibrates an electrode mounted in an InTrac 7XXe housing.Type EC 400X for hazardous areas. System integration via Profibus PA or Foundation Fieldbus possible.TransmitterM 700 with EC 700 ModuleInTrac7XXe housingAll pH sensorsSystem requirements:

Internal usage only

System Components

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EasyClean Automation

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EasyClean 400 BaseFilter, water trapWater pressuregaugePurge airWater valveAir valvePiezo valveAir pressure-regulatorAir pressure-gaugePLCTerminals

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Media AdapterBuffer and cleaning agent container (3.5 l / 0.92 gal)Self-sustaining assembly with integrated pump

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NO moving mechanical partsNO wear outAll wetted parts are chemical resistantNO stored energy according to ATEX 94/9/EGFloating body for level indicationSuction pipeExpansion pump

Connection to the media adapterMedia Pump

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Media PumpHow the Expansion Pump worksAir/Liquid is drawn out of a main cylinder. This causes a flexible membrane tube in the center to expand. During this expansion, the media is drawn from the bottom of the membrane tube. Check valves maintain proper direction of flow.Air/Liquid is forced into main cylinder. This causes a flexible membrane tube in the center to constrict. During this constriction, the media is pushed out of the top of the membrane tube. Check valves maintain proper direction of flow.

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Sample Cleaning Agents

Cleaning AgentChemicalConcentrationSample ApplicationDiluted acids: e.g. against limy depositis Hydrochloric acid HCl Max. 5 % Sulfamic acid H3NO3S Food industry Acetic acid CH3COOH Nitric acid HNO3 Max. 5 % Diluted alkaline solutions: Proteins, starch, fats, ZIP Sodium hydroxide NaOH Max. 5 % Organic solvents: e.g. against limy depositis Ethyl alcohol C2H5OH Food industry Isopropyl alcohol C3H8OH Other cleaning agents: Pepsine solution Starch

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Media ConnectionBuffer Island EndUnique shape for error free connectionTubing Connection EndUnique size and colors for easy connectionInTrac Interface EndUnique shape for error free connection

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Housing AdapterTip: Orient this module opposite the pneumatic connections as shown in insertHousing adapter distributes buffer, cleaning agent, control air and air for indicators

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Housing AdapterStandard connections should look like this.Media connection to rinsing chamberRinsing chamber outletFeedback of SERVICE positionFeedback of MEASURE positionControl air for SERVICE position and supply for SERVICE position feedback unitControl air for MEASURE position and supply for MEASURE position feedback unitHolding bracket for strain relief of media connection

Internal usage only

AgendaSystem OverviewMain ComponentsM700 TransmitterProgramming BasicsCommunicationsMaintenance

M 700M 700 pH 2700(i), O2 4700(i), Cond 7700, CondInd 7700Open flexible systemReduce cost per loop through multi channel systemOptional Software allows application specific solutions

Common featuresVariPoWer (VPW) supply: 20 to 250 VPlain-text user interface with intuitive menu guidanceFour configurable relay contacts (extendable to 8)Logbook functionSensor network diagram2 channel recorder

M 700 Modular Concept

Components of the EC 400(x)The M 700 EasyClean 400 ModuleIntegrates in to the M 700. Communication with the EasyClean 400 via RS 485 interfaceHas an integrated pH measurement ModuleProvides the power supply for EasyClean 400

Module design allows for easy interface with M 700, ISM, PA and FF technologies

Clear Measure (Terminal 2)Red Ref. Elec. (Terminal 8)Green RTD (Terminal 14)White RTD (Terminal 13) Green &Yellow Shield (Terminal 15)Blue Sol. Ground (Terminal 12)

PT100 - Remove Jumper Term. (18 & 19) connect Gray wire.EC400 Module WiringWire the EC400(x) Module with a VP cable according the diagram.Not Used with ISM Systems

Intelligent Sensor Management pH ModuleClear CoaxColored GroundTo ISM pH SensorISM pH Module is connected to EasyClean 400 Module for automated pH functionality of ISM Sensors/Systems

Wire the BASE Module of the M 700 as follows:Power Lead 1* Terminal 18Power Lead 2* Terminal 19Earth Ground Terminal 17Output 1 (+) Terminal 7Output 1 (-) Terminal 8Output 2 (+) Terminal 9 if required Output 2 (-) Terminal 10 if required

* There is no polarity for power on the M 7001

1

2

2

M700 Base Connections

Internal usage only

AgendaSystem OverviewMain ComponentsM700 TransmitterProgramming BasicsCommunicationsMaintenance

Internal usage only

Main Menu StructureALL DEMO UNIT PASS CODES ARE SET TO 0000

Internal usage only

FRONT Module Display Configuration Press Menu key to select menu. Select parameter setting using arrow keys, confirm with Enter. Select: Administrator level: Passcode 1989Select M 700 FRONTSelect Measurement displaySet the number of primary values (large display) to be displayedSelect process variable(s) to be displayed and confirm with Enter. Pressing the Meas key returns to measurement.Notice the Module Icons for each variable! Make sure you are displaying the variable that you really want.

Internal usage only

BASE Module Output SettingsCall up parameter setting. Enter passcode.Select M 700 BASESelect Output Current I1Select your measured variableSelect Curve, e.g. Linear: The measured variable is represented by a linear output current curve. The desired range of the measured variable is specified by the values for Start and End.Enter your Start 4(0)mA valueEnter your End 20mA valuePress Meas to return to main display.

If youre using a second output, follow the same steps but when choosing the Output Current choose I2 instead of I1.

Internal usage only

Calibration Buffer Presets Calimatic bufferFor automatic calibration, you must define the buffer set you want to use. Select a buffer solutions from this buffer set in any order. The selected buffer set with the nominal values of the individual buffer solutions is displayed in gray. The Calimatic buffer menu shows all buffer sets available.Check module manual for buffer set details

Internal usage only

EC Parameter SettingsSelect Module to controlEnsure you have selected correct module (2700i pH)

Fixed of Weekly ProgrammingFixed time interval or daily/weekly custom programming

Program SelectionSelect and Edit (as desired) programs you wish to run

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Available Automated ProgramsCleaningRetract, Clean and Measure 2-Point CalibrationRetract, Clean, Cal Point 1, Cal Point 2 and Measure 1-Point CalibrationRetract, Clean, Cal Point 1 and Measure Service Retract, Clean, Extended Hold and Measure ParkingRetract, Clean, External Hold, and Measure User Defined Program 1 User Defined Program 2

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2-Point Calibration Example

Internal usage only

AgendaSystem OverviewMain ComponentsM700 TransmitterProgramming BasicsCommunicationsMaintenance

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System Integration Integration via Fieldbus NetworkInternal communication4.. 20 mADI Conventional integration: Digital Inputs/Outputs, Current OutputInternal communicationDO

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DCS Control Options

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AgendaSystem OverviewMain ComponentsM700 TransmitterProgramming BasicsCommunicationsMaintenance

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MaintenanceReplacing seals in contact with the process mediumAll seals that come in contact with the process medium should be replaced at least every six months for reason of safety. With aggressive media the seals may need to be changed at correspondingly shorter intervals. Mediumwetted seals must be examined at least monthly, as well as during normal maintenance procedures to check for dirt or damage. Frequent insertion and retraction motion of the immersion tube can also have an influence on the necessary maintenance intervals

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Maintenance

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MC 700 MaintenanceStart probe maintenanceHere you can select a preset program (Cleaning, Cal 2point, Cal1point, etc.) or one of the 2 user-specific programs. Select using arrow keys confirm with enter.

Probe maintenanceWith the EC 400 SERVICE program, the probe is moved into SERVICE position. The individual program steps are indicated in the display. After having terminated the servicing work, press the End Service softkey to move the probe back to Measuring position (PROCESS).

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MaintenanceReset wear counter The wear counter indicates the number of probe movements.

Manual controlSelect function using arrow keys. Symbol flashes, activate with enter. ON appears below the icon. Terminate function with enter. (ON disappears again.) * The access code is specified in the Parameter setting / EC 400 / Installation menu.

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MaintenanceIt is recommended that a service visit be scheduled once a year. This check-up will ensure that the Easy Clean 400 is maintained properly. Site visits will include inspection and maintenance of O rings, seals, pumps, filters, hosing and armature. These visits will also provide an opportunity for additional training as required.

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Questions?

*****************See page 70 of 7xxE manual

*See page 71 of 7XXE manual for O ring replacement procedure