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HAFFMANSALWAYS OPTICALfood & BeverageOxygen measurement

ModernOxygenManagementin BreweriesOPTICAL OXYGEN MEASUREMENTOptical oxygen (O 2)measurement forbrewing technologywas first used in 2004.Today, you can coverthe entire process,from the brewing roomto bottled productincluding all relevantgases and liquids, withstatic and/or portableoptical measurementsystems. This minimizeslosses in both productand quality much moreeffectively than withtraditional methods fordetermining O 2, whichraises a brewery’soverall performance.The credo for up-todateO 2managementis therefore, ‘alwaysoptical’.In optical measurement, sensorsdetermine the O 2content according to thequenching of luminescence (fluorescenceand phosphorescence) principle. Theluminescence of dye molecules in anexited state changes depending on thequantity of O 2. Oxygen from the medium(gas or liquid) diffuses in the O 2sensoruntil equilibrium is reached, whereasthe medium has no effect on the O 2measurement.To carry out the analysis, the layer of thesensor that is sensitive to O 2is illuminatedwith a blue light. This brings the O 2-sensitive molecules in the O 2sensor to anexcited state. When these molecules losethe excited state they will emit red light.The O 2in the sensor collides withO 2-sensitive molecules. This affectsluminescence intensity and time.The luminescence behavior enablesdetermination of the O 2concentration,while considering the medium’stemperature.BenefitsThe optical O 2measurement offers manybenefits to the brewing and beverageindustries and outperforms the traditionalClark cell O 2measurement. In addition,optical measurement requires nomaintenance and much less frequentcalibration and its measurement stabilityand response time is better.• Rapid response timesThe very quick response time resultsin fewer product losses. For example,every minute that an analysis is fasteradds 250 liters of beer to a150 hl/h filler.With the traditional Clark cell, the O 2must first diffuse through a membrane,go into a solution in the electrolyte, andestablish equilibrium. An electrode isplaced in the electrolyte to measure theO 2concentration based on an electricalcurrent through the electrolyte. Thisanalysis is a rather slow process,compared to the optical O 2measurement.• Low operational costsThe optical O 2requires no maintenanceand minimal calibration. It is empiricallyguaranteed that after one millionilluminations, deviation from the zeropoint is only five ppb and at higherO 2values, no significant deviation isrecorded. Assuming 500 illuminationsper day, seven days per week, 52 weeksper year, the sensor would, from a purelytechnical perspective, only need to becalibrated or replaced once every fiveyears.

Response TIME10Pentair Haffmans optical O 2MeasurementTraditional O 2measurementRESPONSE TIME987O2 value (ppm)65432100 20 40 60 80 100 120 140 160 180 200T0 T90 T99time (s)seamless O 2management forwhere it matters the mostWith the traditional Clark cell, electrolyteshave to be replaced, new membranesinstalled and the system re-calibratedat least every one to three months. Aftercalibration, the measurement cell needsto polarize, which often means that thesystem is only ready to use again afterwaiting eight additional hours.When optical O 2measurement is comparedto the traditional method, operating costsavings of up to 50 percent can be realized.All of Pentair Haffmans’ O 2measurementinstruments use identical optical systemsthat can be used on all relevant gases− carbon dioxide (CO 2) and nitrogen (N 2) −and liquids (water, wort, yeast, deaeratedwater, beer and beverages). This applies to:• Portable O 2equipment• In-line O 2equipmentCurrently, the most important areas forseamless O 2management are the brewhouse, cold block and packaging.Brew houseIn the brew house, the degassed wateris used for sparging at the lauter tun ismonitored. A high O 2value can lead toundesirable wort coloration.For measuring high quantities of O 2dissolved in wort the optical O 2instrumentis positioned after the aeration to monitorswitching the aeration on and off, whichassures the right conditions for optimalfermentation.In addition, yeast propagation can becontrolled with an in-line solution ormonitored with a portable O 2meter.• Portable and in-line combined CO 2/O 2equipment• Lab equipment for CO 2/O 2measurementof filled packagesThis continuity provides the brewery orbeverage plant with absolute comparabilityof measurement values. Furthermore, theoperating method and menu structure forall optical O 2measurement equipment areeasy to operate and very similar, whichminimizes the risk of operator error.Cold blockApplications in the cold block includemeasuring the O 2content in thefermentation, storage and bright beertanks. Here, combined O 2and CO 2metersdetect both parameters by taking a singlesample, which reduces product loss andsaves working time.Oxygen pick-up is monitored on the inletand outlets of centrifuges and filters. Arapid and reliable result allows you to react

sooner to reduce production losses andincrease efficiency.In high gravity brewing an additional checkin the cold block monitors whether anyadditional O 2pick-up occurred when thedeaerated blending water and CO 2wereadded during carbonation. A separatemeasurement of dissolved oxygen (DO)after water deaeration assures thatthe deaerated water meets the qualityrequirements.An optical O 2instrument installed at thefiller inlet provides a quick O 2measurement,which means a shorter changeover time.Furthermore, it prevents inadequateproduct quality ending up in the package.In-line O 2meters for gas are installed tomonitor removing CO 2from a tank beforeit is cleaned-in-place with caustics, tominimize the risk tank implosion.Considered as a whole, O 2measurement inthe cold block increases the productivity andreduces beer losses.PackagingDifferentiated O 2measurement in thepackaged beveragesEven if all measures are taken duringprocessing and the O 2quantity in the beeror beverage is within specifications beforepackaging, the filling process can affect theTotal Package Oxygen (TPO) quantity. Oxygenenclosed in a package has a major influenceon the beverage’s shelf life and flavorstability, and can only be measured in thepackaged beverage.Using the traditional Z-method, the TPOvalue is obtained by measuring DO in apackage that is shaken to equilibrium.Pentair Haffmans provides a novel methodthat enables measuring TPO from asingle package, which includes the O 2inthe headspace and the DO. This makes itpossible to directly pinpoint the source of theO 2and identify filler inefficiencies in:• Package preparation• Liquid handling• Headspace air retentionWith this novel method of TPOmeasurement and use of the optical O 2measurement, breweries and beveragecompanies are able to improve theefficiency of the filler and reduce productlosses.UtilitiesThe optical O 2measurement can be appliedin the utilities to monitor, for example, theO 2content of CO 2gas from fermentation,compressed and/or ultra pure gases toprovide key parameters in an efficient andeconomical operation of a CO 2recoverysystem or a N 2generation plant.Optical O 2measurement is suitable formany other areas including monitoring theO 2content of water for the steam boiler.conclusionThe innovative opticalO 2measurementtechnology provides afast and accurate pictureof the entire brewingor beverage productionprocess. This results inquicker response times,immediately lowerproduction losses andreduced OPEX. PentairHaffmans’ Total O 2Management solutions,based on the innovativeoptical O 2technology,using laboratory,portable at-line andin-line equipment makeseamless managementpossible.Please feel free to contact us if you have anyquestion about the described applicationsand challenge us to come up with moreapplications for the optical O 2measurement!

optical oxygen measurement — range of productsLaboratory EquipmentInpack TPO Meter, type TPOThe Inpack TPO Meter, type TPOautomatically determines the total O 2content by measuring the dissolved O 2andthe headspace O 2content of the packagedproduct in a single measurement.Inpack TPO/CO 2Meter, type c-TPODetermines the dissolved O 2, headspaceO 2and total O 2content of the packagedproduct. In addition, the c-TPO measuresCO 2.AutomatorPentair Haffmans’ Automator automaticallymeasures all relevant quality parametersdirectly in the filled package in a singlemeasurement cycle. In addition to the basicparameters O 2and CO 2, the system canbe extended for further analysis to meetcustomer requirements.Portable EquipmentO 2Gehaltemeter, type o-DGMThe portable O 2Gehaltemeter combineshigh accuracy with excellent measurementstability. The instrument is equippedwith an advanced operator and locationidentification system, which providestraceability of measuring data.The o-DGM is available in two measuringranges for DO and O 2in gases:• Low measuring range (LHO) for accurateDO measurement of beverages < 2,000ppb (e.g. beer and deaerated water) andof the O 2content of CO 2gas up to 4.18percent (e.g. CO 2gas from fermentation)• Wide measuring range (WLO) for accurateDO measurement of beverages < 45 mg/l(e.g. wort, soft drinks and non-deaeratedwater) and of the O 2content of air andmixed gases up to 100 percent.CO 2/O 2Gehaltemeter, type c-DGMThe CO 2/O 2Gehaltemeter combines theinternationally standardized determinationof the dissolved CO 2content based onHenry’s Law with a highly accurate DOmeasurement. The design allows forhigher product pressure, making it suitablefor the soft drink industry. Equippedwith an advanced operator and locationidentification system, it provides traceabilityof measuring data. Up to 10 differentproduct types can be programmed into theinstrument.IN-LINE EQUIPMENTIn-line O 2Gehaltemeter, type OGMThe in-line O 2Gehaltemeter, type OGM,combines high accuracy with excellentmeasurement stability.The instrument is available in threemeasuring ranges for DO and O 2in gases:• Low measuring range (LHO) for accurateDO measurement of beverages < 2,000 ppb(e.g. beer and deaerated water) and of theO 2content of CO 2gas up to 4.18 percent(e.g. CO 2gas from fermentation)• Wide measuring range (WLO) for accurateDO measurement of beverages < 45.0 mg/l(e.g. wort, soft drinks and non-deaeratedwater) and of the O 2content of air andmixed gases up to 100 percent• Ultra pure range (LHG) for measuringthe O 2content of treated CO 2gas fromfermentation up to 200 ppm v/v and/orgenerated N 2In-line CO 2/O 2Meter, type AuCoMet-iThe in-line CO 2Meter combines theinternationally standardized determinationof the dissolved CO 2content based onHenry’s Law with a highly accurate DOmeasurement.o-DGMc-DGMc-TPO

HAFFMANS BVP.O. Box 3150, 5902 RD Venlo, Netherlands info@haffmans.nl WWW.haffmans.nlAll Pentair trademarks and logos are owned by Pentair Ltd. All other brand or product names are trademarks or registered marks of their respective owners. Because we are continuously improving our products and services, Pentair reserves the right to change specifications without prior notice.Pentair is an equal opportunity employer.Haffmans E-9/13 © 2013 Pentair Ltd. All Rights Reserved.