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6 News Machinery, Plastics, Electronics Accurate Weighing Aids Emissions Testing Weighing accuracy is vital to Mahle Powertrain’s Vehicle Emissions Laboratory, based in Northampton, UK, as they measure particulate matter down to a 10t h of a microgram. Toget her wit h METTLER TOLEDO, Mahle was able to ensure accurate emission measurements and achiev e full compliance to US and EU legislat ion. Stricter regulations in place Determining the weight of particulate matter (PM) is a key task in the automo- tive industry and is likely to become more important as emissions standards become stricter. As a major supplier to the automotive industry, Mahle uses the latest Horiba technology to meet customers changing needs. Their ambient and climatic test capabilities accommodate current and future requirements for testing, develop- ment and certification work. To enable Mahle to conform to the strict regulations held within the automotive industry, they needed to ensure accurate, reliable and consistent weighing results time after time. Therefore, equipment repeatability and consistency was key to enable them to meet the demanding requirements that Euro 5 regulations require. Meeting emissions standards wit h minimal effort To help Mahle gain more accurate read- ings when measuring particulate matter, METTLER TOLEDO’s XP2U Ultra Micro Balance, together with a filter weighing kit and clean booth weighing environ- ment, provided a state-of-the-art solution for emissions determination. The measurement system enabled fast and accurate weight determination down to 0.1 μg, meeting the company’s standards as well as adhering to the strict automotive and environmental requirements, in this case Euro 5. The XP2U’s innovative weigh- ing pan enabled perfect filter placement Analytical solutions in the laboratory

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Page 1: Machinery, Plastics, Electronics News - Mettler ToledoMETTLER TOLEDO Machinery, Plastics, Electronics News 6 3 Thermal analysis is an excellent technique that can be widely used in

Weighing and Analysis in the Laboratory

6News

Machinery, Plastics, Electronics

Accurate Weighing Aids Emissions Testing

Weighing accuracy is vital to Mahle Powertrain’s Vehicle Emissions

Laboratory, based in Northampton, UK, as they measure particulate

matter down to a 10th of a microgram. Together with METTLER TOLEDO,

Mahle was able to ensure accurate emission measurements and achiev

e full compliance to US and EU legislation.

Stricter regulations in place Determining the weight of particulate matter (PM) is a key task in the automo-tive industry and is likely to become more important as emissions standards become stricter.

As a major supplier to the automotive industry, Mahle uses the latest Horiba technology to meet customers changing needs. Their ambient and climatic test capabilities accommodate current and future requirements for testing, develop-ment and certification work. To enable Mahle to conform to the strict regulations held within the automotive industry, they needed to ensure accurate, reliable and consistent weighing results time after time. Therefore, equipment repeatability and consistency was key to enable them

to meet the demanding requirements that Euro 5 regulations require.

Meeting emissions standards with minimal effortTo help Mahle gain more accurate read-ings when measuring particulate matter, METTLER TOLEDO’s XP2U Ultra Micro Balance, together with a filter weighing kit and clean booth weighing environ-ment, provided a state-of-the-art solution for emissions determination.

The measurement system enabled fast and accurate weight determination down to 0.1 μg, meeting the company’s standards as well as adhering to the strict automotive and environmental requirements, in this case Euro 5. The XP2U’s innovative weigh-ing pan enabled perfect filter placement

Analytical solutions in the laboratory

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and the Haug anti-static device provided a shorter stabilization time promoting in-creased productivity.

In addition, the instruments’ easy main-tenance and simple to use function keys meant simplified, straightforward routine checking for Mahle and staff that could be quickly and easily trained.

Gavin Mabbutt, senior emissions engineer explains, “The VCA type approved EU 5/6 upgrade puts Mahle Powertrain’s inde-

pendent emissions facility in a prime posi-tion to carry out our clients’ development and certification requirements”. He also adds, “With consistent repeatability and ease of use, the METTLER TOLEDO’s XP2U Ultra Micro Balance supports the accuracy and repeatability demands required for the low emission test results that Mahle Powertrain produces for its clients.”

Mahle Powertrain can now easily con-form to the Euro 5 regulations and work towards the future Euro 6 with confidence.

Publisher Mettler-Toledo AG Laboratory Division Im Langacher CH-8606 Greifensee, Switzerland

Production Segment Marketing LABGlobal MarCom Switzerland

Subject to technical changes. © Mettler-Toledo AG 08/10 Printed in Switzerland.

Mahle’s experience allows them to help customers find engineering solutions to meet the increasing pressure from govern-ments and the public to control the impact of automotive pollution on the environ-ment.

www.mt.com/micro

VCA Type approval certified Full flow Duplex particulate tunnel, with 47mm filter holders as per for EU5 requirements.

Mahle's staff performing filter weighing.

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Thermal analysis is an excellent technique that can be widely used

in the semiconductor packaging industry. It offers many solutions for

design and development processes as well as in quality control and

failure analysis.

DSC – the fast and simple solutionTypically, an epoxy based compound is best suited to the encapsulation material used for integrated circuits in electronic equip-ment due its excellent thermal and dimen-sional stability and good outdoor proper-ties. The curing and rheological behavior is also important and must be controlled to ensure consistent processes and the qual-ity of the components produced. The MET-TLER TOLEDO DSC 1 is a powerful tool for investigating the curing behavior of an ep-oxy based compound.

The DSC curves in Figure 1 were evaluated using the STARe software and provide pro-cess engineers with valuable information about the glass transition (Tg), the start-

ing temperature of the curing reaction, the heat of cure and the end temperature of the process. The manufacturing of a low quality end product may result when this information is not available.

The DSC 1 is an essential tool for optimiz-ing process parameters in the semicon-ductor packaging industry. It is not only important in the design and development processes, but also for failure analysis and quality control purposes. The DSC 1 also delivers fast and accurate results over a wide temperature range. In addition, the DSC 1 can be equipped with a sample robot which enables fully automated measurements to be performed.

www.mt.com/dsc

Optimizing Process Parameters in Electronic Packaging

DSC 1

Figure 1. DSC curves of an epoxy based compound.

www.mt.com/ta-books

To order a copy of this handbook, go to:

Know-How

Application handbooks from the technology leader

We offer specialist application handbooks for the most impor-tant areas in thermal analysis. The handbooks cover:• basic principles and applications of DSC, TGA, TMA and DMA• discussion on problems and conditions of experiments• evaluation, interpretation and final conclusions

Page 4: Machinery, Plastics, Electronics News - Mettler ToledoMETTLER TOLEDO Machinery, Plastics, Electronics News 6 3 Thermal analysis is an excellent technique that can be widely used in

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One

Clic

k™ T

itrat

ion Solar-Cell Manufacturing Process

Quality Control by Titration

The Photovoltaic industry is fast growing with an interesting solar

cell production process. Meyer Burger Swiss Solar Systems offers

advanced cutting technologies combined with high precision wafer

handling, automation and measurement systems for valuable solar

modules. Titration analysis plays an important role in their quality

control methods for each production step.

Technology of the futureMeyer Burger Technology Ltd. is a leading, and globally active, technology group cre-ating innovative systems and processes for cutting and handling crystalline and other high-grade materials. In Switzer-land, they develop and manufacture band saws and complete systems for cutting 99.9999% pure silicon bricks into thin plates; so called wafers, which are then processed into solar cells.

One brick is sliced into up to 3,000 wafers in one step. Steel wire is lead through a bath consisting of polyethylene glycol (PEG) and silicon carbide (SiC) called slurry. The slurry supports the wire to abrade silicon in order to cut the brick. Another possibility would be to use wire

with small diamonds attached. In this case, no slurry is needed but rather an aqueous cooling solution. The titration analysis constitutes a large and important

role in slurry quality control, the cooling liquid and cleaning bath. Amazing titration solutionsThe slurry contains water and accumu-lates more over time. If the water content is too high, irregularities result on the wa-fer’s surface. Therefore, the water content is an important parameter for quality as-surance and is determined through Karl Fischer titration. The fresh PEG and the used slurry are added directly into the Karl Fischer titrator’s titration vessel in order to determine the exact water content. As SiC does not dissolve in alcohols, the water content determination of the pure SiC is performed with the gas extraction method

Wafers are sliced and thenprocessed into solar cells.

In the lab of Meyer Burger

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(oven method). The T90 Excellence titra-tor and the Stromboli oven sample chang-er perform these analyses in a fast, reliable and extremely precise way.

In diamond wire sawing, the cooling solu-tion contains a non-ionic surfactant. This lowers the solution’s surface tension and prevents the individual wires from stick-ing together through the liquid. The sur-factant’s concentration is monitored us-ing the Excellence titrator and the surfac-tant sensor DS500 in order to guarantee optimal functionality.

The freshly cut wafers are cleaned in dif-ferent baths. These include acidic and al-kaline baths as well as pure water. In ad-dition to the pH value, the acetic acid concentration is determined in the acidic bath and the hydroxide/sodium carbonate content in the alkaline bath. The exact composition of the baths and their pH is crucial for the wafer’s surface structure

the quality of which is determined in the laboratory or directly during production using the Excellence titrator.

The wafers are rinsed with pure water be-tween the cleaning steps and at the end of the process. The conductivity of the rins-ing water is measured with the T90 Excel-lence titrator in order to ensure that the surface is free of deposits.

One Click™ TitrationThe Excellence Titrators perform all the aforementioned analyses in a simple, efficient and secure manner. The analyti-cal data generated in the laboratory is automatically stored in the PC software LabX® titration and is available at any time for further investigation. Titration Excellence and LabX® titration ensure fast and safe quality control for the photo-voltaic industry.

www.mt.com/one-click-titration

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LabX

LabX One Click™ Loss on Drying

Powered by LabX

The quality and longevity of plastic is highly dependent on the moisture

content. The moisture content of the plastic granules should be below

the defined maximum permissible level in order to avoid processing

problems, poor product quality or reduced physical properties. Deter-

mining moisture content by loss on drying takes time and must be car-

ried out with care and precision to ensure all results are obtained and

logged without error. One Click™ Loss on Drying powered by LabX offers

a significantly easier and worry-free process.

The challenge for orderLoss on drying is a long process due to the time required for pre-conditioning tare containers, drying samples in the oven and the subsequent cooling in a desicca-tor. Handling the samples requires care and identifying samples correctly is es-sential. Maintaining sample order to avoid error in the results is a challenge. Errors are also easily introduced into the procedure via transcription error, incor-rect calculations and results recording.

Crucibles are typically labeled by hand meaning that handwriting must be clear

All these difficulties are magnified when several analyses are being run simultane-ously. One Click™ Loss on Drying powered by LabX eliminates these problems mak-ing the whole process significantly faster and stress-free.

Simplicity with One Click™ WeighingThe loss on drying procedure is started with one touch on the balance touch-screen. The user simply follows the step-by-step instructions on the balance and LabX takes care of all the rest. Steps 1-5 illustrate how easy it is to perform a loss on drying analysis with all documenta-tion and results fully under control.

The user enters the number of samples in the analysis and prints the barcode labels to be stuck onto the crucibles. After being preconditioned in the oven, the crucible ID is scanned with a barcode reader and the crucible is weighed empty. The sample ID is entered and the balance’s SmartTrac weighing guide is used to ac-curately weigh-in the correct amount. The ErgoClip for round bottomed con-tainers ensures that the crucible is pre-

LabX

and numbering correct. This labeling is critical for accurate result recording. At each stage of the process, the weight mea-surement must be recorded against the correct crucible. Result recording be-comes even more demanding if the cru-cible order becomes mixed up.

Performing calculations correctly is es-sential for accurately determining mois-ture content. However, the procedure of copying figures from the balance to a cal-culator or spreadsheet is tiresome and er-ror prone.

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One Click™ StartEnter number of samples, print labels.

Label crucibles and precondition in oven.

WeighScan crucible ID and weigh empty.

Enter sample ID, use SmartTrac to weigh samples.

DryDry samples in oven then cool in desiccator.

Resume task on balance and weigh dried samples.

Result Calculation % moisture calculated automatically.

Green screen indicates result is within specified tolerances.

DocumentationEverything is automati-cally recorded.

Customized reports can be printed at any time.

1 2 3 4 5

www.mt.com/one-click-weighing

cisely positioned on the balance for secure dosing. The samples are dried in the oven and then cooled in the desiccator.

Resuming the task on the balance, the weighing order of the dry samples is of no relevance. Scanning the crucible barcode uniquely identifies the sample and re-cords the result correctly. The percentage moisture content is calculated automati-cally for each sample.

Throughout the procedure, LabX auto-matically stores all data securely in a cen-tral database ensuring full traceability. A report can be printed automatically at the end of the process and even be sent to a printer outside the laboratory. Results are easily accessed to print further reports as and when required.

LabX contains a built-in method template for the loss on drying procedure and the

Method Designer allows the template to be customized according to users’ precise needs. New methods can also be created from scratch. Some general report tem-plates are included for ease-of-use and the Report Designer offers users the opportu-nity to create personalized reports ac-cording to individual or corporate style.

One Click™ Loss on Drying powered by LabX – organized and easy!

One Click™ Loss on Drying – Powered by LabXSimply start the method with the One Click™ shortcut on the balance touchscreen. LabX guides you step-by-step through the SOP on the balance, performs calculations automatically, and takes care of saving all data. Intelligent task management makes it easy to run several series simultaneously. The complete solution can be tailored to match your process requirements.

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Onl

ine

Tool

s Seeing is BelievingWatch the Video and Convince Yourself

Common lab dilemma

The multimedia gallery demonstrates innovative solutions for even the most challenging weighing process in your lab. The unique product features and innovative accessories guarantee efficient and ergonomic sample handling.

Our solutions

Disturbance of electrostaticYour sample sticks to the tare container due to elec-trostatic charging and and the balance won’t stabilize.

Anti-static kit – discharges samples instantlyThe U-Electrode remove charges from samples and tare vessels immediately. Toxic substances no longer pose a threat to the user and cross-contamination of samples is prevented.

Spillage of precious samplesYou use weighing paper to transfer precious sample to a tare container. The sample is easily spilled and results are inaccurate.

ErgoClip – doses samples securelyThe ErgoClips safer dosing method substantially reduces con-tamination risks, enables fast dosing processes and increases productivity.

Handling of toxic chemicalsYou’re handling harmful chemicals and want to avoid direct contact.

Solvent Manager – handles chemicals safelyThe Solvent Manager increases operator’s safety in the lab by ensuring that direct contact with harmful chemicals is avoided.

www.mt.com/lab-AntiStatic

www.mt.com/ergoclips

www.mt.com/ titration-solventmanager

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METTLER TOLEDO's product finders in mt.com provide a straightforward way to find a product best matching your needs. Just key in your specific criteria and let the product finders do the rest.

Take the direct route to what you are looking for

EasyFinder™ finds your balance of choiceChoosing the right balance for your lab becomes straight forward. Simply enter your selection criteria, select the mod-els of interest and learn more about and/or compare details of the chosen models.

www.lab-balance.com

Sensor product guide foroptimized measurementThis interactive and animated tool helps you to identify the most suited sensor for your specific application.

www.electrodes.net

Find a NewClassic balance in just 30 secondsJust enter your technical criteria and the quick search guides you through a variety of NewClassic models. Click on the product’s picture to learn about the product in detail.

www.mt.com/newclassic

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Designed to LastFor Machinery and Plastics Producers

Prod

uct N

ews

Manual quality control prior to product release is crucial to the entire

production process. Checks need to be performed as quickly as

possible without compromising on quality. NewClassic MS Balances

promise reliable and accurate results within the shortest possible

time.

MonoBloc and FACT insideThe proven high-performance Mono-Bloc weighing cell guarantees long ser-vice life and extreme ruggedness. FACT automatically adjusts the balance us-ing internal weights at specific times or whenever changes in temperature affect the accuracy of the weighing results.

Once level, always levelFixable, rear support LevelLock feet offer extra stabilizing safety preventing the balance tilting over under over-sized loads.

Durable and robustThe metal housing protects the weighing sensor from environmental influences for guaranteed consistency and preci-sion year after year.

www.mt.com/newclassic

Quickly set the language or change the date, clean the IP54, ridge-free design conveniently and mini- mize electromagnetic interference from other equip-ment on weighing results. NewClassic helps to make operation time more efficient.

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www.mt.com/titration-solventmanager

Automatic drainingThe integration of the drain function into the method allows automatic sam-ple draining after the titration without any user intervention saving valuable operator time.

One Click The Solvent Manager takes care of the filling and draining of solvents. It is fully controlled by the titrator and can be activated with just One ClickTM.

Safe Handlingof Chemicals

Contact with harmful chemicals, for instance, electroplating baths,

lubricants and etching solutions, should always be avoided. The

Solvent Manager facilitates the filling and draining of samples used

for titration analysis. Increase safety in the lab whilst simultaneously

saving time with sample preparation by using Solvent Manager to

handle chemicals with One Click™.

Overflow protectionThe Solvent Manager offers full security against water reagent overflow.

Titration automation Beakers are emptied after each analy-sis with Rondolino and Rondo sample changers, preventing dangerous expo-sure to solvents.

The Solvent Manager is a device for the handling of liquids against the contact of the user with chemicals.

Page 12: Machinery, Plastics, Electronics News - Mettler ToledoMETTLER TOLEDO Machinery, Plastics, Electronics News 6 3 Thermal analysis is an excellent technique that can be widely used in

Spotlight on Promotion

www.mt.comFor more information

Mettler-Toledo AGLaboratory DivisionIm LangacherCH-8606 Greifensee, Switzerland

Trade in your old Melting Point apparatus and get a MP70 or MP90 for an exceptional price!

Simple, efficient & video-recorded• Color touch screen with One Click™ user interface• Simultaneous determination of up to six samples• Color video recording and convenient playback on the

instrument• Conformity with current standards: Ph. Eur., USP, ASTM, ISO and others

Excellence Melting Point SystemsTrade-In Offer

Offer is valid until December 31, 2010.

www.mt.com/one-click-melting