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News from ZESTRON Corporation


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  • GT Yeoh, ZESTRON, to Present “Concentration Monitoring and Closed Loop Control - A Technological Advancement” at IPC Southeast Asia High Reliability Conference

GT Yeoh, ZESTRON, to Present “Concentration Monitoring and Closed Loop Control - A Technological Advancement” at IPC Southeast Asia High Reliability Conference

May 28, 2014

ZESTRON, the globally leading provider of high precision cleaning products, services and training solutions for the electronics manufacturing industry, is pleased to announce that ZESTRON South Asia’s Senior Application Engineer, GT Yeoh, will present “Concentration Monitoring & Closed Loop Control - A Technological Advancement” during the IPC Southeast Asia High Reliability Conference on May 28th, 2014.

Historically, refractive index, either in the form of hand held devices or automated systems, has been the tool of choice to measure the concentration of a solute in an aqueous solution.  However, as the wash bath becomes contaminated with flux residue resulting from the cleaning process, the refractive index reading will be skewed yielding an erroneous measurement that could ultimately result in a false correction and an unstable process.

This study focuses on technological advancements made in concentration measurement and closed loop control utilizing new technology that can accurately measure aqueous cleaning agent concentration in the presence of flux loading.  Comparative data will be presented confirming the reliability of this advanced process control methodology as compared to current methods.

Concentration Monitoring & Closed Loop Control - A Technological Advancement” will be presented on Wednesday, May 28th, at the Suntec Singapore Convention and Exhibition Centre, Singapore. 


Headquartered in Manassas, Virginia, and operating in more than 35 countries, ZESTRON is the globally leading provider of high precision cleaning products, services and training solutions for the electronics manufacturing industry. With six worldwide technical centers and the largest team of chemical engineers in the industry, ZESTRON’s commitment to ensuring that its customers surpass even the most stringent cleaning requirements is without equal.For additional information and to tour one of our unparalleled technical centers, please visit www.zestron.com.

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  • GT Yeoh, ZESTRON, to Present “Concentration Monitoring and Closed Loop Control - A Technological Advancement” at IPC Southeast Asia High Reliability Conference
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