Gas and Chemical Sensors / Detectors
Chemically Durable pH Sensor withstands harsh processes.
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Press Release Summary:
Model 398 TUpH® pH/ORP Sensor employs PEEK plastic helical reference pathway that protects reference element from chemical attack. Resistant to oxidants and organic solvents, sensor integrates AccuGlass pH electrode to resist cracking and SILCORE triple-seal contaminant barrier to protect integrity of pH measurement. Product is constructed of chemical-resistant titanium and Tefzel® and suited for applications in pulp and paper, chemical, and plastics manufacturing.
Original Press Release:
Emerson Introduces Industry's Most Chemically Durable pH Sensors
Rosemount Analytical Model 398 TUpH® Sensor Resists Oxidants and Organic Solvents, Ensuring Long Life in Harsh Processes
IRVINE, Calif., October 4, 2005 - Emerson Process Management today introduced the Rosemount Analytical Model 398 TUpH® pH/ORP sensor, unmatched in the industry for chemical resistance and mechanical durability and ideally suited for harsh applications such as pulp and paper, chemical and plastics manufacturing.
In pH measurement, the reference element must be protected from contamination by poisoning ions such as sulfides, cyanide, mercury and ammonia that would cause the pH signal to drift. The Model 398 TUpH features technology that ensures long life in processes that typically coat, foul and poison most other electrodes. The sensor's helical reference pathway is manufactured entirely from PEEK plastic, which provides superior chemical resistance to solvent attack, and the design protects the reference element by requiring contaminants to traverse the long, tortuous helical pathway before coming into contact with the internal reference electrode.
"The Model 398 features PEEK helical reference pathway technology for chemical resistance; an AccuGlass pH electrode to resist cracking and perform exceptionally well in dirty, high-solid environments; the patented SILCORE triple-seal contaminant barrier to further protect the integrity of the pH measurement; and chemical-resistant titanium and Tefzel® construction," commented John Wright, vice president of marketing, Rosemount Analytical Liquid Division of Emerson Process Management. "These advanced design elements make the Model 398 TUpH sensor one of the longest-life, most chemically resistant and mechanically durable pH sensors in the industry and allow it to meet nearly all process applications with minimal maintenance."
The SILCORE triple-seal contaminant barrier prevents moisture and material impurities from migrating to the reference electrode's lead wire, protecting the precision of the sensor measurement. The Model 398 TUpH also features a large surface area reference junction that has been field proven to resist plugging, so that it will continue to send a steady pH signal even in the dirtiest environments, further ensuring minimal maintenance requirements and long life.
The TUpH sensor models have been specifically designed for long life in harsh, dirty and abrasive applications such as lime slurry, waste treatment, paper machine headbox, and pigment/dye applications, where large quantities of suspended solids are present.
About Emerson Process Management
Emerson Process Management (www.emersonprocess.com), an Emerson business, is a leader in helping businesses automate their production, processing and distribution in the life sciences, chemical, oil and gas, refining, pulp and paper, power, food and beverage and other industries. A division of Emerson, Rosemount Analytical
(http://emersonprocess.com/raihome/liquid/new/398c/) includes a Liquid Division in Irvine, Calif. that designs and manufactures analyzers, transmitters and sensors for the on-line measurement of pH, ORP, conductivity, dissolved oxygen, chlorine, ozone and turbidity. The best-in-class technology and expertise of Rosemount Analytical play a key role in Emerson's combination of superior products and technology with industry-specific engineering, consulting, project management and maintenance services. Emerson brands include PlantWeb®, Rosemount®, Fisher®, Micro Motion®, Mobrey®, Daniel®, DeltaV, Ovation® and AMS Suite.
About Emerson
Emerson (NYSE: EMR), based in St. Louis, is a global leader in bringing technology and engineering together to provide innovative solutions to customers through its network power, process management, industrial automation, climate technologies, and appliance and tools businesses. Sales in fiscal 2004 were $15.6 billion. For more information, visit www.GoToEmerson.com.
PlantWeb, Rosemount, Fisher, Micro Motion, Mobrey, Daniel, DeltaV, Ovation, and AMS are marks of Emerson Process Management. Tefzel is a registered trademark of E.I. DuPont de Nemours & Co. All other marks are property of their respective owners.
CONTACT:
Bonnie Brown (949) 757-8536
bonnie.brown@emersonprocess.com
Peter Dossing (512) 832-3162
pete.dossing@emersonprocess.com
