Product category:
Gas, Chemical, Radiation and Magnetic Sensors
News Release from: Invensys Foxboro | Subject: DolpHin
Edited by the Engineeringtalk Editorial
Team on 07 October 2002
High stability for novel pH sensor
Foxboro has a new family of pH sensors designed to improve operation in traditional problem areas within harsh process applications.
Foxboro has a new family of pH sensors designed to improve operation in traditional problem areas within harsh process applications As demonstrated at the Invensys Showcase Conference and Expo, the new DolpHin sensor line incorporates patent pending measurement and reference technology that has proven to perform more than twice as long as traditional pH sensors in harsh applications
This article was originally published on Engineeringtalk on 12 Aug 2005 at 8.00am (UK)
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The new Foxboro pH sensor line also contributes to cost savings in maintenance and equipment by significantly reducing cleaning, calibrating, and replacement requirements.
The unique pH glass formulation provides superior measurement stability and accuracy, and longer service life in high temperature applications up to 121C.
The pH glass also increases response speed up to five times and allows longer duty cycles, compared to conventional sensors.
The new reference electrode construction includes an ion barrier to protect and stabilise the reference potential in harsh conditions.
Both electrodes are packaged in a rugged mechanical housing that facilitates installation, removal, cleaning, and calibration, reducing maintenance time and costs.
The DolpHin line is available in flat and domed versions.
The flat glass design promotes self-cleaning for longer service before operator intervention.
The domed glass design operates longer and more accurately at high temperatures than conventional process pH sensors.
The DolpHin Series sensors are designed for process industry applications that span the entire pH scale, have strong chemical concentrations and high solids, run at high temperature, and cycle from high to low temperature.
These include: chemical and petrochemical manufacturing in reactors, scrubbers etc; pulp and paper manufacturing in bleaching, thin stock, thick stock, and head box; dairy processes for cheese processing and CIP (clean in place); electronics and metals processes involving etching, slurries, and metal finishing; and industrial and municipal waste water treatment, from incoming to final effluent.
(This was Engineeringtalk's Top Story on 4 October 2002).
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