Rosemount Analytical links safety with process analyzers

02/01/2001


I n the past, many analytical analyzers were so temperamental that users often refused to allow them to be directly connected into the control system. Instead, control systems would interface with the analyzer through an operator who would observe the readings and 'tweek' the control system accordingly. In order to ensure system safety when their analyzer is part of the control system, Rosemount Analytical (Orrville, O.) has developed and obtained a control safety patent for its Raman Process Analyzer and other optical analyzers.

The Raman Process Analyzer uses the Rayleigh backscatter principle to provide reliable laser cessation for increased safety. While the probe is in the process sample, the laser remains active to measure both Raman backscatter as well as Rayleigh backscatter. When the probe is removed from the process, the amount of Rayleigh backscatter decreases drastically causing the laser within the probe to shut off immediately and automatically for operator safety. If the process vessel is empty or if the fiber-optic cables are damaged the laser automatically shuts off, reducing the potential for ignition. Unlike most laser safety mechanisms for optical analyzers, Rosemount Analytical's design requires no hazardous wiring to be run from the analyzer to the probe thus reducing the risk of ignition and explosion. Rosemount Analytical offers the only Raman process analyzer to meet OSHA 1910 safety regulations.

According to Ramasamy Manoharan, manager of spectroscopy products technology at Rosemount Analytical, the Raman analyzer delivers value where other techniques have not been successful. Rather than measuring the absorption of light by samples, Raman spectroscopy measures the light scattered by molecules. The analyzer's design permits analysis of processes containing bubbles, suspended particulate, and viscous polymeric materials. Furthermore, the Raman analyzer can measure organic and inorganic constituents in aqueous processes in addition to its capability for analyzing organic specialty chemicals and hydrocarbons.

Mr. Manoharan adds that the Raman Analyzer revolutionizes information management by acting not only as an analyzer, but also as a server providing instant diagnostics, calibration capabilities, alarms, and process information anywhere the internet is accessible in an easy to manipulate web page format. The system maintains information integrity through the use of password protection. Via Ethernet connections, the Raman analyzer can be established on both local or wide area networks. These capabilities are especially beneficial for analyzer maintenance and for facilities that combine business management with process information.

For more information,visit Rosemount Analytical's website at www.processanalytic.com




Comments? E-mail djohnson@cahners.com





No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
Each year, a panel of Control Engineering editors and industry expert judges select the System Integrator of the Year Award winners.
Control Engineering Leaders Under 40 identifies and gives recognition to young engineers who...
Learn more about methods used to ensure that the integration between the safety system and the process control...
Adding industrial toughness and reliability to Ethernet eGuide
Technological advances like multiple-in-multiple-out (MIMO) transmitting and receiving
Virtualization advice: 4 ways splitting servers can help manufacturing; Efficient motion controls; Fill the brain drain; Learn from the HART Plant of the Year
Two sides to process safety: Combining human and technical factors in your program; Preparing HMI graphics for migrations; Mechatronics and safety; Engineers' Choice Awards
Detecting security breaches: Forensic invenstigations depend on knowing your networks inside and out; Wireless workers; Opening robotic control; Product exclusive: Robust encoders
The Ask Control Engineering blog covers all aspects of automation, including motors, drives, sensors, motion control, machine control, and embedded systems.
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
News and comments from Control Engineering process industries editor, Peter Welander.
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
This is a blog from the trenches – written by engineers who are implementing and upgrading control systems every day across every industry.
Anthony Baker is a fictitious aggregation of experts from Callisto Integration, providing manufacturing consulting and systems integration.
Integrator Guide

Integrator Guide

Search the online Automation Integrator Guide
 

Create New Listing

Visit the System Integrators page to view past winners of Control Engineering's System Integrator of the Year Award and learn how to enter the competition. You will also find more information on system integrators and Control System Integrators Association.

Case Study Database

Case Study Database

Get more exposure for your case study by uploading it to the Control Engineering case study database, where end-users can identify relevant solutions and explore what the experts are doing to effectively implement a variety of technology and productivity related projects.

These case studies provide examples of how knowledgeable solution providers have used technology, processes and people to create effective and successful implementations in real-world situations. Case studies can be completed by filling out a simple online form where you can outline the project title, abstract, and full story in 1500 words or less; upload photos, videos and a logo.

Click here to visit the Case Study Database and upload your case study.