Accurate and Efficient Water Treatment Chlorine Analysis

by | Jul 25, 2018 | Analytical, Industry, Measurement Instrumentation, Water & Wastewater

Jim Cahill

Jim Cahill

Chief Blogger, Social Marketing Leader

Chlorine is an important disinfectant whether used in swimming pools or the water that flows into our homes and businesses. For water treatment facilities, water treatment monitoring is one of the most important facility operations. Meeting regulatory requirements for residual chlorine is critical for public safety as well as for facility personnel.

This 3-minute YouTube video, Enhance Chlorine Analysis to Reduce Water Treatment Costs, shows how the Rosemount FCL Free Chlorine Measuring System measures free chlorine in fresh water.

This system does not use expensive sample conditioning systems or reagents to control pH. Instead, the analyzer automatically compensates for changes in the pH of the sample. Amperometric chlorine sensors combined with pH sensors provide simple and accurate readings of free chlorine levels that meet the U.S. Environmental Protection Agency (EPA)’s 334.0: Determination of Residual Chlorine in Drinking Water Using an On-line Chlorine Analyzer.

The system contains a Rosemount 3900 pH sensor and a Rosemount 499ACL Free Chlorine sensor. Together they work to accurately adjust the measurement based on process pH fluctuations. These sensors combined with the Rosemount 56 dual-channel transmitter provide a local display with data logging, diagnostics, and digital communications (HART or Profibus DP) back to the control system.

You can connect and interact with other water monitoring and analyzer experts in the Analytical and Water & Wastewater groups in the Emerson Exchange 365 community. Also, meet them face-to-face at the October 1-5 Emerson Exchange conference in San Antonio, Texas.

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The opinions expressed here are the personal opinions of the authors. Content published here is not read or approved by Emerson before it is posted and does not necessarily represent the views and opinions of Emerson.