Endress+Hauser CA80PH orthophosphate analyzer.
Control system integration
Today, a range of output options exist to bring data from photometric/colorimetric analyzers to a control system. In addition to the traditional analog (4-20 mA) outputs, systems are available with a range of fieldbus digital communications, such as Profibus, Modbus or EtherNet/IP. Additionally, some systems provide the ability to integrate other sensor measurements within the analyzer, expanding the functionality of the analyzer and reducing the capital costs for additional measurement values.
Summary
Photometric/colorimetric analyzers provide valuable information for the efficient operation of a WRR plant. With careful consideration of several key attributes, plant operators can reliably obtain years of high-quality data at a reasonable cost. WW
About the Author: Steven Smith is the senior analytical product marketing manager for Endress+Hauser USA.
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