Article | July 16, 2014

Add Flow To Your Liquid Analysis With Advanced Analytical Instrumentation

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By Pete Anson, Senior Product Manager, Emerson Process Management, Rosemount Analytical

Averting regulatory violations and fines. Avoiding system disruptions. Maintaining effective monitoring in complex applications. How do you tackle these kinds of age-old plant monitoring problems? New technologies in advanced analyzers offer innovative, but simple ways to address these challenges.

For example, a unique capability of the Rosemount Analytical 56 four-wire analyzer enables continuous flow measurement and totalized volume including flow rates, in addition to pH, ORP, ISE, conductivity, and other typical liquid measurements like dissolved oxygen and turbidity. The 56 can accept pulse flow type inputs and receive 4-20mA input from any flow meter to display and output flow values to a host DCS or a PLC via raw current outputs or HART® or Profibus® communications. An analyzer that measures dual-input flow allows reporting values like flow ratio, percent recovery, percent flow ratio, flow different 56R1_yellow info boxand totalized difference. In addition, the 56 can power and receive the 4-20mA signal from any 24vdc 2-wire transmitter. Only one AC or DC power source is needed to power the 56 analyzer, which then powers up to two loop-powered transmitters for the flow inputs and the analytical inputs.

Emerson Process Management, Rosemount Analytical