residual gas analyzer / water / chlorine / pH
AW401 ABB Measurement & Analytics



  • Measured entity:

    residual gas, water, chlorine

  • Measured value:

    pH, ORP

  • Configuration:


  • Other characteristics:

    monitoring, online


Residual chlorine is one of the most important measurements for the effective monitoring of cooling, potable and industrial water treatment processes. The AW401 residual chlorine monitor control and monitors residual chlorine levels accurately and affordably.

The AW401 design enables connection of up to 3 residual chlorine monitoring sensors to the system or enables pH, ORP and residual chlorine sensors to be combined, thus reducing the cost of each measurement considerably

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