WTW - a xylem brand

Monitoring of Dissolved Oxygen to control aeration on a wastewater treatment plant

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The optical and calibration free sensor with flexible cable length delivers reliable readings for monitoring and control dissolved oxygen. Increase efficiency with precise measurements, low operating costs, minimal maintenance and reduced energy costs.

The calibration free optical sensor FDO® 700 IQ for dissolved oxygen is optimized for wastewater treatment plants. Due to its innovative 45° membrane cap the sensor avoid false high reading by trapping bubbles. Thus, the possible vertical mounting on a chain enables a self-cleaning effect by oscillating in the flow. The long lifetime of the cap (3-5 years) and its easy and fast change save a lot of work and time. Due to the automatic recognition a manual input of the serial number is not needed (potential source of error).

In combination with the ISE sensors for NH4 and NO3 the controlling can further be optimized.

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