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Water analysis system

Automatic cleaning module for waterworks

Buerkert’s Online Analysis System supports waterworks in monitoring important water parameters and compliance with all directives. The automatic cleaning system carries out all functions via a CANopen-based system bus.

The MZ20 cleaning system regularly cleans the measuring cells independently and fully automatically (Photo: Buerkert)

The Type 8905 Online Analysis System gives drinking water treatment specialists an overview of the measured values to allow optimization of the single treatment steps, therefore contributing to efficient and safe drinking water production. The analysis device can now be cleaned automatically.

The composition of the water sample can contaminate the sensors of Buerkert’s Type 8905 Online Analysis System. This is the case with calcium and iron deposits or algae. Coating formation in the water sample, for example, can adversely affect the turbidity measurement. To ensure consistently accurate measurements, the sensors should therefore be cleaned at regular intervals, based on the quality of the water samples. For this purpose, Buerkert developed the Type MZ20 cleaning module, which can be connected as an add-on module upstream of the measurement system for dosing of cleaning solutions.

The module normally executes the cleaning process on a time-controlled basis. However, the module can also be programmed individually to clean when certain measurement constellations of the connected sensor cubes exist. Based on the changes in the measured values, the system tests whether the cleaning was successful and if necessary repeats the process. Commercially available cleaning liquids are pumped from a storage bottle into the measuring system. The cleaning system carries out all relevant functions such as water sample shut-off, solution dosing, and condition signaling via the CANopen-based Buerkert system bus (Büs) independently and automatically.