Coarse and fine screens

Differential water level measurement for control of screen raking

Process data

Measuring task:
Water level measurement
Measuring point:
Measuring range up to:
0 … 5 m
Process temperature:
+10 ... +30 °C
Process pressure:
0 … 0 bar
Special challenges:
Buildup, abrasion, foam


Mechanical cleaning removes entrained floating matter with screens or sieves. This protects the downstream process stages from buildup, clogging and abrasion. Solids with diameters greater than 25 mm are trapped in the coarse screens, compressed in a press and then disposed of. Finer secondary screens remove smaller residual materials. Measurement of the difference in water level between the front and the back of the screen determines the degree of contamination and initiates the cleaning of the screen when necessary.

Your benefit

Reliable control of screen cleaning
Cost effective
Non-contact and wear-free measurement
User friendly
Maintenance-free operation of the system

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Industry brochure

Level and pressure instrumentation for drinking water supply systems