Scandinavian Electronics Pty Ltd
presents two Cerlic sensors designed for flow measurement and sampling applications in effluent control at wastewater treatment plants.
Flow of effluent from a treatment plant needs to be measured to allow load and mass balance to be calculated. Measurement can be performed using different methods such as magnetic flow meters or open channels such as Parshall flumes or weirs, in which the flow is calculated as a function of liquid depth.
Cerlic FLX immersion sensors measure flow as a function of liquid depth in open channels. Two sensors can be connected to the same BB2 central unit, so flow can be measured in two different flumes/weirs simultaneously, e.g. effluent and by-pass flow.
Cerlic COW sensors are designed to perform reliable and representative sampling of effluent water, which contains soluble and particle nutrients. To get a representative sample, the sampling device needs to be able to cope with both small and big particles.
Sampling with a lift head of 3 - 6 metres requires good velocity in the inlet hose to prevent heavier particles from settling and jeopardising the sample quality.
Cerlic COW utilises the pre-vacuum of the sample chamber to lift samples rapidly when suction height exceeds three metres.
The built-in flushing function prevents dirt and grease from building up in the sample chamber, helping to reduce manual maintenance.