Small water treatment plants, secondary disinfection plants etc. tend to suffer from similar problems wherever they are in the world. The first is lack of communications SCADA infrastructure, the cost of which to install can be prohibitive. The second is the lack of a central DCS control infrastructure, again the installation of which can be cost prohibitive. The third is the remote location. Often these water treatment plants are in remote and difficult to access locations.

With these three issues facing many water engineers around the world, a low cost solution providing solutions to all three issues is available from Pi. A CRIUS®4.0 controller has the on board capacity to provide small scale SCADA, and full online PID control whilst the sensors (e.g. chlorine, pH, turbidity etc.) are suitable for long term operation without operator intervention.

To demonstrate the remote access capability of the CRIUS®4.0 please click here.

To learn more about the control capability of the CRIUS®4.0 please click here.

To hear more about other customers using the CRIUS®4.0 multi-parameter controllers in a similar way why not contact us?

Each Residual Chlorine Analyser from Pi has the capability to be an extremely capable Chlorine Controller. The controllers can have multiple control channels which can utilise chemical control (usually a relay (switch) turns dosing on when the chlorine is too low or off when it is too high) or PID control.

PID stands for Proportional Integrated Derivative and it is a mathematical manipulation of the sensor signal to give an output that will control a pump and manage a constant chlorine level in the water. All the features are adjustable and there are safety features built in such as overfeed protection. For a discussion of PID control please see our technical notes here.

Pi’s chlorine controllers have been used in many control applications such as in pasteurisers, water treatment, cooling towers, swimming pools etc.