As water is processed throughout the stages of gathering, storage and treatment, level probes are used to feed back data and control the process at each stage.
Level probes can be supplied in many forms from immersed float sensors to non-contact ultrasonic or radar probes. However, one of the most popular for these applications is the submersible pressure transmitter due to its simple installation and use.
These submersible pressure transmitters, also called level probes, are used for pump protection and to provide feedback on the level of the water in the resource. They ensure that the pump maintains the correct level and does not run dry when no water is available, thus avoiding potential damage to the equipment.
Level probes in the form of submersible pressure transmitters are used at every stage of the water cycle, beginning with monitoring the level of water in deep bore wells (borehole monitoring) to the water level in reservoirs.
Applications in water treatment combine the water retention from the resource and the processing of the water to potable water standards. At each stage level probes will help to control and measure the level in the buffer, storage and treatment tanks for water, water-treatment chemicals and potable water.
The treated, now potable, water is then pumped to local storage and high level tanks respectively. There level probes are used to control the pumps providing the water supply service by controlling the water level as necessary.
Wastewater
Once water has been used, it is recovered as wastewater and level probes are used to control the level as it passes through the various stages of the wastewater treatment.
The process combines primary treatment, including screens and grit chambers, and the secondary treatment, including aeration and sedimentation basins or membrane bioreactors to process the water until it is free of any contamination and may safely be returned to the natural resources such as rivers or groundwater.
Level probes, especially submersible pressure transmitters, are a critical part of each of these processes to ensure that water does not overflow, that pumps do not run dry and that valves open and close as required. All to ensure that water is reliably available in the right place at the right time and in the right quantity.
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