Filter monitoring is really a core task of differential pressure gauges ? the differential pressure increases when the filter becomes clogged. The measuring instruments thus signal once the filter must be cleaned or replaced. The efficiency of this type of solution can be illustrated by the example of WIKA pressure gauges of the DELTA-line series in water treatment.
With microswitch and operating display ? the WIKA model DPGS40 differential pressure gauge enables safe filter monitoring.
In the water industry, reverse osmosis is really a widely used process to split up water from unwanted substances. The corresponding filtration systems work with semi-permeable membranes.
For filter monitoring, a global solution provider for the treating drinking, industrial and wastewater uses WIKA model DPGS40 differential pressure gauges in its plants in Germany. Dollar measures the pressure on both sides of the membrane.
Timely intervention at the filter
In addition to the on-site display of the differential pressure, the pressure gauge has an integrated microswitch. This sends a warning signal to the control centre when a defined limit value is reached. This enables the operator to arrange for timely cleaning or replacement of the filter. Due to its mechanical measuring principle, the filter monitoring also functions reliably in the event of a power failure.
Continuous monitoring
Prompt intervention at the filter is essential for just two reasons. Firstly: It prevents possible contamination of the water. Secondly: The operator saves energy with the help of continuous filter monitoring. The more fouled a filter is, the harder the pump must work for the required media flow.
Integrated working pressure indication
The customer find the DELTA-line pressure gauge for filter monitoring for another reason ? as a result of integrated working pressure indication. This information is important to the plant manager since it allows him to draw conclusions concerning the respective pump performance. To obtain this information minus the two-in-one solution, he would otherwise have had to set up yet another measuring location.
Further measuring requirements
Along with filter monitoring, the differential pressure gauges of the DELTA-line series are ideal for tasks in level and flow measurement. In various versions, they cover an array of applications. DPGx instruments are available with analogue signal output and up to two microswitches. All have ATEX approval. There is also a variant with SIL certification and DNV-GL approval for marine applications.
Note
An overview of most instruments in the DELTA-line series are available in our flyer. Further technical info on the products can be found in the pressure gauge and contact pressure gauge products on the WIKA website. Assuming you have any questions, your contact will gladly help you.
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Filter monitoring: A crucial component for energy-efficient operation