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 when the filter should be cleaned or replaced. The efficiency of such a solution could be illustrated by the exemplory case of WIKA pressure gauges of the DELTA-line series in water treatment.
With Sincere and operating display ? the WIKA model DPGS40 differential pressure gauge enables safe filter monitoring.
In the water industry, reverse osmosis is a widely used process to split up water from unwanted substances. The corresponding filter systems use semi-permeable membranes.
For filter monitoring, an international solution provider for the treating drinking, industrial and wastewater uses WIKA model DPGS40 differential pressure gauges in its plants in Germany. Turbocharges 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 comes with 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. Because of 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 necessary for just two reasons. Firstly: It prevents possible contamination of the water. Secondly: The operator saves energy by using continuous filter monitoring. The more fouled a filter is, the harder the pump has to work for the desired media flow.
Integrated working pressure indication
The customer find the DELTA-line pressure gauge for filter monitoring for just one more reason ? due to the integrated working pressure indication. This information is essential to the plant manager because it allows him to draw conclusions about the respective pump performance. To obtain this information minus the two-in-one solution, he would otherwise have had to create an additional measuring location.
Further measuring requirements
As well as filter monitoring, the differential pressure gauges of the DELTA-line series are suitable for tasks in level and flow measurement. In different versions, they cover a wide range of applications. DPGx instruments can be found with analogue signal output or more 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 all instruments in the DELTA-line series are available in our flyer. Further technical home elevators the products can be found in the pressure gauge and contact pressure gauge products on the WIKA website. Should you have any questions, your contact will gladly help you.
Also read our article
Filter monitoring: An essential component for energy-efficient operation