Interface Level Measurement

One of the biggest problems is that many interface level sensors rely on too many variables, limiting their application in the real world. So when one of our customers asked for a solution for condensate and water, we decided to design a more widely applicable sensor.

We offered the MPX-R for its rugged design and durable stem. We went with magnetostrictive technology because of its high degree of accuracy (0.1 inch resolution), and the fact that it relies only on specific gravity for its float. In the end, we were able to pull two level measurements (and a temperature reading) out of a single probe at a lower price point.

There are a few specifications this product needed to thrive in the application. First, it needed hazardous location certification. The MPX level sensor is explosion proof with a CSA Class 1, Div. 1 rating. Second, the entire probe needed to fit through a standard 2” NPT hole. We did this with smaller floats that match the specific gravity of either liquid.

Finally, we had to tackle high turbulence and high temperature variations. These tanks live in some of the hottest and coldest locations in North America. The level probe had to work in any environment. Additionally, the tanks are serviced by high power pump trucks, which move a lot of liquid really fast. The result is a-turbulent environment that can bend a long probe if not properly engineered. The rugged stem of the MPX-R can easily handle the turbulence along with the temperature fluctuations.

With the success of our MPX-R, the customer now sells a full-featured bulk liquid inventory tracking system. The system takes an accurate inventory, communicates level data remotely, and tracks the movement of liquid inventory from one location to the next.

The MPX-R level probe works well in most interface level measurement applications. Limitations are very few and include chemical compatibility and the large physical size of the sensor.

For more information on interface level measurement, remote inventory management, or magnetostrictive level probes, give us a call.