Level Transmitters for Sewage Systems

In some sewer level measurement systems, three float switches operate. But such systems are inefficient; we can use surface transmitters instead of float switches, which are an easy and reliable solution. This is a kind of electronic measurement technology.

Using such a system, the liquid level can be read continuously and at any time. Piezoresistive surface sensors determine the exact surface values, because they do not consider foam as a liquid surface (as is the case with ultrasonic systems). This system has no mechanical components that can be blocked. As a result, it is less likely to fail.

Piezoresistive level transmitters

Special pressure transmitters are applied in level measurement applications that are price-sensitive but also need a high degree of precision.

Such transmitters have a very low temperature error.

The precision of the end product relies on large part on the sensitivity and linearity of the measuring cell and the compensation of disruptive influences. The silicon measuring cell in such sensors is reliably protected against the measured medium through a stainless steel membrane. The latter, in turn, is protected from mechanical stress thru a plastic cap, while its large diameter of 17 mm makes it particularly precise and stable.