Plausibility monitoring in pressure measurement

Whether a pressure transmitter measures accurately and with long-term stability depends not only on the design, but also on the process stability. Process variables such as temperature or ambient pressure can affect gauge or differential pressure (DP) measurement, especially if these parameters are “out of spec” and left unattended.

OPTIBAR pressure and DP transmitters offer diagnostics for additional process information and plausibility checks of running applications. This includes integrated   line pressure measurement (Pabs) and data logging functions (e.g. on parameter changes) that allow operators to check if an application is being operated properly.