Differential Pressure

One of the most common measurements taken by instrumentation is pressure, particularly differential pressure. So, what is differential pressure and how is it measured?   What is Differential Pressure (DP)? Differential pressure is, quite simply, the difference in pressure measured between two points.  Filtration is a common application where pressure drop across a filter (i.e. […]

Impulse Lines

One of the difficult problems pressure transmitters face is the clogging of impulse lines – the piping or tubing used to connect the transmitter to the process. Typical blockages include solid depositions, wax depositions, hydrate formation, sand plugging, gelling, frozen process liquid plugs and air or foam pockets. This type of plugging can lead to […]