Why Differential Pressure Gauges?

In the world of process control there are many measurement variable, generally falling under the headings of pressure, temperature, level, and flow.  Instruments for measuring these variable allow system operators to monitor the condition and movement of liquids and gases. Pressure has its fairly obvious benefits to everyone.  But why differential pressure? Differential pressure gauges are widely recognized as the largest "specialty type" pressure gauge category.  They are used in filtration, flow and level.  For many the need for a single differential pressure gauge, switch or transmitter is not immediately understood.  There are…Read more