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Title: Diagnostic Capabilities Of P? Cone Meters
Author: Richard Steven DP Diagnostics
Source: 2009 International Symposium on Fluid Flow Measurement
Year Published: 2009
Abstract: Differential Pressure (or DP) flow meters have simple and relatively sturdy designs. This combination of simplicity and ruggedness make them both relatively inexpensive and reliable devices. Furthermore, their simplicity makes their operating principles easily understandable. For these reasons they are one of the most popular generic flow meter types. A DP Diagnostics ?P cone meter sketch is shown in Figure 1, with a cut away of the meter wall to reveal the differential pressure producing cone element. Cone DP meters are growing in popularity due to their proven immunity to the effects of most flow disturbances both upstream and downstream of the meter. That is, unlike most meter designs, the cone DP meter does not need extensive upstream and downstream straight pipe lengths, or flow conditioners, to meter the flow rate accurately. Therefore, the cone DP meter can be, and is, installed in many pipe work locations where no other flow meter could operate successfully (i.e. to a low uncertainty).

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