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...Diagnostic system for venturi meters richard steven tek drive crystal lake il tel e mail tektrol trol com introduction flow are popular being simple sturdy reliable and inexpensive devices their principles of operation easily understood however traditionally there has been no meter self capabilities in a generic dp methodology was proposed this paper these discussed specifically with respect to the proven extensive experimental test results from diagnostics screen displaying real time first suggested is then used present fig instrumentation sketch pressure fluctuation graph figure shows simplified through body traditional read inlet p downstream temperature t differential between tap positioned at throat i point low note that third d diffuser addition design allows measurement two extra s taps or recovered r permanent loss sometimes called ppl total head sum equals equation hence order obtain three only transmitters required mt eayc uncertainty x expansion mr ea k y z mppl ak rate show...