Recent content by PolyT

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    Differential Pressure (Flow) Measurement

    I have a water flow measurement, through orifice + Differential Pressure Transmitter (DPT). DPT's signal (Dp) is connected to DCS's AI card and square-rooted (in DCS software). Question: Is the flow calculation completed with just the sqrt (Dp)? Or the sqrt(Dp) has to be multiplied with...
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    Mismatch between Calibrated Range and Re-ranged Loops in PLC

    I have an application where volumetric air flow is measured through venturi tubes and SMART Differential Pressure Transmitters (DPTs). DPT sensor's Low Range limit & Upper Range Limit are -10mbar to 10mbar respectively. The DPTs are calibrated 0~2mbar (LRV-URV). In the PLC, the loops...
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