Differential pressure flowmeters are always inaccurate when measuring steam
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The Yokogawa transmitters keep showing inaccurate readings; what could be the reason?
:(Your question is too general. There are many reasons for inaccuracy. It’s really hard to answer what the problem is. Process, design, procurement, quality, installation, maintenance. . . . . There are many factors that can lead to inaccuracies
How exactly is it inaccurate? Could you describe it in detail? Thank you
There are various reasons: whether the detection element (such as orifice plates) is installed in accordance with specifications, whether there is any leakage in the pressure transfer pipes, whether there is strong electromagnetic interference at the site, whether the signal wires are shielded, whether the transmitter has been properly calibrated, and whether the parameters of the flow meter are set appropriately.......
Process, design, procurement, quality, installation, maintenance. Every aspect is quite important
The question is too general; there are many reasons. For example, inaccurate provision of process parameters can lead to incorrect design calculations for the throttling device, which in turn is likely to result in inaccurate measurements. There are also issues related to installation, parameter setting, whether temperature and pressure compensation is applied, whether small-signal rejection is set appropriately, whether the range of the secondary instrument (DCS) matches that specified in the throttling device’s calculation documents, and whether double squaring occurs with the transmitter and the secondary instrument……
There isn’t enough information~~~~~ When using a differential pressure flow meter to measure steam, there are certain requirements regarding the installation of the primary component; if the installation is done properly, there should be no major issues with the measurement.