Some people don’t know this, but almost all installation guidelines for various flow meter types and designs are largely based on flow meter piping requirements. In fact, it basically plays a significant role in choosing the right metering principle or technology behind the instrument, specific to the flow measurement application.
Regardless of its characteristics, when fluid flows through a channel, it moves pretty consistently with the peak velocity occurring near the middle of the pipe. When flow meter installation is not done correctly, or if the wrong digital flow meter technology is installed, flow measurement can become inconsistent and inaccurate. Improper flow meter configuration may cause one of two types of common fluid disturbances; flow profile distortion and swirl.