CALDON LEFM 280Ci Ultrasonic Flow Meter


The CALDON LEFM 280Ci  eight-path liquid ultrasonic flowmeter can be used on crude oils and refined products in single- or multi-product pipelines. The operating Reynolds numbers should be above 10,000 at all times to ensure maximum performance. 

The eight chordal path design of our CALDON LEFM 280Ci eight-path liquid ultrasonic flowmeter resists installation errors better than any other ultrasonic meter. The cross-plane acoustic paths make the meter immune to the effects of swirl and eliminate the need for an upstream flow conditioner. The effects of swirl on the four paths in one plane are equal and opposite to the effects of swirl on the four paths in the second plane. When the velocity readings from all eight paths are averaged together, any effects from swirl are cancelled out. 

This flow meter's design also minimizes the requirement for upstream/downstream pipe runs. The elimination of a flow conditioner and the need for shorter lengths of upstream pipe reduce the installed cost for the CALDON LEFM 280Ci eight-path liquid ultrasonic flowmeter. This also results in lower overall pressure loss, which equates to annual savings in pumping costs.


Standard Features

  • Insensitivity to swirl
  • Electronics can be integrally or remote mounted
  • Available in 4" to 40"
  • ±0.10% linearity over the nominal flow range
  • OIML R117-1 Edition 2007 (E); Accuracy Class 0.3

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