Enhanced Flow Metering

May 3, 2011
The new CFT51 Digital Coriolis Mass Flow and Density Transmitter introduces required online validation capability and pressure compensation for high-pressure, high-accuracy applications.
The updated transmitter uses HART or Modbus protocol for remote communications, as well as digital signal processing (DSP) techniques that optimize flow meter performance and improves transmitting, the company says. The patented DSP techniques allow for continuous two-phase measurement, partial empty tube conditions, start-from-empty batching online flowtube verification and online pressure compensation. The system also features user-configurable, externally powered I/O types isolated from each other, such as analog current output and alarm, frequency or scaled pulse output, and contact output and input. The transmitter is backward compatible to existing CFS10 and CFS 20 flowtube installations and certified for use in hazardous area locations. Enclosure meets NEMA 4X and IEC IP66/67 ratings. Applications include oil & gas, transportation and shipping. Invensys Operations Managementiom.invensys.com Previous reporting from AutomationWorld.com on Coriolis flow meters.