Emerson Process Management Rosemount ANR-61 Flow Meter

Emerson's Rosemount ANR-61 Annubar Flow Meter is a differential-pressure flow instrument that uses Rosemount's Annubar averaging pitot-tube technology to derive flow from the pressure difference created as process fluid passes the sensing arrangement. Designed for circular-pipe installations, it provides a differential-pressure signal that differential-pressure transmitters read to compute volumetric flow. Annubar meters measure the flow of liquids, gases, and steam across a wide range of process conditions and are widely used in oil and gas, chemical processing, power generation, water and wastewater, and HVAC applications, particularly in large-diameter piping where accurate, reliable flow data is essential. The ANR-61 model embodies this proven technology in a compact primary element that supports straightforward installation and monitoring of real-time flow in demanding environments, with no moving parts to wear and minimal maintenance requirements. Emerson provides installation, calibration, and maintenance documentation for Annubar flow meters to aid proper mounting and wiring on circular pipes and to ensure consistent performance across the life of the meter.