Product Introduction
The Rosemount 2051CFA Annubar Flow Meter from Emerson combines an averaging Pitot tube sensor with a differential pressure transmitter to measure flow in industrial pipelines. Its patented T-shaped sensor provides a stable pressure signal while minimizing obstruction to the process flow.
Designed for gas, liquid, and steam applications, it supports conventional wired communication and wireless options depending on the selected configuration.
Key Features
- T-Shaped Annubar Sensor: Improves differential pressure signal performance across a broad flow range.
- Low Permanent Pressure Loss: Helps reduce energy losses caused by flow measurement.
- Simplified Installation: Factory-assembled and calibrated options help reduce installation work and potential leak points.
- Flexible Communication: Supports HART®, FOUNDATION™ Fieldbus, PROFIBUS® PA, and WirelessHART® on applicable configurations.
- Local Operator Interface: Available interface options simplify field configuration and commissioning.
- Safety Certification: SIL 2/3 certification to IEC 61508 is available for applicable configurations.
- Wireless Power Option: Selected WirelessHART® versions support a replaceable SmartPower™ module with a rated service life of up to 10 years, depending on operating conditions.
Applications
- Oil and Gas: Monitoring gas and liquid flow in production and processing systems.
- Chemical Processing: Measuring process fluids in pipelines and transfer systems.
- Power Generation: Monitoring suitable steam and utility flows.
- Industrial Utilities: Measuring compressed air, fuel gas, and other utility flows.
- Process Automation: Providing flow measurements for control systems and operational monitoring.
Technical Highlights and Selection Considerations
The 2051CFA is designed for applications where low pressure loss, straightforward installation, and reliable flow monitoring are important. Its averaging Pitot tube measures differential pressure, which the configured transmitter uses to calculate flow rate.
Before selecting a model, confirm the pipe diameter, fluid properties, operating pressure and temperature, flow range, transmitter output, and installation requirements. The standard model is offered for applicable line sizes from 2 to 12 inches (50–300 mm); verify the exact configuration against the current product datasheet.
Frequently Asked Questions
Q1: What does the Rosemount 2051CFA measure?
It measures gas, liquid, and steam flow using averaging Pitot tube and differential pressure technology, subject to application requirements.
Q2: What is the main advantage of the Annubar design?
Its streamlined T-shaped sensor helps minimize permanent pressure loss while providing a representative differential pressure signal.
Q3: Does the Rosemount 2051CFA support wireless communication?
Yes. WirelessHART® is available on applicable configurations, while wired communication options depend on the selected transmitter.
Q4: What pipe sizes are supported?
The standard 2051CFA offering covers applicable line sizes from 2 to 12 inches (50–300 mm). Confirm compatibility with the actual pipe dimensions and ordering configuration.
Q5: What information is needed to select the correct model?
Provide the pipe size, process medium, operating conditions, minimum and maximum flow rates, connection requirements, and preferred communication protocol. These details help determine the appropriate configuration.
