The Rosemount 3051CFC is a differential pressure-based flow meter designed for industrial applications that require dependable measurement and efficient installation. It calculates flow from the differential pressure generated across an orifice plate, with supported transmitter configurations providing flow calculations and totalization.
Users can select a standard compact orifice plate or a four-hole conditioning plate according to process conditions and piping requirements. With multiple communication options, configurable display features, and diagnostics for electrical loop integrity and plugged impulse lines, the 3051CFC supports practical flow monitoring across a wide range of industrial processes.
Key Features
- Gas, liquid, and steam flow measurement for diverse industrial processes
- Compact orifice plate and four-hole conditioning plate options
- Line sizes up to 12 inches (300 mm)
- Flow-specific configuration and totalization on supported configurations
- 10-year installed stability under specified conditions
- 150:1 transmitter rangedown, with actual flow turndown depending on application
- Bluetooth® connectivity for convenient commissioning and maintenance
- Optional graphical, backlit display with support for eight languages
- Loop Integrity and Plugged Impulse Line diagnostics to help identify common measurement-system issues
- Leak-tested and calibrated assembly to simplify installation and reduce potential leak points
- WirelessHART® option with reported data reliability above 99%
- SmartPower™ module offering up to 10 years of operation under specified conditions on supported wireless configurations
- SIL 2/3 certification under IEC 61508 for specified configurations
Suitable Applications
- Natural gas and industrial gas flow measurement
- Liquid flow monitoring
- Steam flow measurement
- Oil and gas processing
- Chemical and petrochemical plants
- Refining operations
- Power generation
- General-purpose process monitoring
- Closed-loop process control
- Suitable custody transfer applications
- Industrial facilities requiring wireless flow monitoring
Technical Highlights & Selection Considerations
- Measurement principle: Uses differential pressure across an orifice plate to determine flow rate. Correct sizing and configuration are essential for reliable performance.
- Primary element: Choose between the compact orifice plate and the four-hole conditioning plate based on piping layout, process conditions, and measurement requirements.
- Line size: Available in sizes up to 12 inches (300 mm). Verify the exact available size and connection arrangement for the selected model.
- Measurement performance: Emerson specifies 10-year installed stability and up to 150:1 transmitter rangedown. Actual flow turndown and system accuracy depend on the application and configuration.
- Flow calculations: Flow-specific configuration and totalization are available on supported configurations. Confirm required compensation inputs and calculation functions before ordering.
- Straight pipe requirements: The conditioning plate is designed to improve flow conditioning and can reduce straight-run requirements in suitable installations. Confirm the required upstream and downstream lengths for the specific piping arrangement.
- Process conditions: Verify the fluid, flow range, operating pressure, temperature, wetted materials, and flange requirements against the current datasheet.
- Communication: Available options include wired HART® and WirelessHART®, with other protocols depending on configuration. Check compatibility with the control system.
- Diagnostics: Loop integrity and plugged impulse line diagnostics help identify electrical and impulse piping issues. Confirm the diagnostic functions included in the selected model.
- Wireless power: The SmartPower™ module is rated for up to 10 years of operation under specified conditions. Actual service life depends on update rate and operating conditions.
- Safety approvals: SIL 2/3 certification is available for specified configurations. Confirm the certification documentation required for the intended safety function.
Frequently Asked Questions
Q1: What is the Rosemount 3051CFC used for?
It measures the flow of gases, liquids, and steam in industrial process systems, supporting monitoring, process control, and suitable custody transfer applications.
Q2: How does the Rosemount 3051CFC measure flow?
It measures the differential pressure generated across an orifice plate and uses the appropriate flow calculation to determine the flow rate.
Q3: What is the difference between the two orifice plate options?
The standard compact orifice plate uses a conventional orifice measurement arrangement. The patented four-hole conditioning plate is designed to condition the flow profile and can reduce straight-run requirements in suitable installations.
Q4: Does the Rosemount 3051CFC support wireless communication?
Yes. WirelessHART® is available on supported configurations, allowing flow data to be transmitted through a compatible wireless network.
Q5: Can the transmitter calculate and totalize flow?
Yes. Flow-specific configuration can turn the pressure transmitter into a flow meter with a totalizer. Confirm the required calculation and compensation functions for the selected configuration.
Q6: What should I confirm before purchasing?
Check the line size, fluid type, flow range, process pressure and temperature, primary-element type, flange requirements, output protocol, display options, and any required safety approvals.
