The Rosemount 3051SFA Annubar Flow Meter is a "no-equal" industrial solution featuring a patented, averaging pitot tube that delivers superior measurement accuracy over a wide flow range. Its innovative T-shaped sensor is engineered with an integrated thermowell, allowing for simultaneous differential pressure and process temperature measurements through a single pipe penetration. This streamlined profile significantly reduces permanent pressure loss, directly contributing to increased energy savings.
Equipped with the Ultra for Flow performance class, the 3051SFA achieves an optimized ±0.04% of reading accuracy. The meter is designed with built-in flow calculations to provide direct reporting of fully-compensated mass flow, volumetric flow, and energy flow. To ensure the highest level of precision, Callendar-Van Dusen sensor matching is utilized to improve temperature accuracy, enabling best-in-class flow calculations.For projects requiring even higher direct mass precision, you may also consider our Coriolis Flow Meters.
Built for longevity, the meter utilizes an all-welded SuperModule™ design that ensures industry-leading accuracy even in harsh environments. It supports multiple communication protocols, including WirelessHART®, which delivers over 99% data reliability while eliminating the high cost of complex wiring. The SmartPower™ module provides up to 10 years of maintenance-free operation, allowing for field replacement without removing the transmitter.
The Rosemount 3051SFA provides comprehensive advanced diagnostics, including Process Intelligence, Loop Integrity, and Plugged Impulse Line detection, to identify abnormal process conditions and electrical issues before they impact operations. For high-risk applications, the system is SIL 2/3 certified to IEC 61508 by an independent third party. Each unit arrives fully configured, leak-tested, and ready to install right out of the box for immediate deployment.
| Feature | Specification Details |
| Accuracy | ±0.04% of reading (Ultra for Flow class) |
| Warranty | Up to 15-year limited warranty |
| Line Size | 2 to 96 in. (50 to 2440 mm) |
| Communication | 4-20 mA HART®, WirelessHART®, FOUNDATION™ Fieldbus |
| Rangedown | Up to 200:1 (14:1 flow turndown) |
| Safety Certification | SIL 2/3 certified to IEC 61508 |
| Measurement Range | Up to 1000 inH2O differential; 3626 psia/psig static |
Q: How does the Rosemount 3051SFA contribute to energy savings?
A: Its patented T-shaped sensor is designed to maintain a small profile in the pipe, which reduces permanent pressure loss and increases overall energy efficiency.
Q: Can this meter provide mass flow measurements?
A: Yes, the 3051SFA is engineered with built-in flow calculations that allow it to report fully-compensated mass flow directly.
Q: What are the benefits of the integrated thermowell?
A: The integrated thermowell enables the sensor to obtain both flow and temperature measurements via a single pipe penetration, reducing installation complexity and potential leak points.
Q: What is the expected battery life for wireless models?
A: The SmartPower™ module provides up to 10 years of maintenance-free operation and is field-replaceable without removing the transmitter.
Q: Does Hanyu Zhilian offer complementary level sensors for tank farms?
A: Absolutely. For complete tank automation, we recommend our FMR52 Radar Level Transmitters to work alongside your flow network.
