起源の場所:
シンガポール
ブランド名:
rosemount
モデル番号:
3051SFA
3051SFA Air Flow Measurement Instrument – Annubar Differential Pressure Flow Meter for Gases
The Rosemount 3051SFA is a high-performance air flow measurement solution that combines the precision of the Annubar® primary element with the reliability of the Rosemount 3051S pressure transmitter. Engineered for demanding industrial environments, this differential pressure flow meter delivers accurate, repeatable measurements of air and gas flow in large pipelines and duct systems. Its modular design simplifies installation and maintenance, while advanced diagnostics ensure long-term performance and process insight.
| Parameter | Rosemount 3051SFA | Yokogawa DPharp EJA115E | Emerson Micro Motion CMF025 | Siemens SITRANS MAG 5100W | Honeywell SmartLine SMV800 |
|---|---|---|---|---|---|
| Measurement Principle | Differential Pressure (Annubar) | Differential Pressure (DPharp) | Coriolis Mass Flow | Electromagnetic (for wet gas) | Multivariable DP + Temperature |
| Flow Range Ratio | Up to 200:1 | Up to 100:1 | N/A | N/A | Up to 100:1 |
| Accuracy (Gas) | ±0.75% of rate | ±0.2% of span | ±0.35% of rate | ±0.5% of rate | ±0.2% of rate |
| Pipe Size Range | 2–96 in (50–2440 mm) | Customizable | DN6 (¼ inch) | DN25–DN2000 | Customizable |
| Output Variables | DP, SP, Temp, Mass/Vol Flow, Energy | DP, SP, Temp, Compensated Flow | Mass Flow, Density, Temp, Vol Flow | Vol Flow, Conductivity | DP, SP, Temp, Mass/Vol Flow |
| Communication Protocols | HART®, WirelessHART®, Fieldbus | HART®, Fieldbus, Profibus | HART®, Modbus, Fieldbus | HART®, Profibus PA, Modbus, Ethernet | HART®, Modbus, Fieldbus |
| Certifications / Features | SIL 2/3, NACE, IEC 61508, 15-year warranty | Self-diagnostics, SIL compliant | Smart Meter Verification, ISO/IEC 17025 | IP68, custody transfer, battery option | SIL 2/3, Experion PKS integration |
Q1: What is the Rosemount 3051SFA?
A1: The Rosemount 3051SFA is an Annubar® differential pressure flow meter designed for accurate measurement of air and gas flow in industrial pipelines and duct systems.
Q2: How does the 3051SFA measure air flow?
A2: It uses the Annubar primary element to sense differential pressure across multiple ports, combined with a Rosemount pressure transmitter to calculate volumetric or mass flow.
Q3: What industries typically use the 3051SFA?
A3: Common applications include power generation (combustion air), HVAC and ventilation, compressed air monitoring, petrochemical refining, steel and metallurgy, and food & beverage processing.
Q4: What is the accuracy of the 3051SFA for air flow measurement?
A4: It provides up to ±0.75% of rate accuracy, with a turndown ratio of up to 200:1, making it suitable for variable air demand systems.
Q5: What pipe sizes can the 3051SFA handle?
A5: It supports a wide range of pipe diameters, from 2 inches (50 mm) up to 96 inches (2440 mm).
Q6: What communication protocols are available?
A6: The device supports 4–20 mA HART®, WirelessHART®, and FOUNDATION Fieldbus, ensuring seamless integration with modern control systems.
Q7: What are the key benefits compared to traditional orifice plates?
A7: The Annubar design minimizes permanent pressure loss, reduces installation costs, and provides multivariable measurement outputs (DP, SP, temperature, compensated flow).
Q8: Is the 3051SFA certified for safety-critical applications?
A8: Yes, it is SIL 2/3 compliant and meets IEC 61508 standards, making it suitable for safety instrumented systems.
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