The Micro Motion F025A (DN6) is a 1/4-inch Coriolis meter designed for engineers who refuse to compromise on accuracy in low-flow applications. Constructed from 316L Stainless Steel, this sensor is specifically engineered to handle high-temperature processes while providing exceptionally reliable mass flow, volume flow, and density measurement.
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| Feature | Performance Data |
| Nominal Line Size | 1/4 Inch (DN6) |
| Wetted Material | 316L Stainless Steel (Nickel Alloy C22 optional) |
| Mass Flow Accuracy (Liq) | Standard: ±0.20% |
| Mass Flow Repeatability | ±0.050% of rate |
| Density Accuracy (Liq) | Standard: ±0.002 $g/cm^3$ |
| Max. Working Pressure | 1,450 psig (100 barg) |
| Process Temp. Range | Up to 662°F (350°C) |
| Safety Certifications | ATEX, IECEx, NEPSI, CSA, SIL Certified |
Compact Drainable Design: The F025A’s unique geometry ensures it is fully self-draining when installed vertically. This minimizes product entrapment and facilitates easy cleaning—essential for batch processes and high-purity chemical lines.
High-Temperature Stability: Engineered to maintain accuracy in heat-intensive applications, the F025A handles temperatures up to 350°C, providing a stable measurement where other small-bore meters drift.
Smart Meter Verification (SMV): Eliminate the need to pull the meter from the line. SMV allows you to verify the structural and electronic health of your F025A in real-time, ensuring continuous measurement integrity.
Custody Transfer Approved: Certified by global metrology bodies (MID OIML R 117, NTEP, Measurement Canada), the F025A is a trusted solution for legal-for-trade micro-flow applications.
Advanced MVD Signal Processing: Powered by Multivariable Digital (MVD) technology, this sensor offers the fastest response rates in its class, ensuring accurate batching and superior process control.
Extensive Diagnostics: Includes an on-board historian and logging features, allowing you to track process upsets and monitor meter performance over time for proactive maintenance.
Multivariable Output: Directly measures mass flow, volume flow, density, and temperature from a single DN6 connection.
Universal Connectivity: Seamlessly pairs with Emerson’s 5700, 2400, or 1700 transmitters, supporting HART, Modbus, PROFINET, and EtherNet/IP.
Hazardous Area Ready: Fully certified for use in Class 1 Div 1 and Div 2 environments, as well as ATEX/IECEx Zone 0 and Zone 1.
The Challenge: A pilot plant needed to dose an expensive catalyst at a 1/4-inch scale. The process operated at 180°C, and any residual fluid in the meter led to clogs between runs.
The Hanyu Solution: The plant installed the Micro Motion F025A from
The Result: The 316L SS construction handled the high temperature effortlessly, and the ±0.10% accuracy ensured precise dosing.
The Impact: The drainable design eliminated clogging issues, and catalyst waste was reduced by 18%, providing a full ROI in less than six months.
Q: Is the F025A suitable for gas measurement?
A: Yes. The F025A provides a gas mass flow accuracy of ±0.5%, making it excellent for high-value specialty gas dosing and industrial gas research.
Q: Can I get the F025A in Hastelloy?
A: Yes. While 316L Stainless Steel is standard, the F025A is also available in Nickel Alloy C22 for applications involving highly corrosive fluids like acids or chlorides.
Q: Why choose the F-Series over the ELITE series for 1/4" lines?
A: While ELITE offers the highest absolute accuracy, the F-Series (F025A) is often preferred when a compact, self-draining sensor is the primary requirement for specific skid or piping layouts.
