The Micro Motion R025S (DN6) is a 1/4-inch Coriolis meter designed to deliver the precision of mass flow measurement to micro-flow applications where space and budget are key considerations. Built with 316L Stainless Steel, this sensor provides a repeatable and reliable measurement in a compact, self-draining package.
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| Feature | Performance Data |
| Nominal Line Size | 1/4 Inch (DN6) |
| Wetted Material | 316L Stainless Steel |
| Mass Flow Accuracy (Liq) | Standard: ±0.50% |
| Liquid Repeatability | ±0.25% of rate |
| Max. Working Pressure | 1,450 psig (100 barg) |
| Density Accuracy (Liq) | ±0.01 $g/cm^3$ (Standard) |
| Gas Mass Flow Accuracy | ±0.75% of rate |
| Approvals | ATEX, IECEx, NEPSI, CSA |
Micro-Flow Precision: Specially sized for 1/4-inch lines, ensuring high-fidelity measurement even at very low flow rates where larger meters lose sensitivity.
Compact & Drainable Geometry: Its small footprint allows for easy integration into compact dosing skids or laboratory setups. The self-draining design prevents fluid entrapment, making it easier to purge lines between batches.
Unmatched Reliability: With no moving parts to clog, wear, or calibrate, the R025S provides a significant maintenance advantage over mechanical small-flow meters like gear or piston meters.
Cost-Efficient Integration: Features an integral transmitter option, providing a "flow-variable-only" architecture that reduces hardware costs while focusing on essential process data.
Hazardous Area Ready: Fully certified with global approvals (ATEX, IECEx, CSA), ensuring the R025S can be safely deployed in Class 1 Div 1/Zone 1 environments.
Versatile Fluid Compatibility: The 316L Stainless Steel construction is compatible with a vast range of industrial liquids and gases, from water and solvents to light chemicals.
Flexible Transmitter Options: Pair the sensor with a ruggedized housing and optional Local Operator Interface (LOI) for easy on-site adjustments.
Standard Communications: Supports HART and Modbus protocols, allowing for simple digital integration into your existing control architecture.
Rugged Ingress Protection: Rated for IP66/67, ensuring the meter operates reliably in wash-down areas or dusty industrial settings.
The Challenge: A specialty chemical plant needed to dose expensive additives into a 1/4-inch process line. Their existing rotameters were prone to operator error and could not provide mass flow data for inventory tracking.
The Hanyu Solution: The plant installed the Micro Motion R025S from
The Result: The R025S provided automated, digital mass flow data with ±0.5% accuracy, eliminating the need for manual readings.
The Impact: Product consistency improved immediately, and the plant reduced additive waste by 10%, leading to a full return on investment within 4 months.
Q: Is the R025S suitable for laboratory research?
A: Yes. Its 1/4-inch size and high repeatability make it perfect for pilot plants and laboratory research where small-scale flow accuracy is critical.
Q: Can the R025S handle corrosive chemicals?
A: 316L Stainless Steel is highly versatile. However, for extremely aggressive acids (like concentrated HCl or H2SO4), we recommend upgrading to the Nickel Alloy C22 version found in the F-Series or ELITE Series.
Q: Does it measure density and temperature?
A: Absolutely. Like all Micro Motion Coriolis meters, the R025S is multivariable, providing mass flow, volume flow, temperature, and density (±0.01 $g/cm^3$) from a single device.
