Yokogawa Rotamass Nano Coriolis Mass Flow Meter
Executive Summary: The Yokogawa Rotamass Nano Coriolis Mass Flow Meter is a specialized dual-bent tube micro-flow instrument engineered for high-precision liquid and gas dosing, chemical injection skids, and pilot plants. Featuring a liquid mass flow accuracy of ±0.1%, pressure resistance scaling up to 460 bar (6672 psi), and SIL 2/3 safety certifications, it eliminates zero-point drift in severe industrial environments. This technical guide covers engineering specifications, competitive benchmarks, sizing decision trees, pros & cons, and procurement sourcing frameworks.
⚡ Fast Answer: What is the Yokogawa Rotamass Nano Coriolis Mass Flow Meter?
The Yokogawa Rotamass Nano Coriolis Mass Flow Meter is the market's smallest dual-bent tube Coriolis meter engineered specifically for micro-flow process loops (DN15 to DN40). Unlike single-tube meters prone to thermal stress and mechanical vibration, the Rotamass Nano utilizes a balanced dual-tube geometry to deliver ultra-stable zero-point performance (±0.1% liquid accuracy, ±0.5% gas accuracy). Powered by the Total Insight (TI) electronics platform, it provides inline density tracking, fluid viscosity calculations, and SIL 2/3 functional safety for critical dosing systems.
1. Technical Specifications for Yokogawa Rotamass Nano Coriolis Mass Flow Meter
The Yokogawa Rotamass Nano combines heavy-wall sensor pressure ratings with Total Insight (TI) electronics. Review the full engineering specification matrix below:
| Performance Parameter | Yokogawa Rotamass Nano Standard Specification |
|---|---|
| Liquid Mass Flow Accuracy | ±0.1% of rate (Special high-precision batching options available) |
| Gas Mass Flow Accuracy | ±0.50% of rate (High-pressure hydrogen and gas injection dosing) |
| Liquid Density Precision | ±0.5 g/l (±0.0005 g/cm³) for real-time fluid concentration tracking |
| Operating Temperature Range | -50°C to +260°C (-58°F to +500°F) continuous process fluid temperature |
| Maximum Pressure Rating | Standard 285 bar; Heavy-wall specialty options scale up to 460 bar (6672 psi) |
| Nominal Line Sizes | DN15 to DN40 (1/4" to 1-1/2" process connection diameters) |
| Wetted Sensor Metallurgy | Alloy C-22 (2.4602) / 316L Stainless Steel (1.4404) |
| Safety & Fiscal Compliance | SIL 2 Certified (SIL 3 Redundant), NTEP Custody Transfer, ATEX, IECEx, FM |
2. Micro-Flow Mass Flow Meter Benchmarking Comparison Table
Selecting a low-flow meter? Here is how the Yokogawa Rotamass Nano Coriolis Mass Flow Meter compares against single-tube Coriolis meters and thermal mass flow alternatives:
| Feature / Technical Metric | Yokogawa Rotamass Nano | Standard Single-Tube Coriolis Meter | Thermal Mass Flow Meter |
|---|---|---|---|
| Measuring Tube Geometry | Dual-Bent Tube (Balanced) | Single Straight / Bent Tube | Thermal Sensor Probe |
| Zero-Point Stability | Ultra-High (Vibration immune) | Moderate / High Drift Risk | N/A (Gas composition sensitive) |
| Liquid Accuracy Rating | ±0.1% of rate | ±0.2% to ±0.5% | Poor for liquids (±1.0%+) |
| Pressure Limit Rating | Up to 460 bar | Typically <100 bar | Up to 200 bar |
| Direct Density Measurement | Yes (±0.5 g/l) | Yes (±2.0 g/l) | No (Inferred volumetric only) |
3. Yokogawa Rotamass Nano Pros, Limitations & Recommended Use
An objective engineering assessment helps determine whether the Yokogawa Rotamass Nano fits your exact process loop parameters:
✅ Engineering Pros (Key Advantages)
- Vibration Isolation: Dual-bent tube mechanics isolate sensor pick-up coils from plant noise and pump pulsations.
- Extreme Pressure Rating: Tested up to 460 bar, making it ideal for offshore chemical injection and hydrogen fueling skids.
- Multi-Variable Telemetry: Measures mass flow, volume flow, fluid density, process temperature, and concentration simultaneously.
- SIL 2 Functional Safety: Full SIL 2 compliance with integrated Total Insight self-diagnostics and health logs.
❌ Engineering Limitations (Cons)
- Line Size Ceiling: Capped at DN40 (1-1/2") nominal sizes; not engineered for bulk transmission lines (Use Yokogawa Rotamass Supreme instead).
- Higher Initial Capital Cost: Premium dual-tube construction incurs higher upfront CapEx than standard turbine or thermal meters.
- Pressure Drop at Peak Rates: Small inner tube geometries require careful sizing calculations to prevent excessive line pressure drop.
🎯 Ideal Application Profile: Strongly recommended for subsea chemical injection skids (methanol/glycol), catalyst dosing loops, pilot-scale laboratory reactors, semiconductor vapor deposition, and high-pressure gas allocation networks.
4. Engineering Decision Tree for Yokogawa Rotamass Coriolis Series Selection
Follow this technical decision path to verify if the Yokogawa Rotamass Nano is the correct model for your plant specifications:
START FLOW METER MODEL SELECTION
│
├── What is your process pipeline nominal diameter?
│ ├── DN15 to DN40 (1/4" to 1-1/2") ──────► [PROCEED TO FLOW RATE]
│ ├── DN50 to DN125 (2" to 5") ───────────► SELECT: Yokogawa Rotamass Prime or Supreme
│ └── DN150+ (6" and larger) ─────────────► SELECT: Yokogawa Rotamass Giga
│
├── Is your process flow requirement a low/micro-flow dosing loop?
│ ├── YES (Micro-flow / Chemical Dosing / Lab Scale) ──► [CHECK PRESSURE LIMIT]
│ └── NO (Standard general liquid pipeline) ─────────► SELECT: Yokogawa Rotamass Prime
│
├── What is your operational process pressure limit?
│ ├── Up to 285 bar or up to 460 bar ─────────────────► 🟢 BEST SELECTION: Yokogawa Rotamass Nano
│ └── Extreme High Pressure (>500 bar) ──────────────► SELECT: Yokogawa Rotamass Intense
│
└── Do you require sanitary/hygienic 3-A certificates?
├── YES ─────────────────────────────────────────────► SELECT: Yokogawa Rotamass Hygienic
└── NO ──────────────────────────────────────────────► 🟢 FINAL CONFIRMATION: Yokogawa Rotamass Nano
5. Yokogawa Rotamass Nano Plant Deployments & Applications
-
Chemical & Catalyst Dosing Loops
Precision chemical injection skids, pilot-plant reactors, and low-rate additive metering validation loops.
-
Offshore Chemical Injection Skids
High-pressure subsea methanol and glycol injection where zero-point stability prevents costly chemical waste.
-
High-Tech Coating & Vapor CVD
Semiconductor vacuum CVD liquid precursor delivery, automated industrial paint lines, and metrology calibration benches.
6. Field Engineering Replacement Checklist for Yokogawa Rotamass Nano Sourcing
When replacing legacy flow instruments (e.g., legacy Yokogawa, Micro Motion, or Endress+Hauser Promass) with a new Yokogawa Rotamass Nano, verify these 5 field parameters before issuing your procurement order:
- [ ] Flange Face-to-Face Dimensions & Pressure Rating: Confirm process flange patterns (ASME Class 150/300/600/900 or EN PN40/PN100) match existing piping. High-pressure options (>285 bar) require specific Autoclave or NPT threaded connection codes.
- [ ] Static Line Pressure Drop Calculations: Because micro-flow dual-bent tubes feature compact internal diameters, execute a sizing fluid sheet to ensure line pressure drop remains within pump operational limits.
- [ ] Digital Field Bus Protocol Compatibility: Verify that Total Insight transmitter options (RCCT34 or RCCT38) align with your DCS controller interface (HART 7, FOUNDATION Fieldbus, Modbus RTU, or PROFINET).
- [ ] Hazardous Area Approval Code Matching: Ensure explosion-proof certificates (ATEX, IECEx, FM, INMETRO) strictly match your facility's hazardous area classification (Zone 1 / Zone 0 / Class I Div 1).
- [ ] Wetted Material Compatibility: For aggressive acids or sour gas, select Alloy C-22 wetted metallurgy and explicitly request EN 10204 3.1 material test certificates upon RFQ submission.
7. Yokogawa Rotamass Nano Technical & Procurement FAQ
Q: Why is the dual-bent tube design critical for Yokogawa Rotamass Nano micro-flow meters?
A: Single-tube meters suffer severely from ambient temperature shifts and pipe stresses, causing zero-point drift. The Yokogawa Rotamass Nano's dual-bent design creates a closed, balanced internal tuning fork loop that ignores outside plant vibration, locking in high accuracy even at fractional micro-flow boundaries.
Q: Is the Yokogawa Rotamass Nano approved for high-pressure gas dosing applications?
A: Yes. The meter is thoroughly calibrated for low-density gas, high-pressure hydrogen/steam, and unmixable liquid-gas mixtures. It handles fluid process temperatures from -50°C up to +260°C with zero degradation in signal precision.
Q: What is the lead time when sourcing Yokogawa Rotamass Nano from Hanyu Zhilian International?
A: As a specialized international industrial automation supplier, Hanyu Zhilian International bypasses standard 12-16 week manufacturer backlogs. We deliver genuine Yokogawa hardware in an accelerated 4 to 6 weeks lead time, complete with EN 10204 3.1 material certificates and direct 2-hour formal RFQ quotes.
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