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MICRO MOTION CMF300M361NUR Flow Sensor

Cmf300m361nur Micro Motion 3 Inch Mass Flow Sensor

( Brand: Micro Motion ), ( Manufacturer Part Number: CMF300M361NUR ), ( Part Type: Flow Sensor ), ( Country Of Origin: United States )

Review MICRO MOTION Inch Mass Flow Sensor

The **Micro Motion CMF300M361NUR Flow Sensor** is a high-performance, advanced mass flow meter designed for demanding industrial applications where precision, reliability, and durability are paramount. Engineered by Emerson s Micro Motion division, this Coriolis mass flow sensor leverages cutting-edge Coriolis technology to deliver unparalleled accuracy and repeatability across a wide range of fluid types, including liquids, gases, and steam. The **CMF300M361NUR** model is specifically tailored for challenging environments, featuring a robust **361NUR** process connection a **3-inch (76.2 mm) NPT male thread with a union nut and flange rating (NUR)** which ensures secure, leak-proof installation in high-pressure systems. This robust design accommodates pressures up to **6,000 psi (41.4 MPa)** and temperatures ranging from **-40 F to 600 F (-40 C to 315 C)**, making it ideal for extreme industrial conditions such as refineries, chemical processing plants, power generation facilities, and oil and gas operations.

What sets the CMF300 apart is its **dual-tube Coriolis design**, which enhances measurement stability by eliminating cross-sensitivity to temperature, pressure, and density variations. This architecture ensures that mass flow, density, and temperature are measured with exceptional precision, even in turbulent or variable flow conditions. The sensor s **high-frequency vibrating tubes** oscillate at a resonant frequency, allowing for real-time compensation of process variables, resulting in measurements accurate to within **0.1% of reading** under optimal conditions. Additionally, the **NUR connection** provides a quick-connect/disconnect capability, reducing downtime during maintenance and calibration while maintaining system integrity.

Beyond its technical prowess, the CMF300M361NUR is built for **long-term reliability**, featuring a **stainless steel (SS316L) construction** that resists corrosion, scaling, and wear, even in aggressive media like acids, hydrocarbons, or high-salinity solutions. Its **sealed electronic housing** protects internal components from harsh environments, while the **HART and Foundation fieldbus communication protocols** enable seamless integration with existing SCADA, DCS, or PLC systems. The sensor also supports **Modbus RTU and Profibus PA**, expanding its compatibility with diverse industrial networks. For applications requiring advanced diagnostics, the **Micro Motion Asset Health Manager (AHM)** provides predictive maintenance insights, monitoring tube wear, flow disturbances, and other operational parameters to preemptively address potential issues.

Whether deployed in **liquid batching, gas compression, steam tracing, or chemical metering**, the CMF300M361NUR delivers **real-time, high-fidelity mass flow data** that enhances process optimization, energy efficiency, and regulatory compliance. Its **zero moving parts** design eliminates wear-related failures, while its **wide turndown ratio (up to 100:1)** ensures consistent performance across varying flow rates. With Emerson s reputation for innovation and the Micro Motion brand s legacy of precision engineering, this flow sensor represents a **cornerstone technology** for industries where accuracy and dependability are non-negotiable.

### **Pros and Cons of buying a Micro Motion CMF300M361NUR Flow Sensor**

#### **Pros:**

1. **High Accuracy and Reliability** The CMF300 series is known for its advanced Coriolis mass flow measurement technology, which provides precise and consistent readings across a wide range of fluids, including gases, liquids, and steam. This makes it ideal for applications requiring strict process control, such as chemical, oil & gas, and pharmaceutical industries.

2. **Wide Measurement Range** The sensor is designed to handle high flow rates (up to 360 m /h for liquids and gases, depending on the model) and can operate across varying pressure and temperature conditions, making it versatile for different industrial applications.

3. **Durability and Robust Construction** Built with high-quality materials, including stainless steel and corrosion-resistant coatings, the CMF300 is designed for harsh environments, ensuring long-term reliability and minimal maintenance requirements.

4. **Compatibility with Digital Communication Protocols** The sensor supports industry-standard communication protocols such as HART, Foundation Fieldbus, and Profibus, allowing seamless integration with existing SCADA and automation systems. This enhances data collection, monitoring, and control capabilities.

5. **Low Maintenance Requirements** Coriolis flow meters are known for their lack of moving parts (other than the vibrating tube), which reduces wear and tear and extends the sensor s operational life. This translates to lower maintenance costs over time.

6. **Multi-Variable Measurement** In addition to mass flow, the CMF300 can measure density, temperature, and pressure, providing comprehensive process data in a single device. This reduces the need for additional sensors and simplifies system design.

7. **High-Pressure and High-Temperature Capability** The sensor can operate in extreme conditions, including pressures up to 420 bar and temperatures as high as 200 C (depending on the specific configuration), making it suitable for high-stress applications like refineries and power plants.

8. **Calibration Stability** Coriolis flow meters maintain their calibration over long periods without frequent recalibration, ensuring consistent performance even in demanding environments.

9. **Explosion-Proof and ATEX Certification** The sensor is designed to meet international safety standards (e.g., ATEX, IECEx), making it safe for use in hazardous areas such as refineries, petrochemical plants, and mining operations.

10. **Backward and Forward Flow Measurement** Unlike some flow sensors, the CMF300 can accurately measure flow in both directions, which is useful in applications where flow reversal occurs.

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#### **Cons:**

1. **High Initial Cost** Coriolis flow meters, including the CMF300, are significantly more expensive than traditional flow sensors such as turbine, ultrasonic, or orifice meters. The upfront investment may be a barrier for smaller businesses or applications where budget constraints are critical.

2. **Complex Installation and Calibration** Due to its advanced technology, the CMF300 requires careful installation, proper piping preparation (e.g., straight-run requirements), and professional calibration. Improper installation can lead to inaccurate readings or damage to the sensor.

3. **Limited Compatibility with Dirty or Abrasive Fluids** While the sensor is robust, it may require additional filters or pre-treatment systems when handling fluids with high particulate content or abrasive properties. This adds to the overall system cost and complexity.

4. **Pressure Drop Considerations** Coriolis flow meters introduce a slight pressure drop across the sensor, which may impact the efficiency of the system, particularly in low-pressure applications. This should be accounted for during system design.

5. **Size and Weight** The CMF300 is a larger and heavier device compared to some alternative flow sensors. This can pose challenges in space-constrained environments or retrofitting existing systems.

6. **Dependency on Power Supply** The sensor requires a stable power source for operation, and any power fluctuations or outages can disrupt measurements. This may necessitate backup power solutions in critical applications.

7. **Limited Availability of Spare Parts** As a specialized piece of equipment, finding replacement parts or technicians with expertise in Micro Motion sensors may be challenging in some regions, potentially leading to longer downtimes during repairs.

8. **Not Ideal for Low-Flow Applications** While the CMF300 excels in high-flow applications, its performance may degrade at very low flow rates, where other sensors (e.g., ultrasonic) might be more suitable.

9. **Training Requirements** Operators and maintenance personnel may need specialized training to properly use, calibrate, and troubleshoot the sensor, adding to the operational learning curve.

10. **Potential for Signal Noise in Turbulent Flow** In systems with significant turbulence or pulsating flow, the sensor may require additional damping or smoothing techniques to ensure accurate readings.

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### **Conclusion:**

The **Micro Motion CMF300M361NUR flow sensor** is a high-performance, reliable, and versatile instrument well-suited for industrial applications requiring precise mass flow measurement, density, temperature, and pressure data. Its advanced Coriolis technology, durability, and compatibility with digital communication protocols make it a top choice for critical processes in industries such as oil & gas, chemical, pharmaceutical, and power generation.

However, its **high cost, complex installation, and maintenance requirements** may not justify its use in all applications, particularly in budget-sensitive or low-flow scenarios. Businesses should carefully evaluate their specific needs such as flow range, fluid properties, environmental conditions, and budget constraints to determine whether the CMF300 is the optimal choice.

For applications where **accuracy, multi-variable measurement, and long-term reliability** are paramount, the CMF300 is an excellent investment. For simpler or cost-sensitive applications, alternative flow sensors (e.g., ultrasonic, turbine, or differential pressure meters) may offer a more balanced solution.

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### **Recommendation:** - **Buy the CMF300M361NUR if:**

- You require **high-accuracy mass flow measurement** in demanding industrial environments.

- Your application involves **multi-variable monitoring** (density, temperature, pressure) in a single device.

- You operate in **high-pressure, high-temperature, or hazardous areas** where robustness and safety certifications (ATEX) are critical.

- Your system can accommodate the **higher upfront cost** and **maintenance requirements** for long-term reliability.

- You need **seamless integration** with digital control systems (HART, Fieldbus, Profibus).

- **Consider Alternatives if:**

- Your budget is limited, and you can achieve acceptable accuracy with a **lower-cost flow sensor** (e.g., ultrasonic or turbine meter).

- Your application involves **low-flow rates** or **turbulent/abrasive fluids**, where the CMF300 may not perform optimally without additional pre-treatment.

- You lack **expertise in Coriolis technology**, making installation, calibration, and troubleshooting challenging.

- Your system has **strict space constraints**, and the CMF300 s size is impractical.

For most **high-stakes industrial processes**, the CMF300 remains a **strong recommendation** due to its unmatched precision and durability. However, a thorough cost-benefit analysis should be conducted to ensure it aligns with your operational and financial goals.

Details:

Qty: 1, Micro Motion CMF300M361NUR 3 Mass flow sensor. Condition: Used. This is for Micro Motion CMF300M361NUR 3 Mass flow sensor.Liquidating excess inventory, bargain price.

part #: cmf300m361nur price

  • $2216.50

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  • brand: Micro Motion
  • mpn: Cmf300m361nur
  • part type: Flow Sensor
  • country of origin: United States

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  • # reviews: 729
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  • Pump Flow Controllers > Flow Controllers Meters > Mass Flow Controllers
  • condition: Used

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  • quantity: 1
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  • availability: In Stock
  • started: March 4, 2026
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part type: flow sensor, country of origin: united states,
category: business & industrial > pump flow controllers > flow controllers meters > mass flow controllers, sku: 11892937686021881,
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