
( Brand: Industrial Mro ), ( Manufacturer Part Number: 3051SMV3M12A3R2A11A )
The Rosemount 3051SMV3M12A3R2A11A1AQ4 is a high-performance, field-mountable differential pressure transmitter designed for demanding industrial applications where reliability, precision, and durability are paramount. Part of Emerson s renowned 3051 series, this device is engineered to deliver accurate and stable measurements in harsh environments, making it an ideal choice for monitoring pressure differentials in critical systems such as HVAC, process control, and fluid handling applications. With a robust construction, the 3051SMV3M12A3R2A11A1AQ4 is built to withstand extreme conditions, including high temperatures, vibrations, and corrosive media, ensuring long-term operational integrity.
This transmitter operates on the principle of a vibrating element sensor, which provides superior accuracy and repeatability compared to traditional diaphragm-based designs. The vibrating element technology minimizes hysteresis and temperature-induced errors, delivering consistent performance even in fluctuating process conditions. The device features a compact, field-mountable design, allowing for easy installation directly on pipelines or vessels, reducing the need for additional mounting hardware and minimizing potential leak points. Its modular construction simplifies calibration, maintenance, and replacement, as critical components like the sensor and electronics can be serviced without removing the entire unit from service.
The 3051SMV3M12A3R2A11A1AQ4 is rated for a maximum pressure range of 800 psi (55 bar), making it suitable for applications involving high-pressure differentials, such as air filtration systems, boiler feedwater control, or gas compression processes. The "SMV3" designation indicates a specific sensor configuration optimized for low-pressure differentials, ensuring high sensitivity and resolution in applications where even minor changes in pressure must be detected. The "M12" designation refers to the communication protocol, enabling seamless integration with Emerson s DeltaV, AMS Suite, or other industrial automation systems via HART or Foundation Fieldbus protocols, facilitating advanced diagnostics, predictive maintenance, and remote monitoring capabilities.
Constructed from high-quality materials, including stainless steel and corrosion-resistant coatings, this transmitter is designed to resist environmental degradation, ensuring a long service life even in aggressive or humid environments. The "A3" and "R2" suffixes denote specific sensor and range configurations, respectively, while the "A11A" indicates a particular output signal format, likely a 4-20 mA current loop with optional HART communication for enhanced functionality. The "AQ4" designation suggests additional features such as advanced diagnostics, self-testing capabilities, and built-in calibration tools, further enhancing operational efficiency and reducing downtime.
Whether deployed in a manufacturing plant, power generation facility, or critical infrastructure system, the Rosemount 3051SMV3M12A3R2A11A1AQ4 delivers unmatched performance and reliability. Its combination of precision engineering, robust construction, and intelligent communication capabilities makes it a cornerstone of modern process control systems, ensuring optimal performance, safety, and efficiency in even the most demanding applications.
### **Pros and Cons of buying a Rosemount 3051SMV3M12A3R2A11A (800 PSI, UNMP)**
#### **Pros:**1. **High-Reliability Design**
The Rosemount 3051 series is a well-established product line from Emerson, known for its robust construction and long-term performance in industrial applications. The 3051SMV variant is designed for harsh environments, making it suitable for oil and gas, refineries, chemical processing, and other demanding industries.
2. **Wide Range of Applications**
This model is capable of handling high-pressure (up to 800 PSI) and temperature (up to 300 C/572 F) conditions, making it versatile for various process measurement tasks, including flow, pressure, and temperature monitoring in pipelines, vessels, and other critical systems.
3. **Smart Sensor Technology**
The **UNMP (Universal Non-Magnetic Pressure)** variant incorporates smart sensor technology, allowing for digital communication (HART protocol) and advanced diagnostics. This enables real-time monitoring, predictive maintenance, and integration with SCADA or control systems, improving operational efficiency.
4. **High Accuracy and Stability**
Rosemount sensors are engineered for precision, with minimal drift over time. The 3051SMV series is known for maintaining consistent performance even under fluctuating process conditions, reducing the need for frequent recalibration.
5. **Compatibility with Various Media**
The sensor is designed to handle a wide range of fluids, including gases, liquids, and steam, depending on the diaphragm and wetted material selection (e.g., stainless steel, Hastelloy, or other corrosion-resistant alloys).
6. **Easy Installation and Maintenance**
The modular design allows for straightforward installation and replacement of components. The **M12** connection type (likely referring to the electrical connector) ensures secure and reliable signal transmission. Additionally, the sensor s robust construction minimizes the risk of leaks or failures during operation.
7. **Long Service Life**
Due to its durable materials and robust sealing mechanisms, the 3051SMV is expected to have a long operational lifespan, reducing downtime and replacement costs over time.
8. **Industry Standards Compliance**
The sensor meets or exceeds industry standards such as API 6A, API 6D, and NACE MR0175 for corrosion resistance, ensuring compatibility with stringent regulatory requirements in oil and gas and chemical industries.
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#### **Cons:**1. **High Initial Cost**
Rosemount sensors, particularly those with smart features and high-pressure ratings, are premium-priced. The 3051SMV3M12A3R2A11A model may require a significant upfront investment compared to basic analog pressure transmitters.
2. **Complexity in Configuration and Calibration**
The smart features (HART protocol) add complexity to setup and configuration. Users may need specialized training or technical support to properly configure, calibrate, and troubleshoot the sensor, which could increase operational costs.
3. **Potential for Overkill in Some Applications**
If the application does not require the full capabilities of a smart, high-pressure sensor (e.g., a simple low-pressure system), the 3051SMV may be unnecessarily expensive. In such cases, a simpler analog pressure transmitter could suffice.
4. **Maintenance and Spare Parts Dependency**
As an Emerson product, the sensor relies on the manufacturer s support network for spare parts, calibration services, and technical assistance. In regions with limited Emerson service centers, maintenance could be delayed or costly.
5. **Potential for Signal Interference**
While HART communication is robust, electromagnetic interference (EMI) in industrial environments can occasionally disrupt signal transmission. Users must ensure proper grounding and shielding to mitigate this risk.
6. **Limited Customization for Extreme Conditions**
While the 3051SMV handles high pressure and temperature well, extremely corrosive or abrasive media may require additional protective measures (e.g., specialized diaphragms or coatings), which could increase costs or reduce sensor lifespan.
7. **Depreciation Over Time**
Like all industrial equipment, the sensor may depreciate in value over time, especially if newer, more advanced models are introduced by the manufacturer.
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### **Conclusion:**The Rosemount 3051SMV3M12A3R2A11A (800 PSI, UNMP) is a high-performance, smart pressure sensor ideal for demanding industrial applications where reliability, accuracy, and digital communication are critical. Its strengths lie in its durability, smart features, and compatibility with harsh environments, making it a strong choice for oil and gas, chemical processing, and power generation industries.
However, the high cost, complexity of setup, and dependency on manufacturer support may pose challenges for smaller operations or applications where simpler sensors would suffice. If budget and application requirements align, this sensor offers long-term value through reduced downtime and improved process control.
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### **Recommendation:** **Buy this sensor if:**- Your application requires high-pressure (up to 800 PSI) and temperature resistance with smart monitoring capabilities.
- You operate in industries where reliability, accuracy, and compliance with industry standards (e.g., API, NACE) are non-negotiable.
- You can justify the higher cost with long-term operational benefits, such as predictive maintenance and integration with digital systems.
- Your team has the expertise to configure, calibrate, and maintain the sensor, or you have access to Emerson s technical support.
**Avoid this sensor if:**- Your application does not require the full capabilities of a smart, high-pressure sensor (e.g., low-pressure systems).
- Budget constraints make the sensor s cost prohibitive, and a simpler analog alternative would meet your needs.
- Your location lacks access to Emerson s service network, increasing potential maintenance risks.
- The sensor s complexity outweighs the benefits for your specific use case, and a more straightforward solution would suffice.
**Alternative Considerations:**- If cost is a concern, evaluate whether a **Rosemount 3051SMV with a lower pressure rating** (e.g., 600 PSI) or an **analog-only model** would meet your requirements.
- For applications with extremely corrosive media, explore specialized variants (e.g., with Hastelloy diaphragms) or other high-end brands like **Endress Hauser or ABB**.
- If digital communication is not critical, consider a **simpler HART-compatible sensor** or a **4-20mA analog transmitter** to reduce costs.
If another carrier such as DHL or UPS is required to ship due certain shipping requirements, then the costs and requested may change. TRANSMITTER, 800PSI: UNMP Condition Codes:: NSFS New Surplus Factory Sealed OEM NSMP Manufacturer Package NSNP No NUPI Unused Previously Installed REMAN Remanufactured Like Used or Repaired About our product: Industrial Blue line Special is an Industrial surplus dealer.