ROSEMOUNT ANALYTICAL Smart Pressure Transmitter 150 3051TG2A2B21A

( Brand: Rosemount Analytical ), ( Manufacturer Part Number: TG2A2B21A ), ( Part Type: Pressure ), ( Country Of Origin: United States )

Review ROSEMOUNT ANALYTICAL 3051 Smart Pressure Transmitter 150

The Rosemount Analytical **3051TG2A2B21A** is a high-performance, smart pressure transmitter designed to deliver precise, reliable, and field-configurable measurements in demanding industrial and process control applications. Part of Emerson s renowned **3051 Series**, this instrument combines advanced technology with robust construction to ensure accurate pressure monitoring across a wide range of industries, including oil and gas, chemical processing, power generation, and water treatment. Engineered with a **3000 psi (20.7 MPa) full-scale range**, the **3051TG2A2B21A** is specifically configured for **150 psi (1.03 bar) full-scale measurement**, making it ideal for applications requiring fine-tuned detection of low to moderate pressure variations while maintaining exceptional durability.

At its core, the **3051TG2A2B21A** features a **HART -enabled smart sensor**, allowing for seamless integration with modern SCADA systems, PLCs, and digital control networks. This capability enables real-time diagnostics, remote calibration, and predictive maintenance, reducing downtime and enhancing operational efficiency. The transmitter s **HART 7 communication protocol** facilitates bidirectional data exchange, enabling engineers to monitor sensor health, adjust setpoints, and troubleshoot issues without physical access to the field device. Additionally, the **Fieldbus Foundation H1** compatibility ensures seamless interoperability with other industrial automation systems, making it a versatile choice for both legacy and cutting-edge control architectures.

The **TG2A2B21A** is equipped with a **titanium diaphragm seal**, which provides superior corrosion resistance and extends the device s lifespan in harsh environments, such as those exposed to aggressive chemicals, seawater, or high-temperature fluids. This seal design also minimizes the risk of contamination, ensuring measurement integrity even in demanding fluid conditions. The transmitter s **stainless steel housing** and **IP66-rated enclosure** offer robust protection against dust, moisture, and mechanical shock, making it suitable for outdoor or unprotected installations. For added safety and reliability, the device incorporates a **fail-safe design**, ensuring consistent performance even in the event of sensor failure or power loss.

One of the standout features of the **3051 Series** is its **modular and configurable architecture**, allowing users to tailor the transmitter to specific application requirements. The **TG2A2B21A** includes a **2-wire 4 20 mA output**, a standard industry interface that simplifies wiring and reduces installation complexity. The **A2B** designation indicates HART communication capability, while the **B21A** suffix denotes a specific range and configuration tailored for low-pressure applications. This flexibility, combined with the transmitter s **wide temperature range of -40 C to 85 C (-40 F to 185 F)**, ensures reliable operation in diverse environmental conditions, from cold storage facilities to high-temperature process lines.

Beyond its technical specifications, the **3051TG2A2B21A** is engineered for ease of installation and maintenance. Its **quick-connect fittings** and **pre-wired design** streamline field installation, reducing labor costs and minimizing installation errors. The transmitter s **self-diagnostic capabilities** provide real-time feedback on sensor performance, alerting operators to potential issues before they escalate into costly failures. Furthermore, Emerson s **Ams Suite** software offers a comprehensive platform for device configuration, calibration, and monitoring, ensuring that the **3051TG2A2B21A** remains optimized for peak performance throughout its operational lifecycle.

In summary, the **Rosemount Analytical 3051TG2A2B21A** is a high-precision, smart pressure transmitter designed to deliver uncompromising accuracy, durability, and connectivity in industrial environments. With its **150 psi measurement range**, **HART and Fieldbus compatibility**, **corrosion-resistant diaphragm seal**, and **fail-safe design**, this device is a cornerstone of modern process control systems. Whether deployed in critical infrastructure, chemical processing plants, or energy production facilities, the **3051TG2A2B21A** ensures reliable pressure monitoring, operational efficiency, and long-term cost savings.

### **Pros and Cons of buying a Rosemount Analytical TG2A2B21A (3051 Smart Pressure Transmitter, 150 Bar)**

#### **Pros**

1. **High Accuracy and Reliability**

The Rosemount TG2A series is known for its precision engineering, offering excellent accuracy ( 0.1% of reading) and repeatability. This makes it suitable for critical applications where consistent performance is essential.

2. **Smart Technology and Digital Communication**

As a "smart" transmitter, it supports HART (Highway Addressable Remote Transducer) communication, enabling advanced diagnostics, calibration, and integration with SCADA or DCS systems. This reduces maintenance downtime and improves system efficiency.

3. **Wide Measurement Range (0 150 Bar)**

The 150-bar range is versatile for industrial applications, including process control, hydraulic systems, and pneumatic testing. It can handle moderate to high-pressure environments without frequent recalibration.

4. **Durable Construction**

Rosemount products are built for harsh industrial conditions, featuring corrosion-resistant materials (such as stainless steel) and robust sealing to prevent leaks in aggressive environments.

5. **Easy Installation and Calibration**

The modular design simplifies field installation, and built-in diagnostics via HART reduce the need for manual adjustments. This lowers labor costs and improves system uptime.

6. **Compatibility with Rosemount Ecosystem**

It integrates seamlessly with other Rosemount instruments and Emerson s process control platforms, ensuring consistency in monitoring and control systems.

7. **Long-Term Stability**

With proper maintenance, Rosemount transmitters are known for their longevity, often lasting decades in stable industrial settings.

---

#### **Cons**

1. **Higher Upfront Cost**

Compared to generic or lower-end pressure transmitters, Rosemount devices are premium-priced. The initial investment may be prohibitive for small-scale or budget-constrained operations.

2. **Complexity for Non-Expert Users**

While HART communication offers advantages, it requires some technical knowledge to configure, troubleshoot, or integrate with control systems. Training may be necessary for operators.

3. **Potential for Overkill in Simple Applications**

If the application does not require advanced diagnostics or high precision (e.g., low-pressure or non-critical systems), a simpler, less expensive transmitter might suffice.

4. **Maintenance and Calibration Requirements**

Like all high-precision instruments, regular calibration and maintenance are needed to sustain accuracy. Neglecting this can lead to drift and reduced reliability.

5. **Limited Physical Durability in Extreme Conditions**

While robust, the TG2A may struggle in environments with extreme temperatures, vibration, or corrosive media beyond its specified limits (e.g., high humidity or chemical exposure).

6. **Dependency on Vendor Support**

As an Emerson/Rosemount product, repairs or replacements may require purchasing through authorized distributors, which could add logistical or cost challenges.

7. **Potential for Obsolescence**

Rosemount frequently updates its product lines, and older models (even recent ones) may eventually be phased out, requiring future upgrades or compatibility checks.

---

### **Conclusion**

The **Rosemount Analytical TG2A2B21A (3051 Smart Pressure Transmitter, 150 Bar)** is a high-quality, reliable choice for industrial applications requiring precision, smart diagnostics, and long-term stability. Its strengths lie in accuracy, integration capabilities, and durability, making it ideal for process control, hydraulic systems, and critical monitoring roles. However, its higher cost, technical complexity, and maintenance needs may not justify the investment for simpler or low-budget applications.

### **Recommendation**

- You need a **high-accuracy, smart transmitter** for critical process control or industrial automation.

- Your system already uses **Rosemount/HART-compatible devices**, ensuring seamless integration.

- You can justify the **long-term cost savings** from reduced downtime and improved diagnostics.

- The application involves **moderate to high-pressure environments** where reliability is paramount.

- Your budget is limited, and a **lower-cost generic transmitter** (e.g., from Omron, SMC, or local brands) meets your accuracy needs.

- The application is **non-critical** (e.g., low-pressure testing, non-industrial use), where simplicity and cost-effectiveness matter more.

- You lack **technical expertise** to configure or maintain HART-enabled devices, as simpler analog transmitters may be easier to use.

For most **industrial, process control, or hydraulic applications**, the TG2A2B21A is a strong recommendation due to its proven performance. However, always compare it with newer Rosemount models (e.g., the **3051TGA series**) or alternatives to ensure you re getting the best value for your specific use case.

Details:

Rosemount, 3051 Smart, TG2A2B21A, Pressure Transmitter, 030S1-2102-3122, 1/2 Sol TG2A2B21A.

part #: tg2a2b21a prices

• $425.00-$995.00

specifications pneumativalv:

• brand: Rosemount Analytical
• mpn: Tg2a2b21a
• part type: Pressure
• country of origin: United States

general pneumativalv:

• condition: Used
• Pump Flow Controllers > Flow Controllers Meters > Mass Flow Controllers

offer pneumativalv:

• started: February 20, 2026
• options: Ship-to-home
• best offers: True
• sold: 0
• quantity: 1
• availability: In Stock

returns pneumativalv:

• method: Money back
• paid by: Buyer
• policy: Returns Accepted
• time: 30 Days

payments pneumativalv:

• wallet: Apple-pay
• credit card: Visa
• other

seller pneumativalv:

• city: Chattanooga, Tennessee
• # reviews: 296
• rating: 100.0%

shipping pneumativalv:

• class: Standard, One-day, Expedited
• service: UPS Ground, UPS Next Day Air, UPS 2nd Day Air
• cost: $18.64
• transit: 3-6 Days
• carrier: UPS
• type: Calculated

Rosemount Analytical TG2A2B21A Is Similar To:

• 1151gp7 Rosemount New Smart Pressure (43.1% similar) If you change your mind may ship the unit back at expense. New Rosemount smart pressure transmitter 1151GP7 S22B1M1S1L4K5 with 1199HSB10ARFW22CAA50 diaphragm seal items were removed from surplus stock or working equipment...(September 25th, 2017)
• 1151gp7s22b1m1 Rosemount New Smart Pressure Transmitter (54.8% similar) Box opened for pictures. Free insured shipping ups ground. Brand new in factory box...(October 7th, 2018)
• 1700i17abmezzz Rosemount Micro Motion Transmitter (40.3% similar) Part: 1700I17ABMEZZZ prices...(March 21st, 2018)
• 23820-00 Rosemount Rose Mount Analytical (33.3% similar) New, rose mount Analytical kit BBX57...(November 20th, 2017)
• 3051cd2a02a1ah2m5 Rosemount New Hart Pressure (36.8% similar) Max WP: 3626 psi 250BAR. Buyer pays model: 3051CD2A02A1AH2M5. You are buying on one 1 new unused from old stock Rosemount hart co planar pressure transmitter. 03 shipping and handling shipped in 48 states. Larger items are shipped via FedEx ground. 316 stainless steel ss body. 4 CDC hart 4-20 ma. ...(January 4th, 2018)
• 3051cg5a22a1as1b4 Rosemount Nib Pressure Transmitter (50% similar) 5-55VDC supply voltage mounting hardware and quick installation guide included 20MA output. 2000 PSI max...(January 18th, 2018)
• 3051s Rosemount New Pressure Transmitter (51.7% similar) If you change your mind may ship the unit back at expense. New Rosemount 3051S pressure transmitter hart protocol 3051S2CG4A2F12A1AB1M5 items were removed from surplus stock or working equipment...(September 25th, 2017)
• 3051sal Rosemount Scalable Advanced Level Transmitter Flange New (43.1% similar) Have a, Rosemount Emerson salable advanced level transmitter 3051SAL. Flange DP0001-4015 S6B16. The complete configuration part number is as follows, . 316 316L RX20. Comes as shown in the pictures. Gasket material Thermos York, tn. Cal, to 153 in H2O, MP 275PSI 19. Has a metal tag with lit 30B. Box...(October 14th, 2018)
• 3051tg3a2b21ab4e5m5q4 Rosemount New 3051 Pressure (37.2% similar) I will do everything in my power to insure your satisfaction. To 800 psi new in factory box...(October 21st, 2017)
• 3095 Rosemount H145222 Smart Family (38.3% similar) It is untested and being sold as-is. This Rosemount smart family hart 3095 multi variable mass flow transmitter appears to be in good cosmetic condition with normal signs of wear and previous use. All offered products are sold as advertised, is and without warranty...(November 10th, 2017)
• 444tj1d1c2e5 Rosemount New Pressure Transmitter (48.8% similar) ...(December 7th, 2018)