Emerson Rosemount 2051TG is a Gauge Pressure transmitter developed on Emerson’s Coplanar™ platform. It measures process pressure with high accuracy by referencing atmospheric pressure and, thanks to its compact design, provides a reliable solution for standard process applications, OEM machines and EPC projects.
Key advantages: ✔ High measurement accuracy ✔ Long‑term measurement stability ✔ Compact Coplanar™ design ✔ Easy installation and commissioning ✔ Low maintenance requirement ✔ HART®, FOUNDATION™ Fieldbus and PROFIBUS PA communication options ✔ SIL‑compliant configuration options ✔ Investment cost advantage in EPC, OEM and maintenance projects
Compared to the Rosemount 3051TG model, the 2051TG offers a more economical structure, making it a strong alternative for users who want to optimize total investment cost without compromising process reliability.
| Parameter | Description |
|---|---|
| Model | 2051TG – Gauge Pressure Transmitter |
| Measurement Type | Relative pressure referenced to atmosphere |
| Measurement Ranges | Low, medium and high pressure ranges |
| Process Connections | ½" NPT, ANSI Flange, DIN Flange |
| Output | 4–20 mA HART®, FOUNDATION™ Fieldbus, PROFIBUS PA |
| Housing | Aluminum or Stainless Steel |
| Wetted Parts | 316L SS, Hastelloy C, Monel, Tantalum |
| Protection | IP66 / NEMA 4X |
| Certifications | ATEX, IECEx, FM, CSA, SIL options |
Note: Communication protocols, material options and certifications vary depending on the selected model code.
2051TG1A02A1AB4 • Gauge Pressure • ½" NPT process connection • 316L stainless steel diaphragm • 4–20 mA HART® • IP66 protection
2051TG3A05A1AB4 • Gauge Pressure • 1" ANSI Flange • 316L SS • 4–20 mA HART® • NEMA 4X / IP66
2051TG4A22F1AB4 • Gauge Pressure • FOUNDATION™ Fieldbus • 2" DIN Flange • Aluminum Housing
2051TG2A2B21P1AB4 • Gauge Pressure • Hastelloy C diaphragm • PROFIBUS PA • Stainless Steel Housing
📑 Product codes must always be verified against Emerson datasheet documents and final configuration determined according to process conditions.
The piezoresistive sensor cell of the 2051TG detects process pressure referenced to atmospheric pressure.
The electronic measurement cell converts this signal into high‑accuracy digital data.
The internal microprocessor performs:
temperature compensation,
linearization,
sensor correction
to maintain long‑term measurement stability.
The measurement is then transmitted via:
4–20 mA
HART®
FOUNDATION™ Fieldbus
PROFIBUS PA
to PLC, DCS or SCADA systems.
| Parameter | Feature |
|---|---|
| Measurement Type | Gauge Pressure |
| Output | 4–20 mA |
| Communication | HART®, FOUNDATION™ Fieldbus, PROFIBUS PA |
| Process Connections | NPT, ANSI, DIN |
| Wetted Parts | 316L SS, Hastelloy C, Monel, Tantalum |
| Housing | Aluminum / Stainless Steel |
| Protection | IP66 / NEMA 4X |
| Certifications | ATEX, IECEx, FM, CSA, SIL options |
⚡ Power Plants • Steam lines • Boiler systems • Pump outlets • Auxiliary process equipment
🛢️ Petrochemical and Refineries • Gas pressure • Liquid process lines • Tank pressure • Transfer lines
🧪 Chemical Industry • Reactor pressure • Chemical storage tanks • Corrosive processes
💧 Water and Wastewater • Pump stations • Filtration systems • Distribution lines • Pressure control points
🔧 OEM and Skid Systems • Package process equipment • Machine manufacturers • Compact automation systems
✔ Compact Coplanar™ design ✔ High long‑term stability ✔ Low Total Cost of Ownership (TCO) ✔ Digital communication support ✔ SIL‑compliant options ✔ Global certification compliance ✔ Easy maintenance and calibration ✔ Global sourcing and fast RFQ support
Recommended checks during installation:
Zero Trim
Sensor Trim
Loop Test
HART® communication verification
Process connection check
Pressure sealing test
Analog output verification
| Problem | Possible Cause | Solution |
|---|---|---|
| Measurement drift | Calibration error | Apply Zero / Sensor Trim |
| Unstable signal | Vibration or process fluctuation | Check process connection |
| Communication error | HART® configuration | Verify configuration |
| No output | Power supply | Check power source |
What is the main difference between 2051TG and 3051TG? 3051TG offers higher performance, more advanced diagnostics and wider configuration options, while 2051TG is an economical and reliable solution for standard process applications.
Which communication protocols are supported? Standard: 4–20 mA HART®. Optional: FOUNDATION™ Fieldbus and PROFIBUS PA.
How long is the RFQ process? Yeşil Grup Enerji typically responds to most technical requests within 24–48 hours through its global sourcing network.
Yeşil Grup Enerji provides:
Model validation
Datasheet review
Technical configuration support
Cross‑reference analysis
Alternative product evaluation
Global sourcing
Fast RFQ management
EPC and international project support
📧 [email protected] 📞 +90 505 696 61 00 🌐 www.yesilgrupenerji.com
Emerson Rosemount 2051TG Gauge Pressure Transmitter combines the compact design of the Coplanar™ platform with high‑accuracy relative pressure measurement, delivering reliable and long‑lasting performance in power plants, petrochemical facilities, refineries, chemical industry, water & wastewater applications and OEM processes.
With wide process connection options, HART®, FOUNDATION™ Fieldbus and PROFIBUS PA communication protocols, international certification options and low Total Cost of Ownership (TCO), it is one of the preferred pressure transmitters for new plant investments, modernization projects and maintenance applications.
Yeşil Grup Enerji, without being an official Emerson distributor, supports Emerson Rosemount 2051TG with model validation, datasheet assistance, product configuration control, alternative product analysis (cross‑reference), application suitability evaluation, critical spare part management, global sourcing and fast RFQ management. Through its international supply network, it helps source products at competitive prices from reliable manufacturers and suppliers in Europe, America, Middle East, Africa and Asia, while offering flexible delivery options and engineering‑focused technical consultancy to determine the most suitable technical and commercial solution for your projects.