Emerson Rosemount 2051TA Absolute Pressure Transmitter is an intelligent pressure transmitter developed to measure absolute pressure independently of atmospheric pressure.
Absolute pressure measurement ensures high accuracy in vacuum systems, gas processes and applications where reference pressure is critical.
Rosemount 2051TA: ✔ High measurement accuracy ✔ Long-term stability ✔ Compact body design ✔ Low maintenance requirements ✔ Economic solution for OEM and EPC projects
Thanks to these features, it is widely preferred in energy, petrochemical, chemical and process industries.
Compared to Rosemount 3051TA, its more compact design optimizes investment costs while delivering reliable performance.
Main applications:
Vacuum systems
Steam condensers
Gas storage systems
Process gas measurements
Reactor pressure monitoring
Distillation columns
Laboratory processes
Calibration systems
OEM skid systems
Absolute pressure measurement provides reliable results unaffected by atmospheric pressure changes.
Rosemount 2051TA order codes define transmitter configuration.
| Parameter | Description |
|---|---|
| TA | Absolute Pressure Transmitter |
| Measurement Range | Low, medium and high absolute pressure ranges |
| Process Connection | ANSI, DIN or NPT |
| Wetted Parts | 316L SS, Hastelloy® |
| Output | 4–20 mA HART®, FOUNDATION™ Fieldbus, PROFIBUS PA |
| Housing | Aluminum or Stainless Steel |
| Certifications | ATEX, IECEx, FM, CSA, SIL options |
Note: Communication protocols, certifications and material options vary depending on the ordered model.
2051TA3A05A1AB4 → High absolute pressure range, 1" ANSI flange, 316L SS, 4–20 mA HART®, IP66/NEMA 4X aluminum housing
2051TA2A22A1AB4 → Medium pressure range, 2" DIN flange, 316L SS, 4–20 mA HART®
2051TA1A02A1AB4 → Low pressure range, ½" NPT, 316L SS, IP66 protection
2051TA2A2B21A1 → Hastelloy® process connection, for corrosive processes, 4–20 mA HART®
2051TA4A2B21AB4 → Very high pressure range, stainless steel housing, Hastelloy® diaphragm
2051TA2A22F1AB4 → FOUNDATION™ Fieldbus communication, 2" DIN flange
2051TA2A22P1AB4 → PROFIBUS PA communication, 2" DIN flange
📑 Model codes must always be verified against Emerson datasheet and selected according to process conditions.
Rosemount 2051TA operates as follows:
Process pressure is measured against reference vacuum.
Deformation of the sensor diaphragm is electronically detected.
Microprocessor applies temperature compensation.
Measurement value is digitally processed.
Converted to analog or digital communication protocol.
Transmitted to PLC, DCS or SCADA systems.
This method ensures stable measurement independent of atmospheric pressure changes.
| Feature | Value |
|---|---|
| Measurement Type | Absolute Pressure |
| Output | 4–20 mA |
| Communication | HART®, FOUNDATION™ Fieldbus, PROFIBUS PA |
| Process Connections | ANSI, DIN, NPT |
| Wetted Parts | 316L SS, Hastelloy® |
| Housing | Aluminum / Stainless Steel |
| Protection | IP66 / NEMA 4X |
| Certifications | ATEX, IECEx, FM, CSA, SIL options |
⚡ Power Plants → Steam condensers, vacuum systems, turbine auxiliary processes
🛢️ Oil & Gas → Gas process lines, storage systems, compressor applications
🧪 Chemical Industry → Reactor pressure, distillation columns, vacuum processes
💧 Water & Wastewater → Vacuum filter systems, pressure-controlled processes
🔧 OEM & Skid Systems → Vacuum skids, gas measurement packages, compact process systems
✔ Measurement independent of atmospheric pressure ✔ High accuracy and long-term stability ✔ Compact body design ✔ HART®, FOUNDATION™ Fieldbus and PROFIBUS PA support ✔ Global certification options ✔ Low maintenance requirements ✔ Low Total Cost of Ownership (TCO) ✔ Economic solution for EPC and OEM projects
Recommended checks during installation:
Zero Trim verification
Sensor Trim check
Loop Test
HART® communication test
Process connection sealing check
Reference pressure verification
DCS/PLC communication check
| Problem | Possible Cause | Solution |
|---|---|---|
| Measurement drift | Calibration shift | Zero Trim and recalibration |
| Unstable signal | Vacuum line problem | Check process connection |
| No communication | HART® configuration | Verify communication settings |
| No output signal | Power supply issue | Check power source |
| Slow response | Impulse line blockage | Clean line and check connections |
| Feature | 2051TA | 3051TA |
|---|---|---|
| Product Position | Compact and economic | Premium process solution |
| Measurement Ranges | Wide | Wider |
| Advanced Diagnostics | Standard | More advanced |
| OEM Applications | Very suitable | Suitable |
| Critical Processes | Suitable | Very high performance |
What does Rosemount 2051TA measure? It measures absolute pressure independent of atmospheric pressure.
Which communication protocols are supported? Standard: 4–20 mA HART®. Optional: FOUNDATION™ Fieldbus and PROFIBUS PA.
Where is it preferred? Vacuum systems, gas processes, laboratory applications, reference pressure measurements and process control systems.
How long is the RFQ process? Yeşil Grup Enerji typically responds within 24–48 hours through its global sourcing network.
Yeşil Grup Enerji provides the following services for Emerson Rosemount 2051TA:
Model code validation
Technical configuration support
Datasheet verification
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 2051TA Absolute Pressure Transmitter is a compact and reliable solution that provides absolute pressure measurement against reference vacuum. It offers high accuracy, long-term stability and low maintenance requirements in vacuum systems, gas processes, laboratory applications and critical industrial processes.
With wide process connection options, HART®, FOUNDATION™ Fieldbus and PROFIBUS PA communication support, it ensures reliable performance in energy, petrochemical, chemical and OEM applications.
Yeşil Grup Enerji, without being an official Emerson distributor, supports projects with model validation, datasheet assistance, alternative product analysis, global sourcing and fast RFQ management. This independent, multi-brand approach combines competitive offers, flexible delivery and reliable engineering support through its international supply network.