What’s New Between Rosemount 2051 and Rosemount 3051?
Rosemount 2051 vs Rosemount 3051 Comparison
| Parameter | Rosemount 2051 | Rosemount 3051 |
|---|---|---|
| Product Positioning | Economy-level pressure transmitter | High-performance smart pressure transmitter |
| Measured Pressure Types | Gauge / Differential Pressure | Absolute / Gauge / Differential Pressure |
| Accuracy | ±0.075% to ±0.15% | ±0.025% to ±0.04% |
| Turndown Ratio | 5:1 | Up to 150:1 |
| Long-Term Stability | Up to 3 years | 10 to 15 years |
| Maximum Pressure Range | Up to 250 inH₂O (62.3 kPa) | Up to 10,000 psi (689 bar) |
| Communication Protocols | HART (limited PROFIBUS PA) | HART / WirelessHART / FOUNDATION™ Fieldbus |
| Safety Certification | Basic explosion-proof (IP65) | SIL 2 / SIL 3 (IEC 61508) |
| Wetted Materials | 316L Stainless Steel, Alloy C-276 | Hastelloy, Tantalum coating options |
| Advanced Diagnostics | Standard diagnostics | Power advisory, diaphragm health, predictive alerts |
| Wireless Capability | Not supported | WirelessHART supported |
| Typical Applications | Water treatment, HVAC, general-purpose pressure measurement | Energy metering, chemical processing, SIS, smart plants |
Summary
In summary, the Rosemount 2051 is a cost-effective pressure transmitter designed for standard applications with moderate accuracy and basic communication needs. It is well suited for utilities, HVAC systems, and general industrial processes where budget control is a priority.
The Rosemount 3051, by contrast, is a high-end smart pressure transmitter built for demanding process environments. With superior accuracy, wide turndown, long-term stability, advanced diagnostics, and WirelessHART support, it is ideal for critical applications such as energy metering, chemical processing, safety systems, and Industry 4.0 upgrades.
Choosing between Rosemount 2051 and 3051 ultimately depends on application complexity, accuracy requirements, and lifecycle cost considerations. For long-term performance and smart plant integration, the Rosemount 3051 offers clear advantages, while the 2051 remains a reliable choice for budget-sensitive projects.