The Unique Value of the Rosemount 3051 Coplanar Platform Design
In the world of process automation, pressure transmitters are more than just instruments—they are the foundation of safe, efficient, and reliable operations. Among the many innovations in this field, the Rosemount 3051 Coplanar™ platform stands out as a design that has redefined how industries approach pressure, flow, and level measurement.
What Is the Coplanar Platform?
The Coplanar™ platform is a patented design introduced by Emerson for the Rosemount 3051 series. Unlike traditional transmitter layouts, the Coplanar design places the process connections, isolating diaphragms, and sensor module on the same horizontal plane.
This simple yet powerful innovation enables seamless integration with manifolds, primary flow elements, and remote seals—all while reducing complexity and potential leak points.
The Unique Value of the Coplanar Design
1. Versatility Across Applications
- One platform supports differential, gauge, and absolute pressure measurement.
- Easily integrates with flow elements (orifice plates, Annubar®, Venturi tubes) and level measurement systems.
- Reduces the need for multiple transmitter types, simplifying engineering and inventory.
2. Simplified Installation and Maintenance
- Factory-assembled and leak-tested with manifolds and primary elements.
- Eliminates the need for hot work permits or complex scaffolding during installation.
- Compact, flangeless design reduces weight and space requirements.
3. Improved Safety and Reliability
- Fewer process connections mean fewer potential leak paths.
- Integrated diagnostics (such as Plugged Impulse Line Detection and Loop Integrity Checks) enhance operational safety.
- Materials like 316L stainless steel and Alloy C-276 ensure durability in corrosive environments.
4. Cost Efficiency Over the Lifecycle
- Reduces engineering hours by standardizing on a single platform.
- Minimizes spare parts inventory and training requirements.
- Long-term stability (up to 5 years without recalibration) lowers maintenance costs.
5. Future-Ready Digital Intelligence
- Supports HART®, FOUNDATION™ Fieldbus, PROFIBUS, and WirelessHART® protocols.
- Bluetooth® connectivity enables safe, remote configuration and monitoring.
- Advanced diagnostics provide predictive insights, reducing unplanned downtime.
Real-World Impact
- Flow Measurement: When paired with an orifice plate or Annubar®, the Coplanar platform delivers fully compensated mass flow calculations, improving accuracy and profitability.
- Level Measurement: In pressurized tanks, the Coplanar design simplifies DP level measurement by integrating with remote seals.
- Safety Systems: SIL 2/3 certifications make it suitable for critical safety instrumented functions.
Conclusion
The Rosemount 3051 Coplanar™ platform is more than a mechanical innovation—it is a strategic design philosophy. By unifying pressure, flow, and level measurement into a single, modular platform, it delivers unmatched versatility, safety, and lifecycle value.
For industries seeking to reduce complexity while enhancing reliability, the Coplanar platform remains the gold standard in pressure transmitter design.
