Rosemount 3051N Smart Pressure Transmitter — Nuclear Service

The Rosemount 3051N Smart Pressure Transmitter for Nuclear Service is a high-performance, SIL-capable differential/absolute/gauge pressure transmitter engineered for use in nuclear power facilities and other high-reliability environments. It provides accurate, stable pressure measurement with a robust design, extensive diagnostic capability, and compliance with nuclear quality standards.

Model / Part Identification of Rosemount 3051N

• Manufacturer: Emerson Process Management / Rosemount
• Model: 3051N
• Family: 3051 Smart Pressure Transmitters — Nuclear Service
• Service Type: Nuclear Safety-related and Non-Safety Applications
• Configuration: Gauge, Absolute, or Differential Pressure
• Output: Digital (HART), 4–20 mA
• Approvals: Qualified for Nuclear Service Applications

Key Features & Functional Description of Rosemount 3051N Smart Pressure Transmitter 

• Measurement Principle: Silicon capacitive sensor with microprocessor-based compensation
• Smart Digital Communications: HART Protocol (standard), optional FOUNDATION Fieldbus
• Redundant Sensor Options: Available for enhanced reliability
• On-Board Diagnostics: Automatic self-check for sensor drift, electronics, and wiring
• High Accuracy: Stable over wide temperature ranges
• Low Power Consumption: Compatible with standard 4–20 mA loop power

Electrical Specifications 

• Supply Voltage: 10.5–42 V DC
• Output Signal: 4–20 mA with HART digital overlay
• Load Resistance:
  • Typical: 250–900 Ω
  • Maximum to maintain HART: per HART spec
• Power Consumption: < 3.5 W typical

Measurement Ranges

Selectable Ranges for Pressure Sensing: (Exact ranges per order configuration)

• Gauge Pressure:
  • Minimum: 0–1 bar (0–15 psi)
  • Maximum: 0–20,000 psi or equivalent
• Differential Pressure:
  • 0–1 inH2O up to 0–6000 psi
• Absolute Pressure:
  • 0–15 psi abs up to 0–20,000 psi abs
• Custom range available per request

Performance & Accuracy

• Accuracy (Static): ±0.025% of calibrated span typical
• Configuration Limits: ±0.04% of span max over compensated range
• Temperature Effects: ±0.005% per °C typical
• Long-Term Stability: Industry-leading silicon sensor stability

Material & Mechanical Details

• Wetted Materials:
  • Pressure Boundary: 316L SS (standard), optional exotic alloys
  • Diaphragm: 316L SS
• Housing:
  • IP66/67 Aluminum or Stainless Steel enclosure available
  • Optional environmental protections
• Process Connection:
  • Flanged or threaded adapters per ASME/ANSI / ISO standards
  • Optional customizable fittings for nuclear service
• Mounting Orientation: Any

Environmental & Operational Conditions

• Operating Temperature: –40 °C to +85 °C (–40 °F to +185 °F)
• Storage Temperature: –50 °C to +100 °C
• Shock & Vibration: Per IEC standards for industrial environments
• Humidity: 0–100% condensing permissible
• Seismic: Optional seismic ruggedization

Nuclear Quality & Regulatory Compliance

• Quality Assurance: Manufactured under nuclear quality program
• Traceability: Full material and calibration traceability
• Documentation Package: Includes:
  • Calibration certificates
  • Material traceability reports
  • Environmental test data
• Testing Requirements: In accordance with customer nuclear standards where applicable
• Seismic Qualification: Per customer specification or IEEE/IEC standards if required
• Optional SIL Certification: Safety Integrity Level capability available

Diagnostics & Smart Functionality

• Continuous self-diagnostics
• Real-time sensor health monitoring
• HART diagnostics include:
  • Smart trimming
  • Sensor status
  • Loop integrity checks
• Configurable alarm limits via HART

Communication & Configuration Tools

• HART Communicator: Supported
• Configuration Software: Emerson AMS or equivalent
• Fieldbus Options: Optional FOUNDATION Fieldbus

Packaging, Shipping & Storage Conditions

• Packaged to prevent:
  • Mechanical shock
  • Moisture ingress
  • Contamination
• Storage range per ambient specification
• Marking for nuclear applications
• Sealed calibration documentation

Warranty & Support

• Standard manufacturer warranty per Emerson terms
• Extended warranty options available
• Technical support via Emerson/Rosemount engineers
• Calibration and service centers available locally