Rosemount 3051S MultiVariable Transmitter

• Manufacturer: Emerson
• Model: Rosemount 3051S MultiVariable Transmitter
• Part Number(s): Dependent on configuration (DP range, materials, options)

The Rosemount 3051S MultiVariable Transmitter is a high-performance, field-mounted measurement instrument designed to simultaneously measure differential pressure (DP), static pressure, and process temperature. It calculates flow and compensates for changes in fluid properties, making it ideal for custody transfer, flow measurement, and process control applications. It offers high accuracy, reliability, and diagnostic capability for industrial process environments.

Measured Variables for Rosemount 3051S Transmitter

• Differential Pressure (DP)
• Static Pressure
• Process Temperature

Measurement Capabilities of Rosemount 3051S Transmitter

• DP Measurement Range: Configurable (engineering units selectable)
• Static Pressure (Gauge/Absolute): Configurable
• Temperature Compensation: Integrated temperature sensor for fluid temperature compensation
• Flow Calculation: Real-time flow measurement from DP and temperature

Performance Specifications of Rosemount 3051S MultiVariable Transmitter

Accuracy

• Differential Pressure accuracy: (typically ±0.04% of calibrated span; refer to selected range)
• Static Pressure accuracy: (application-specific, generally high precision)
• Temperature accuracy: (instrument-specific sensor tolerance)

Stability and Repeatability

• Long-term stability for all measured variables
• Excellent repeatability due to robust ceramic sensor technology

Sensor and Construction

• Sensor Technology: Advanced silicon/ceramic sensor
• Wetted Materials:
  • 316L Stainless Steel (standard)
  • Hastelloy C, Monel (optional)
• Housing Material: Aluminum or stainless steel
• Seals: FKM or other elastomers per fluid compatibility
• Diaphragm: All-welded sensing diaphragm

Environmental Ratings

• Ingress Protection: IP66/IP67 (dust tight, water immersion resistant)
• Ambient Temperature Range: Typically −40°C to +85°C (model dependent)
• Process Temperature Limits: Range per configuration and mounting
• Hazardous Area Approvals:
  • ATEX
  • IECEx
  • FM/CSA Class I Division 1
  • NEPSI / other regional certifications (optional)

Electrical

• Power Supply: 24 Vdc (typical)
• Output Signal Options:
  • 4–20 mA HART® digital communication
  • FOUNDATION™ Fieldbus (optional)
• Connection: 2-wire loop powered

Communication & Diagnostics

• HART Communication Protocol: Version 7 and above (for configuration and diagnostics)
• Advanced Diagnostics:
  • Sensor health monitoring
  • Fault detection
  • Predictive alerts
• Smart Device Configuration: Compatible with:
  • Handheld communicators
  • AMS™ Device Manager
  • Field diagnostic tools

Mounting and Installation

• Mounting: Remote or direct mounted
• Manifold: Separate DP manifold required (if applicable)
• Process Connections: Flanged or threaded as specified
• Orientation: Typically vertical mounting recommended

Certifications & Compliance

• Hazardous Area Certifications: ATEX, IECEx, FM, CSA
• Quality Standards: ISO 9001 certified manufacturing
• Flow Calculation Standards: IEC 61511 / API 14.3 / ISO 5167 (when used with proper primary element)

Optional Features

• Redundant sensors
• Extended temperature range
• High static pressure range options
• SIL (Safety Integrity Level) certification
• Special wetted materials for corrosive environments

Typical Applications

• Custody transfer and fiscal metering
• Steam and gas flow measurement
• Liquid and gas flow control
• Level measurement in pressurized vessels
• High accuracy process control and monitoring

Documentation & Support

• User Manual
• Installation Instructions
• Calibration Certificate
• Safety Data and Compliance Certificates
• Technical Support Services