Rosemount 3051S Multivariable Transmitter

The Rosemount 3051S Multivariable Transmitter offers superior flow calculation capabilities, including fully compensated mass or volumetric flow, energy, and cumulative flow, delivering unparalleled performance and functionality. Specify the compensation level best suited for your application:

• Gas, natural gas, and steam measurement: Utilizes full compensation (differential pressure, line pressure, and temperature measurements)

• Saturated steam: Utilizes differential pressure and line pressure, or differential pressure and temperature measurements

• Liquids: Utilizes differential pressure and temperature measurements

• Liquids at stable temperatures: Utilizes differential pressure measurements

• 4–20 mA HART, Wireless HART

• Integrated multi-parameter measurement: A single device simultaneously measures differential pressure, static pressure, and temperature, reducing installation points and costs.

• High-precision flow compensation: Built-in dynamic flow calculation supports dual temperature and pressure compensation for gases, steam, and liquids

• Exceptional stability: 0.2% URL stability over 15 years, 15-year warranty, reducing maintenance frequency

• Ultra-wide turndown ratio: 200:1 turndown ratio enables wide-range measurement and reduces the variety of spare parts required

• Advanced diagnostics: Loop integrity, process intelligent diagnostics, and pressure tube blockage monitoring

• Flexible communication: Supports 4–20 mA HART, WirelessHART, and FOUNDATION Fieldbus

Measurement Performance

• Measurement Types: Differential Pressure (DP), Static Pressure (SP), Process Temperature

• Differential Pressure Range: 0–0.138 bar to 0–138 bar (0–2 psi to 0–2000 psi)

• Maximum Static Pressure: 420 bar (6092 psi)

• Accuracy: ±0.04% of span / ±0.04% of reading (High-Accuracy Model)

• Stability: ±0.2% of full scale (15 years)

• Range Ratio: 200:1

• Temperature range: -40°C to 85°C (electronic components); -50°C to 121°C (sensor)

Physical and Material Specifications

• Wetted materials: 316L SS, Alloy C-276, tantalum, gold-plated 316L

• Process Connections: 1/4-18 NPT, 1/2-14 NPT, Flange (ANSI/EN/DIN)

• Electrical Connections: 1/2-14 NPT, G1/2, M20×1.5

• Protection Rating: IP66 / NEMA 4X

Communication and Output

• Analog Output: 4–20 mA HART (multi-variable digital overlay)

• Wireless: WirelessHART (update rate 1 second to 60 minutes)

• Digital Protocol: FOUNDATION Fieldbus

• Oil and Gas: Flow/pressure monitoring at wellheads, pipelines, and separators

• Chemical: Steam/gas/liquid measurement in reactors, columns, and boilers

• Power Generation: Flow compensation measurement for boiler feedwater, steam, and natural gas

• Water Treatment: Flow and process pressure monitoring for wastewater and purified water

• Food & Beverage: Sanitary-grade flow and pressure measurement (NSF certified)

• Standard Model: 3051SMV (Multivariable Flow)

• Wireless Model: 3051SMV Wireless (WirelessHART)

• Optional Accessories:

• Integrated Valve Assemblies: Type 305, Type R305

• Remote Seals: 1199/1299 Dual Seal System

• Flush Ring: Model 319

• Hazardous Locations: ATEX, CSA, IECEx, NEPSI

• Industry Certifications: NACE MR0175, NSF (Food Sanitation)

• Classification Society Certifications: ABS, BV, DNV,

• Genuine Emerson product, officially authorized channel, quality guaranteed

• 15-year warranty + 15-year stability, lowest lifecycle cost

• Multi-variable integration, reducing the number of instruments and lowering installation and maintenance costs

• Fully compensated flow measurement, no additional hardware required, higher accuracy

• Global technical support, professional selection, installation, and commissioning services

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