Rosemount 3051SAL Level Transmitter

• Product Name: Rosemount 3051SAL
• Manufacturer: Emerson / Rosemount
• Model Series: 3051S
• Type: Differential Pressure Level Transmitter

The Rosemount 3051SAL Level Transmitter is a precision differential pressure-based level measurement instrument designed for continuous liquid level monitoring in industrial process applications. It provides highly reliable, stable, and accurate level measurement with a robust all-welded stainless steel sensor suited for demanding field environments. The transmitter supports HART communication protocol for configuration and diagnostics.

Measurement Principle for Rosemount 3051SAL Level Transmitter

• Technique: Differential Pressure (DP)
• Sensing Element: All-welded stainless steel silicon strain gauge
• Reference Type: Remote or integrated reference
• Output Signal:
  • 4–20 mA DC (primary)
  • HART® digital communication protocol

Range and Performance for Rosemount 3051SAL Level Transmitter

• Measurement Range: Configurable per application (typical range 0–XXX mH₂O or equivalently 0–XX kPa)
• Accuracy: ±0.065% of calibrated span
• Stability: < ±0.04% of URL (Upper Range Limit) per year
• Turn-Down Ratio: Up to 100:1 (application dependent)
• Response Time: < 1 second

Environmental and Operating Conditions

• Operating Temperature Range (Electronic Housing): −40 to 85 °C (−40 to 185 °F)
• Process Temperature Range: Dependent on remote seal and fill fluid selection
• Ambient Conditions: Suitable for outdoor installation with proper sun shield or enclosure
• Ingress Protection: IP66/67 (NEMA 4X equivalent)
• Shock & Vibration: Meets IEC 60068 standards

Process Connection and Wetted Materials

• Process Connection Options:
  • Standard threaded connections
  • Flanged connections (ANSI/DIN) via impulse line manifold
• Wetted Parts Material: 316L Stainless Steel (standard)
• Fill Fluid (Remote Seals):
  • Silicone oil (standard)
  • High-temperature fill fluids available
• Seal Materials:
  • Gaskets: PTFE or suitable elastomers (application specific)

Electronics and Communication

• Output:
  • 4–20 mA with HART® 7 (digital communication)
• Power Supply: 8–35 VDC
• Configuration: Via HART communicator or compatible software (e.g., AMS Suite, FieldComm Group tools)
• Status Diagnostics:
  • Sensor health
  • Device status
  • Wireless if equipped (optional)

Installation and Mounting

• Mounting Orientation: Upright or side mount per application design
• Impulse Lines: 2-wire differential impulse lines (equal length recommended)
• Venting: Suitable venting of low-pressure side required in level applications

Approvals and Compliance

• Certifications: CE, SIL (optional), RoHS compliant
• Hazardous Area Certifications:
  • ATEX
  • IECEx
  • cULus (depending on model code)
• Industry Standards: IEC 61508, IEC 60079 series

Performance Specifications Summary

Parameter	Specification
Accuracy	±0.065% of span
Stability	< ±0.04% URL/year
Output	4–20 mA with HART
Power	8–35 VDC
Environmental Protection	IP66/67
Wetted Material	316L SS (standard)
Communication	HART protocol

Accessories and Options

• Remote seal assemblies for corrosive/high temp media
• Flush diaphragms
• Rain/solar shields
• Local display (optional)
• Manifold valve assemblies
• Junction boxes, conduit entries

Warranty

• Standard manufacturer warranty per Emerson / Rosemount terms
• Extended warranty available via authorized distributor