Rosemount 2051 Differential Pressure Flow Transmitter

Product Benefits

Warranty: Up to 5-year limited warranty

Rangedown: Up To 100:1

Measurement Range: Up to 2000 psi (137,9 bar) differential

Output: Differential pressure, scaled variable

Communication Protocol: 4-20 mA HART®, WirelessHART®, FOUNDATION™ Fieldbus, PROFIBUS®, 1-5 V Low Power HART®

Process Wetted Material: 316L SST, Alloy C-276, Tantalum

Diagnostics: Basic Diagnostics

Certifications/Approvals: SIL 2/3 certified to IEC 61508 by an independent 3rd party, NSF, NACE®, hazardous location, see full specs for complete list of certifications

Technical Data

  • Available pre-assembled to primary elements for an installation-ready flow solution that ensures reliable performance
  • Complete flow assemblies are leak-tested and calibrated to reduce leak points up to 70% and simplify installation
  • Local operator interface offers easy-to-use menus and built-in configuration buttons for streamlined commissioning
  • Performance up to 0.05% of span accuracy
  • SIL 2/3 certified to IEC 61508 (via 3rd party) and prior-use certificate of FMEDA data for safety installations


The optional wide neck allows the user to reach inside the carboy for easier cleaning. Carboy material and volume are clearly imprinted on the outside of the bottle as well as large, easy to read, metric graduation marks which are certified to ±5% accuracy.

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