• Unit 3A, Adwick Park, Swinton, Rotherham S63 5AB

Rosemount™ 3051CFA Wireless Annubar™ Flow Meter

The Rosemount 3051CFA Wireless Annubar Flow Meter is an industry-leading flow measurement solution paired with a secure WirelessHART®network. This flow meter is customized with a patented, T-shaped, averaging pitot tube that delivers precise measurement over a wide flow range and maintains a small profile in the pipe to reduce permanent pressure loss. Coupled with WirelessHART® technology, this flow meter offers quick installation of measurement points without the cost of wiring.


  • WirelessHART® technology is secure, cost-effective and delivers >99% data reliability
  • Patented T-shape sensor creates a fixed separation point for DP signal improvement over a wider flow rate
  • T-shape sensor design offers very low permanent pressure loss
  • 10-year stability and 8:1 flow turndown (150:1 rangedown) produce reliable measurements and application flexibility
  • Complete flow assemblies are leak-tested and calibrated to reduce leak points up to 70% and simplify installation
  • SmartPower™ module provides up to 10-year maintenance-free operation and field replacement without transmitter removal
  • Easy installation enables quick instrumentation of measurement points without the cost of wiring
  • Warranty
    Up to 5-year limited warranty
  • Rangedown
    Up to 150:1 (8:1 flow turndown)
  • Measurement Range
    Up to 1000 inH2O (2,48 bar) differential
  • Line Size
    2 to 96 in. (50 to 2440 mm)
  • Output
    Differential pressure, scaled variable
  • Communication Protocol
  • Process Wetted Material
    316 SST, Alloy C-276
  • Diagnostics
    Basic Diagnostics, Loop Integrity
  • Certifications/Approvals
    NACE®, hazardous location, see full specs for complete list of certifications
  • Update Rate
    1 sec. to 60 min., user selectable
  • Power Module
    Life Up to 10-year life, field replaceable (order separately)
    Wireless Range Internal antenna (225 m)