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Rosemount™ 3051SFA Wireless Annubar™ Flow Meter
rosemount 3051sfa wireless annubar flow meter
The Rosemount 3051SFA Wireless Annubar Flow Meter is a cost-effective, best-in-class MultiVariable solution that provides measurements via a secure WirelessHART® network.
This flow meter delivers direct variable measurements without the cost of wiring and is built with a patented averaging pitot tube designed for optimal accuracy over a wide flow range. This T-shaped Annubar sensor also maintains a small profile in the pipe for reduced permanent pressure loss and increased energy savings.
Rosemount™ 3051SFA Wireless Annubar™ Flow Meter


Up to 15-year limited warranty
Up to 200:1 (14:1 flow turndown)
Measurement Range
Up to 2000 psi (137,89 bar) differential, Up to 3626 psia (250,00 bar) absolute, Up to 3626 psig (250,00 bar) gage
Line Size
2 to 96 in. (50 to 2440 mm)
Differential pressure, static pressure, scaled variable
Communication Protocol
Process Wetted Material
316 SST, Alloy C-276
Basic Diagnostics, Loop Integrity, Process Intelligence, Plugged Impulse Line
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
Long range (225 m), extended range (800 m), remote (225 m) and high-gain remote (1 km)


  • WirelessHART® technology is secure, cost-effective and delivers >99% data reliability
  • Ultra for Flow performance class enables optimized flow measurement with a ±0.04% of reading accuracy
  • Patented T-shape sensor creates a fixed separation point for DP signal improvement over a wider flow rate
  • All-welded, resilient SuperModule™ sensor offers best-in-class accuracy in harsh environments and applications
  • Flowmeters come fully configured, leak-tested and ready to install right out of the box for fast installation
  • Sensor stagnation zone positioned to reduce noise, measurement inaccuracies and keeps particulates from clogging
  • T-shape sensor design offers very low permanent pressure loss
  • 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