Featuring industry-standard performance for flow measurement, the Rosemount 2051CFC Wireless Compact Conditioning Orifice Plate Flow Meter provides >99% data reliability via a secure WirelessHART? network. This flow meter includes a conditioning orifice plate with a patented 4-hole design for accuracy in turbulent flow conditions. This flow meter requires only two pipe diameters (2D) upstream and downstream of straight run for application flexibility. Specifications Measurement Type Differential Pressure Accuracy 0.40 Beta: ±2.25% of flow rate 0.50 & 0.65 Beta: ±2.45% flow rate Stability Up to ±0.125% of Upper Range Limit (URL) for 5 years Warranty Up to 5-year limited warranty Rangedown Up to 100:1 (5:1 flow turndown) Measurement Range Up to 1000 inH2O (2,48 bar) differential Line Size 2 to 12 in. (50 to 300 mm) Output Differential pressure, scaled variable Communication Protocol WirelessHART? Process Wetted Material 316 SST Diagnostics Basic Diagnostics 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) Features WirelessHART? technology is secure, cost-effective and delivers >99% data reliability Patented 4-hole design enables accurate flow measurement in turbulent flow profiles Innovative orifice plate requires only 2D upstream and downstream to reduce pipe straight-run requirements 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 z