Foxboro 84CN Threaded / Male NPT Vortex Flowmeter

84CN Vortex Flowmeter

The Foxboro® 84CN is a high-performance vortex shedding flowmeter with a compact, threaded-end design, tailored for accurate, reliable measurement of liquids, gases, and saturated steam in smaller pipelines. It integrates the precision and diagnostic intelligence of the Foxboro 84C series into a space-efficient housing ideal for installations where flanged connections are impractical, such as retrofit, confined, or lightweight applications. Leveraging Foxboro’s field-proven vortex technology, the 84CN enables direct mass flow measurement (when configured with temperature compensation), digital communication, and intrinsically safe operation, all while eliminating the need for external flow computers or complex wiring. With ActiveTuning™ compensation algorithms, it maintains measurement accuracy even under suboptimal flow profiles and low Reynolds numbers—making it a preferred choice for process engineers and system integrators seeking dependable flow data in real-world conditions.

Ideal for:

• Small-Pipe Installations
• Steam/ Thermal Energy Monitoring
• Chemical and Petrochemical
• Chilled, Heated Water Loops
• Building Utility Systems
• Equipment Manufacturers
• Refining

Features:

• Accuracy:
  • ±0.75% of rate for liquids
  • ±1.0% of rate for gases and steam
• Repeatability of ±0.2%
• 30:1 turndown ratio or better
• Optional built-in temperature sensor
• ActiveTuning™ Technology
• 4-20 mA output signal
• Pulse signal output
• Communications:
  • HART 7
  • Modbus RTU using RS-485
• ATEX, IECEx, FM, CSA, EAC, INMETRO, NEPSI, KOSHA certified
• Stainless steel construction
• Gold-plated sensor option
• IP66 rated housing
• Operating range of −40°C to +85°C
• Bidirectional flow measurement
• Self-diagnostics and fault detection built-in

Document Downloads:

• 84CN-Data Sheet
• 84CN-Spec Sheet