Foxboro 84CF Flanged Vortex Flowmeter

84CF Vortex Flowmeter

The Foxboro 84CF is a high-performance, multivariable vortex flowmeter engineered to deliver precise, stable, and maintenance-free measurement of mass and volumetric flow across a wide range of industrial liquids, gases, and saturated steam applications. Manufactured by Schneider Electric under the trusted Foxboro brand, the 84CF combines robust mechanical construction, advanced signal processing, and integrated temperature sensing into a compact and highly reliable unit. What sets the 84CF apart is its ability to perform direct mass flow measurement without requiring external transmitters or flow computers—making it a cost-effective and space-saving solution for applications where temperature fluctuations or fluid phase changes impact flow measurement accuracy. With extensive certifications and multiple installation formats, it is tailored for use in refineries, chemical plants, power generation, pulp & paper, food & beverage, and more.

At its core, the Foxboro 84CF uses the vortex shedding principle, in which a bluff body creates alternating vortices as fluid flows past it. These vortices are detected using DirectSense™ piezoelectric sensors, producing a frequency signal proportional to the fluid’s velocity. Unlike traditional vortex meters, the 84CF also includes a built-in platinum RTD (Pt1000) sensor, allowing the device to dynamically compensate for temperature and compute mass flow directly within the meter. This multivariable capability is particularly valuable in saturated steam and gas flow applications, where pressure and temperature changes can significantly affect density and flow calculations. By incorporating temperature measurement and using internal compensation algorithms, the 84CF enables users to achieve highly accurate mass flow measurement with a single instrument, reducing complexity and improving process control.

Ideal for:

Steam, Gas, Liquid Measurement
Mass Flow Metering
Dosing and Blending
Hygienic Applications
High-Temperature Processes
Steam Distribution
Thermal Energy Usage

Features:

Multivariable measurement
Integrated RTD sensor
DirectSense™ technology
ActiveTuning™ algorithms
Accuracy:
- ±0.5% of reading for liquids
- ±1.0% for gases and steam
- ±1.4% for saturated steam
40:1 turndown ratio
No moving parts
Available in ¾″ to 12″
Flanged, Wafer, Threaded & Sanitary Connections
316L stainless steel
Up to 430 °C
Capable of high-pressure applications
IP66 rated
4-20 mA output signal
Pulse output capable
Communications:
- HART 7
- Modbus RTU
Optional LCD display with pushbuttons
ATEX, IECEx, FM, CSA, NEPSI, EAC, INMETRO certified
Meets RoHS, REACH, and CE directives
Continuous self-diagnostics
NAMUR NE107 diagnostic alerts
Field Configurable