ABB FCB350-A1A1050 Coriolis Mass Flow Meter

The ABB FCB350-A1A1050 is a Coriolis mass flow meter from ABB’s FCB300 series, designed for direct and precise measurement of mass flow, density, and temperature of liquids, gases, and slurries. The model designation R0D4A1M3Y0Y0Y specifies a particular configuration including materials, flanges, electronics, and approvals, making it suitable for a wide range of industrial applications, from chemical processing to oil and gas.

Operating Principle

Coriolis flow meters operate on the principle of measuring the Coriolis force generated when a fluid flows through vibrating tubes. The FCB350 uses twin straight or bent tubes that are electromagnetically driven to vibrate at their natural frequency. As fluid flows through the tubes, the Coriolis forces cause a phase shift that is directly proportional to the mass flow rate. Additionally, the vibration frequency varies with fluid density, allowing simultaneous density measurement. An integrated temperature sensor compensates for tube elasticity changes due to temperature.

Key Features and Benefits

• High accuracy: Mass flow accuracy up to ±0.1% of rate, density accuracy up to ±0.0005 g/cm³.

• Wide turndown: Typically 100:1, allowing measurement over a broad flow range.

• Multivariable output: Simultaneous measurement of mass flow, volumetric flow, density, temperature, and derived concentrations.

• No moving parts: Low maintenance and high reliability, even with abrasive or corrosive fluids.

• HART, Modbus, or FOUNDATION Fieldbus communication: Easy integration with control systems.

Mechanical and Material Specifications

The FCB350-A1A1050 features wetted parts made of stainless steel (e.g., 316L) or Hastelloy, depending on the order code. The R0D4A1M3Y0Y0Y configuration indicates specific flange ratings (e.g., ANSI or DIN), tube material, and housing options. The meter is available with various process connections (flanged, threaded, or hygienic) to suit different installations. It has a compact, robust enclosure rated IP66/67, suitable for outdoor and hazardous area installations (ATEX, IECEx, cFM approvals available).

Applications

The FCB350 is ideal for applications requiring high accuracy and reliability, such as:

• Chemical and petrochemical: Reactor feed, additive control, batch processes.

• Oil and gas: Wellhead allocation, pipeline monitoring, LPG/LNG transfer.

• Food and beverage: Sanitary flow measurement, batching, and filling.

• Pharmaceutical: Precise ingredient dosing and clean-in-place (CIP) systems.

Electrical and Communication

The transmitter electronics offer a backlit graphical display for local reading and configuration. Outputs include two analog 4-20 mA loops (active/passive), pulse/frequency output for totalized flow, and digital communication via HART protocol as standard. Optional modules provide Modbus RTU/RS485 or FOUNDATION Fieldbus. The device also includes self-diagnostics and verification functions to ensure measurement integrity.

Technical Data

• Flow range: Depending on tube size, from 0 to 2000 kg/h up to 200 t/h.

• Process temperature: -50°C to +200°C (extended options available).

• Ambient temperature: -40°C to +60°C.

• Pressure rating: Up to 400 bar (5800 psi) depending on flange standard.

The ABB FCB350-A1A1050 Coriolis mass flow meter delivers exceptional performance and reliability, making it the preferred choice for critical flow measurement applications where accuracy and low maintenance are paramount.