Product Overview

The SITRANS FC120/FC140 are part of the SITRANS FC100 series of precision Coriolis multi-parameter flowmeter systems for low-flow applications. The systems are composed of a separate FCS100 sensor and an FCT transmitter, with the FC120 using the FCT020 transmitter and the FC140 using the FCT040. They feature compact dual-curved alloy measuring tubes and are designed to allow for the installation of the sensor and transmitter in different locations.

Key Benefits

• One device can provide multiple individual measurements, such as flow, density, viscosity, thermal energy, and concentration.
• The dual-tube design is resistant to external influences, allowing installation in tight spaces without inlet and outlet restrictions.
• High accuracy is maintained in the low-flow region due to first-class zero-point quality.
• Meters are calibrated in rigs accredited to EN/ISO 17025 to ensure consistently high performance.
• The design is resilient to process extremes and includes a self-verification "tube health check" function.
• Product design features interchangeable modular parts to reduce the cost of spare parts.

Applications

• Chemical & Petrochemical: Transfer of bulk chemicals, concentration control of acids and alkalis, and lubricating oil blending.
• Food & Beverage: Accurate transfer of dairy products, fat concentration in cream, and measurement of flow, density, and sugar concentration in soft drink processing.
• Oil & Gas: Loading/unloading of hydrocarbons, high-pressure chemical injection, and well-head water-cut monitoring.
• Life Sciences: High-accuracy flow and batching of bioreactor feeds, and solvent flow rate and density measurement.

Features & Construction

• Design: Compact dual-curved alloy 22 measuring tubes. The sensor and transmitter are connected via a cable, allowing them to be installed in different locations.
• Measuring Variables: Primary measured variables include mass flow, density, and temperature. The transmitter can also calculate volume flow and, with the FCT040 model, percent concentration and partial component flow rate of a two-component mixture.
• Process Connections: Options include flange, thread, or hygienic clamp connections.
• Compatible Fluids: The system is compatible with liquids, gases, and mixtures, solutions, emulsions, suspensions, and slurries.
• Temperature Range: The standard process temperature range is -50 to 150°C, with a medium-range option up to 260°C available for long-neck sensors.

Technical Specifications

• Nominal Sizes: DN 1 to DN 8.
• Nominal Flow Rates: 21 kg/h to 950 kg/h.
• Accuracy: Mass flow accuracy for liquids is ±0.1% with the FCT040 transmitter. Density accuracy is from ±0.5 kg/m³.

Installation & Maintenance

• Installation: The flowmeters can be mounted horizontally, vertically, or on an incline, and straight pipe runs are not usually required. It is recommended to keep the measuring tubes filled with fluid during measurement.
• Maintenance: The system includes a self-verification function that performs a "tube health check" by monitoring key diagnostics such as tube stiffness, driver, and pickups. This helps to indicate when preventive maintenance is required.