SI-20FE Coriolis Mass Flow Controller/Flow Meter

Coriolis mass flow controllers are highly regarded for their measurement accuracy and insensitivity to fluid properties. Conventional Coriolis flow meters are used for measuring higher flow rates. The SI-20FE successfully applies this technology to very low flow rate measurements, integrating a PID controller and batching functionality for flow control or quantitative feeding.

The SI-20FE Coriolis Mass Flow Controller/Flow Meter provides fast and accurate flow control of low-pressure fluids without relying on any additional equipment. It simultaneously measures and outputs mass flow rate, fluid density, and temperature, offering two levels of accuracy: ±0.25% for liquids or ±0.5% for gases. This is sufficient for most customers’ needs, suitable for various laboratory experiments as well as complex industrial environments.

★★★★★

  • Short delivery time
  • Better price
  • Customizable parameters

Features

  • Direct measurement of mass flow;
  • Accuracy up to ±0.5% F.S. for gases and ±0.25% for liquids;
  • No dead zone;
  • Fast response and quick adjustment;
  • High precision with excellent repeatability;
  • Integrated PID controller for flow regulation;
  • High cost-effectiveness;
  • High reliability and long service life;
  • No thermal drift, negligible temperature drift and time drift;
  • Simultaneous measurement and output of fluid density and temperature;
  • Capable of measuring high-viscosity fluids and high-density gases;
  • Minimal sensitivity to environmental vibration.

Specifications

ModelMass Flow ControllerMass flow meter
Measurement Range0–(40 g/h to 1000 kg/h)
Control RangeController valve control range 50:1Flow range ratio 100:1
Accuracy (Gas)±0.5% F.S. (Full Scale)
Accuracy (Liquid)±0.25% F.S. (Full Scale)
Repeatability±0.05% F.S.
Stability<±0.1% F.S.
Response Time<0.2 s<0.1s
Temperature Accuracy±0.5°C
Operating Temperature0–70°C
Maximum Pressure Rating3MPa/10MPa
Leak Rate<2×10⁻⁹ Pa·m³/s
Base Material304L/316L
Connectionφ6, φ8, φ10, φ12, compression fitting, flange mounting, etc.
External Seal MaterialMetal
Enclosure Protection RatingIP40
Mounting PositionMountable in any position
Monochrome LED DisplaySimultaneous display of flow rate and setpoint
Electrical ConnectionDB9 port, RJ11, 5.5×2.1 quick-connect power plug
Display StatusWith LCD display, without LCD display
Digital InputsRS232/485, MODBUS protocol
Analog Inputs0~5V, 4-20mA, 1-5V
Power Supply±15VDC, 24VDC
ModelSI-20FE-SCSI-20FE-LCSI-20FE-MCSI-20FE-BCSI-20FE-XC
Measure Range40g/h-50kg/h40g/h-50kg/h50kg/h-100kg/h100kg/h-300kg/h300kg/h-1000kg/h
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Coriolis Mass Flow Controller/Flow Meter Performance and Principle

Coriolis mass flow meters are highly regarded for their measurement accuracy and insensitivity to fluid properties. The SI-20FE Coriolis Mass Flow Controller/Flow Meter incorporates a uniquely shaped single-loop sensor as part of an oscillating system.

When fluid flows through the sensor loop, the Coriolis force induces a variable phase shift. The sensor detects this phase shift and transmits it to a DSP processor on an integrated circuit board for processing. The output signal generated by this variable phase shift is strictly proportional to the actual mass flow rate, achieving unparalleled high performance even under varying conditions such as pressure, temperature, density, conductivity, and viscosity.

The SI-20FE Coriolis Mass Flow Controller/Flow Meter simultaneously measures and outputs mass flow rate, fluid density, and temperature.

Featured Applications

The SI-20FE Coriolis Mass Flow Controller/Flow Meter offers two levels of accuracy: ±0.25% for liquid measurements and ±0.5% for gas measurements. This is sufficient for most customers’ needs, suitable for various laboratory experiments as well as complex industrial environments.

The SI-20FE Coriolis Mass Flow Controller/Flow Meter can be used in process fluid measurement or control systems in the food, (petro)chemical and pharmaceutical industries, fermentation equipment, semiconductor processing, and fuel cell technology. Examples include:

  • Catalyst research;
  • Liquid precursor delivery to evaporators;
  • Precision coating;
  • High-precision filling stations;
  • Metering pump feedback/control loops.

The media covered include: water, air, aviation kerosene, methyltrichlorosilane, liquid titanium tetrachloride, carbon dioxide (including critical), deionized water, liquid propylene, mixed gases, and other gases and liquids, as well as fluids in a critical state.

To adapt to complex industrial environments, some models also support IP67 dust and water resistance and IICT4 intrinsically safe explosion protection. In addition to standard analog input/output interfaces, it also supports 485/232 interfaces, using the standard Modbus RTU communication protocol.

Technical Support

A Coriolis mass flow meter is an instrument that uses the Coriolis effect to measure the mass flow rate of fluids.

Coriolis flow meters operate based on the principles of kinematics. When the process fluid enters the sensor, the fluid separates. During measurement, a drive coil excites the pipes to vibrate in opposite directions at their natural resonant frequencies. As the pipes vibrate, the voltage generated on each sensor forms a sine wave. This represents the motion of one pipe relative to another. The time lag between two sine waves is called Delta-T, and this value is proportional to the mass flow rate.

The Coriolis effect refers to the lateral temperature difference perpendicular to both the flow direction and the direction of the magnetic field generated when fluid flows through a laterally constrained pipe. This difference arises from the interaction between the magnetic field induced by the current flowing through the laterally constrained conductor and the electrons and ions in the fluid.

Limited Measurement of Low-Density Media and Low-Pressure Gases: Due to the working principle of Coriolis mass flow meters, measuring low-density media and low-pressure gases may present certain difficulties or limitations.

Sensitive to Vibration: Coriolis mass flow meters are quite sensitive to external vibrations, which may affect their measurement accuracy and stability. Therefore, special attention needs to be paid to vibration protection measures during installation and use.

High Price: Compared to other types of flow meters, Coriolis mass flow meters are generally more expensive and are mostly used in applications with high measurement requirements.

Pipe Diameter Limitations: Currently, the maximum pipe diameter for Coriolis mass flow meters is DN200. For measuring fluids in larger pipe diameters, other types of flow meters may be required.

The accuracy range of Coriolis Mass Flowmeters is typically ±0.1% to ±0.5%, with most high-accuracy models reaching ±0.1% to ±0.2%.

Yes, Coriolis mass flow meters require periodic calibration. For trade applications, they are typically calibrated annually. For internal use, calibration may be optional depending on the specific circumstances.

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Sino-Inst specializes in manufacturing gas/liquid mass flow meters and controllers. Our instruments are designed according to customers’ actual operating conditions and needs, and are widely used in various industries for precise measurement and control of gas/liquid mass flow rates.

Our independently developed Coriolis mass flow meter/controller utilizes the Coriolis principle, ensuring its performance remains unaffected even under changes in pressure, temperature, density, conductivity, and viscosity. It is suitable for various types of gases, liquids, and critical fluids.

Compared to commonly available Coriolis flow meters on the market, the SI-20FE is smaller and more compact, facilitating installation in space-constrained environments and making it suitable for applications with smaller connection pipe diameters. Currently, its flow range covers 0.05 g/h to 1000 kg/h.

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SI-20FE Coriolis Mass Flow Controller/Flow Meter - Sino-Inst

Coriolis mass flow controllers are highly regarded for their measurement accuracy and insensitivity to fluid properties. Conventional Coriolis flow meters are used for measuring higher flow rates. The SI-20FE successfully applies this technology to very low flow rate measurements, integrating a PID controller and batching functionality for flow control or quantitative feeding.

Product SKU: SI-20FE Coriolis Mass Flow Controller/Flow Meter

Product Brand: Sino-Inst

Product In-Stock: InStock

Editor's Rating:
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