FLOW (Beijing Fross Technology Co., Ltd.) specializes in manufacturing gas/liquid mass flow meters and controllers. The instruments are designed according to the actual working conditions and needs of customers, and are widely used in various industries for precise measurement and control of gas/liquid mass flow.

Conventional Coriolis flowmeters are used for measuring higher flow rates. The CR series has successfully applied this technology to very low flow measurement, and integrates PID controllers and batch functions internally to achieve flow control or quantitative feeding.

Performance and principle

The Coriolis mass flowmeter is highly regarded for its measurement accuracy and independence from fluid characteristics. The CR series includes a uniquely shaped single loop sensor that forms part of the oscillation system. When fluid flows through the sensor circuit, the Coriolis force causes a variable phase shift, which is detected by the sensor and transmitted to the DSP processor on the integrated circuit board for computation. The output signal generated by this variable phase shift is strictly proportional to the actual mass flow rate, achieving unparalleled ultra-high performance even under changes in working conditions such as pressure, temperature, density, conductivity, and viscosity.

The CR series simultaneously measures mass flow rate, fluid density, and temperature and outputs them.

The CR series quality flow measurement instruments offer two levels of accuracy: ± 0.25% for liquid measurement or ± 0.5% for gas measurement. Capable of meeting the needs of most customers, it can be applied to various laboratory experiments as well as complex industrial environments.

In order to adapt to complex industrial environments, we also have some models that support IP67 level dust and water resistance, as well as IICT4 intrinsic safety explosion-proof. In addition to standard analog input/output interfaces, it also supports 485/232 interfaces and the communication protocol is the standard Modbus RTU protocol.

CR product features

Direct measurement of mass flow rate

Accuracy: Gas can reach ± 0.5% F.S, liquid can reach ± 0.25% without dead zone

Fast response speed, fast adjustment speed, high precision, and good repeatability

Integrated PID controller for flow regulation with high cost-effectiveness

High reliability and long lifespan

No thermal drift, negligible temperature shift and time drift can simultaneously output fluid density and temperature

High viscosity fluids and high-density gases can be measured without significant environmental vibration