The mass flow meter is based on the principle of Coriolis Force to realize the direct and precise measurement of the mass flow of fluid without conversion or correction of pressure, temperature, viscosity, density, etc. It is composed of two parts: a sensor unit and a transmitter unit. This instrument is designed and manufactured according to the national standard for intrinsic safety explosion-proof device, and the explosion-proof mark is EX d ib II C T6 Gb.