Measuring principle: The instrument is designed according to the flow velocity area measurement principle of the open channel flow measurement, and the flow rate can be obtained by measuring the flow rate. Q=V·S (S is the sectional area) 1. Flow rate measurement: When measuring the flow rate, the propeller-type rotor current meter is rotated by the water and the built-in signal device generates a revolution number signal. The flow rate is calculated by the following formula: KN V=———————— + C( m/s ) T Where: V: mean flow velocity ( m/s ) during the measurement period K: blade hydraulic pitch C: flow meter constant T: duration of flow (in units of S) N: number of signals in period T When the instrument is used, K and C are all constants. When measuring the flow, T and N can be measured to determine the flow rate. 2. Flow calculation: Flow rate measurement According to the flow velocity area measurement method for open channel flow, the flow rate is first multiplied by the area of ​​the cross section to obtain the flow rate. Electrolytic manganese flakes, Electrolytic manganese metal,Pure electrolytic manganese flakes,Metallic manganese flakes ZHEN AN INTERNATIONAL CO., LIMITED , https://www.zhenangroup.com