LS20B Type Propeller Current Meter

1. Product Introduction

The LS20B Type Propeller High-Velocity Current Meter is a large-range hydrological instrument for measuring flow velocity in rivers. It can be used in water bodies such as rivers, lakes, channels, and reservoirs for various high, medium, and low-velocity measurements. It is also suitable for high and ultra-high velocity measurements in power station pressure pipelines and certain scientific experiments.

2. Technical Parameters

1) Propeller rotation diameter: Φ125mm

2) Propeller hydraulic pitch b: 200mm (theoretical value)

3) Starting speed v0: 0.027m/s

5) Velocity measurement range: 0.03m/s～15m/s

6) Output signal: Magnetic-actuated switch contact on/off signal

7) Signal count per rotor revolution: 2/1 (2 signals per revolution)

8) Switch contact capacity: DC U≤24V I≤120mA

9) Contact operation cycles: 1×10⁷

10) Full-range relative mean square error m: |m|≤1.5% (for v≥vk)

11) Relative error δ: |δ|≤5% (for v＜vk)

12) Operating water environment: Water temperature 0℃～＋40℃, Water depth 0.2m～50m, Suspended sediment concentration ≤50kg/m³

13) Storage environment: Temperature －25℃～＋55℃, Humidity ≤90%