Purpose and Characteristics

The LS25-3C rotary propeller flowmeter is a new modified instrument that adopts the principle of magneto electric conversion, non-contact measurement, multiple signal acquisition, high sensitivity, good waterproof and sand proof performance, compact instrument structure, and is a large-scale flowmeter. Used for measuring high, medium, and low flow velocities in general rivers, reservoirs, lakes, estuaries, hydropower stations, and spillways. Equipped with HR type flow velocity measuring instrument.

Specification

1. Hydraulic pitch of propeller: K=250mm

2. Speed measurement range: 0.04-10m/s

3. Critical speed: Vk ≤ 0.12m/s. Starting speed of the instrument: V0≤0.035m/s

4. Mean square deviation: M ≤± 1.5%

5. Rotation speed between two signals: N=1/4 (4 signals per instrument rotation)

6. Working water depth: above 0.2m

7. Signal reception and processing: HR-2 flow velocity measuring instrument (adapted to linear relationships) can measure point flow velocity and point flow rate.

8. Power supply: DC6V (four No. 5 batteries)

9. Operating environment temperature: -10 ℃~45 ℃