Description
- D model is a large range of flow velocity apparatus, used for river, hydropower station, spillway, pressure pipe to the dam of the high speed measurement folded, and reservoir, lakes and rivers in the general, low speed measurement. D model velocity apparatus compact structure, flexible rotation, waterproof "performance is very good./
- Second, the main technical indexes./ 1. Screw propeller rotary diameter: 120 mm./ 2. Screw propeller hydraulic pitch: b = 250 mm, left-lateral./ 3. Screw propeller material: PC engineering plastic./ 4. Instruments up speed: V0 than 0.025 m/s./ 5. Speed range: 0.04 to 10 m/s./
- 6. The critical speed: Vk than 0.14 m/s/ 7. Check formula mean square error: 1.5% or m/ 8. Instruments work water depth: 0.16 m than H than 50 m/ 9. Between the two signals RPM: 1 turn a signal (1 turn two signal please further order)/ 10. Contacts capacity: current than 400 mA/
- Voltage than 4.5 V (inductance circuits should add fire extinguishing spend circuit)/ 11. Continuous working hours: 8 h (sediment concentration 50 Kg/m3 velocity 5 m/s conditions)/ 12. Instruments work water temperature: never icy water temperature to 40C/ 13. To adapt to the sediment concentration: more than 50 kg/m3/
GOWE Velocity measuring instrument, the flow velocity apparatus Ls series Type D
