supply installation testing and commissioning of radar based velocity type fm at raw water channel for hcc clarifiers at chandrawal water works-ii-supply, installation, testing, commissioning of velocity based flow meter (model fl 432) which can measure the flow with product of velocity and level on continues basis to be mounted on open channel system and should simultaneously read both velocity and level to calculate flow/discharge. the system characteristics are :- 1. non-contact measurement, low power consumption, small beam angle2. standard rs 485 modbus communication3. convenient installation4.flow velocity and water level output in one.5. supply voltage: 12 vdc,6. static current less than equals to 1 ma (@12v),7. operating current less than equals to 100ma (@12v)8. water level range: 15m (range optional 30m/45m),9. water level accuracy 3mm10. water level resolution: 1mm11. water level radar frequency: 26 ghz12. water level radar beam angle: 10 degree13. flow velocity measurement range: 0.5 - 21m/s14. flow velocity accuracy: 8.8mm/s15. flow velocity resolution: 1 mm/s16. flow velocity radar transmission frequency: 24 ghz17. flow velocity radar beam angle: 12 degree x 12 degree18. water surface distance: 0.5 - 35 m19. operating temperature: - 35 to 60 degree celsius20. storge temperature: -40 to 60 degree celsius21. working humidity less than equals to 95%22. application occasions: static water or moving water23. acquisition interval: 5s to 24 hours can be set24. digital interface: rs 485modbus communication protocol25. wiring port: m20* 1.5x2, make: eipmake of flowmeter : abb/forbes marshall/siemens/djb approved makes