DRH model is a type of rotating vane flow meter. This device is used to measure and monitor low viscous liquids.
The unit operates in accordance to the rotating vane principle. It consists of a magnet that can fit in the vane and sealed hermetically from the medium transfers. It also has a hall-effect sensor mounted in the housing. The sensor then converts the rotary motion. The electronic units converts the signal to an analogue output.
The unit can be adapted to prevail plant conditions with a 360° connections. It is used to monitor cooling water, in agricultural machinery and PCB board industry.