The RG rain gauge is one of the hydrological and meteorological instruments used to measure the nature of rainfall, or as it is called precipitation. It is measuring the amount of water that falls to the earth’s surface originating from atmospheric moisture, either in a liquid state or in a solid. This sensor transforms the precipitation into a pulsed output signal.
Mode of operation
The precipitation is captured in the 200mm diameter collecting funnel and passed through a distribution pipe to fill a tip bucket device made of injection molded ABS. The bucket pivots through its center and has a pre-set calibration to tip away from 0.2 mm of rain. Once the bucket is “full”, it pivots and empties. This action magnetically closes and opens a reed switch, sending a pulse signal to the datalogger. As a result of this tipping, the other side of the bucket is aligned to receive the flow from the distribution pipe. This cycle of registration and tipping continues with the rain.
|Sensor Type||Rainfall collector made of high strength ABS, and a tipping bucket with low resistance|
|Measured rainfall intensity||Max: 4mm/min|
|Allow rainfall intensity||Max: 8mm/min|
|Operating temperature||0 … 60 °C|