The RainVUE™️20 is ideal for many hydrological or meteorological applications such as weather stations and flood warning systems. The RainVUE 20 is an SDI-12 tipping bucket rain gage in the RainVUE family of products. Advanced algorithms and digital processing within the sensor compensate for errors caused by high-intensity rain and provide accurate precipitation and intensity measurements. Constructed of an aerodynamic powder-coated aluminum funnel, the RainVUE 20 is robust and minimizes the amount of liquid precipitation that is lost due to the effects of wind. This rain gage offers the user flexibility with the option to select from a series of set cable lengths or a user-defined cable length.Read More
The RainVUE 20 funnels rainfall through a stainless-steel gauze filter that traps and removes debris. The rainfall flows through a nozzle into one of the two halves of the tipping bucket. The internal tipping bucket assembly rotates around precision, rolling pivot bearings. It tips when the first bucket fills to a fixed calibrated level, and then the balance arm moves the second bucket under the funnel. A magnet attached to the balance arm actuates a reed switch as the bucket tips.
The aerodynamic design of the RainVUE 20 prevents wind from carrying the rainfall away from the collecting vessel. With traditional cylindrical rain gages, wind can reduce the rainfall catch by up to 20 percent. The RainVUE 20 also includes a microprocessor that corrects for rainfall intensity and outputs an SDI-12 signal.
|Sensor Type||Tipping bucket with magnetic reed switch|
|Output||SDI-12 version 1.4|
|Sensor Configuration||SDI-12 or USB|
|Operating Temperature Range||
|Power Requirements||6 to 18 Vdc|
|Internal Battery||240 mAh lithium battery (provides up to 15 days of continual operation after power loss; battery will last longer under ideal conditions)|
|Orifice Diameter||20.0 cm (7.87 in.)|
|Collecting Area||314.16 cm2 (48.67 in.2)|
|Height||43.5 to 46.5 cm (17.1 to 18.3 in.) with feet adjustment|
|Weight||6 kg (13 lb)|
0.01 Inch Option
|Measurement Range||0 to 1200 mm/h (0 to 48 in./h)|
|Precipitation Amount Resolution||0.254 mm (0.01 in.)|
|Precipitation Amount Measurement Uncertainty||1% at 0 to 500 mm/h intensity (0 to 19.7 in./h intensity)|
|Precipitation Intensity Range||0 to 1200 mm/h (0 to 48 in./h)|
|Precipitation Intensity Measurement Uncertainty||1% at 0 to 500 mm/hh intensity (0 to 19.7 in./h intensity)|
0.1 Millimeter Option
|Measurement Range||0 to 600 mm/h (0 to 23.6 in./h)|
|Precipitation Amount Resolution||0.1 mm (0.004 in.)|
|Precipitation Amount Measurement Uncertainty||
|Precipitation Intensity Range||0.1 to 600 mm/h (0.004 to 23.6 in./h)|
|Precipitation Intensity Measurement Uncertainty||3.58% at 0 to 600 mm/h (0 to 23.6 in./h intensity)|
Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.
The RainVUE™️20 is compatible with all modern data loggers and retired data loggers that support SDI-12 (CR10X, CR200).
An example CR1000X program uses the M! SDI-12 command to measure the RainVUE10 or RainVUE20 and the XWARA! command to reset the total adjusted rain accumulator to 0.00 annually on October 1.