TIPPING BUCKET RAIN GAUGE
Model RG (X)
(0.2, 0.5 or 1mm per tip)
These
digital rain gauges provide reliable measurement of rainfall and
rainfall intensity using the tipping bucket principle. The design
includes several features to maintain accuracy of measurement, including
a syphoning device which “smooths” the flow of water through the
system thereby minimising errors associated with varying intensity of
rainfall.
Rainfall is captured in the 203 mm diameter collector funnel and is directed through a delivery pipe to fill a divided tipping bucket device. The bucket is pivoted through its centre and has a preset calibration to tip for 0.2, 0.5 or 1mm of rainfall. When the bucket is “full”, it pivots and empties - this action magnetically closes and opens a reed switch, sending a pulse signal to the data logger or electronic counter. Through this tipping “seesaw” action, the other side of the bucket is aligned to receive the flow from the delivery pipe. This recording and tipping cycle continues with rainfall. Fine stainless steel mesh prevents debris such as dirt and insects from entering the workings of the rain gauge.
The 0.5 mm calibration tip is recommended for most applications. The 0.2 mm version is used where low intensity of rainfall and/or sensitivity of measurement is important.
µSmart Version.
With the addition of the µSmart interface SI-RG, the RG(x) Tipping Bucket Raingauge can be turned into another “Plug and Play” sensor for connection to the µSmart Data logger or can act as an interface between a PC or telemetry and the Rain Gauge. The SI-RG can count and store information for a period of 2 days about the rain gauge. The SI-RG will calculate maximum rain rate, daily total from 9am to 9am as well as the 24 hour total. When connected to the Data Logger the SI-RG can be used to calculate total rainfall in any logging period that is set in the logger. Other features are available and this brochure should be read in conjunction with the µSmart general specification sheet.
