Niederschlagssensoren / RainVUE20
RainVUE20 SDI-12 Niederschlagssensor mit Aluminum -Auffangtrichter
Einfacher und robuster Digitalsensor
Genauigkeit besser als Anforderungen der WMO
wetter wasser energie gas flux and turbulence bauwerke boden

Überblick

Der RainVUE™️20 ist ideal für viele hydrologische oder meteorologische Anwendungen wie Wetterstationen und Hochwasserwarnsysteme. Der RainVUE™️20 ist eine SDI-12 Regenkippwaage, die erste der RainVUE Sensorfamilie. Moderne Algorithmen und digitale Signalverarbeitung im Sensor kompensieren Fehler durch hohe Regenintensitäten und bieten akkurate Niederschlagsmessungen. Durch die aerodynamische Konstruktion des Aluminium-Auffangtrichters wird der Verlust an aufgefangenem Niederschlag durch Wind minimiert. Der Kunde kann aus verschiedenen Kabellängen wählen und <!--und die Auflösung von 0.01 in. oder 0.1 mm-->.

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Funktionen und Vorteile

  • Pulverbeschichteter Aluminium Trichter für Einsatz in jeder Umgebung
  • Extrem robust und vielseitg einzusetzen - für anwendungen, bei denen Genauigkeit und Verfügbarkeit der Daten kritisch sind
  • Einzigartige aerodynamische Form zur Minimierung von Windeffekten und bessere Genauigkeit
  • Misst Niederschlagsintensitäten bis zu 1500 mm/h (60 in./h)
  • Entspricht Vorgaben der WMO für die Auffangfläche
  • Digitale Datenverarbeitung korrigiert Fehler durch starke Regenintensitäten bis zu 1500 mm/h (60 in./h)
  • Neigungsmessung für Diagnose über Fernverbindung
  • Interne Temperaturmessung
  • Einfaches Ausrichten mit externer Libelle
  • Verstellbare Füße

Bilder

View of the 39668 funnel filter installed in a RainVUE precipitation sensor

Technische Beschreibung

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%. The RainVUE™️20 also includes a microprocessor that corrects for rainfall intensity and outputs an SDI-12 signal.

Spezifikationen

Sensor Type Tipping bucket with magnetic reed switch
Material
  • 2 mm-thick powder-coated aluminum (for main collector body)
  • LM6 marine-grade aluminum (for base)
Output SDI-12 version 1.4
Sensor Configuration SDI-12 or USB
Operating Temperature Range
  • 1° to 70°C (liquid precipitation only)
  • -40 to +70°C (including melting snow)
Power Requirements 6 to 18 Vdc
Current Drain
  • 0.8 mA or 1 mA (active)
  • 0.07 mA (quiescent)
Internal Battery 240 mAh lithium battery (provides up to 15 days of continual operation after power loss; battery will last longer under ideal conditions)
Response Time
  • 0 s (for M0! command)
  • 1 s (for M1! command)
Measurement Uncertainty
  • Note: Accuracy over the rain intensity range requires a mechanical calibration that is within 1% at a 1 in./h intensity.

    RainVUE™20 sensors are calibrated at the factory to meet this specification but should be verified prior to deployment.
  • 1° (tilt)
  • 0.25°C (temperature)
  • 0.5 V (supply voltage)
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)
WMO Compliant No

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
  • 3.08% at 0 to 20 mm/h intensity (0 to 0.88 in./h intensity)
  • 3.6% at 20 to 600 mm/h intensity (0.8 to 23.6 in./h intensity)
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)
WMO Compliant Yes

Kompatibel mit

Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.

Datenlogger

Product Compatible Note
CR1000X
CR300
CR3000
CR350
CR6
CR800
CR850

Miscellaneous

Product Compatible Note
CR310

Additional Compatibility Information

The RainVUE™️20 is compatible with all modern data loggers and retired data loggers that support SDI-12 (CR10X, CR200).

Dokumente

Downloads

RainVUE-Series Example Program v.1 (2 KB) 21-10-2020

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.

RainVUE OS v.2.02 (470 KB) 14-03-2022

Current Operating System for the RainVUE 10 and RainVUE 20. Requires the Device Configuration Utility and a USB micro cable to update the OS.

Liste der Änderungen