Sensor Inalámbrico HOBOnet Davis de Velocidad y Dirección del Viento

RXW-WCF-868

El sensor inalámbrico HOBOnet de velocidad y dirección del viento registra la velocidad del viento, la ráfaga de viento y la dirección del viento. Los sensores inalámbricos HOBOnet comunican los datos directamente a la estación meteorológica RX3000 o los transmiten a través de otros sensores inalámbricos a la estación central. Están preconfigurados y listos para ser implementados, y se accede a los datos a través de HOBOlink, la innovadora plataforma de software basada en la nube de Onset.

Características destacadas


Características del sensor
    Proporciona la velocidad media del viento, la ráfaga de viento más alta de 3 segundos y la dirección media del viento para el intervalo de medición.
    Diseñado para cumplir las directrices de la Organización Meteorológica Mundial (OMM)

Funciones inalámbricas
    Tecnología de autocuración de malla inalámbrica de 868 MHz
    Alcance inalámbrico de 450 a 600 metros
    Hasta 50 sensores inalámbricos por RX3000
    Pulsando un simple botón se conecta a la red inalámbrica HOBOnet
    Memoria integrada para garantizar que no se pierdan datos
    Funciona con pilas AA recargables y panel solar integrado

Sensor

 

Wind Speed/Gust

Wind Direction

Measurement Range

0 to 76 m/sec (0 to 170 mph)

0 to 355 degrees

Accuracy

±1.1 m/sec (±2 mph) or ±5% of reading,
whichever is greater

±7 degrees

Resolution

0.5 m/sec (1.1 mph)

1.4 degrees (0 to 355 degrees)

Starting Threshold

≤1 m/sec (2.2 mph)

1 m/sec (2.2 mph)

Turning Radius

108 mm (4.25 in.)

Approximately 135 mm (5.25 in.)

Measurement Definition

Cup revolutions are accumulated every three seconds for the
duration of the logging interval
Wind speed: Average speed for the entire logging interval
Gust speed: The highest three-second wind recorded during the logging interval

Unit vector averaging used; vector components for each wind measurement are calculated every three seconds for duration of logging interval

 

 

Wireless Mote

Operating Temperature Range

-25° to 60°C (-13° to 140°F) with rechargeable batteries
-40 to 70°C (-40 to 158°F) with lithium batteries

Radio Power

12.6 mW (+11 dBm) non-adjustable

Transmission Range

Reliable connection to 457.2 m (1,500 ft) line of sight at 1.8 m (6 ft) high
Reliable connection to 609.6 m (2,000 ft) line of sight at 3 m (10 ft) high

Wireless Data Standard

IEEE 802.15.4

Radio Operating Frequencies

RXW-WCF-900: 904–924 MHz
RXW-WCF-868: 866.5 MHz
RXW-WCF-922: 916–924 MHz

Modulation Employed

OQPSK (Offset Quadrature Phase Shift Keying)

Data Rate

Up to 250 kbps, non-adjustable

Duty Cycle

<1%

Maximum Number of Motes

50 motes per one RX Wireless Sensor Network

Battery Type/ Power Source

Two AA 1.2V rechargeable NiMH batteries, powered by built-in solar panel or two AA 1.5 V lithium batteries for operating conditions of -40 to 70°C (-40 to 158°F)

Battery Life

With NiMH batteries: Typical 3–5 years when operated in the temperature range -20° to 40°C (-4°F to 104°F) and positioned toward the sun (see Deployment and Mounting), operation outside this range will reduce the battery service life With lithium batteries: 1 year, typical use

Memory

16 MB

Dimensions

Sensor: 470 x 191 x 121 mm (18.5 x 7.5 x 4.75 in.)
Cable length: 3 m (9.8 ft)
Mote: 16.2 x 8.59 x 4.14 cm (6.38 x 3.38 x 1.63 inches)

Weight

Sensor and cable: 1.332 kg (2 lb, 15 oz)
Mote: 223 g (7.87 oz)

Materials

Sensor: Polycarbonate wind cups, sealed stainless steel bearing, UV-resistant ABS wind vane and black-anodized aluminum anemometer arm
Mote: PCPBT, silicone rubber seal

Environmental Rating

Sensor: Weatherproof
Mote: IP67, NEMA 6

Compliance Marks

Federal Communication Commission     RXW-WCF-900
European Union Compliance     RXW-WCF-868
Australia and New Zealand Complicance     RXW-WCF-922

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