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RXW Silicon Pyranometer Sensor

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Produktnummer: RXW-LIB-868 Kategori:

The HOBOnet Wireless Solar Radiation (Silicon Pyranometer) Sensor is calibrated to measure light intensity for frequencies relevant for solar radiation. HOBOnet Wireless Sensors communicate data directly to the RX3000 weather station or pass data through other wireless sensors back to the central station. They are preconfigured and ready to deploy, and data is accessed through HOBOlink, Onset’s innovative cloud-based software platform.

Highlighted Features

Sensor Features

  • Measurement range of 0 to 1280 W/m2 over a spectral range of 300 to 1100 nm
  • Enclosed in an anodized aluminum housing with acrylic diffuser and O-ring seal

Wireless Features

  • 900 MHz wireless mesh self-healing technology
  • 450 to 600 meter (1,500 to 2,000 feet) wireless range and up to five hops
  • Up to 50 wireless sensors per RX3000
  • Simple button-push to join the HOBOnet wireless network
  • Onboard memory to ensure no data loss
  • Powered by rechargeable AA batteries and built-in solar panel

In what environment does this sensor operate?

This sensor operates in an outdoor environment.

What measurements does this sensor support?

The RXW-LIB-xxx sensor supports the following measurements: Evapotranspiration, Light Intensity and Solar Radiation   A complete system requires at least one HOBO RX3000 Remote Monitoring Station, a HOBOnet Wireless Manager (RXMOD-RXW-xxx), and a HOBOnet Wireless SensorHOBOnet Wireless Repeaters (RX-RPTR-xxx) can be added to extend the range.

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Sensor

Measurement Range 0 to 1280 W/m2
Spectral Range 300 to 1100 nm
Accuracy Typically within ±10 W/m2 or ±5%, whichever is greater in sunlight; Additional temperature induced error ±0.38 W/m2/°C from 25°C (0.21 W/m2/°F from 77°F)
Angular Accuracy Cosine corrected 0 to 80 degrees from vertical (see Plot B); Azimuth Error <±2% error at 45 degrees from vertical, 360 degree rotation
Resolution 1.25 W/m2
Drift <±2% per year

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-LIB-900: 904–924 MHz
RXW-LIB-868: 866.5 MHz
RXW-LIB-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: 4.1 cm height x 3.2 cm diameter (1.61 x 1.26 inches)
Cable length: 2 m (6.56 ft)
Mote: 16.2 x 8.59 x 4.14 cm (6.38 x 3.38 x 1.63 inches)
Weight Sensor and cable: 109 g (3.85 oz)
Mote: 223 g (7.87 oz)
Materials Sensor: Anodized aluminum housing with acrylic diffuser and O-ring seal
Mote: PCPBT, silicone rubber seal
Environmental Rating Sensor: Weatherproof
Mote: IP67, NEMA 6
Compliance Marks Federal Communication Commission     RXW-LIB-900
European Union Compliance     RXW-LIB-868
Australia and New Zealand Complicance     RXW-LIB-922