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A simple, quick monitoring and reporting solution that can be used in extreme environments to alert and notify of changing weather conditions
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Overview

The FireHawk 500 incorporates a WeatherHawk 520 weather station with a RF411 radio kit, SP2 solar panel mounted on a rapid deployment tripod. The sensors of the WeatherHawk 520 measure wind speed & direction, barometric pressure, solar radiation, rainfall, air temperature & relative humidity.


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Detailed Description

This rugged sensor system has no moving parts and includes an integral data logger, 3AHr battery pack & wireless 916 MHz spread spectrum radio. Accessories include a mast adapter for masts from 1.75-2.0" ID, a wireless base station w/power supply & antenna. The Weatherhawk 520 are wireless to a host device (PC or server) using fully integrated industrial grade 916 MHz spread spectrum RF communications technology. They also have an RS232 serial data I/O located on the bottom of the weather station, which can be used as a second serial communications port, or for programming and testing the system, or for direct data downloads using a PC or PDA.

Specifications

Weather Station

  • Temperature Range: -40 to +122F (-40 to +50C)
  • Data Storage: 60 days of hourly data 
  • I/O: Direct connection RS232 
  • Optional Wireless RF 
  • I/O Data Rate: 9600 baud 
  • Wireless Frequency: Spread Spectrum 916 MHz 
  • Battery: Integrated 2.9 AHr Lead-Acid GelCel 
  • Charging Voltage: 16 t0 22 VDC 
  • Current Drain: 10 mA w/o heater 
  • 1.1 A with heater 


Sensors

Air Temperature: Capacitive ceramic 

  • Range -60 to +140F (-52 to +60 C) 
  • Accuracy: +/-0.9 F @ -40 to 125 F (+-0.5 C @-40 to 52 C) 
  • Resolution: 0.1 F (0.1 C) 

Relative Humidity: Capacitive thin-film polymer 

  • Range 0-100% 
  • Accuracy: +/- 3% @ 0-90%RH; +/- 5% @ 90-100%RH 
  • Resolution: 0.1% 

Barometric Pressure: Capacitive Silicon 

  • Range: 17.72-32.48 inHg (60-110 kPa) 
  • Accuracy: .015 inHg @+32 to +86 F (+-.05 kPa @0-32 C) 
  • Resolution: .03 inHg @-60 to +140 F (+-.1 kPa @-52 to +60 C) 


Solar Radiation: Silicon pyranometer

  • Spectral Range 300 to 1100 nm 
  • Reproducibility +/-2% 
  • Output .2 mV per W/m^2 
  • Range 0 to 1000 W/m^2 


Temp. Range -40 to 130 F (-40 to +55 C)

Rain: Piezoelectric

  • Collecting Area 9.3 in^2 (60 cm^2) 
  • Range 0 to 7.87 in/hr (0 to 200 mm/hr) 
  • Accuracy: <5% weather="" dependant="" br="">Resolution .001 in (.01 mm) 


Wind Direction: Ultrasonic

  • Azimuth: 0-360 deg 
  • Response Time: 250 ms Accuracy: +- 2 deg 
  • Resolution: 1 deg 


Wind Speed: Ultrasonic

  • Range: 0-134 mph (0-60 m/s) 
  • Response Time: .25 s 
  • Accuracy: +-.67 mph (+- 0.3m/s) or +-2% which ever is greater 
  • Resolution: .22 mph (0.1 m/s)

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