RIKA
Ultrasonic Automatic Weather Station

(Model No. RK900-10)

Introduction:

RK900-10 automatic weather instrument is simultaneously measure the atmospheric temperature, atmospheric humidity, air pressure, wind speed, wind direction, solar radiation, Illuminance/UV, dust concentration and precipitation. Temperature, humidity and air pressure sensor is placed within the radiation shield. Wind speed and direction of ultrasonic rinciple. 24G radar detection on rainfall, which can quickly detect rainfall and rainfall intensity. Internal GPS global positioning module and electronic compass can be mounted to the system to give a good indication of latitude and longitude and relative speed, which can calculate the real and virtual wind speed and direction, and is especially suitable for installation on motion vector, such as special vehicles or vessels, etc.

Features:

• High accuracy, fast response
• Easy to install, all weather measurment
• RS485/RS232/SDI-12 output
• No moving parts, maintenance free
• Use radar measurement of precipitation, accurately reflect the rainfall and start-stop moment
• Can be added the electronic compass, GPS and BDS global positioning module

Applications:

• Unattended meteorological monitoring system
• Mobile meteorological monitoring system
• Electric power safety monitoring
• Solar or wind power generation
• Port and navigation of the ship
• Scenic region
• Meteorological science research

Production Parameters:

• Atmospheric temperature
• Atmospheric humidity
• Atmospheric pressure
• Wind speed
• Wind direction
• Precipitation (Rain/Hail/Snow)
• Solar Radiation
• Illumination
• Ultraviolet (UV)
• Dust concentration (PM2.5, PM10)
• Visibility

Technical Specifications:

• Wind speed
  • Principle: Ultrasonic
  • Range: 0 ~ 60m/s
  • Resolution: 0.01m/s
  • Accuracy: ±2%
• Wind direction
  • Principle: Ultrasonic
  • Range: 0 ~ 359° 
  • Resolution: 1° 
  • Accuracy: ±3°
• Atmospheric Temperature
  • Principle: MEMS
  • Range: -40 ~ +80℃
  • Resolution: 0.1℃
  • Accuracy: ±0.5℃
• Atmospheric humidity
  • Principle: MEMS
  • Range: 0 ~ 100%
  • Resolution: 1%
  • Accuracy: ±3%RH
• Atmospheric pressure
  • Principle: MEMS
  • Range: 150 ~ 1100hPa
  • Resolution: 0.1hPa
  • Accuracy: ±1hPa
• Precipitation (Rain/Hail/Snow)
  • Principle: Radar
  • Range: 0 ~ 200mm/hr
  • Resolution: 0.1mm
  • Accuracy: ±5% (@ wind speed <=5m/s
• Solar Radiation
  • Principle: Silicon-cell
  • Range: 0 ~ 2000W/m²
  • Resolution: 0.1W/m²
  • Accuracy: ±5% (@ Vertical irradiation)
• Illumination
  • Principle: Silicon-cell
  • Range: 0 ~ 200000 lux
  • Resolution: 0.1 lux
  • Accuracy: ±5% (@ Vertical irradiation)
• Ultraviolet (UV)
  • Principle: Silicon-cell
  • Range: 0 ~ 2000W/m²
  • Resolution: 0.1 W/m²
  • Accuracy: ±10%
• Dust concentration (PM2.5, PM10)
  • Principle: Photoelectric scattering
  • Range: 0 ~ 2000 ug/m³
  • Resolution: 1 ug/m³
  • Accuracy: ±10%
• Visibility
  • Principle: Optical
  • Range: 0 ~ 5000m
  • Resolution: 1m
  • Accuracy: ±15%

System parameters

• Power Supply: 12-24VDC
• Output: RS485, RS232, SDI-12
• Communication Protocol: Modbus-rtu or NMEA-183, SDI-12
• Data update cycle: 1s(default), other optional
• Power Comsumption: <5W, auto-heating power: 9W
• Operation Temperature: -40℃ ~ +80℃
• EMC: EN61000-6-3, EN61000-3-3, EN61000-3-2, EN61000-6-1
• Protection level: IP66
• Dimension: Dia. 144*235mm (Dimensions will vary depending on the parameters)
• Main material: ASA, Aluminium alloy base (optional) 

*Wind speed and direction are necessary, and other parameters can be combined freely, GPS/BDS positioning and electronic compass are optional configuration.