AWS Automatic Weather Station

AWS0-1 Automatic Weather Station

The new AWS Automatic Weather Station from ICT International provides flexibility, accuracy and value for money.

The AWS is supplied with a preconfigured set of sensors for Air Temperature, Relative Humidity, Barometric Pressure, Wind Speed, Wind Direction, Rainfall, and Solar Radiation or PAR.

The AWS automatically calculates Vapour Pressure Deficit (VPD) and Penman-Monteith Evapotranspiration.

The Weather Station is supplied with a cross arm and basic mounts so it can be attached to any type of customised mast. Alternatively a standard pole mast can be purchased with the system.

Temperature

Units °C
Range -40°C to + 120°C
Resolution 0.01°C
Accuracy +/- 0.3°C
Excitation Voltage 3.3 V

Solar Radiation

Units W m2
Range 0-1750 W m2
Resolution 1 w m2
Accuracy 1 w m2
Excitation Voltage None Passive

Humidity

Units RH%
Range 0-100%
Resolution 0.05%
Accuracy ± 2%
Excitation Voltage 3.3 V

Quantum PAR

Units µmol m-2; s-1
Range Full Sunlight 2,000 µmol m-2 s-1
Resolution 2 µmol m-2 s-1
Accuracy 2 µmol m-2 s-1
Excitation Voltage None Passive

Wind Direction

Units Degrees (°)
Range 0 to 360°
Resolution 1° (0 to 355°)
Accuracy
Excitation Voltage None Passive

Rainfall

Units mm
Range 0-500 mm/hr
Resolution 0.2 mm
Accuracy +/ 3%
Excitation Voltage 3.3 V

Barometric Pressure

Units kPa
Range 50 kPa to 115 kPa
Resolution 0.15 kPa
Accuracy +/- 1 kPa
Excitation Voltage 3.3V @ 5 µA

Wind Speed

Units m/s or km/hr
Range 0-58 m/s (0-209 km/hr)
Resolution 0.45 m/s (1.6 km/hr)
Accuracy +/- 5%
Excitation Voltage None Passive

POWER

Internal Battery Specifications
4.8Ah Lithium Polymer, 4.20 Volts fully charged
External Power Requirements
Bus Power 8-30 Volts DC, non-polarised, current draw is 340mA maximum at 17 volts per logger
USB Power 5 Volts DC
Internal Charge Rate
Bus Power 60mA – 700mA Variable internal charge rate, maximum charge rate of 700mA active when the external voltage rises above 16 Volts DC
USB Power 100mA fixed charge rate
Internal Power Management
Fully Charged Battery 4.20 Volts
Low Power Mode 3.50 Volts – Instrument ceases to take measurements
Discharged Battery 2.90 Volts – Instrument automatically switches off at and below this voltage when no external power connected.
Battery Life varies
  • With a recommended power source connected, operation can be continuous.