Air temperature and relative humidity
Hygro-thermo sensor compact
The unit is used for measuring the air temperature and the humidity two meters above surface. The sensors are a capacitive element and a Pt 100 thermo couple.
They are installed in an rain and radiation protective housing wich minimises mismeasurement. The housing is also forced ventilated to prevent the formation of a so called micro-clima inside.
| Metering range humidity: | 0...100% r.H. (±2%) |
|---|---|
| Metering range Temperature: | -30...+70°C (±0,1K) |
Air pressure
Barometer B-278-1T
For measuring the air pressure an capacitive ceramic absolute-pressure sensor is used. To prevent negative environmental influences the sensor is direcly installed in the datalogger housing.
| Metering range: | 800...1060hPa (±0,3hPa @20°C) |
|---|---|
| Temperature range: | -30...+70°C (±0,1K) |
Wind speed
Windspeed sensor 4.3303.22.008
For measuring the horizontal Wind speed component a semi-shell anemometer is used. The unit is build as a inerta-reduced ball-bearing triple-armed semi-shell star made of aluminium. The rotation is converted to a digital signal by an optoelectronical sensor. The unit could be heated in winter period.
| Measureing range: | 0,5...75 m/s (± 2%) |
|---|---|
| Resolution: | 0,05 m |
Wind direction
Wind direction sensor 4.3121.32.000
For measuring the horizontal Wind direction component a ball bearing aluminium vane is used. Every 2ms a digital signal is generated by a optoelectronical angle encoderer (8-bit parallel 2,5° resolution).
| Measuring range: | 0...360° |
|---|---|
| resolution: | 2,5° |
Global radiation
Pyranometer CSD 6
For measuring the global radiation a pyranometer is used. Sunlight impinges on a kind of solar cell, that produces a voltage analogue to the intense of the radiation. this voltage is calculated in a value by the datalogger.
| Measuring range: | 0...2000 W/m² |
|---|---|
| Spectral range: | 310...2800 nm |
Sunshine duration
Precipitation
Precipitation status
Soil temperature
Temperature sensor 2.1235.00.010
A PT100 thermocouple is positioned 5cm above surface level so the laminar layer temperature could be measured.
| Measuring range: | -30...+100°C |
|---|---|
| Accuracy: | 0,1K @0°C |