Measuring Parameter
precipitation
wind direction
wind velocity
air temperature
air humidity
soil temperature
evaporation
atmospheric pressure
radiation
Weather Station in the Emirates Weather Station in the desert
Weather Station Weather Station in Italy
in the Czech Republic
Meteorological Sensors
Worldwide climatic data are collected for calculating hydrology and energy balance. These data form the basis for hydrological predictions, water balance research and resource management.
An automatic weather station (AWS) stores the data continuously in a data logger (e.g. MDS-5) which enables measurements from remote areas via GSM, GPRS, Radio, W-LAN, or Satellite transmission. SEBA sensors correspond to the standards of the World Meteorological Organization (WMO) and our concepts are continuously improved.
The configuration of an AWS may vary due to the purpose of the system but typically consists of a weather-proof enclosure containing the data logger (e.g. MDS-5), rechargeable battery and telemetry (optional), meteorological sensors, solar panels and a mast.
MDS-5
Data Logger for Registration of Meteoroligical Values
technical data:
protection class: IP20
power supply: 3.6V lithium battery internal
resp. 6...24V battery external
real time clock: RTC +/- 1min/month
interfaces: 1xRS232, 1xRS485, 1x USB
memory: 1MB serial flash memory
(480,000 measuring values)
display: LC-display, 8-digits
key pad: 3x plastic foil key pad
power consumption: in standby mode: 20 μA
AD-converter: 16bit with input amplifier: max. 8 uni-polar
channels (0...20mA resp. 0...2.5V) or 4 bi-polar
channels (passive transducers) or mixed-up
impulse inputs: 1x BCD or 1x Graycode
optionally:
-2x RS232-interface and 2x RS485-interface
-Bluetooth-connection
-integration of GSM/GPRS-Modem Type 740
-digital output: galvanically isolated (alarm management)
-analogue output: 4...20mA galvanically isolated
(Online-channels)
Combined Ultrasonic Wind Sensor
Wind Direction Sensor / Wind Speed Sensor
technical data:
output frequency: 1, 2, 4Hz outputs per second
wind speed measuring range: 0-60 m/s, resolution 0,01 m/s
wind direction measuring range: 0-359° no dead band, resolution 1°
operating temperature: -35 oC to +70 oC
digital interfaces (optional): RS232 / 422 / 485 / SDI-12
NMEA O/P (Protokoll): yes
analogue outputs (optional): 2
protection class: IP65
material: Luran (plastic)
dimensions/hole for mast fixing: 142 x 160 mm / 44,45 mm
Wind
Wind Direction Sensor / Wind Speed Sensor
technical data:
Wind speed sensor: measuring range: 0,5 - 35 m/sec.
output: 0 - 4,67 mA at a burden of 50 Ohm
dimensions: 320 mm diameter, height 250 mm
Wind direction sensor:angle of rotation 0 - 359°
output: 0 - 1V or 0 - 5kOhm
dimensions: 820 mm diameter, 430 mm total height
Wind combined sensor: measuring range and output see above
dimensions: .820 mm, 665 mm total height
temperature-
operation range: -35 °C up to +80 °C
material: aluminium
hole for mast fixing: 50 mm diameter
Air humidity -/ Air temperature sensor
For measuring the relative air humidity and - temperature (also available as separate sensors)
technical data:
humidity temperature voltage/current-converter
measuring: 0 - 100 % r. h. -40 °C up to +60 °C -
ranges: other ranges on request other ranges on request other ranges on request
principle: capazitive resistive voltage/current-converter
resolution: 0,1 % r.F. 0,1 °C analogue
accuracy: ±2 % (10% - 96% r.h.) ±0,3 °C (20 °C) 0,15 %
operationtemperature:
-40 °C up to +60 °C -40 °C up to +60 °C -40 °C up to +60 °C
power supply: 4,6 - 24 V DC 4,6 - 24 V DC 8 - 24 V DC
output: 0 - 1 V 0 - 1 V 4 - 20 mA
mounting bracket
material: aluminium aluminium IP65 in protection housing
dimensions: Ø 12, length 116 mm Ø 12, length 116 mm 160 mm x 80 mm x 55 mm
Atmospheric pressure
Pressure sensor, for measuring the atmospheric pressure between 700 - 1200mbar
technical data:
voltage output current output
accuracy: relative error 1% relative error 1%
operatingtemperature:
-40°C up to +85°C -40°C up to +60°C
power supply: 5 - 24 V DC 10 - 24VDC
sensitivity/output: 87mV/hPas at 12VDC 0,04 mA/hPas (0 - 20mA)
0,032 mA/hPas (4 - 20mA)
housing: aluminium - cast housing IP65 plastic housing
dimensions: 62mm x 56mm x 33mm 160mm x 80mm x 55mm
Soil temperature
Soil temperature sensor, for measuring the soil temperature in different depths
technical data:
material: plastic operation depths: 20 / 30 / 60 / 110 / 160 / 210 / 310 mm
accuracy: 0,3 °C measuring range: -30 °C up to +70 °C or other ranges
power supply: 5 - 24 V DC output: 0 - 100 mV
Precipitation
Rain gauge type RG 50
High accurate rain gauge with impulse output, pick-up for datalogger-systems and remote transmission
installations, unilateral ball-beared tipping bucket with level and levelling screw. Optionally with heating.
technical data:
collecting area: 200cm2
resolution: 1 pulse = 0,1mm precipitation
heating: 17W, 24V, forward break-over point +4°C, overlap +3°C
contact burden: 3W
switch direct voltage: 150V
switch direct current: 0,25A
output: reed-contact impulse (potential free)
tipping bucket: made of plastic material
dimensions: height 346mm, diameter 205mm
weight: 3,9kg
Radiation
Global radiation sensor for measuring the global radiation in spectral range 0,3 - 3μm
technical data:
spectral range: 305..2800nm
temperature: -40°..+80°C
measuring range: 0..2000Wm²
temperature dependence: <0.15%/°C
-1 2 output: approx. 15μV W-1m2
Evaporation
Evaporation pan "Class A"
For measuring evaporation. With lateral float tube. The integrated precision sensor gives an electrical signal,
analogically to the water level of the pan.
technical data:
measuring range: 0 - 150mm output: 0 - 1V optional 0 - 5kOhm
accuracy: 1mm material: V2A anticorrosive steel
temperature- dimensions: Ø 1206,5mm, 254mm height
operation range: 0 up to 70°C float tube: Ø 346mm, 1000mm height
power supply: 5 - 24V
Alternatively available with ultrasonic sensor
Producing Area：Germany