Environment
 
    Automatic Weather Station

Automatic Weather Station

portable AWS for temporary installations


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The Vaisala HydroMet Automatic Weather Station MAWS201 is a portable AWS for temporary installations, featuring the same design as the Vaisala TacMet Tactical Meteorological Observation System MAWS201M for demanding tactical meteorological applications.

Its lightweight aluminium tripod and easy-to-use connectors make it fast to set up. Each leg is adjustable for use on uneven terrain. 

Key Benefits

Field-proven in a wide range of applications

Including but not limited to:

  • Meteorological research
  • Civil defense
  • Environmental impact studies
  • Emergency response
  • Fire weather
  • Waste management

Lightweight, easy-to-transport setup

With 5 basic sensors, a solar panel and a battery the MAWS201 weighs just 15 kg. It can be transported in two lightweight carry cases made of cellular polypropylene (EPP),a lightweight but very rugged material that provides excellent protection. The cases are equipped with handles, hinges, wheels and latches for padlocks.

Extensive sensor options and outputs

The basic suite of sensors typically measures wind, pressure, temperature, relative humidity, and precipitation. In addition, measurements can be taken of e.g. multi-level soil temperature, soil moisture, global and net solar radiation, water level, and temperature. Generic and configurable 16 bit A/D conversion is included in case you want to interface your own sensors. In addition to the standard meteorological and statistical calculations, the extended calculation library also includes evapotranspiration, heat index, forest fire index, wind chill and many others.

Operating Environment
Operating temperature 
−40 … +60 °C (−40 … +140 °F)
Storage temperature
−50 … +70 °C (−58 … +158 °C)
Operating humidity
Operating humidity
Mechanical
Weight Example
Portable system with 3 m (9 ft 10 in) tripod (pressure, temperature/ humidity, and wind sensors)
15 kg (33.07 lb)
Basic Enclosure
Dimensions (H × Ø)
420 × 120 mm (16.54 × 4.72 in)
Weight
3 kg (6.61 lb)
Materials
Anodized aluminum
IP rating
NEMA 4X, IP66
Sensors
Wind 
QMW102/WMS302, WXT530
Pressure
BARO-1QML
Air temperature, relative humidity 
HMP155
Solar radiation
QMS101/SP Lite2, QMS102/CMP3, QMN101/NR Lite2
Precipitation
QMR101, QMR102
Soil/Water temperature
QMT103, QMT107, QMT110
Soil moisture
ML2x
Options and Accessories
Communication modules
DSU232, DSI486
Mains power supply 
QMP213
Solar/Mains power supply
QMP201C
Carrying cases for MAWS201 
QMM110, QMM120
UHF radio modem set 
SATEL3ASET-M2
Compliance
Emissions 
CISPR 32 Class B (EN 55032)
ESD immunity
IEC 61326-1 (EN 61326-1)
RF field immunityIEC 61000-4-3
EFT immunity
IEC 61000-4-4
Surge (lightning pulse)
IEC 61000-4-5
Conducted RF immunityIEC 61000-4-6
Inputs and Outputs
Processor
33 MHz, 32-bit Motorola
A/D conversion
24-bit
Memory
4 MB RAM and 4 MB program
Data logging memory
3.3 MB internal Flash memory
External memory card capacity
2 GB on CompactFlash card
Sensor inputs 10 analog inputs (20 single-ended inputs) 2 counter/frequency inputs Internal channel for pressure sensor BARO-1
Voltage (external powering)
8 … 30 VDC
Power consumption 
< 10 mA / 12 V (typically with basic 5 sensors)
Communication
Serial
Standard 
RS-232 and 2-wire RS-485; SDI-12
Optional 
2 optional plug-in slots for communication modules to increase the number of the serial I/O channels up to 8 pcs Fast serial expansion bus for connecting digital I/O module, for example
Speed
300 … 38 400 bps
Configurable parameters
Speed, start bits, data bits, stop bits, parity, XON/XOFF, and checksum
Ethernet
Standard
IEE 802.3 2 plug-in slots for Ethernet modules DSE101
Powering 
Mains power QMP213
85 … 264 VAC
Mains power QMP201C185 … 264 VAC

1 With 12 W solar panel and 7 Ah backup battery