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Vaisala HydroMet Automatic Weather Station MAWS201
Overview
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. The MAWS201 is field-proven in a wide range of applications:
- Meteorological research
- Civil defense
- Environmental impact studies
- Emergency response
- Fire weather
- Waste management
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.
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.
Technical Specifications
Vaisala Data Logger QML201| Processor | 32-bit Motorola |
| A/D conversion | 24bit |
| Data logging memory | |
| Internal | 3.3 MB internal flash memory |
| Optional | Up to 2GB on optional, compact flash memory card |
| Sensor inputs | |
| Analog | 10 analog inputs (20 single-ended inputs) |
| Frequency | 2 counter/frequency inputs |
| Internal channel for BARO-1 | pressure transducer |
| Accuracy over operating temperature range | -50 °C ... +60 °C |
| Temperature (Pt-100) measurements | Range -50 °C ... +60 °C |
| Uncertainty across measured temperature | Better than ± 0.04 °C |
| Voltage measurement | |
| ±5 V range | Better than 0.06 % reading ± 100 µV |
| ±2.5 V range | Better than 0.04 % reading ± 50 µV |
| ±250 mV range | Better than 0.06 % reading ± 6 µV |
| ±25 mV range | Better than 0.06 % reading ± 5 µV |
| Frequency measurements | 0.003 % + resolution 241 nsec. (up to 4 kHz) |
| Common mode range | +5 V / -4 V |
| Real-time clock | Accuracy better than 20 sec/month |
| Serial communication | |
| Standard | RS-232 and RS-485 Two (2) optional plug-in slots for communication |
| Optional | modules for increasing the number of serial I/O channels up to 8 pcs |
| Speed | 300 ... 19,200 bps |
| Parameters | Configurable speed, start bits, data bits, stop bits, parity, XON/XOFF and check-sum |
| External powering | |
| Voltage | 8 ... 30 VDC recommended (30 V max.) |
| Power consumption | < 10 mA/6 V (typically with 5 basic sensors) |
| Powering | |
| Mains power QMP213 | 85 ... 264 VAC |
| Mains power QMP201C | 85 ... 264 VAC with 12 W solar panel and 7 Ah back-up battery |
| Environmental | |
| Temperature | |
| Operating | –40 ... +60 °C |
| Storage | –50 ... +70 °C |
| Humidity | 0 ... 100 % RH |
| Emissions | CISPR 22 class B (EN55022) |
| Immunity | |
| ESD immunity | IEC 61000-4-2 |
| RF field immunity | IEC 61000-4-3 |
| EFT immunity | IEC 61000-4-4 |
| Surge (lightning pulse) | IEC 61000-4-5 |
| Conducted RF immunity | IEC 61000-4-6 |
| Sensors | |
| Wind | QMW101/110 |
| Pressure | BARO-1 |
| Temperature, relative humidity | HMP155 |
| Solar radiation | QMS101, QMS102, QMN101 |
| Precipitation | QMR101/102 |
| Soil/water temperature | QMT103, QMT110, QMT107 |
| Soil moisture | ML3x |
| Multi-weather sensor | WXT520 |
| Physical | |
| Weight example: | |
| Portable system with 3 m tripod | 15 kg |
| (pressure, temperature/humidity and wind sensors) | |
| Basic enclosure | |
| Material | Anodized aluminum |
| Ingress protection | NEMA 4X, IP66 |
| Dimensions | Diameter 120 mm, height 420 mm |
| Weight | 3 kg |
| Options and accessories | |
| Communication modules | DSU232, DSI485A, DSI486 |
| Mains power supply | QMP213 |
| Solar/mains power supply | QMP201C |
| Carry cases for MAWS201 | QMM110, QMM120 |
| UHF radio modem set | SATEL3ASET-M2 |
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