Description
MAIN FEATURES
The meteorological-evaporimetric station is managed by the MicroMET3 datalogger, which can display, acquire, store, and transmit data remotely. The datalogger has high processing power, allowing it to calculate other measurements such as dew point and evapotranspiration using the Penman Monteith method (FAO-WMO), thus avoiding the use of expensive, maintenance-intensive tank evaporimeters.
ADVANTAGES
- Instruments WMO compliant and Accredia certifiable
- Low consumption and possibility of powering with photovoltaic panel
- No property communication protocol
- Standard text data format (CSV format) compatible with Excel, database and the most common softwares available in the market.
- No connection charges (with GPRS wireless transmission and photovoltaic panel power supply)
- Critical working conditions (presence of salinity, ice, sand, corrosive agents, high temperature excursions, etc…)
- Reliability, long-life and minimum requested maintenance
- High accuracy and resolution of the measure
- Fully italian technology
Specifications
| Model |
mMET3 – Multichannel datalogger |
| I/O Channels |
8 analog inputs (+ 8 option on Expa8 interface): in voltage or current (typ.0…5Vdc or 4…20mA);
2 insulated digital inputs (pulse counter) for sensors with “high” frequency up to 50KHz (anemometers, flow gauges, ecc…) and with “low” frequency output (rain gauges), sensors that requires the time counting (sunshine duration, leaf wetness,...), on/off signal (free-contacts);
1 diagnostic input for battery monitor |
| Power supply |
10…14.4Vdc (typical 12Vdc);
On-board battery charger, input from photovoltaic panel, with battery monitoring (deactivation of the load <10,5Vdc, restart >12Vdc) or power supplier 220Vac/12Vdc |
| Average autonomy of a weather station with 7 measurements |
• >15days: with 12Vdc/7Ah battery, 20W photov. panel, storage: 5’ transmission: 60’
• >30days: with 12Vdc/18Ah battery, 30W photov. panel, storage: 5’ transmission: 60’
|
| Data communication |
Wireless via GSM/GPRS on FTP area
wired via RS232/LAN cable with PC free software for data download
|
| Alarm transmission |
via e-mail using MeteoGraph web (with GPRS data transmission)
|
| Programming |
On site: setting of text file in the SD Card memory
|
| Settable parameters |
• Date and time with NTP synchronization (network time protocol)
• Anemometer and rain gauge constants
• Storage rate (5, 10, 15, 30 or 60’);
• Transmission rate (5, 10, 15, 30 or 60’); |
|
Elaborations
|
Min, max (gust), arithmetic average, standard deviation, turbulence; trigonometric average; sum; diagnostic measure for battery voltage. Calculable measurements (if the weather sensors that allow the calculation are present): Evapotranspiration Et0, TD Dew point temperature, TWB wet bulb temperature |
| Data storage |
Data backup of 500 days with circular storage
|
| IP65 Enclosure (basic version) |
Plastic material Dim.(LxHxP): 250x350x160mm, key closure and universal brackets for mounting on the pole |
