Reliable information of wind movements is a critical requirement for air quality management. Polluting gases and particulates released from elevated industrial stacks disperse by a variety of mechanisms and by the time the pollutants reach ground level their concentration is reduced to a fraction of the emitted level. The extent of dispersion and the resultant ground level concentration (GLC) depends upon local meteorological parameters like wind speed, wind direction, atmospheric turbulence or stability and the mixing height. Reliable local wind data can also help to identify possible sources that could be adversely affecting air quality in an area.

Envirotech Wind Monitoring Systems have been used for past several years all over the country by consultants, industry and researchers to generate micro-meteorological data. Feedback from this large body of users has often led to system upgrades. The WM271 is our latest model Wind Monitor with important new features specifically incorporated for Indian field use.

Features

• Remote Data Download via GSM Modems
• Built-in battery backed power-pack with optional Solar Panel charger enables operation in open fields without Mains Power.
• New Windows XP compatible software allows:
• Export of data to Excel
• Diurnal graphs
• Color Windrose Diagrams
• Graphs & Windroses can be saved as a picture for inclusion in reports & presentations.

Key Specification

Wind Speed :	Envirotech WS-10 range 0 to 100 Km/hr.
Wind Direction :	Envirotech WD10 range 0 to 360 degrees with 1 degree resolution
Temperature & RH :	Envirotech WT10 range 0 to 50 C with resolution of 0.1 C and 0 to 100% RH with 1% resolution.
Solar Radiation :	Li-Cor, USA Solar Radiation Sensor
Barometric Pressure :	Met One, USA Barometric Pressure Sensor
Rainfall :	Envirotech RF10 range 0 to 50 mm/hr with 0.5 mm resolution.

The standard WM271 system is supplied with Sensors for Wind Speed, Direction, Temperature and Relative Humidity. Other sensors for Barometric Pressure, Solar Radiation & Rainfall are optional and can be provided at extra cost.

Memory Capacity      : Forty five days storage of all parameters in non-volatile flash memory.

Real Time Sync        : Built-in battery backed Real time clock ensures data is synchronized with real-time even after periods of prolonged power failure.

Software                   : Windows XP compatible, Envirotech MetLog software is provided for data download to a PC and analysis. MetLog supports communication via PSTN, GSM modems and direct cable connection to RS232 / USB ports. Analysis tools include export to MS Excel, Graphs, Monthly Averages & Windrose Diagrams.