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The RainWise WindLog is a compact, inexpensive wind data logger, designed to meet the needs of people considering the purchase of a wind turbine. While many people rely on wind charts to assist them with this purchase decision, the charts don’t provide detailed information for a particular area. WindLog allows you to do your own accurate wind study to optimize turbine placement at a specific location and its performance, once installed.
WindLog operates on three AA batteries. Battery life will depend on the environment and logging rates. Typical life should be around six months. Lithium batteries are recommended for cold environments. When connected to a computer the WindLog will use the USB port power to run. This further extends the life of the batteries.
The Mini-Aervane wind sensor is equipped with low friction race bearings. This reduces the threshold to approximately 1 mile per hour. The wind direction sensor has a 16-point resolution. Logged direction readings are averaged readings.
WindSoft - Free Windows Software Package
Each RainWise WindLog ships with a free Windows based application, WindSoft. The software uses a SQLite database to track and record wind information. While connected, WindSoft will update the database every minute. Downloaded data is integrated into the database. By combining both logged and real-time data, WindLog can be used both online and offline.
WindSoft can generate statistics, graphs and reports. It also can export CSV files for use with Microsoft Excel or any other application that supports CSV files.
WindLog ships with a 15 foot USB cable. This is the maximum standard USB cable length. A USB extender is available that will allow you to extend this cable to 100 feet using CAT5e network cable.
A support mast is included with the WindLog. This mast can be used with any of the RainWise mounting systems. The mast may also be attached to a support structure using U-Bolts or lag screws.
Features:
- 1 MB of Flash memory stores over a years worth of wind data
- Operates on 3 AA Alkaline or Lithium batteries
- Uses USB power when connected to a computer
- USB port provides fast downloads
- Free Windows software
- Logs average speed, wind gust and average direction
- User selectable logging intervals from 1 minute to 1 hour
Specifications:
- Wind Speed:
- Range: 0 – 67 meters per second (150 mph)
- Accuracy: +/-2%
- Sensor: 4-blade propeller – Lexan – UV inhibited
- Threshold: .45m/sec. (1 Mph)
- Transducer: Magnetic dry reed switch
- Frequency: 1 cycle per revolution
- Wind Direction:
- Range: 360° – no deadband
- Resolution: 22.5°, averaged
- Accuracy: +/-22.5°
- Sensor: Balanced vane with a 16.5cm (6.6 inch) radius
- Threshold: .9 m/sec. (2 mph) at a 10° deflection.
- The balanced propeller is supported in stainless steel
- Instrument ball bearings
- The direction is obtained through 8 dry reed switches with no dead band
- The M-AV sensor is made from UV inhibited Dupont
Delrin, Lexan and stainless steel
- Connectivity: USB 2.0 Full speed
- Accuracy is traceable to NIST
- Memory: 1 MB of Serial Flash. Typical life expectancy of 100,000
write cycles. Wear leveling algorithms ensure optimal use of the
entire flash memory space.
- Power requirements: 3 AA Alkaline batteries
- Battery life: approximately 6 months
PC System Requirements:
- Operating System: Windows XP SP2 or Higher
- Processor: Pentium 233 MHz or above
- Processor 233 MHz
- RAM: 128 mb or above
- Hard disk: 50 mb free space (dependent on the quantity of data
stored)
- Super VGA Display Adapter and monitor (800 x 600)
- CD-ROM disk drive
- Keyboard and mouse
- Microsoft .NET Framework 3.5 SP1 and Windows Installer 3.1 are
required. Both are available on the WindSoft CD-ROM or from
Microsoft's web site.
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