A27

Product Information Technical Specification Downloads

Model A27 Indra Wind Speed Data Logger

Operating Power:
3.6 V Litium Battery
Accuracy: 3 - 10 MPH +1 MPH, 10 - 200 MPH +/-5%
Use: General Monitoring, Wind Energy

NEW FEATURES

Record 16,383 Wind Speed Readings
Battery Powered
1 Second to 12 Hour Averaging Period
Analyze data using Windows based software
Meters per second
Kilometers per hour

The Indra Wind Speed Data Logger is a stand alone system which provides a detailed record of wind speed. Indra can record up to 16,383 readings in it’s nonvolatile solid state memory. Stored data will not be lost should the battery become exhausted. The recorded information is transfered to a personal computer or personal data assistant via serial cable for analysis. When linked to a personal computer it will allow monitoring and recording of wind speed in real time. An interface cable & software are required at additional cost to transfer and analyze data from Indra.

One cable & software can be used to collect data from multiple recorders. Model numbers for cable and software are listed in specifications.

TECHNICAL SPECIFICATION:

HARDWARE
Operating Power:	3.6 V lithium batter Model LTC-7PN
Input Device:	A75-101 Anemometer
Environmental Protection:	ABS - None, requires shelter. N4PC - Weatherproof
Displays:	One LED
Controls:	None
Accuracy:	Electronics- +/- 23 PPM
Resolution:	Wind Speed 0.34 MPH @ 10 second sample rate
Ambient Instrument:	-20 / 60 degrees C
imensions:	ABS - 12.5"L X 1.4 "W X 0.6" D N4PC - 7" L X 5" W X 3" D
Weight:	Data Loger 0.9 Oz
Connectors:	Signal - Terminal Block
Maintenance:	Anemometer - Recalibrate annually & replace every 5 years.
Special Requirements:	External lightning arrestor recommended for sensor protection. Tower: Rohn-Radian telescoping guyed towers: H20 (20 feet), H30 (30 feet), H40(40 feet), H50 (50 feet)
SOFTWARE
Multiple Graphs	Simultaneously analyze data from several data loggers
Graphical Cursor	One click displays readings by time, value, parameter or sample number
Data Table	Instantly access tabular view for detailed dates, times, values & annotations
Scaling Options	Autoscale function fits data to the screen or allows users to manually enter their own
Formatting Options	Change colors, line styles, plotting options, show or hide channels
Statistics	Calculate averages, min, max, standard deviation with the touch of a button
Export Data	Export data in a variety of common formats or switch to Excel with a single click
Logger Configuration	Easy set up & launch of data loggers with immediate or delayed start, preferred sample rate and device ID
Communications	Automatically sets up communication port, or lets user select configuration
Communications Cable & Software	IFC110 PC with Serial RS232 Port IFC200 PC with USB Port

Product Specification Sheet: Indra Model A27 Wind Speed Data Logger

EPA Meteorological Monitoring Guidance for Regulatory Modeling Applications EPA-454/R-99-005

Beaufort Wind Scale - NWS Storm Prediction Center

Federal Meteorological Handbook