2.3 Specifications | |
Wind Speed | I |
Measurement Range | O-100 mph ~ |
Averaging Interval | 2.1 Seconds |
Resolution | 1 mph |
Threshold | <l mph |
Measurement Accuracy | f3% F.S. |
Wind Direction
Range O-360” Mechanical 350” Electrical
Resolution 2 Degrees
Accuracy +5 Degrees
Threshold 51 Mph
Current Loop
ou t puspant 4 t o 20 InA
Supply Voltage Range 10 to 48 Vdc
2-Wire Loop Interface Screw Terminal Block
3.0GENERAL DESCRIPTION
3.1Wind Speed Measurement
The WMS-22 wind sensor is designed to be mounted on the end of a 1” outside diameter pole. It is supplied with 40 feet of cable for connection to the electronics housing. The anemometer’s precision ball bearing is protected from the weather and has lifetime lubrication. The counterweight at the end of the wind vane balances the weight of the moving mass over its supporting bearing. It is important that the wind sensor be installed in a location free from any obstructions that would distort the natural flow of air across the sensor.
The full-scale (20 mA) output of the wind speed channel represents a measured 100 mph wind speed. The full-scale span of the direction channel represents a full 360 degree swing of the wind vane. The potentiometer used as a direction sensor for wind direction has a small arc of resistance discontinuity (typically 5-10”) straddling the North direction (indicated by the set screw in the mounting base). When the wind vane is pointing in this region, the loop current will be encoded as an underscale value of approximately 3.6 mA.
4.0INSTALLATION
4.1Unpacking
Empty the loose packing material from the corrugated shipping container and carefully lift out the wind sensor assembly.
List of Enclosed Materials
1.Wind Speed, Wind Direction sensor, with 40 feet of cable
2.Transmitter Housing Assembly with I/O connection terminal strips input receptacle.
3.Instruction Manual.
