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Overview
The 024A, manufactured by Met One, is a wind vane that measures wind direction only. You can use it in tandem with the 014A Wind Speed Sensor; however, this combination has been largely replaced by the 034B, which monitors both wind speed and wind direction.
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Detailed Description
The 024A Wind Vane measures wind direction from 0 to 360 degrees with a 5 degree accuracy specification. Wind direction is sensed with a 10 kohm potentiometer. With the precision excitation voltage from the data logger applied to the potentiometer element, the output signal is an analog voltage that is directly proportional to the azimuth of the wind direction.
Compatibility
Note: The following shows notable compatibility information. It is not a comprehensive list of all compatible or incompatible products.
Data Loggers
| Product | Compatible | Note |
|---|---|---|
| CR1000 (retired) | ||
| CR1000X (retired) | ||
| CR300 (retired) | ||
| CR3000 (retired) | ||
| CR310 | ||
| CR350 | ||
| CR6 | ||
| CR800 (retired) | ||
| CR850 (retired) |
Additional Compatibility Information
Mounting
The 024A can be attached to a crossarm via a 17953 NU-RAIL fitting or a CM220 Right Angle Mounting Bracket. Alternatively, the 024A can be attached to the top of a CM106B or a stainless-steel tripod via the CM216 Sensor Mounting Kit. The CM216 extends 4 in. above the mast of the tripod.
Data Logger Considerations
The 024A uses one single-ended input channel on the data logger. An excitation channel is required but due to the high impedance of the 024A, can be shared with other high impedance sensors.
Programming
The 024A is read by the BrHalf instruction in CRBasic and by Instruction 4 (Excite-Delay-Single-ended Measurement) in Edlog.
Specifications
| Sensor | Vane |
| Measurement Description | Wind direction |
| Operating Range | 0 to 360° |
| Threshold | 0.45 m s-1 (1.0 mph) |
| Accuracy | ±5° |
| Operating Temperature Range | -50° to +70°C (assumes non-riming conditions) |
| Delay Distance | < 1.5 m (5 ft) |
| Damping Ratio |
|
| Resolution | 0.5° |
| Height | 33.8 cm (13.3 in.) |
| Length | 44.7 cm (17.6 in.) |
| Vane Height | 30.5 cm (12 in.) |
| Vane Width | 7.6 cm (3 in.) |
| Weight | 450 g (1 lb) |
Potentiometer |
|
| Sand, Dust, and Fungus | MIL-E-5272 |
| Salt Spray | MIL-E-12934 |
| Resistance | 0 to 10 kΩ |
Documents
Brochures
Frequently Asked Questions
Number of FAQs related to 024A-L: 1
-
- Using Short Cut, click the applicable wind direction sensor in the Selected Sensors list of the Outputs screen.
- The two output options enabled are Sample and WindVector. Select WindVector.
- The WindVector instruction has output options. Select an option with mean wind direction in it.
Case Studies
In a country as large as Argentina, monitoring growing conditions in different agricultural regions is......read more
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