H-375 High Performance Wind Sensor
The WaterLOG® Model H-375 Wind Monitor is a high performance, rugged yet accurate and light weight, wind sensor for measuring horizontal wind speed and direction. Its simplicity and corrosion-resistant construction make it ideal for a wide range of wind measuring applications.
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- Operating temperature range of -50 to 60 C
- UV stabilized plastic with stainless steel and anodized aluminum fittings
- Precision grade, stainless steel ball bearings
- Transient protection and cable terminations located in an environmentally sealed junction box
- Interfaces with many data loggers
- Precision Potentiometer housed in a sealed chamber
- Instrument mounts on a standard 1 inch pipe
- Mounting orientation ring assures correct alignment of wind direction reference
- Slip rings and brushes are eliminated for increased reliability
| Data Output | |||
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General
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Range
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Wind Spead | 224 mph (0-100 m/s) |
| Azimuth | 360° mechanical, 355° electrical (5° open) | ||
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Accuracy
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Wind Speed | ± 0.6 mph (0.3 m/s) | |
| Wind Direction | ± 3° | ||
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Threshold
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Propeller | 2.2 mph (1.0 m/s) | |
| Vane | 2.4 mph (1.1 m/s) | ||
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Dynamic Response
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Propeller Distance Constant | (63% recovery) 8.9 ft. (2.7 m.) | |
| Vane Delay Distance | (50% recovery) 4.3 ft. (1.3 m.) | ||
| Damping ratio | 0.3 | ||
| Damped Natural Wavelength | 24.3 ft. (7.4 m.) | ||
| Undamped Natural Wavelength | 23.6 ft. (7.2 m.) | ||
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Signal Output
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Wind Speed | Magnetically induced | |
| Azimuth | Magnetically induced AC voltage, 3 pulses per revolution. 1800rpm (90 Hz) = 19.7 mph (8.8 m/s) | ||
| Life Expectancy | 50 million revolutions | ||
| Wind Speed Output | The coefficient used to convert the frequency ino the desired units should be entered as the frequency slope. | ||
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| Mechanical Data | |||
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Physical
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Dimensions
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Overall Height | 14.6 in. (37 cm.) |
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Overall Length |
21.7 in. (55 cm.) |
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Propeller |
7 in. (18 cm.) diameter |
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Mounting |
1.34 in. (34 mm.) diameter (standard. 1 in. pipe) |
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Weight
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Sensor Weight |
2.2 lbs. (1.0 kg.) |
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Shipping Weight |
5 lbs. (2.3 kg.) |
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Power |
Power Requirement |
Potentiometer Excitation: 15 VDC maximum |
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| Environmental | |||
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Temperature |
Temperature Range | -50° C to 50° C | |
| Miscellaneous | |||
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Table
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Multiply Frequency By |
To Get Units |
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1 |
Hertz |
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0.0980 |
Meters/Second |
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0.1904 |
Knots |
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0.2192 |
Miles/Hours |
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.03528 |
Kilometers/Hour |
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20 |
Propeller RPN |
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| Warranty |
The WaterLOG® H-375 is warranted against defects in materials and workmanship for two years from date of shipment. |
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Specifications subject to change without prior notice due to ongoing commitment to product testing and improvement. LR February 15, 2011. D47 211. |
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