The Wind Monitor is an accurate and reliable wind sensor specifically designed for the rigors of the marine environment. The wind speed sensor is a four blade helicoid propeller. Unique transducer produces a pulse signal without electrical contacts or slip rings. The wind direction sensor is a durable molded vane. Vane angle is sensed by a precision potentiometer housed in a sealed chamber. With known voltage applied to the potentiometer, the output voltage is directly proportional to vane angle. All materials are carefully selected for corrosion resistance and maximum durability in the harsh marine environment. Stainless steel bearings are used throughout. Special waterproof lubricant further enhances reliability. The instrument mounts on standard 1 inch pipe. For specific applications, separate single conditioning devices are available. Model 05603C Wind Sensor Interface offers calibrated 0-5VDC outputs for wind speed and wind direction. Model 05631C Wind Line Driver provides calibrated 4-20 mA current signals for each channel, useful in high noise areas or for long cables of up to several kilometers. Each interface circuit is supplied in a weatherproof junction box with mounting hardware for installation near the sensor.
| Ordering Information | Model |
|---|---|
| WIND MONITOR | 05103-58 |
| WIND SENSOR INTERFACE (0-5 VDC) | 05603C |
| WIND LINE DRIVER (4-20 mA) | 05631C |
| Sensor Cable (6 COND SHILDED) | 18721 |
Specifications
Range:
Wind speed: 0-100 m/s (224 mph)
Azimuth: 360° mechanical, 355° electrical (5° open)
Accuracy:
Wind speed: ±0.3 m/s (0.6 mph) or 1% of reading
Wind direction: ±2 degrees
Threshold:*
Propeller: 1.0 m/s (2.2 mph)
1.1 m/s (2.4 mph) 05106
Vane: 1.1 m/s (2.4 mph) 05103
Dynamic Response:*
Propeller distance constant (63% recovery) 2.7 m (8.9 ft)
Vane delay distance (50% recovery) 1.3 m (4.3 ft)
Damping ratio: 0.3
Damped natural wavelength: 7.4 m (24.3 ft)
Undamped natural wavelength: 7.2 m (23.6 ft)
Signal Output:
Wind speed: magnetically induced AC voltage, 3 pulses
per revolution. 1800 rpm (90 Hz) = 8.8 m/s (19.7 mph)
Azimuth: analog DC voltage from conductive plastic
potentiometer – resistance 10K Ω, linearity 0.25%,
life expectancy – 50 million revolutions
Power Requirement:
Potentiometer excitation: 15 VDC maximum
Dimensions:
Overall height: 37 cm (14.6 in)
Overall length: 55 cm (21.7 in)
Propeller: 18 cm (7 in) diameter
Mounting: 34 mm (1.34 in) diameter (standard 1 inch pipe)
Weight:
Sensor weight: 1.0 kg (2.2 lbs)
Shipping weight: 2.3 kg (5 Ibs)
*Nominal values, determined in accordance with ASTM standard procedures
MODEL 05603C 0-5 VDC outputs
Power Requirement:
8-24 VDC (5 mA @ 12 VDC)
Operating Temperature:
-50 to 50° C
Output Signals:
0-5.00 VDC full scale
MODEL 05631C 4-20 mA outputs
Power Requirement:
8-30 VDC (40 mA max.)
Operating Temperature:
-50 to 50° C
Output Signals:
4-20 mA full scale