R. M. Young Wind Monitor

The YOUNG Model 05103 Wind Monitor measures horizontal wind speed and direction.  Originally developed for ocean data buoy use it is rugged and corrosion resistant, yet accurate and light weight.  A four-blade helicoid propeller, used to measure wind speed, generates an AC sine wave signal upon rotation.  Wind direction is determined by a vane attached to a precision potentiometer inside an internal housing.  UV stabilized plastic with stainless steel and anodized aluminum parts are used in the construction of the sensor.  Precision grade stainless steel ball bearings with light contacting  seals and a wide temperature grease are used to help exclude contamination.  The sensor mounts on a standard 1-inch IPS pipe.  A mounting orientation ring is included that engages with the base of the sensor to retain orientation when the sensor is removed for maintenance.  Terminations are made in a junction box at the base of the sensor by small clamp-style connectors (no special connectors are required).

The Wind Monitor is also available with 0-5 VDC outputs, Model 05103V, or 4-20 mA outputs, Model 05103L (both models scaled for 0-100 m/s and 0-360°).  The 05103L is recommended for use in high noise areas or for installations with long cables, typically 300 meters (1,000 feet) or more, up to several kilometers.

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: ± 3°

Threshold: *     Propeller: 1.0 m/s (2.2 mph)
                         Vane: 1.1 m/s (2.4 mph)
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)

                              Wind direction: DC voltage from conductive plastic potentiometer − resistance 10K Ω, linearity 0.25%, life expectancy − 50 million                               revolutions

Power Requirement:                Potentiometer excitation: 15 VDC maximum
Operating Temperature:             -50 to 50°C
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:                             1.0 kg (2.2 lbs)
Shipping weight:               2.3 kg (5 lbs)
Model 05103V:             Signal outputs: 0-5.00 VDC full scale

                                     Power requirement: 8-24 VDC (5 mA @ 12 VDC)

Model 05103L:                Signal outputs: 4-20 mA full scale

                                      Power requirement: 8-30 VDC (40 mA max.)

*

Nominal values, determined in accordance with ASTM standard procedures.