Campbell Scientific 03001-L R.M. Young Wind Sentry Set - Manual (Page 6)

R.M. Young Wind Sentry
The 03301 Vane ships with:
(1) 03301 Vane
(1) 10” x 3/4” threaded galvanized pipe (P/N 12243)
(1) Allen wrench (P/N 5201)
2. Specifications
Wind Speed (Anemometer) Specifications
Range:
0 to 50 m s-1 (112 mph), gust survival 60 m s-1 (134
mph)
Sensor: 12 cm diameter cup wheel assembly, 40 mm diameter
hemispherical cups
Accuracy: ±0.5 m s-1 (1.1 mph)
Turning Factor: 75 cm (2.5 ft)
Distance Constant
(63% recovery):
2.3 m (7.5 ft)
Threshold: 0.5 m s-1 (1.1 mph)
Transducer: Stationary coil, 1350 ohm nominal resistance
Transducer Output: AC sine wave signal induced by rotating magnet on cup
wheel shaft
100 mV peak-to-peak at 60 rpm; 6 V peak-to-peak at
3600 rpm
Output Frequency: 1 cycle per cup wheel revolution; 0.75 m s-1 per Hz
Cup Wheel Diameter: 12 cm (4.7 in)
Weight:
113 g (4 oz)
Wind Direction (Vane) Specifications
Range:
360° mechanical, 355° electrical (5° open)
Sensor: Balanced vane, 16 cm turning radius
Accuracy: ±5°
Damping Ratio: 0.2
Delay Distance
(50% recovery):
0.5 m (1.6 ft)
Threshold: 0.8 m s-1 (1.8 mph) at 10° displacement
1.8 m s-1 (4 mph) at 5° displacement
Transducer: Precision conductive plastic potentiometer; 10 K ohm
resistance; 0.5% linearity; life expectancy 20 million
revolutions.
Rated 1 watt at 40°C, 0 watts at 125°C.
Transducer Output: Analog dc voltage proportional to wind direction
angle with regulated excitation voltage supplied by
the datalogger
Vane Length: 22 cm (8.7 in)
Vane Weight: 170 g (6 oz)
Wind Sentry Assembly Specifications
Operating Temperature: -50° to +50°C assuming non-riming conditions
Overall Height:
32 cm (12.6 in)
Crossarm Length: 40 cm (15.7 in) between instruments (center-to-
center)
Mounting Diameter: 26.7 mm (1.05 in), mounts on standard 3/4 in. pipe
2