Accuracy:
±0.5 m/s (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 mph)
Transducer:
Stationary coil, 1300-ohm nominal resistance
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 per Hz
Cup wheel diameter:
12 cm (4.7 in)
Weight:
113 g (4 oz)
6.2 Wind direction (vane)
Range:
360° mechanical, 352° electrical (8° open)
Sensor:
Balanced vane, 16 cm turning radius
Settling time:
20 ms
Damping ratio:
0.2
Delay distance
(50% recovery):
0.5 m (1.6 ft)
Threshold:
0.8 m/s (1.8 mph) at 10° displacement
(1.8 m/s (4 mph) at 5° displacement)
Transducer:
Precision conductive plastic potentiometer; 10 kΩ resistance; 1.0%
linearity; life expectancy 50 million revolutions
Rated 1 W at 40 °C, 0 W at 125 °C
Transducer excitation
Requirement:
Regulated DC voltage, 15 VDC max
Output:
Analog DC voltage proportional to wind direction angle with
regulated excitation voltage supplied by the data logger
Vane length:
22 cm (8.7 in)
Vane weight:
170 g (6 oz)
Wind Sentry Series
6
