Buy Davis Instruments 6415, Sonic Anemometer

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The Sonic Anemometer is designed to measure wind-related conditions without moving parts. Pairs of electro-acoustic transducers in the anemometer send sonic pulses back and forth, and measure the time it takes for the pulse to travel from one to the other. This time is affected by the movement of the air, which allows the anemometer to calculate wind speed and direction, calibrated by temperature measurements. The sonic anemometer has its own solar panel, so requires no external power. It can be used with an EnviroMonitor Node to add wind data to an EnviroMonitor system, as well as a replacement anemometer to your Davis weather station. Installed in a Sensor Transmitter, it can be used to include additional wind stations in your existing system when reporting to a WeatherLink Live.

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Operating Temperature	+5°F to +131°F (-15°C to +55°C)
Sensor Type	Ultrasonic sensor
Attached Cable Length	40' (12 m)
Cable Type	4-conductor, 26 AWG
Connector	Modular connector (RJ-11)
Maximum Cable Length	250' (76 m)
Wind Direction
Display Resolution	16 points (22.5°) on compass rose, 1° in numeric display
Accuracy	+-2 degrees at wind speeds ≥ 7 mph (6 kts, 110 km/h, 3 m/s) +-4 degrees at wind speeds <7 mph (6 kts, 110 km/h, 3 m/s)
Wind Speed
Resolution and Units	Measured in 1 mph. Other units are converted from mph and rounded to nearest 1 km/h, 0.1 m/s, or 1 knot
Range	0 to 89 mph, 0 to 78 knots, 0 to 40 m/s, 0 to 144 km/h
Accuracy	+-2 mph (2 kts, 3 km/h, 1 m/s) or +-4%, whichever is greater
Maximum Cable Length	250' (76 m). Maximum wind speed reading decreases as length of cable increases
Resolution and Units	Measured in 1 mph. Other units are converted from mph and rounded to nearest 1 km/h, 0.1 m/s, or 1 knot
Input/Output Connections
Black	Wind speed contact closure to ground
Red	Ground
Green	Wind direction pot wiper (20KΩ potentiometer)
Yellow	Pot supply voltage
Wind Speed Translation Formula	V = P(2.25/T) (V = speed in mph, P = no. of pulses per sample period T = sample period in seconds))
Wind Direction Translation	Variable resistance 0 - 20KΩ; 10KΩ = south, 180°
Material and Dimensions
Material Control Head	Polyacetal
Material Anemometer Arm	Clear-anodized aluminum
Dimensions (length x width x height)	15.0" x 2.4" (380 mm x 60 mm)
Weight	7 oz. (200 g)

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Product Details

Operating Temperature	+5°F to +131°F (-15°C to +55°C)
Sensor Type	Ultrasonic sensor
Attached Cable Length	40' (12 m)
Cable Type	4-conductor, 26 AWG
Connector	Modular connector (RJ-11)
Maximum Cable Length	250' (76 m)
Wind Direction
Display Resolution	16 points (22.5°) on compass rose, 1° in numeric display
Accuracy	+-2 degrees at wind speeds ≥ 7 mph (6 kts, 110 km/h, 3 m/s) +-4 degrees at wind speeds <7 mph (6 kts, 110 km/h, 3 m/s)
Wind Speed
Resolution and Units	Measured in 1 mph. Other units are converted from mph and rounded to nearest 1 km/h, 0.1 m/s, or 1 knot
Range	0 to 89 mph, 0 to 78 knots, 0 to 40 m/s, 0 to 144 km/h
Accuracy	+-2 mph (2 kts, 3 km/h, 1 m/s) or +-4%, whichever is greater
Maximum Cable Length	250' (76 m). Maximum wind speed reading decreases as length of cable increases
Resolution and Units	Measured in 1 mph. Other units are converted from mph and rounded to nearest 1 km/h, 0.1 m/s, or 1 knot
Input/Output Connections
Black	Wind speed contact closure to ground
Red	Ground
Green	Wind direction pot wiper (20KΩ potentiometer)
Yellow	Pot supply voltage
Wind Speed Translation Formula	V = P(2.25/T) (V = speed in mph, P = no. of pulses per sample period T = sample period in seconds))
Wind Direction Translation	Variable resistance 0 - 20KΩ; 10KΩ = south, 180°
Material and Dimensions
Material Control Head	Polyacetal
Material Anemometer Arm	Clear-anodized aluminum
Dimensions (length x width x height)	15.0" x 2.4" (380 mm x 60 mm)
Weight	7 oz. (200 g)

Note

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Davis Instruments 6415 Sonic Anemometer

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Technical Details

Reviews