Our Products:
Wind – Vane
Wind Speed Sensor
Model : SWA8600
- Wind speed Sensor: 3-Cup Anemometer.Sensing : 3 cup assembly mounted on friction free shaft and
coupled to a chopper. - Starting threshold : 0.5 meters/sec .
- Range : 0 to 60 meters/sec .
- Distance constant : 2.5 Meters
- output proportional to wind Built in line driver
to drive long cable > 50 ohms loop resistance. - Accuracy : Better than 0.5 m/s up to 10 m/s + 2% FSD
- Diameter of cup : 50 mm.
- Diameter of cup assembly: 165 mm.
- Construction of sensor body : Brass housing and stainless steel shaft .
Principle Of Operation
SUNPRO anemometer is a fast-response, low-threshold opto-electronic anemometer. When rotated by wind, a chopper on the anemometer shaft interrupts an infrared light source, generating pulses from a photo transistor. The signal is amplified and fed through a line driver. The frequency is proportional to wind speed. The anemometer is provided with a 3-pin connector for easy replacement and comes with 10 meters of shielded cable.
For operation at low temperature, the sensor can be supplied with a built-in heater. The Anemometer can be supplied with a 20W 24V DC built-in heater for operation at low temperatures.
Wind Direction Sensor
Model : SWD 8601
- Wind Direction Sensor: Wind Vane.
- Sensing: Vane coupled to the linear endless potentiometer.
- Starting threshold: Better than 0.5 meters/sec.
- Range : 0 to 357 degrees (3 degrees electrical gap in the
Potentiometer - Output : 0 to 5 kilo-ohm resistance ( 0 to 357 degrees).
- Resolution: 1 degree.
- Accuracy: +/- 3 degrees.
- Operating Temperature : -40 to + 60 degree Celsius
- Construction of sensor body: Brass housing, stainless steel shaft and
aluminum van
Principle Of Operation
Wind vane is a counterbalanced, low-threshold wind vane. A Linear, wire-wound, endless potentiometer is coupled to the vane by an SS shaft. As the vane turns, it rotates a stainless steel shaft, which is coupled to the potentiometer. This potentiometer has excellent linearity, very low starting torque.
The north of the wind vane is marked on its body. This line is to be aligned with the actual North with the help of a prismatic compass at the time of installation. The sensor gives minimum resistance at North (i.e., 0 degrees approximately 20 ohms ). The resistance output linearly proportional to the position of the wind vane.
Combined Wind Speed/wind Direction Sensor
Model : SLAW 8701
SUNPRO sensor model SLAW 8701 is a 3 cup Anemometer and Wind vane built in to a single unit for
convenience and lower cost at the same time not compromising on quality and accuracy.
Construction
- Body: BRASS
- Rotor cup assembly: ALUMINIUM
- Rotor Shaft: Stainless steel
- Bearings: Sealed 623Z bearings
- Wind vane: Brass housing, stainless steel shaft, and aluminum vane
- Potentiometer: Sealed long-life
- Clamping support: Powder-coated Aluminum
- Output Connector: 5-pin MS Connector
Specifications
(A) Wind Direction:
- Sensor: Wind vane coupled to a Linear endless Potentiometer
- Range : 0 to 359 degrees from North
- Accuracy: + 3 degrees.
- Linearity: Within the accuracy limit
- Output : 0 to 5 K ohms resistance corresponding to the range
Option of 0 to 1 Volt or 0 to 2.5 Volt for the range - Power input: 5 to 12 volts, depending on the user’s requirement.
- Termination : On a 4/5pin MS connector( including Anemometer )
(B) Wind Speed:
- Sensor: 3-cup rotor coupled to a chopper and an IR emitter/detector circuit.
- Range: Wind speed 0 to 60 Meters /sec
- Accuracy: + 2% of full scale
- Starting Threshold: 0.5 Meters /sec
- Linearity: Within the accuracy limits.
- Output: TTL level pulses frequency proportional to W, Speed.
Approx. 15 Hz/ Mtr/sec Option – Voltage output 0 – 1 V or 0 – 2.5V
for 0 to 60 Meters
