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Download wind speed and direction sensors – wsd1
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WIND SPEED AND DIRECTION SENSORS – WSD1 The wind speed section of the sensor consists of a low-inertia ABS cup assembly for fast response mounted on a dual ballrace-supported stainless steel shaft. A benefit of this design is the zero power requirement needed for operation. The wind direction component of the sensor consists of a dynamically balanced wind vane operating a triple ballrace supported shaft and microtorque potentiometer with a small deadband of 3o, usually at North. The benefit of this is precise and accurate measurements in all environments. The WSD1 produces a pulse signal output, which means that most modern data capture units are compatible with these sensors with little or no interfacing. There are two mounting systems recommended; the full mast kit or the bracket kit. These options are provided because the WSD1 is a very adaptable instrument can be used in any situation or environment. TECHNICAL SPECIFICATIONS Speed Sensor: Calibration Reed detector Start up1 Accuracy Linearity Contact rating Supply voltage Supply current : : : : : : : : 1 contact closure / 1.493m. Bench tested to a minimum speed of 90m/s. 0.5 m/S typically. 2% 2% 50 Watts. (d.c. resistive) 100 Vdc maximum 1 A maximum. NB. Supply: Voltage 100Vdc Current 1A max. Contact switched must not exceed the wattage rating. May be used in circuits down to zero voltage and current. Direction Sensor: Mechanical travel Electrical travel Calibration Resistance tolerance Linearity tolerance Temperature Coefficient of wire Temperature range Max2 Supply Voltage Recommended Max. Voltage Height Max arc Weight : : : : : : 360o (Endless) 357o 2o 0 - 1K potentiometer for 0-357o electrical travel. 3% 0.5% 20ppm/oC : : : : : : -20oC to +70oC 80Vdc 24Vdc 280mm 120mm 500 gms approx. ORDERING INFORMATION WSD1 WSS1 WSS2 Wind Speed and Direction sensor Wind Speed and Direction sensor plus a full 2 metres mast assembly, guys and pegs are supplied. Wind Speed and Direction sensor plus a mounting bracket for horizontal or vertical mast up to 50mm diameter ACCESSORIES AND RELATED PRODUCTS DT2-W Small, dedicated Wind monitoring data logger DT-CAB DT2 Data logger (RS232) serial communication cable LB-380 4-20mA or 0-10V selectable wind converter for the WSD1 sensor 1 Start-up is defined as the speed required to commence the movement of the cups from a standstill in zero wind. However, in practice an anemometer rarely stops and very low wind-speeds are able to be detected due to the lowinertia cup assembly. 2To use voltages higher than the RECOMMENDED MAXIMUM, then a series limiting resistor must be included within the circuit.