WindVane PVC Housing, Rotor in blackpainted Stainless Steel Type DWS-D-DDC13 • Wind vane for relative wind direction • Opto-electronic detection • PNP- & NPN-open collector outputs in the same unit • Indication of ±7˚ of wind direction and left/right • 10 to 28 VDC supply voltage • All inputs and outputs are protected against reverse polarity and transients • Built-in heater • Dust sealing Product Description Ordering Key DWS-D-DDC13 DWS-D-DDC13 is a relative windvane designedmainly for the windmill industry for measurement of the relative wind direction. The wind vane registers deviationsin the wind direction (left/right) from the starting point. The product contains both PNP- and NPN open collec- tor outputs, in which a fixed current is switchedaccord- ing to the selected direction. A built-in self-regulated heaterreducestheriskof glazing. The heater is sup- plied separately, which makes it possible to control the heating. The DWS-V-DDC13 is equipped with a specially designed protection mecha- nism, which protects the bearings and the electronic parts against dirt and humidity. The bodyofthesensoris made of black PVC, and the rotor is produced in stain- less steel. Dynamic wind sensor Wind direction Digital output (Future subtypes) Cable version Standard cable length in full metres*) *) can be specified by customer Specifications Rated operational voltage UB12 to 24 VDC UC10 to 28 VDC Supply current (without heater) Approx. 20 mA (all outputs off) OutputSpecifications Signal NPN Open Collector constant current sinkSquare wave 12.5 mA ± 2mA PNP Open Collector constant current source Square wave 12.5 mA ± 2mA Output power£ 250 mW Load supply voltage Min. 10 VDC Max. 28 VDC Voltage dropTyp. 4.9 VDC General Specifications Dimensions Wind vane length145 mm ThreadExternal thread: M28 x 2 with one nut Materials Body Black PVC Rotor Stainless steel (AISI 303), black painted Bearings Instrument ball bearings, stainless steel CableShielded grey PVC, 8 x 0.25 mm2 Rotor/housing tighteningDust labyrinth Environment Degree of protection IP54 Ambient humidity0 to 100% RH Climatic protectionAgainst high humidity, salt and dust Ambient temperature Operating temperature -20 to 60°C (-4 to +140°F) Storage temperature-20 to 60°C (-4 to +140°F) Heating system> -20°C (> -4°F) Heater PTC-element Supply voltage 12 to 24 VAC/DC on separate wires Specifications are subject to change without notice (28.01.03)1
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