Cup Anemometer PVC Housing, Rotor of black painted Stainless Steel Type DWS-V-DAC13 Anemometer with opto-electronic detection Measuring range: 2 to 30 m/s PNP and NPN open collector outputs in the same unit Current source outputs 10 to 28 VDC supply voltage All inputs and outputs are protected against reverse polarity and transients High ESD protection Built-in heater Dust sealing Product De scription Ordering Key DWS-V-DAC13 DWS-V-DAC13 is a cup glazing. The heater is sup- Type anemometer designed for plied separately, which Air velocity measuring air speed in a makes it possible to control Digital output wide variety of applications, the heating. (Future subtypes) including wind turbines, The DWS-V-DAC13 is Cable Version *) buildings, cranes, weather equipped with a specially Standard cable length in full metres stations, green-houses, etc. designed protection mech- *) can be specified by customer The product contains both anism, which protects the PNP- and NPN open col- bearings and the electron- lector outputs, in which a ic parts against dirt and fixed current is switched humidity. proportionally to the air The body of the sensor is speed at the rate of 10 puls- made of black PVC, and the es per m/s. rotor is produced in stain- A built-in self-regulated less steel. heater reduces the risk of Specifications General Spec i fi ca tions Rated operational voltage Dimensions U 12 to 24 VDC B Rotor diameter 145 mm U 10 to 28 VDC C Thread External thread: M28 x 2 with one nut Supply current (without heater) Approx. 20 mA (all outputs off) Materials Body Black PVC Measuring range 1.5 to 30 m/s Rotor Stainless steel Operating range 75 m/s (AISI 303), black painted Accuracy 3 m/s: 0.5 m/s Bearings Instrument ball bearings, 3 m/s: 10% stainless steel Cable 13 m shielded grey PVC, 2 6 x 0.25 mm Output Specifications Rotor/housing tightening Dust labyrinth Environment Signal output Degree of protection IP54 NPN Open Collector Ambient humidity 0 to 100% RH constant current sink Square wave 12.5 mA 2mA Climatic protection Against high humidity, salt PNP Open Collector and dust constant current source Square wave 12.5 mA 2mA Ambient temperature Output frequency 10 Hz per m/s Operating temperature -20 to 60C (-4 to +140F) Output power 250 mW Storage temperature -20 to 60C (-4 to +140F) Load supply voltage Min. 10 VDC Heating system > -20C (> -4F) Max. 28 VDC Heater PTC-element Voltage drop Typ. 4.9 VDC Supply voltage 12 to 24 VAC/DC on separate wires Specifications are subject to change without notice (20.06.2018) 1 DWS-V-DAC13DWS-V-DAC13 General Specifications (cont.) Inrush current 1.5 A IEC 61000-4-5 Power consumption -20C (-4F): app. 10 W Surge 1.2/50 s +20C (+68F): app. 5 W Power port, Ri = 2 500 V +60C (+140F): app. 1.5 W Signal port, Ri = 47 2000 V IEC 61000-4-6 EMC Conducted disturbances IEC 61000-4-2 induced by radio-frequency Contact discharge 4 kV fields 12 V rms Air discharge 8 kV IEC 61000-4-3 Mounting position Vertical with M28 thread Radiated radio-frequency 15 V/m Weight 1.1 kg incl. 13 m cable and Electromagnetic fields packaging IEC 61000-4-4 Fast transients/burst Power port, performance B 2 kV Signal port, performance B 1 kV Dimensions Wiring Diagram 145 Brown (+) Current Generator Beige PNP O.C. Sensor Current Generator Black NPN O.C. Blue (-) Green M28 X 2 Heater Yellow All dimensions in mm Shield PV output versus wind speed Frequency Hz 300 250 Frequency Hz 200 150 100 50 0 0,00 5,00 10,00 15,00 20,00 25,00 30,00 Wind speed m/sec 2 Specifications are subject to change without notice (20.06.2018) 137 183