Digital wind speed sensor DHV 39

DHV39 is made of naturally anodized aluminum. High-quality sealed radial ertalyte and sapphire bearings are used in the rotating measuring system. Lightweight polymer three-cup assembly (Robinson’s cross) rotates a stroboscope disc across the light beam, generated by a long-life IR diode. Interruption of the beam causes a pulse output of a frequency proportional to the wind speed. All electronic elements are protected against overvoltages by resistors and Zener diodes.

DHV39 is connected to the measuring system by 4-pin weatherproof connector, located on the bottom of the sensor. There is also a mounting support (hole 25 mm in the diameter, 40 mm deep).

Construction of sensor requires minimal maintenance. Even after years of use, when inexpensive and easily replaceable bearings are worn, measurements are almost unchanged. Normal additional mechanical load (freezing) cannot damage the sensor. The DHV39 wind speed sensor is usually paired with a DSV39 wind direction sensor, it is usual fixed to the CRSA39 crossarm, which contains a junction box and all required cables. 

Product references