Digital wind speed sensor DHV 39
Wind speed sensor DHV 39 is a rotating low-threshold digital optoelectronic sensor for measuring wind speed. It is made of naturally anodised aluminium and stainless steel. Quality sealed ball bearings and Teflon bearing are used for the rotating measuring system.
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Optoelectronic sensor for wind speed
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Quality construction: anodised aluminium, ball and Teflon bearings
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Type calibrated in wind tunnel
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Optoelectronic transducer, digital pulse output
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Low starting speed
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No individual calibration required
Wind speed sensor DHV 39 is a rotating low-threshold digital optoelectronic sensor for measuring wind speed. It is made of naturally anodised aluminium and stainless steel. Quality sealed ball bearings and Teflon bearing are used for the rotating measuring system.
A lightweight three-cup assembly (Robinson’s cross) rotates a stroboscope disc through the light beam, generated by a long-life IR diode. Interruption of the beam causes pulse output with a frequency, proportional to the wind speed. All electronic elements are protected against overvoltages by resistors and Zener diodes.
DHV 39 is connected to the measuring system by 4-pin weatherproof connector, located at the bottom of the sensor. There is also a mounting support (hole 25 mm in the diameter, 40 mm deep).
Construction of sensor requires very little maintenance. Even after years of use, when inexpensive and easily replaceable bearings are worn, sensor characteristics are almost unchanged. Normal additional mechanical load (freezing) cannot damage the sensor. Wind sensor pair (DHV 39 + DSV 39A) is usual fixed to the CRSA 39 crossarm, containing junction box and cabling.
| Measuring range: | 0,1 to 60 m/s | Distance constant: | aprox. 3 m |
| Starting speed: | 0,1 m/s | Accuracy: | +/- 0,5 m/s |
| Resolution: | 0,05 m/s | Sensitivity: | 20 imp./m |
| Output frequency: | 1 kHz at 50 m/s | Output voltage: | min. 10 V (HIGH) |
| Power supply: | 12 V DC | Power consumption: | 500 mW max |
| Operating temp.: | -50 to + 60 ° C | Storage temp.: | -50 to + 80 ° C |
| Connection: | 3 wire, shielded | Connector: | Souriau, 4-pole |
| Dimension: | F 200 x 270 mm | Mass: | 0,5 kg |
| Title | Description | Filename |
|---|---|---|
| DHV 39 Brochure | DHV 39 Brochure | DHV_39_rev_1.pdf |
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