SV8 - SD8 Anemometer and Wind vane

Anemometer SV8

Composed of 3 cups conical shaped injected on a stainless steel shaft.
The transducer consist on one pair led & phototransistor which provides a pulse output with frequency proportional to wind speed
Combined with high performance shielded bearings ensure excellent linearity, over the whole range of measure and high reliability on different temperature-humidity conditions. Low moment of inertia, low-threshold, fast response and low distance constant are guaranteed.
The variety of outputs suit most data loggers on market.

Wind vane SD8

Consist of one aluminium and steel wind vane attached to a shaft that incorporates a diametric magnet that actuates on a rotary position sensor giving an output equivalent to the direction indicated by the wind vane.
As there is not mechanical contact, there is not friction and so a high life expectancy
A low-threshold and fast response are guaranteed.
The variety of outputs suit most data loggers on market.


Environment

Sensors body is Al-Si aluminium injection moulded and rust preventive painted.
M12 IP65 polarizing connectors are equipped for an easier operation.

Bearings

Both sensors are composed of stainless steel, shielded bearings, which give them excellent dynamic characteristic with very low mechanical friction.

Heating

Optionally both sensors could be provided of internal heating system, in order to avoid bearings and shaft freezing. It is strongly recommended in cold climates.

 

SV8 - SD8 Technical Data


Technical Data SV8



General


Encoder Rotary Incremental Photocoupler
Range 0~60 m/s
Threshold 0,3 m/s
Accuracy ±3%
Output options - Pulses (frequency directly proportional to wind speed)
  - Current (4-20mA)
  - Digital 485 Mod-bus
Distance constant < 2m

Electrical Features


Power supply

5~26VDC

11~26VDC for 4-20mA

Consumption 90 mW (@ 12V)
Operating Temperature -30ºC~70ºC (with heating)

Mechanics


Case Al-Si aluminium injection moulded and rust preventive painted
Weight 290 gr (cup wheel included)
Cup Wheel Diameter 120 mm
Case Diameter 50 mm
Height 190 mm (cup wheel included)

Additional Accessories


Shaft Heating System - Low power heating  ( 10w )
  - Thermostat controlled 4ºC of activation threshold

Technical Data SD8



General


Encoder Hall Effect Magnetic
Range 1º~360º
Wind Threshold 0,3 m/s at 10º deflection
Damping factor 0,5
Resolution 1,41º
Accuracy 1,41º
Output options - 8-bits Gray code
  - Synchronous serial
  - Current (4-20mA)
  - Digital 485 Mod-bus

Electrical Features


Power supply

5~26VDC

11~26VDC for 4-20mA

Consumption 150 mW (@ 12V)
Operating Temperature -30ºC~70ºC (with heating)

Mechanics


Case Al-Si aluminium injection moulded and rust preventive painted
Weight 390 gr. (vane included)
Vane Length 235 mm
Case Diameter 50 mm
Height 240 mm (vane included)

Additional Accessories


Shaft Heating System - Low power heating  ( 10w )
  - Thermostat controlled 4ºC of activation threshold