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- Seac - Model SD8 - Wind Vane
Seac - Model SD8 -Wind Vane
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.
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