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HAL Windspeed Sensor
 
Rugged, reliable and highly accurate. Tested in wind tunnels and mountain tops. Permits rapid response to Wind gusts. UV stabilised Black Lexan plastic cups - virtually shatterproof. Shedding ice far more readily than metallised assemblies. Linear output. 214 MPH maximum electrical output, 250 MPH maximum physical movement. Supplied with 300mm stem and flexible boot.

Per Revolution...................2 pulses / cycle = 3.41 miles
1800 revolutions per minute..............102.41 miles per hour
30 revolutions per second................102.41 miles per hour
 

SIGNAL GENERATION: Permanent magnet Indox influencing a Hall effect switch with square wave output, linear variation of frequency with speed. Moment of inertia = 0.000068 S-Ft2. Rated PV factor of 20,000. 500PV@15mph, 2000@100mph. Upper bearing is centred in the plane of cup thrust for optimal loading. Distance constant: 10 feet (3.05m).

CUPS: Black polycarbonate (lexan) 50.8mm Dia. Overall Dia: Cups sweeping 190.5mm Dia. Conical cross section.
PHYSICAL: Located on a 13mm dia 300mm shaft, with flexible boot.
SHAFT: Beryllium copper fully hardened. Overall Height 81.3mm
BODY: UV-stabilised black ABS plastic. 50.8mm Dia.
BEARING: modified teflon, self lubricating.
TEMP RANGE: -55C to +60C (free of ice).
THRESHOLD: better than 3 mph.
WEIGHT: 0.5Kg.
RANGE: 0-250 mph.
ELECTRICAL: Requires 5 to 12v DC at 5mA.
       
Telephone: 024 7642 1106