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Wittich Meteo - Model M&R PA2 & PRV -Wind Sensors
The PA2 series cup anemometers and PRV potentiometer windvanen from Wittich & Visser are light weight instruments for measuring wind speed and wind direction. Both sensors are ideal for agro-meteorology, greenhouse automation, HVAC, safety guard regulations, etc.
PA2 cup anemometer
The anemometer is based on the Hall-effect principle and has a measuring range of 0..60 m/s with a treshold of 0,5 m/s. This affordable good quality cup anemometer has ceramic magnets, stainless steal bearings and mounting hardware. The PA2 series measures in pulse per second but can also be delivered with 4..20 mA output.
PRV potentiometer
The long life potentiometer wind vane has a mechanical angle of 360°C without stop and a starting speed between 1.2 and 1.5 m/s. This affordable high quality wind vane has oil bronze bearings and stainless steel mounting hardware. The PRV is a potentiometer vane but can also be delivered with analogue output.
Specifications PRV
- Life expectation: 0,5 m/s
- Electrical angle: 2,9 m
- Mechanical angle: -50..+65°C, 0..100%RH, 0..90 m/s
- Damping ratio: polycarbonate, teflon bearings
- Treshold: 1,2..1,5 m/s
- Linearity: 1%
- Operating temperature: -30..+80°C
Specifications PA2
- Measuring principle: Hall effect with magnets
- Air velocity range: 0..60 m/s
- Treshold: 0,5 m/s
- Operating temperature: -30..+70°C
- Pulses: 2 per rotation
- Frequency: 67 Hz at 30 m/s
- Power supply: 4,5..30 VDC