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Meteo M&R PAH & PRV
The PAH series cup anemometers and PRV potentiometer windvane 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.
PAH cup anemometer
The anemometer is based on the Hall-effect principle and has a measuring
range of 0..60 m/s with a starting speed of 0.30 m/s. This affordable
good quality cup anemometer has ceramic magnets, stainless steal
bearings and mounting hardware. The PAH 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 PAH
| Measuring principle |
Hall effect with magnets |
| Air velocity range |
0..60 m/s |
| Treshold |
0,75 m/s |
| Operating temperature |
-30..+70°C |
| Pulses |
2 per rotation |
| Frequency |
107 Hz at 30 m/s |
| Power supply |
4,5..30 VDC |
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